CN201963231U - Subsea mud suction system for realizing riser-free mud recovery drilling - Google Patents
Subsea mud suction system for realizing riser-free mud recovery drilling Download PDFInfo
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- CN201963231U CN201963231U CN201020676362XU CN201020676362U CN201963231U CN 201963231 U CN201963231 U CN 201963231U CN 201020676362X U CN201020676362X U CN 201020676362XU CN 201020676362 U CN201020676362 U CN 201020676362U CN 201963231 U CN201963231 U CN 201963231U
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Abstract
The utility model relates to a subsea mud suction system for realizing a riser-free mud recovery drilling. The subsea mud suction system for realizing the riser-free mud recovery drilling is characterized in that when used in shallow water, the subsea mud suction system comprises an outer shell, wherein the lower end of the outer shell is connected with a subsea wellhead through a hydraulic connector, side outlets extending outwards are formed on the side wall at the lower part of the outer shell, and drilling fluid pressure monitoring systems are arranged on the side walls of the side outlets; the side outlets are connected with the inlet of a subsea mud lift pump through a subsea drilling fluid delivery pipeline, and the outlet of the subsea mud lift pump is connected with a drilling fluid processing device on an offshore drilling ship through a drilling fluid return pipeline; a through hole for allowing the lower end of a drilling rod used on the offshore drilling ship to pass through is arranged on the outer shell; when the system is used in deep water, the upper part of the outer shell of the subsea mud suction system is a two-stage funnel section, and the lower part of the outer shell of the subsea mud suction system is a straight tube section respectively; and a rotary assembly is arranged in the outer shell in a sealed manner, the lower part and the upper part of the outer shell are separated through the rotary assembly, and subsea blow-out preventers are arranged between the lower part of the outer shell and the subsea wellhead.
Description
Technical field
The utility model relates to a kind of deepwater drilling equipment, particularly about a kind of seabed mud intake system that realizes not having marine riser mud veclamation drilling well.
Background technology
With the minimizing of landing field and shallow sea oil and gas reserves and the increase of exploitation difficulty thereof, deepwater regions becomes the focus of world's oil-gas exploration gradually.And traditional marine drilling technology is difficult to satisfy the needs of deepwater drilling owing to be subjected to the restriction of factors such as the depth of water, stratum.
In conventional deepwater drilling, drill ship is connected by marine riser with well head.But when the depth of water surpasses 500 meters, adopt traditional marine riser boring method will have many problems that are difficult to overcome: 1) during deepwater drilling, need the major diameter marine riser to connect drill ship and well head, need more mud to fill annular space between marine riser and the drilling rod, this just needs the drill ship carrying marine riser and the mud of higher level.2) in the deepwater drilling, the large scale marine riser also will bear complicated external environment condition load except that bearing bigger self load, need to use the auxiliary marine riser operation of more expensive buoyancy and compensation arrangement, increases the marine riser cost.3) deepwater drilling has than length with marine riser, reclaims difficulty in bad weather, increases operating risk.4) in the deepwater drilling, pressure window stenostomia between formation fracture pressure and the pore pressure, the mud adjustable extent is little, and more casing strings are kept hole stability under needing.5) some regional geological condition requires to use expensive water base or synthetic mud when the probing top hole, if the drilling fluid that bore hole annulus is returned directly is discharged into the seabed, not only wastes drilling fluid but also contaminated environment.6) in some zone, environmental legislation does not allow the drilling fluid that bore hole annulus is returned is discharged into the seabed.Therefore, need a kind of new drilling rig or method, can realize that the mud veclamation of not using marine riser bore hole annulus can be returned again recycles to the sea drill ship, promptly satisfy the purpose of no marine riser mud veclamation drilling well.
