SK8671Y1 - Hybrid umbilical cable for plasma device - Google Patents

Abstract

The technical solution relates to a hybrid umbilical cable for a plasma device comprising, in a radial outward direction, the following layers / components: a pipe (5) wrapped with an electrical insulation layer (9), which together create form a hydraulic conduit (21), an additional electrical insulation layer (10), at least one electric cable (7), which consists in a radial outward direction of: an electrical conductor (4a) in the form of a sheath, an additional electrical insulation layer (10), the electrical insulation layer (9); the additional electrical insulating layer (10); inner carrying and protective sheath (3) composed of carrying elements (22) of inner carrying and protective sheath having the mechanical strength of more than 1.0 x 106 Nm/kg, outer carrying and protective sheath (2) composed of carrying elements (24), of the outer carrying and protective sheath having the mechanical strength of more than 1.0 x 106 Nm/kg, the additional electrical insulation layer (10), an external electrical insulation layer (1); wherein the umbilical cable further comprises at least one optical data line (8) and at least one other electrical cable, whereby the carrying elements (22) of the inner carrying and protective sheath being twisted in one direction; and the carrying elements (24) of the outer carrying and protective sheath are twisted in the opposite direction, and wherein the additional electrical insulation layer (10) has the dielectric strength of more than 5 kV.

Description

Technical field

The technical solution relates to a power and fluid transmission line in the well.

BACKGROUND OF THE INVENTION

In order to carry out the material removal process using a plasma device at depth, it is necessary to transfer sufficient electrical energy, the required types of fluids and data communication from the earth's surface directly to a plasma device located at a depth beneath the electrohydraulic hybrid transmission line. . Its purpose is not only the transmission of sufficient electricity and hydraulic fluids, but also the transmission of data communication between the plasma device and the surface. During operation, the entire mass of the plasma device is hung on the transmission line, and dynamic forces due to friction and fluid flow in the well.

The trend in the transmission of electricity and hydraulic fluids for drilling technology is currently progressing in several directions.

The most well-known systems are used for the transmission of energy, fluids and data communication for submarine facilities. submarine cables and umbilicals cables. The combination of submarine cables and the “Coiled Tubing” system can also be used to transfer energy and fluids, which means that the submarine cables are housed in a protective tube.

Umbilicals cables are available in several versions for various applications. The most well known are umbilicals transmission lines with integrated steel tubes, plastic tubes, high voltage power transmission, optical data communication and the like. Each type has its specifics and is able to cover its area, but at the expense of something else (eg high voltage vs. large cable diameter).

The length of the transmission line used to power the plasma device is limited by several factors. The most important of them is weight. In the case of transmission lines, the “Umbilicals” type is significantly lighter than the “Coiled Tubing” version, but at the same time it is less resistant to wear and cannot be used in angled boreholes

U.S. Pat. US 5,902,958 discloses an arrangement of cable umbilicals components which comprises three centrally located hydraulic tubes in a spiral arrangement surrounded by an annular cable and a hydraulic tube. This arrangement ensures the flow of the required amount of operating fluid while maintaining the optimum minimum bending radius.

U.S. Pat. US 2011/0075978 A1 discloses cables for use in vertical wells. The cables are provided with at least two protective layers to protect the internal structure of the cable, which may be adversely affected by the positioning of the cable in the well environment.

The current design and manufacture of transmission lines is based on a concentrated (concentric) design. For example, in US Patent No. 7,798,234 B2 a variant of umbilicals of a transmission line suitable for the remote control of flaps, valves and various other devices is used, whereby different types of fluids can be supplied to the underwater equipment by said transmission line. At the same time, not only various signals but also electrical energy can be transmitted using umbilicals of the transmission line. The transfer of fluids can be carried out by means of steel tubes, the electrical lines being located around or inside the steel tubes. The support elements used are not only steel tubes which serve for the transport of the medium, but also additional steel support elements in the form of steel bars which are inserted into the inner structure of the transmission line. These additional support elements replace plastic filling elements. This solution is not suitable for large depths. The reason is the large weight of the umbilical transmission line. Increasing the thickness of the steel tube walls will increase both the mechanical strength and the weight of the transmission line. The same is also true for the case of complementary supporting steel elements.

In addition, the concept makes it possible to place a pipeline in which fluid flows in the center of the transmission line. Thus, if the design of the transmission line was only needed to transport one type of medium, the design would be relatively simple, since it could be based on current production processes. However, as there is a need for the transport of multiple fluids, along with other constraints on whether or not to meet the requirements, a new solution is needed.

The transmission line according to this invention is based on the transmission line disclosed in the prior art US 7 798 234 B2, which has an integrated steel tube / pipe umbilicals system and is modified for the needs of the material removal technology that results from plasma processes devices.

N E 8671 Υ1

The essence of the technical solution

The object of the present invention is a hybrid transmission line (hereinafter referred to as transmission line) for a plasma device which eliminates the aforementioned drawbacks of the prior art. The transmission line according to the technical solution ensures all requirements for the transmission of electric power, hydraulic fluids, as well as for the transmission of data communication between the surface of the plasma device unposed at a defined depth, while having the required carrying capacity (30-401).

According to a preferred embodiment, the external diameter of the transmission line does not exceed 73 mm

The transmission line according to the technical solution is intended for use in boreholes with a depth of up to 4,500 m.