At present, mainly exist following method or device to realize not having marine riser abroad or mud veclamation drilling well: patent US.6745851 has proposed a kind of method and system that reclaims and handle the probing top hole with mud.But this method and system just is used for the top hole probing, the subsea blow out preventer group promptly is installed and used the drilling fluid in the time of can only reclaiming the probing top hole before connecting marine riser between drill ship and the well head.Patent NO.20035172 has introduced a kind of method of removing and filtering the top hole drilling fluid, can only reclaim top hole equally and return drilling fluid.Patent US.4149603 has proposed a kind of underwater drilling system and method, and its main thought is: do not re-use traditional ocean marine riser, the mud pit device is installed at subsea blow out preventer group top.Use the mud that returns in the seabed mud lifting pump suction mud pit, turn back to the sea by return line.But this method and system is to use after the subsea blow out preventer group is installed, can not mortgage originator well drilling mud.Patent EP.0290250 has proposed a kind of deepwater drilling method and apparatus.Its main thought is: utilize seabed centrifugal pump and return line that drilling mud is turned back to the sea.But this system uses after the subsea blow out preventer group is installed, the drilling fluid in the time of can not the probing of mortgage originator well.The mud veclamation technology of mentioning in the above-mentioned various patent all can not be applied in whole borehole segments drilling operations, and except that patent NO.20035172, the technology of mentioning in all the other patents is useless to be used or embodiment in actual applications.
Summary of the invention
At the problems referred to above, the purpose of this utility model provides a kind of simple to operate, and can realize that whole borehole segments do not have the seabed mud suction apparatus of marine riser mud veclamation drilling well, returns the drilling well drilling fluid.
For achieving the above object, the utility model is taked following technical scheme: a kind of seabed mud intake system that realizes not having marine riser mud veclamation drilling well, it is characterized in that: it comprises seabed mud suction apparatus, described seabed mud suction apparatus comprises a shell body, it is oral that described shell body lower end connects submarine well, stretching out on the described shell body lower sides is provided with side exit, and the sidewall of described side exit is provided with the drilling liquid pressure monitoring system; Described side exit is by the inlet of ocean floor drilling liquid feed-line connection seabed mud lifting pump, and described seabed mud lifting delivery side of pump is by the drilling fluid treatment facility on the drill ship of drilling fluid return line connection sea; Be provided with the through hole that the drilling rod lower end that is used on the drill ship of sea is passed in the described shell body.
The top of the described shell body of described seabed mud suction apparatus is the two-stage funnel section, and the bottom is a direct tube section; Sealing is provided with the rotation assembly in the described shell body, and described rotation assembly is with described shell body bottom and described shell body upper isolation, and described shell body bottom connects subsea blow out preventer group upper end, and it is oral that described subsea blow out preventer group lower end connects submarine well.
Described rotation assembly comprises outer cylinder body, inner barrel and cooling fluid conveying device; Described outer cylinder body is secondary funnel section and the bottom direct tube section that the infundibulate sealing is arranged on described shell body; The bearing that described inner barrel is provided with by some intervals rotates and is arranged in the outer cylinder body, and the upper and lower end between described inner barrel and the outer cylinder body is respectively arranged with bearing positioning device, and two described bearing positioning device inboards are respectively arranged with associated sealing arrangement for bearings; The upper and lower end of described inner barrel is symmetrically arranged with the solid plate of glue core, and the solid plate of described two glue cores is provided with the packing unit that is used to seal described drilling rod; Described cooling fluid conveying device comprises the annular channel that is separately positioned on the described associated sealing arrangement for bearings of upper and lower end, and cooling fluid is injected runner, cooling fluid delivery channel, and the parallel vertical runner of two on the described outer cylinder body that is oppositely arranged on; Described cooling fluid is injected the described annular channel that runner one end is communicated with top, and the other end passes described outer cylinder body and is connected liquid coolant sources with shell body; Described cooling fluid delivery channel is arranged on described cooling fluid and injects on the described outer cylinder body of runner below, and passes described shell body; Wherein the upper/lower terminal of a described vertical runner is communicated with the described annular channel of described cooling fluid delivery channel and bottom respectively, and the upper/lower terminal of another described vertical runner is communicated with the described annular channel on top and the described annular channel of bottom respectively.
Described seabed mud suction apparatus is provided with hydraulic locking mechanism, described hydraulic locking mechanism comprises in the cylinder body that is arranged on the shell body outside, the described cylinder body and is provided with the packed-piston bar, the sealed end of described packed-piston bar connects hydraulic system, tailpiece of the piston rod is used to be located in described shell body and the outer cylinder body, and is provided with the recovery spring between described tailpiece of the piston rod and the described cylinder body.