The advantage of the transmission line according to the prior art is the increased load-carrying capacity of the transmission line. The transmission line according to the technical solution also differs from the state of the art in the number of transmission lines of various fluids, the number and cross-section of electric conductors and data transformations. However, the main difference is the relatively small outside diameter of the transmission line.

In addition, for applications in the oil industry, the design of the transmission line according to the invention is in accordance with all functional requirements for the transmission line.

Also, the transmission line of the engineering solution is also suitable for use in boreholes at an angle

This technical solution integrates, with regard to operational depth, into one transmission line:

• one, two or three independent, direct-current power lines for power supply:

° Plasma equipment, ° Plasma medium generator, ° Control and communication technology, • One to three different hydraulic fluids:

° Cooling and irrigation media with a working pressure of 450 Bar, ° Plasma-forming medium with a working pressure of 450 Bar, • Data transfer using FO (Fiber Optic) data communication, single mode fiber (SM) used.

Because of the well environment, the basic limiting parameter is the inner diameter of the pump pipe, resp. outer diameter of transmission line, which can be max 2 7/8 "(73 mm).

The following aspects were considered when designing the technical solution:

• Chemical resistance (resistance to H2O2 and crumbled H2O2, to O2, various acids and compounds) • Carrying capacity of the transmission line (transmission line must carry itself + weight of the device + + friction against the walls of the pump + friction from centralization units) • Spatial storage of individual lines • Electrical insulation strength (dielectric strength of insulations) • Produceability (optimization for production and convertibility) • Thermal analysis of transmission lines, heat resistance and cooling • Minimization of hydraulic pressure losses on the transmission line together with optimization of concept and cross section characteristics to achieve the maximum possible length • Integration of the carrier elements into the transmission line design with the following objectives:

• reducing the weight of an existing transmission line while improving its mechanical properties; • reducing the thermal and power losses of existing power lines; • improving the efficiency of an existing hydraulic system; • increasing the mechanical strength of an existing transmission line.

The Hybrid Transmission Line of the Technology Solution has two basic geometric variants: Type A - concentric system,

Type B - systems with three hydraulic lines.

A Type A Hybrid Transmission Line for Plasma Equipment includes in the radial outward direction the following layers / components, respectively:

- an electrically insulated pipe which together forms a hydraulic line,

- additional electrical insulation layer,

- at least one electric cable, which consists in a radial outward direction of:

⁰ electric conductor in the form of braid, ⁰ additional electrical insulation layer,

S K 8671 Υ1 ° of the insulating layer;

- additional electrical insulation layer,

- inner bearing and protective sheath consisting of bearing elements of inner bearing and protective sheath having a mechanical strength of more than 1,0 x 10 ⁶ Nm / kg,

- an outer supporting and protective sheath consisting of supporting elements of the outer supporting and protective sheath having a mechanical strength of more than 1,0 x 10 ⁶ Nm / kg,

- additional electrical insulation layer,

- an outer electrical insulation layer, wherein the transmission line further comprises at least one optical data line (8) and at least one other electrical cable, the support elements of the outer support and protective sheath being twisted in one direction; and the supporting elements of the inner supporting and protective sheath are twisted in the opposite direction, and wherein the additional electrical insulating layer has a dielectric strength of more than 5kV.

The hybrid transmission line according to the type B technical solution for a plasma device comprises the following layers / components in a radial inward direction in the order shown:

- the outer electrical insulation layer (1),

- additional electrical insulation layer (10),

- an outer supporting and protective sheath (2) consisting of supporting elements (24) of the outer supporting and protective sheath having a mechanical strength of more than 1,0 x 10 ⁶ Nm / kg,

- inner bearing and protective sheath (3), composed of supporting elements (22) of inner bearing and protective sheath having a mechanical strength of more than 1,0 x 10 ⁶ Nm / kg,

- additional electrical insulation layer (10),

- an electrical insulating layer (9) which defines an internal space of a circular cross-section transmission line;

where the interior of the transmission line comprises:

- three hydraulic lines (21) consisting of a pipe (5) which is wrapped with an electro-insulating (9) layer;

- at least one electric cable consisting radially outwards of:

° an electrical conductor (4a) in the form of a braid, ° an additional electrical insulation layer (10), ° an electrical insulation layer (9);

- at least one optical data line (8),

- at least one additional electrical cable,

- a filling insulating material (11), which fills the topmost space of the conduit;

wherein the hydraulic lines, electro-hydraulic lines, electric cables, optical data line, and supporting elements (24) of the outer supporting and protective sheath are twisted in one direction; and the supporting elements (22) of the inner supporting and protective sheath are twisted in the opposite direction, and wherein the additional electrical insulating layer (10) has a dielectric strength of more than 5kV.

For both types of lines (A and B), the additional electrical insulation layer must have a dielectric strength of more than 5kV. It may consist of a wound electrical tape (eg paper tape, captive tape, MICA tape (combination of paper and mica), mica tape) with a thickness of 0.1 to 0.35 mm, with 40 - 60% overlap of layers. By folding the layers into a compact, additional electrical insulation layer, which increases the electrical insulation capacity of the electrical insulation layer.

The electrical insulating layer consists of extruded plastic material (thermoplastic, EPE PE, XLPE, etc.). The thickness of the extruded layer depends on the desired value of the working voltage and the desired electrical insulation strength of the electric cable.

For both types of lines (A and B), a minimum of one power level is required for the operation of the plasma device, preferably two (plasma generation power supply, support system power supply) or three (plasma power generation power supply) the media). This means one, two or three separate power lines.