The described shell body of described seabed mud suction apparatus is provided with current by pass, and described current by pass is communicated with between described shell body and the described outer cylinder body, is provided with spring in the described current by pass, and described spring is provided with spool near an end of described outer cylinder body.
Associated sealing arrangement for bearings and bearing positioning device between described inner barrel and the described outer cylinder body are provided with grease channel; Be provided with the lubrication pressure bascule between the described bearing, described lubrication pressure bascule comprises dummy piston, described dummy piston is provided with balance chamber, be provided with the compression spring in the described balance chamber, described shell body and outer cylinder body are provided with a runner that is communicated with described balance chamber and the outside seawater of described shell body.
On the sidewall of the described shell body bottom of described seabed mud suction apparatus, the described side exit that is provided with that stretches out has two, is provided with the drilling liquid pressure monitoring system on the sidewall of two described side exits; On the outer wall of described shell body, the top of two described side exits is symmetrically arranged with two seabed supports, is provided with seabed illumination and video recording equipment on each described seabed support.
The utility model is owing to take above technical scheme, it has the following advantages: 1, can place the rotation assembly in the shell body of the present utility model, also can not place the rotation assembly, therefore, have two kinds of working methods, can realize the recovery of whole borehole segments probings, reduce drilling cost, reduce environment pollution with drilling fluid.2, the utility model is owing to be provided with two side exits, two drilling liquid pressure monitoring systems, therefore, can make things convenient for the drilling fluid feed-line between ROV connection shell body and the seabed mud lifting pump, or when wherein a side exit broke down, another can use.3, therefore the utility model, can be used to discharge the seawater that is retained in when putting shell body under the rotation assembly in the shell body because shell body is provided with earial drainage and guiding device.4, the utility model is because the sidewall of side exit is provided with the drilling liquid pressure monitoring system that pressure difference transmitter is formed, therefore, can measure the difference between interior drilling fluid of shell body and external sea hydrostatic pressure, regulate the rotating speed of seabed mud lifting pump, drilling fluid liquid level in the control shell body realizes double-gradient well drilling.5, be provided with static seal between outer cylinder body of the present utility model and the shell body, therefore, not only can prevent the shell body rotation, but also can prevent that penetration of sea water from advancing in the shell body, and prevent that the drilling fluid in the shell body from leaking.The utility model not only can realize not having the purpose of marine riser mud veclamation drilling well, but also can realize double-gradient well drilling, drilling cost is low, can keep hole stability, reduce the shallow-layer risk, keep bottom pressure between formation pore pressure and fracture pressure, therefore, can be widely used in deepwater drilling, even in the super deepwater drilling process.
Description of drawings
Fig. 1 is the structural representation that the utility model is installed the preceding probing of subsea blow out preventer group well
Fig. 2 is the structural representation of probing well after the utility model installation subsea blow out preventer group
Fig. 3 is the outside schematic diagram of the utility model seabed mud suction apparatus
Fig. 4 is the closed seabed of a utility model mud suction apparatus cross-sectional schematic
Fig. 5 is the half section schematic diagram of Fig. 4 left-handed 90
The specific embodiment
Below in conjunction with drawings and Examples the utility model is described in detail.
As shown in Figure 1, the utility model system comprises seabed mud suction apparatus 1, seabed mud suction apparatus 1 comprises the shell body 2 of a hollow, shell body 2 lower ends are by hydraulic connector (or other existing linkages, not shown) connection submarine well oral 3, stretch out on the lower sides of shell body 2 and be symmetrically arranged with two side exits 4 that have a controlled valve, be respectively arranged with drilling liquid pressure monitoring system 5 on the sidewall of two sides outlet 4, drilling liquid pressure monitoring system 5 is used to monitor the drilling liquid pressure in the seabed mud suction apparatus 1.Wherein a side exit 4 and the drilling liquid pressure monitoring system 5 corresponding with it are duty, and another side outlet 4 and the drilling liquid pressure monitoring system 5 corresponding with it are stand-by state; In running order side exit 4 is by the inlet of ocean floor drilling liquid feed-line 6 connection seabed mud lifting pumps 7, the drilling fluid treatment facility 10 that the outlet of seabed mud lifting pump 7 connects on the sea drill ships 9 by drilling fluid return line 8; Be provided with the through hole that drilling rod 11 lower ends that are used on the sea drill ship 9 are passed in the shell body 2, drilling rod 11 lower end are arranged in the well 12, and drilling rod is provided with drill bit 13.