The plasma device is powered by direct current (DC). Therefore, two independent electrical cables representing positive and negative potentials need to be used for each of said power lines, so that two, four or six electrical cables are generally needed. In certain cases, each pair of cables can carry a current ranging from 50A DC to 550A DC and with minimal voltage loss. This reduces the surface tension and the amount of thermal energy generated in the conductors. To achieve this requirement, a relatively large cross-sectional area of the conductors (20 - 1050 mm ² ) is used.

The electrical cable comprises an electrical conductor wrapped with an additional electrical insulation layer and subsequently an electrical insulation layer.

Electrical conductors may be in the form of:

• Braids (for both A and B types), with the braid positioned around another element, e.g. a hydraulic line and separated from it by an additional electrical insulation layer. The braid can be stored in more than one

With K 8671 Υ1 layers on top of each other, according to the required cross-section. The braid may consist of copper fibers.

• Cores (only for type B) - electrical conductor with increased dielectric strength. The core (preferably copper) may be solid or composed of several segments or thin wires wound into a spiral.

According to a preferred embodiment, up to 50% of the copper fibers of the braid may be replaced by steel fibers. The advantage of this arrangement is to increase the load capacity by slightly reducing the weight while maintaining the el. conductivity el. driver. One of the consequences is an increase in the mechanical strength of the tubes on which the sheath is.

El. braided wire is better usable for transmitting voltages with higher frequencies (skinefokt) than el. core conductor.

According to a preferred embodiment (types A and B), one electric cable may be integrated into the inner supporting and protective sheath such that the electric cable is formed by one or more electric conductors (so-called auxiliary electric conductors), these conductors replacing the individual supporting elements of the inner support and a protective sheath so that the minimum required cross-section of the power line is maintained. In this way, up to 50% of all bearing elements can be replaced in this bearing and protective sheath. For a homogeneous surface and the best mechanical strength results, the conductors are copper and flat with a rectangular cross-section.

According to another preferred embodiment, the transmission line (type B) in the interior may comprise two additional electrical cables with a core conductor. These can serve as auxiliary DC power.

The bulk of the weight of the transmission line (type A and B) is made up of power lines. In addition, a substantial part of the weight also comes from the reinforcement protection of the cable (support elements) and the lines for the transmission of different types of hydraulic fluids (hydraulic lines).

The main supporting part of the transmission line according to the technical solution (types A and B) is a supporting and protective jacket, which during operation carries the majority of the weight of the transmission line.

The load-bearing and protective sheath consists of steel load-bearing elements made of high-ductile materials with a mechanical strength of more than 1.0 x 10 ⁶ Nm / kg and preferably surface-treated galvanized coating to withstand the chemical and thermal influences of the surrounding environment.

The bearing and protective sheath consists of two layers:

• the outer bearing and protective sheath is designed only for the protective and supporting function, • the inner bearing and protective sheath, in addition to the protective and bearing function, can also serve for the transmission of electric energy, as already mentioned, by replacing some elements with electric conductors.

The number of elements of the inner and outer protective and support sheaths can vary from 10 to 108 and their number is independent of each other.

In order to increase the electrical and hydraulic insulation against the external environment, the outer supporting and protective sheath is supplemented with an external electrical insulation and waterproofing layer. The outer insulating protective layer provides protection - of the transmission line from contact of the conductive parts of the transmission line with the well walls. At the same time, it ensures protection of the transmission line against the ingress of hydraulic medium from the well bore.

Most of the transmission lines according to the technical solution (types A and B) are filled with a set of hydraulic or electro-hydraulic transmission lines. There is an electrical insulating layer separating the hydraulic part from the power line.

The basis of each of the hydraulic transmission lines consists of a chemically and mechanically highly durable tube, which may be of an alloy of iron (steel), Teflon with steel braid or PTFE (poly tetrafluoroethylene) tubes with steel braid.

The wall thickness of individual hydraulic lines depends on the material used and application (temperature, pressure, flow):

• For use at lower pressures, it is advisable to use plastic tubes (teflon, XLPE, etc.) with metal braid. The wall thickness ranges from 1 mm to 3 mm.

• Metal tubes (inkonel, stainless steel, etc.) with a wall thickness of 1 mm or more are more suitable for higher pressure applications.

The diameters of the individual tubes depend on the type, volume, and pressure of the fluid supplied. To determine them correctly, it is important to define the required pressure drop across the transmission line. In this case, the dimensions of the inner diameter of the tubes range from 8 mm to 50 mm.

The electro-hydraulic line consists of a hydraulic line on which one or more electrical cables with braided conductors are laid axially. An additional electrical insulation layer is provided between the hydraulic line and the electric cable as well as between the individual electric cables.

According to a preferred embodiment (for type A), a further (second) hydraulic line with a smaller diameter is arranged in the axis of the hydraulic line. Its position is defined by position limiters. The diameter of the inner tube may range from 20-75% of the diameter of the outer tube. Such an arrangement allows the use of up to two different hydraulic fluids, the internal hydraulic line being intensively cooled

With K 8671 Υ1 by-pass hydraulic fluid flowing in larger diameter hydraulic lines

The position dispenser is made of plastic (Teflon, polyethylene, expanded polyethylene (EPE), cross-linked polyethylene (XLPE), etc.) It is located around metal pipes (FO protective sleeve, metal pipe). It is made continuously on the outer surface for the entire length of the inner part of the guide.