As Fig. 2, shown in Figure 3, the top of the shell body 2 of seabed mud suction apparatus 1 is two-stage funnel section I, II, and the bottom is direct tube section III; Sealing is provided with the rotation assembly in the shell body 2, and the rotation assembly is with the bottom of shell body 2 and the upper isolation of shell body 2, and shell body 2 bottoms connect the upper end of subsea blow out preventer group 14, and the lower end of subsea blow out preventer group 14 connects submarine well oral 3.
It is closed seabed mud suction apparatus that the rotation assembly is set in the shell body 2 of seabed mud suction apparatus 1, and it is open seabed mud suction apparatus that the rotation assembly is not set.
As shown in Figure 3, on the direct tube section III outer wall of shell body 2 bottoms of seabed mud suction apparatus 1, the top of side exit 4, side exit 4 is symmetrically arranged with two seabed supports 15 at interval, is provided with seabed illumination and video recording equipment 16 on each seabed support 15.In the mud suction apparatus of open seabed, seabed illumination and video recording equipment 16 are used to monitor the liquid level of drilling fluid in the shell body 2; In the mud suction apparatus of closed seabed, seabed illumination and video recording equipment 16 are used for aided drilling, and auxiliary rotation assembly is put into shell body 2.The outer wall of the second level funnel section II of shell body 2 circumferentially is arranged at intervals with some hydraulic lockings mechanism 17, can arrange 4～6 hydraulic locking mechanisms 17 according to duty.
As shown in Figure 4, be provided with the rotation assembly in the shell body 2 of seabed mud suction apparatus 1, be closed seabed mud suction apparatus, the rotation assembly comprises outer cylinder body 18, inner barrel 19, cooling fluid conveying device and lubrication pressure bascule.
The cooling fluid conveying device comprises the annular channel 25 that is separately positioned on the upper and lower two bearings sealing device 22, the cooling fluid that is located on outer cylinder body 18 and the shell body 2 is injected runner 26 and cooling fluid delivery channel 27, and the parallel vertical runner 28 of two on the outer cylinder body 18 that is oppositely arranged on.Cooling fluid is injected the annular channel 25 on the end connection top of runner 26, and the other end passes outer cylinder body 18 and is connected liquid coolant sources with shell body 2; Cooling fluid delivery channel 27 is arranged on cooling fluid and injects runner 26 belows, passes shell body 2; Wherein the upper/lower terminal of a vertical runner 28 is communicated with the annular channel 25 of cooling fluid delivery channel 27 and bottom respectively, and the upper/lower terminal of another vertical runner 28 is communicated with the annular channel 25 of upper and lower respectively.Cooling fluid flows into lower annular runners 25 downwards by vertical runner 28 after injecting runner 26 injection upper, annular runners 25 by cooling fluid, upwards flows into cooling fluid delivery channel 27 backs by another vertical runner 25 at last and discharges.
The second level funnel section II of shell body 2 and the junction of bottom direct tube section III circumferentially are arranged at intervals with some earial drainages and guiding device 33, can arrange 2～4 according to operating mode.Earial drainage and guiding device 33 comprise the discharge orifice that is arranged on shell body 2, and discharge orifice is communicated with between shell body and the outer cylinder body, is provided with spring in the discharge orifice, and spring is provided with spool near an end of outer cylinder body.Original state lower spring extruding spool sealing discharge orifice, when transferring the rotation assembly in shell body 2, internal pressure promotes spool to the external compression spring, and the conducting discharge orifice is so that discharge the seawater that is retained in when putting shell body 2 under the rotation assembly in the shell body 2.