In the hybrid transmission line according to the technical solution (types A and B), in addition to electrohydraulic (or hydraulic) lines, there is also an optical data transmission line.

Optical data transfer lines contain two or more optical fibers and may be stored:

• in the form of discrete optical fibers integrated in the electrical conductor in the form of braid (type A and B), • as a geometrically self-contained wiring with a gel protective filler between the optical fibers to protect the optical fibers from hydrogen or oxygen damage. which may be, for example, an inconel tube (a steel tube of the austenitic nickel-chromium superalloy family with oxidation-corrosion resistance in extreme pressures and heat environments) or a stainless steel tube, etc.). This whole is still wrapped in a plastic protective layer, which can be e.g. of Teflon, XLPE, various polymers and the like, defined within the desired thermal requirements, desired solution, and the like.

The geometrically separate optical data line can be stored in the hydraulic line via a position limiter (type A) or inside the transmission line (type B).

For the transmission line length over 600 m, it is preferable to use single mode optical fibers. Two or more single-mode optical fibers are required for data transmission.

Separately, a single optical fiber can integrate into the braid of some of the electrical conductors to check the mechanical properties in real time.

The space between the individual lines in the same space of the Type B hybrid transmission line is filled with a plastic electrical insulating material which allows (moving) the individual lines together.

In order to reduce the mechanical stress of the Type A transmission line, the supporting elements of the inner support and protective sheath are twisted in one direction and the supporting elements of the outer support and protective sheath are twisted in the opposite direction. at an angle of 5 ° - 10 ° in a clockwise direction, preferably at an angle of 7 °. The supporting elements of the outer supporting and protective sheath are twisted at an angle of 5 ° -10 ° counter-clockwise, preferably at an angle of 7 °.

In order to reduce the mechanical stress on the internal lines of the Type B transmission line, the hydraulic lines, the electrohydraulic lines, the electric cables, the optical data line and the supporting elements (24) of the outer supporting and protective sheath are twisted in one direction; and the support elements (22) of the inner support and protective sheath are twisted in the opposite direction. According to a preferred embodiment, all the internal power and data lines (hydraulic lines, electro-hydraulic lines, electrical cables and optical data lines) are twisted at an angle of 10 ° - 14 °, preferably at an angle of 11 °, clockwise. The supporting elements of the inner support and protective sheath (including integrated electrical conductors) are twisted at an angle of 5 ° - 10 ° counterclockwise (in the opposite direction to the internal power and data lines), preferably at an angle of 7 °. The support elements of the outer supporting and protective sheath are twisted at an angle of 5 ° to 10 ° in a clockwise direction, preferably at an angle of 7 °.

The transmission line according to the invention is connected on the surface to the infrastructure by means of a connector. At the other end, the transmission line is connected to the plasma device via another connector.

BRIEF DESCRIPTION OF THE DRAWINGS

In FIG. 1 is a cross-sectional view of an " type A " electro-hydraulic hybrid transmission line with one hydraulic line, one power line (a pair of electrical cables), an optical data line, and carrier elements.

In FIG. 2 is a cross-sectional view of an "A-type" electric-hybrid hybrid transmission line with two hydraulic lines, three power lines (three pairs of electrical cables), optical data lines, and carrier elements.

In FIG. 3 is a cross-sectional view of a "Type B" electro-hydraulic hybrid transmission line with one power line (a pair of electrical cables), an optical data line, and carrier elements.

In FIG. 4 is a cross-sectional view of a " type B " hybrid power transmission line with two power lines (two pairs of electrical cables), an optical data line, and carrier elements.

In FIG. 5 is a cross-sectional view of a " type B " type B hybrid electric transmission line with three power lines (three pairs of electrical cables), an optical data line, and carrier elements.

N E 8671 Υ1

In FIG. 6a shows a detail of an electrical transmission cable with a braided wire.

In FIG. 6b shows a detail of an electric transmission cable with a core conductor.

In FIG. 7 shows a detail of the hydraulic line.

In FIG. 8 shows a detail of the electrohydraulic transmission line.

In FIG. 9 shows a detail of the optical data transmission line.

In FIG. 10a) shows a detail of the supporting and protective sheath with supporting elements.

In FIG. 10b) a detail of the load-bearing and protective sheath is shown with supporting elements and with additional electrical conductors replacing some of the load-bearing elements of the inner load-bearing and protective sheath.

In FIG. 11 is a perspective view of an electro-hydraulic hybrid transmission line.

In FIG. 12 shows the transmission line location in the borehole.

EXAMPLES

Example 1

In FIG. 1, a type A hybrid transmission line 19 is shown comprising a zPTFE steel braid tube 5 (not shown) coated with an electrical insulating layer 9. The tube 5 coated with an electrical insulating layer 9 together forms a hydraulic conduit (as shown in FIG. 7). The hydraulic line is radially outwardly wrapped with an additional electrical insulation layer 10 and a subsequent electrical transmission line consisting of two electrical cables separated by an additional electrical insulation layer 10. Each electrical cable consists of the following layers: an electrical conductor 4a in the form of braided, additional electrical insulation layer 10 9th

This unit together creates an electro-hydraulic line. The electro-hydraulic line is further wrapped with an additional electrical insulating layer 10 and further with an inner bearing protective layer 3, which consists of 108 supporting elements 22 of an inner bearing and protective sheath, on which an outer bearing and protective sheath 2 is arranged in radial direction. the supporting elements 24 of the outer supporting and protective sheath. The outer supporting and protective sheath 2 is further wrapped with a supplementary electrical insulation layer 10 and subsequently an external electrical insulation layer 1.