As Fig. 3, shown in Figure 5, the hydraulic locking mechanism 17 that is provided with on the outer wall of the second level funnel section II of shell body 2 comprises the cylinder body 34 that is arranged on shell body 2 outsides, be provided with packed-piston bar 35 in the cylinder body 34, the sealed end of packed-piston bar 35 connects the hydraulic system (not shown), tailpiece of the piston rod is used to be located in shell body 2 and the outer cylinder body 18, and is provided with recovery spring 36 between tailpiece of the piston rod and the cylinder body 34.Original state lower seal piston rod 35 is in cylinder body 34 and the shell body 2 fully; After the rotation assembly is put into, in the locking eyelet that hydraulic coupling driving packed-piston bar 35 stretches on the outer cylinder body 18, locking rotation assembly.
In the foregoing description, the bearing 20 that is provided with between outer cylinder body 18 and the inner barrel 19 comprises radially alignment bearing and thrust bearing.Each bearing 20 carries out axial restraint by bearing positioning device 21, and bearing positioning device 21 is fixed on the outer cylinder body 18.Be provided with static seal between bearing positioning device 21 and the associated sealing arrangement for bearings 22.
In the foregoing description, be provided with rotary dynamic seal spare between upper and lower associated sealing arrangement for bearings 22 and the inner barrel 19, be provided with static seal between the both sides of upper and lower annular channel 25 and the outer cylinder body 18.
In the foregoing description, when the shell body 2 of closed seabed mud suction apparatus uses as open seabed mud mud suction apparatus, need the sealing cooling fluid to inject runner 26 and cooling fluid delivery channel 27, the discharge orifice of earial drainage and guiding device 33, the runner 31 of lubrication pressure thrust balancing device.
The utility model method comprises two kinds of working methods, the drilling fluid when being used to reclaim different borehole segments probing.
Mode one: as Fig. 1, shown in Figure 3, the drilling fluid that the top layer well is returned turns back to sea drill ship 9 when recycling, do not need subsea blow out preventer group 14 is installed, adopt open seabed mud suction apparatus to reclaim well and return drilling fluid, it specifically may further comprise the steps;
1) drill ship 9 dynamic positionings.
2) utilize the cable (not shown) that open seabed mud suction apparatus is transferred on the submarine well oral 3 by the moon pool on the drill ship 9, be connected, use seabed support 15 fixing simultaneously by hydraulic connector (not shown) and submarine well oral 3.
3) by ROV (Remote Operated Vehicle, underwater robot) with open seabed mud suction apparatus wherein a side exit 4 be connected with the inlet of seabed mud lifting pump 7 by ocean floor drilling liquid feed-line 6, drilling fluid return line 8 is passed through in the outlet of seabed mud lifting pump 7 is connected with drilling fluid treatment facility 10 on the drill ship 9.
4) drilling rod 11 is transferred to off-shore boring's well 12 from drill ship 8, and drilling fluid sprays well 12 by drill bit 13 under drilling rod 11 hollow flow, and drilling fluid and mud are along returning to shell body 2 on the well 12.
5) under the swabbing action of seabed mud lifting pump 7, drilling fluid is through side exit 4 and ocean floor drilling liquid feed-line 6, flow into seabed mud lifting pump 7, turn back to sea drill ship 9 by drilling fluid return line 8 then, recycling after sea drilling fluid treatment facility 10 is handled.
6) in the drilling fluid return course, by the drilling fluid liquid level in seabed illumination and the video recording equipment 16 monitoring shell bodies 2, drilling liquid pressure in the drilling liquid pressure monitoring system 5 monitoring shell bodies 2 and the difference between same horizontal plane sea water static pressure power, pressure difference signal is transferred to the converter plant (not shown) of drill-well operation personnel or seabed mud lifting pump 7 by the holding wire (not shown), regulate the rotating speed of seabed mud lifting pump 7, make drilling liquid pressure equal sea water static pressure power, realize double-gradient well drilling.
Mode two: as Fig. 2～shown in Figure 5, the deep layer well is returned drilling fluid turn back to sea drill ship 9 when recycling, need subsea blow out preventer group 14 is installed, adopt closed seabed mud suction apparatus to reclaim well and return drilling fluid, it specifically may further comprise the steps;
1) carries out dynamic positioning by drill ship 9;
2) subsea blow out preventer group 14 is installed on the submarine well oral 3;
3) utilize the cable (not shown) to transfer shell body 2, be connected by the upper end of hydraulic connector (not shown) with subsea blow out preventer group 14;
4) will rotate assembly and put into for 11 times in the shell body 2 by drilling rod, the upper end of sealing shell body 2, and by 17 lockings of hydraulic locking mechanism;
5) by ROV a wherein side exit 4 of shell body 10 is connected with the mouth of seabed mud lifting pump 7 by ocean floor drilling liquid feed-line 6; The outlet of seabed mud lifting pump 7 is connected drilling fluid return line 8, and the other end of drilling fluid return line 8 connects drilling fluid treatment facility 10 on the drill ship 8 of sea;
6) drilling fluid sprays well 12 by drill bit 13 under drilling rod 11 hollow flow, and drilling fluid and mud are along returning on the well 12 to shell body 2;
7) under the swabbing action of seabed mud lifting pump 7, drilling fluid flows into seabed mud lifting pump 7 through the side exit 4 and the ocean floor drilling liquid feed-line 6 of shell body 10, then turned back in the drilling fluid treatment facility 10 on the sea drill ship 8 by lifting by drilling fluid return line 8, recycling after treatment;
8) in the drilling fluid return course, by the drilling fluid liquid level in seabed illumination and the video recording equipment 16 monitoring shell bodies 2, drilling liquid pressure in the drilling liquid pressure monitoring system 4 monitoring shell bodies 10 and the difference between same horizontal plane sea water static pressure power, the pressure differential signal is flowed to the converter plant (not shown) of drill-well operation personnel or seabed mud lifting pump 7 by the seabed holding wire, the rotating speed of regulating seabed mud lifting pump 7 makes drilling liquid pressure equal same horizontal plane sea water static pressure power, realizes double-gradient well drilling;
9) when needs setting of casing and other operation, reclaim the rotation assembly, after setting of casing finishes, transfer the rotation assembly once more, continue drilling well.
The various embodiments described above only are used to illustrate the utility model; wherein the structure of each parts, connected mode etc. all can change to some extent; every equivalents of carrying out on the basis of technical solutions of the utility model and improvement all should not got rid of outside protection domain of the present utility model.
Claims (9)
1. seabed mud intake system that realizes not having marine riser mud veclamation drilling well, it is characterized in that: it comprises seabed mud suction apparatus, described seabed mud suction apparatus comprises a shell body, it is oral that described shell body lower end connects submarine well, stretching out on the described shell body lower sides is provided with side exit, and the sidewall of described side exit is provided with the drilling liquid pressure monitoring system; Described side exit is by the inlet of ocean floor drilling liquid feed-line connection seabed mud lifting pump, and described seabed mud lifting delivery side of pump is by the drilling fluid treatment facility on the drill ship of drilling fluid return line connection sea; Be provided with the through hole that the drilling rod lower end that is used on the drill ship of sea is passed in the described shell body.
2. a kind of seabed mud intake system that realizes not having marine riser mud veclamation drilling well as claimed in claim 1, it is characterized in that: the top of the described shell body of described seabed mud suction apparatus is the two-stage funnel section, and the bottom is a direct tube section; Sealing is provided with the rotation assembly in the described shell body, and described rotation assembly is with described shell body bottom and described shell body upper isolation, and described shell body bottom connects subsea blow out preventer group upper end, and it is oral that described subsea blow out preventer group lower end connects submarine well.