In the axis of the hydraulic line, the optical data line 8 is stored as a separate geometric unit by means of the position limiter 16. The optical data line 8 comprises two optical fibers 13, embedded in a gel protective pad 12 and wrapped with an inkolen protector 14 and subsequently a protective Teflon layer 15.

The additional electrical insulating layer 10 is formed by a 0.35mm thick captive electrical insulating tape with 40% overlap of the layers. The thickness of the additional insulating layer is 0.5 mm. The insulating layer 9 is made of XLPE and has a thickness of 1.3 mm

The inner diameter of the tube 5 is 46 mm, the wall thickness is 2 mm

The braided electric conductor 4a has a cross-sectional area of 240 mm ² .

The overall external cross-section is 4 183.265 mm ² and the diameter of such a hybrid transmission line is 73 mm

Example 2

In FIG. 2 shows a type A hybrid transmission line 19 capable of transmitting one or two different media (2 x 60 rpm) and 3 levels of transmitted power.

The hybrid transmission line 19 comprises an iron alloy tube 5 coated with an electrical insulation layer 9. The tube 5 coated with the electrical insulation layer 9 together form a hydraulic conduit. The hydraulic conduit is radially outwardly wrapped with an additional electrical insulation layer 10 followed by five electrical cables. Each electrical cable is formed by an electrical conductor 4a in the form of a braid on which the supplementary electrical insulation layer 10 and then the electrical insulating layer 9 are laid. The individual cables are separated from each other by the additional electrical insulation layer 10.

This assembly is further wrapped with an additional electrical insulating layer 10 followed by an inner supporting and protective sheath 3, which comprises 18 supporting elements 22 of the inner supporting and protective sheath and 18 additional electric conductors 23 arranged in alternation. An outer load-bearing and protective sheath 2 is disposed on the inner load-bearing sheath 3 and consists of 36 load-bearing elements 24 of the outer load-bearing sheath. The outer supporting and protective sheath 2 is further wrapped with a supplementary electrical insulation layer 10 and subsequently an external electrical insulation layer 1.

The optical data line is integrated into the braided fifth cable (in a radial outward direction) and consists of eight optical fibers 13 spaced at regular intervals in the braid.

In the axis of the hydraulic conduit, by means of the position limiter 16, a further hydraulic conduit of smaller diameter constituted by a PTFE pipe 5a with a steel braiding coated with an electrical insulating layer 9 is arranged. The inner pipe diameter is 25% of the outer pipe diameter.

The additional insulating layer 10 consists of a MICA lecturer-insulating tape of 0.25 mm thickness with 50%

With K 8671 Υ1 overlapping layers. The thickness of the additional insulating layer is 0.5 mm

Electrical insulation layer 9 made ofTPPE (thermo plastic polyethylene / thermopastpolyethylene) is 1.3 mm thick

The tube 5 has an inner diameter of 30 mm and a wall thickness of 1.6 mm

The tube 5a has an inner diameter of 10 mm and a wall thickness of 1.5 mm

The braided electric conductor 4a has a cross-sectional area of 200 mm ² .

The total cross-sectional area of the additional electrical conductors 23 is 160 mm ² .

The overall external cross-section is 4 183.265 mm ² and the diameter of such a hybrid transmission line is 73 mm.

Example 3

In FIG. 3 shows a hybrid transmission line 25 of type B, with triple hydraulic line systems, capable of transmitting one to three media (3 x 60 rpm) and 1 level of transmitted power.

The transmission line comprises, in a radially inward direction, an outer electrical insulating protective layer 1 below which is located an additional electrical insulating layer 10 which is supported on an outer supporting protective cover 2 composed of 36 supporting elements 24 of the outer supporting and protective cover (not shown) underneath an inner supporting and protective sheath 3 comprised of 10 supporting elements 22 of the inner supporting and protective sheath (not shown), which is insulated from the inner space of the circular cross-section transmission line by an additional electrical insulation layer 10 and subsequently by the electrical insulation layer 9.

This inner space is filled with a filler of insulating material 11, in which a triple of hydraulic lines 21 consisting of a pipe 5, which is wrapped with an insulating layer 9 (as shown in Fig. 7), is arranged in parallel.

Two of the hydraulic lines 21 are further wrapped in an additional electrical insulating layer 10, each of which is provided with an electrical cable 7 axially. Each electrical cable comprises an electrical conductor in the form of a braid with a cross-sectional area of 180 mm ² . , on which an insulating layer of 1.3 mm thickness (not shown) is mounted axially. This creates two electro-hydraulic hybrid lines 6 (as shown in Fig. 8).

There is also an optical data line 8 in the interior of the transmission line. The optical data line comprises a 10 mm diameter Teflon layer 15 radially inward, below which is an inconel protector 14 with an outer diameter of 6 mm, a 1 mm wall thickness containing a gel a pad 12 in which two optical fibers 13 (as shown in Fig. 9) are stored.

The hydraulic line 21, the electro-hydraulic line 6 and the optical data line 8 are twisted at 14 ° clockwise, the support elements of the inner support and protective sheath are twisted at an angle of 10 ° counterclockwise and the support elements of the outer support and protective sheath are twisted at 10 ° clockwise.

All three tubes 5 are made of Teflon with steel braiding Two tubes have an internal diameter of 19 mm, a wall thickness of 1.5 mm The third tube has an internal diameter of 23 mm, a wall thickness of 1.5 mm

The additional electrical insulating layer 10 is formed by a mica 0.35 mm thick electrical insulating tape with 40% overlap of the layers. The thickness of the supplementary electrical insulation layer is 0.7 mm. The thickness of the external electrical insulation layer 1 is 2.5 mm.

The total external cross-section is 4 183.265 mm ² and the diameter of such a hybrid transmission line is 73 mm.

Example 4

In FIG. Figure 4 shows an electrohydraulic hybrid transmission line 25 of type B, with triple hydraulic line systems, capable of transmitting one to three media (3 x 60 rpm) and 2 levels of transmitted power.

The transmission line comprises, in a radially inward direction, an outer electrical insulating protective layer 1 below which is located an additional electrical insulating layer 10 which is supported on an outer supporting protective cover 2 composed of 36 supporting elements 24 of the outer supporting and protective cover (not shown) underneath The inner carrier and protective sheath 3 is insulated by an additional electrical insulation layer 10 and subsequently by the electrical insulation layer 9 from the inner space of the circular cross-section transmission line.

This inner space is filled with a filler of insulating material 11, in which three hydraulic lines 21 of equal diameter consisting of a pipe 5, which is wrapped with an insulating layer 9 (as shown in Fig. 7) are arranged in parallel. All three hydraulic lines 21 are further wrapped in an additional electrical insulation layer 10, each of which is axially laid with one electrical cable 7. Each electrical cable 7 comprises an electrical conductor in the form of a braid on which the additional electrical insulation layer is axially supported, on which it is axially mounted. electrical insulation layer (not shown). Thereby, three electro-hydraulic lines 6 (as shown in FIG. 8) are formed.

An optical data line 8 is also located in the interior of the transmission line. The optical data line 8 comprises a radial bottom inlet of a protective Teflon layer 15 beneath which is an inconel protector 14 comprising a gel protective filler 12 containing six optical fibers 13 (as shown).

S K 8671 Υ1 in fig. 9)

The electrohydraulic hybrid lines 6 and the optical data line 8 are twisted at 10 ° clockwise, the carrier elements 22 of the inner supporting protective sheath as well as the additional electrical conductors are twisted at 5 ° counterclockwise and the supporting elements of the outer supporting and protective sheath are twisted at 5 ° clockwise.

All three tubes 5 are made of PTFE with steel braiding The additional electrical insulation layer 10 is formed by a 0.1 mm thick electro-insulating tape with 60% overlap.

Example 5

In FIG. 5 shows a Type B electrohydraulic hybrid transmission line 25, with triple hydraulic line systems, capable of transmitting one to three media (3 x 60 L / nine) and 3 levels of transmitted power.

The transmission line comprises, in a radially inward direction, an outer electrical insulating protective layer 1 below which is located an additional electrical insulating layer 10, which is supported on an outer supporting protective sheath 2 composed of 36 supporting elements 24 of the outer supporting and protective sheath under which the inner supporting and a protective sheath 3 composed of 18 supporting elements 22 of the inner supporting and protective sheath and 18 additional electrical conductors 23 arranged in alternation. The inner support and protective sheath 3 is insulated by an additional electrical insulating layer 10 and then by the electrical insulating layer 9 from the interior of the transmission line of the circular cross-section.

This interior space is filled with a filler of electrical insulating material 11, in which a triple of hydraulic lines 21 of equal diameter consisting of a pipe 5, which is wrapped with an electrical insulating layer 9 (as shown in Fig. 7), is arranged in parallel. All three hydraulic lines are further wrapped in an additional electrical insulating layer 10 on which the electrical cable 7 is axially mounted. Each electrical cable 7 comprises an electrical conductor 4a wound in the form of a braid on which the additional electrical insulating layer 10 is axially mounted. the electrical insulation layer 9 (as shown in FIG. 6a). Thereby three electrohydraulic hybrid lines 6 (as shown in Fig. 8) are formed.

In the interior of the transmission line there are separately two additional electrical cables 7 (as shown in Fig. 6b). Each electric cable 7 comprises an electric conductor 4b in the form of a copper core with a cross-sectional area of 50 mm ² , on which an additional electrical insulation layer 10 and subsequently a 2 mm thick electrical insulation layer 9 are axially mounted.

There is also an optical data line 8 in the interior of the transmission line. The optical data line 8 comprises a radial inward protective teflon layer 15 beneath which is an inconel protector 14 comprising a gel protective filler 12 containing eight optical fibers 13 (such as shown in FIG. 9).

The electro-hydraulic hybrid lines 6, the electrical cables 7 and the optical data line 8 are twisted at 11 ° clockwise, the inner and outer sheath bearing elements 22 are twisted anti-clockwise and the outer and outer sheath bearing elements are twisted. at 7 ° clockwise.

All three tubes 5 are of iron alloy. The additional insulating layer 10 is formed by a 0.25mm thick MIC electrical insulating tape with 50% overlap.

Example 6a

Figure 6a shows a detail of the electrical cable 7. The electrical cable 7 consists of an electrical conductor 4a in the form of a braid on which an additional electrical insulation layer 10 and subsequently the electrical insulation layer 9 are axially mounted.

Example 6b

Figure 6b shows a detail of the electrical cable 7. The electrical cable 7 consists of an electrical conductor 4b in the form of a copper core on which an additional electrical insulation layer 10 and subsequently the electrical insulation layer 9 are axially mounted.

Example 7

In FIG. 7 shows a hydraulic conduit 21 comprising a pipe 5 coated with an electrical insulation layer

9th

Example 8

In FIG. 8 shows an electrohydraulic conduit 6. This conduit comprises a pipe 5 coated with an electrical insulating layer 9. The pipe 5 with the electrical insulating layer 9 represents a hydraulic conduit. The hydraulic line is further wrapped with an additional electrical insulating layer 10 on which the electric cable is mounted axially. The electric cable in the radial outward direction consists of an electric conductor 4 in the form of a braid, an additional electrical insulation layer 10 and an electrical insulation layer 9.

N E 8671 Υ1

Example 9

Figure 9 shows the optical data line 8. The optical data line 8 comprises eight optical fibers 13, which are embedded in a gel protective pad 12 and encased in a stainless steel guard 14 with an inner diameter of 4 mm, a wall thickness of 0.5 mm. in a Teflon layer 15 with a wall thickness of 2.5 mm.

Example 10a

Fig. 10a shows the six top layers of both the Type A and Type B hybrid transmission lines. In the radial direction, an electrical insulating layer 9 is provided, on which an additional electrical insulating layer 10 is provided, on which the supporting and protective sheath is arranged. The inner supporting and protective sheath 3 consists of 36 supporting elements 22 of the inner supporting and protective sheath, arranged closely, parallel to the circumference of the conduit. The outer supporting and protective sheath 2 consists of 36 supporting elements 24 of the outer supporting and protective sheath, arranged closely, parallel to the circumference of the conduit. A supplementary electrical insulation layer 10 and consequently an outer electrical insulation layer 1 are provided on the protective sheath.

Example 10b

Figure 10b shows the six top layers of both the Type A and B hybrid transmission lines, similar to Figure 10a, except that each second support element 22 of the inner support and protective sheath is replaced by an additional electrical conductor 23.

Example 11

Figure 11 shows a cross-section of a Type B hybrid transmission line 25 in a perspective view showing the twisting of the individual layers (conductors).

Example 12

12 shows a hybrid transmission line 19 in a borehole. The hybrid transmission line 19 is housed in the pump tube 18 and connects the above-ground infrastructure 17 with the plasma device 20 housed in the well.

Industrial usability

The fluid and power transmission equipment in the borehole according to the present invention will be used in the oil industry in the execution of decommissioning operations and / or in the drilling industry, e.g. in the field of geothermal wells.

N E 8671 Υ1

List of reference marks:

- external electrical insulation layer

- outer load-bearing and protective jacket

- inner bearing and protective jacket

4a - electrical conductor in braided form

4b- an electric conductor in the form of a solid core

- pipe

5a - second pipe

- electrohydraulic line

- electric cable

- optical data lines

- electrical insulation layer

- additional electrical insulation layer

- electrically insulating filling material

- gel protective filler

- optical fiber

- metal conduit

- protectiveplastic coating

- positioning device

- overhead infrastructure

- pump

Type A hybrid transmission line

- plasma equipment

- hydraulic lines

- supporting element of inner bearing and protective sheath

- additional electrical conductor

- supporting element of the outer supporting and protective sheath

- Type B hybrid transmission lines

Claims (20)

PROTECTION REQUIREMENTS A type A hybrid transmission line (19) for a plasma device, characterized in that it comprises in the radial outward direction the following layers / components, respectively: a tube (5) wrapped with an electrical insulation layer (9) which together form a hydraulic a conduit (21), an additional electrical insulation layer (10), at least one electrical cable (7), which consists in a radial outward direction of: an electrical conductor (4a) in the form of a braid, additional electrical insulation layer (10), electrical insulation layer (9); additional insulating layer (10), inner bearing and protective sheath (3) composed of supporting elements (22) of inner bearing and protective sheath with a mechanical strength of more than 1.0 x 10 ⁶ Nm / kg, outer bearing and protective sheath (2) composed of supporting outer support and protective sheath elements (24) with a mechanical strength of more than 1.0 x 10 ⁶ Nm / kg, additional electrical insulation layer (10), outer electrical insulation layer (1); wherein the transmission line further comprises at least one optical data line (8) and at least one other electrical cable, the support elements (22) of the inner support and protective sheath being twisted in one direction; and the supporting elements (24) of the outer supporting and protective sheath are twisted in the opposite direction and wherein the additional electrical insulating layer (10) has a dielectric strength of more than 5 kV. Transmission line according to claim 1, characterized in that the optical data line (8) consists of at least two optical fibers (13) integrated into the braided electric conductor (4a). Transmission line according to claim 1, characterized in that the optical data line (8) comprises at least two optical fibers (13), embedded in a gel protective filler (12) and wrapped with a metal guard (14) and subsequently with a protective plastic layer (15). wherein the optical data line (8) is stored in the axis of the hydraulic line by the position delimiter (16). Transmission line according to claim 2, characterized in that, in the axis of the hydraulic line (21), by means of position limiters (16), a further hydraulic line (21) consisting of a second tube (5a) wrapped with an electrical insulation layer (9) is arranged, the diameter of the second tube (5a) is 20% - 75% of the diameter of the tube (5). Transmission line according to any one of the preceding claims, characterized in that the additional electrical cable is in the form of an additional electrical conductor (23) which replaces 1 support element (22) to 50% of the support elements (22) of the inner support and protective sheath (22). 3). Transmission line according to any one of claims 1 to 4, characterized in that the further electrical cable is axially disposed on the first electrical cable, separated from it by an additional electrical insulation layer (10) and extending radially outwardly from: the electrical conductor (4a) in the form of the braid, the additional electrical insulation layer (10) and the electrical insulation layer (9). Transmission line according to Claim 5 or 6, characterized in that it comprises a second pair of electric cables arranged axially on the first electric cable, wherein all axially arranged electric cables are separated from each other by an additional electrical insulation layer (10), and wherein all axially arranged electric cables the cables consist radially outwardly of: an electrical conductor (4a) in the form of a braid, an additional electrical insulation layer (10) and an electrical insulation layer (9). A transmission line according to claim 7, characterized in that it comprises a third pair of electrical cables arranged in the same way as the second pair of electrical cables. Transmission line according to any one of the preceding claims, characterized in that the elements of the inner support and protective sheath are twisted at 5 ° - 10 ° in a clockwise direction, preferably at an angle of 7 °; and the supporting elements of the outer supporting and protective sheath are twisted at an angle of 5 ° -10 ° counterclockwise, preferably at an angle of 7 °. A type B hybrid transmission line (25) for a plasma device, characterized in that it comprises the following layers / components in a radial inward direction, respectively: an outer insulating layer (1), an additional insulating layer (10), an outer carrier and a protective sheath (2) composed of supporting elements (24) of the outer supporting and protective sheath having a mechanical strength of more than 1.0 x 10 ⁶ Nm / kg, the inner supporting and protective sheath (3) comprised of the supporting elements (22) an inner bearing and protective sheath having a mechanical strength of more than 1.0 x 10 ⁶ Nm / kg, an additional electrical insulation layer (10), an electrical insulation layer (9) which defines an internal space of a circular cross-section transmission line; wherein the inner space of the transmission line comprises: a triple of hydraulic lines (21), each line consisting of a tube (5) that is wrapped with an electrical insulation (9) layer; at least one electrical cable (7) mounted on the hydraulic line (21) and separated therefrom by an additional electrical insulation layer (10), wherein the electrical cable (7) consists radially outwardly of: an electrical conductor (4a) in the form of braided, additional electrical insulation a layer (10), an electrical insulation layer (9); at least one optical data line (8), at least one other electrical cable, a filler of electrical insulating material (11) that fills the rest of the internal space of the line; wherein the hydraulic lines, electro-hydraulic lines, electric cables, optical data line and supporting elements (24) of the outer supporting and protective sheath are twisted in one direction; and the support elements (22) of the inner support and protective sheath are twisted in the opposite direction and wherein the additional electrical insulating layer (10) has a dielectric strength of more than 5 kV. N E 8671 Υ1 The transmission line according to claim 10, characterized in that the optical data line (8) consists of at least two optical fibers (13) integrated into the braided electric conductor (4a). Transmission line according to claim 10, characterized in that the optical data line (8) comprises at least two optical fibers (13) embedded in a gel protective filler (12) and wrapped with a metal guard (14) and subsequently a protective plastic layer, and wherein the optical data line (8) is stored separately in the interior of the transmission line. A transmission line according to any one of claims 10 to 12, characterized in that the additional electrical cable is in the form of an additional electrical conductor (23) which replaces 1 support element (22) to 50% of the support elements (22) of the inner support and protective device. jacket (3). A transmission line according to any one of claims 10 to 12, characterized in that another electric cable is axially mounted on the hydraulic line (21), separated from it by an additional electrical insulation layer (10) and consists in a radial outward direction of: an electrical conductor (4a) in the form of a braided, supplementary electrical insulation layer (10) and an electrical insulation layer (9). A transmission line according to any one of claims 10 to 14, characterized in that it comprises a second pair of electrical cables housed in the interior of the transmission line, wherein each of the pair of electrical cables consists in a radial outward direction of: an electrical conductor (4b) ) in the form of a core, an additional electrical insulation layer (10) and an electrical insulation layer (9). Transmission line according to any one of claims 10 to 15, characterized in that the hydraulic lines, the electrohydraulic lines, the electrical lines and the optical data line are twisted clockwise at an angle of 10 ° to 14 °, preferably at an angle of 11 °; the support elements (22) of the inner support and protective sheath are twisted counterclockwise at an angle of 5 ° to 10 °, preferably at an angle of 7 °; and the support elements (24) of the outer support and protective sheath are twisted clockwise at an angle of 5 ° to 10 °, preferably at an angle of 7 °. A transmission line according to any one of claims 1, 4 or 10, characterized in that the pipe (5) and the second pipe (5a) are each independently selected from the group consisting of: iron alloys, teflon with steel braid or PTFE with steel braided Transmission line according to any one of the preceding claims, characterized in that the additional electrical insulating layer (10) is a tape of 0.1 mm - 0.35 mm thickness, wound with 40 - 60% overlap Transmission line according to any one of the preceding claims, characterized in that the number of elements of the inner (22) bearing and protective sheath is 10 - 108. Transmission line according to claim 1 or 10, characterized in that the electric conductor (4a) in the form of a braid consists of 100% to 50% copper fibers and 0% to 50% steel fibers.