3. a kind of seabed mud intake system that realizes not having marine riser mud veclamation drilling well as claimed in claim 2, it is characterized in that: described rotation assembly comprises outer cylinder body, inner barrel and cooling fluid conveying device; Described outer cylinder body is secondary funnel section and the bottom direct tube section that the infundibulate sealing is arranged on described shell body; The bearing that described inner barrel is provided with by some intervals rotates and is arranged in the outer cylinder body, and the upper and lower end between described inner barrel and the outer cylinder body is respectively arranged with bearing positioning device, and two described bearing positioning device inboards are respectively arranged with associated sealing arrangement for bearings; The upper and lower end of described inner barrel is symmetrically arranged with the solid plate of glue core, and the solid plate of described two glue cores is provided with the packing unit that is used to seal described drilling rod; Described cooling fluid conveying device comprises the annular channel that is separately positioned on the described associated sealing arrangement for bearings of upper and lower end, and cooling fluid is injected runner, cooling fluid delivery channel, and the parallel vertical runner of two on the described outer cylinder body that is oppositely arranged on; Described cooling fluid is injected the described annular channel that runner one end is communicated with top, and the other end passes described outer cylinder body and is connected liquid coolant sources with shell body; Described cooling fluid delivery channel is arranged on described cooling fluid and injects on the described outer cylinder body of runner below, and passes described shell body; Wherein the upper/lower terminal of a described vertical runner is communicated with the described annular channel of described cooling fluid delivery channel and bottom respectively, and the upper/lower terminal of another described vertical runner is communicated with the described annular channel on top and the described annular channel of bottom respectively.
4. a kind of seabed mud intake system that realizes not having marine riser mud veclamation drilling well as claimed in claim 3, it is characterized in that: described seabed mud suction apparatus is provided with hydraulic locking mechanism, described hydraulic locking mechanism comprises in the cylinder body that is arranged on the shell body outside, the described cylinder body and is provided with the packed-piston bar, the sealed end of described packed-piston bar connects hydraulic system, tailpiece of the piston rod is used to be located in described shell body and the outer cylinder body, and is provided with the recovery spring between described tailpiece of the piston rod and the described cylinder body.
5. a kind of seabed mud intake system that realizes not having marine riser mud veclamation drilling well as claimed in claim 3, it is characterized in that: the described shell body of described seabed mud suction apparatus is provided with current by pass, described current by pass is communicated with between described shell body and the described outer cylinder body, be provided with spring in the described current by pass, described spring is provided with spool near an end of described outer cylinder body.
6. a kind of seabed mud intake system that realizes not having marine riser mud veclamation drilling well as claimed in claim 4, it is characterized in that: the described shell body of described seabed mud suction apparatus is provided with current by pass, described current by pass is communicated with between described shell body and the described outer cylinder body, be provided with spring in the described current by pass, described spring is provided with spool near an end of described outer cylinder body.
7. as claim 3 or 4 or 5 or 6 described a kind of seabed mud intake systems that realize not having marine riser mud veclamation drilling well, it is characterized in that: associated sealing arrangement for bearings and bearing positioning device between described inner barrel and the described outer cylinder body are provided with grease channel; Be provided with the lubrication pressure bascule between the described bearing, described lubrication pressure bascule comprises dummy piston, described dummy piston is provided with balance chamber, be provided with the compression spring in the described balance chamber, described shell body and outer cylinder body are provided with a runner that is communicated with described balance chamber and the outside seawater of described shell body.
8. as claim 1 or 2 or 3 or 4 or 5 or 6 described a kind of seabed mud intake systems that realize not having marine riser mud veclamation drilling well, it is characterized in that: on the sidewall of the described shell body bottom of described seabed mud suction apparatus, the described side exit that is provided with that stretches out has two, is provided with the drilling liquid pressure monitoring system on the sidewall of two described side exits; On the outer wall of described shell body, the top of two described side exits is symmetrically arranged with two seabed supports, is provided with seabed illumination and video recording equipment on each described seabed support.
9. a kind of seabed mud intake system that realizes not having marine riser mud veclamation drilling well as claimed in claim 7, it is characterized in that: on the sidewall of the described shell body bottom of described seabed mud suction apparatus, the described side exit that is provided with that stretches out has two, is provided with the drilling liquid pressure monitoring system on the sidewall of two described side exits; On the outer wall of described shell body, the top of two described side exits is symmetrically arranged with two seabed supports, is provided with seabed illumination and video recording equipment on each described seabed support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201020676362XU CN201963231U (en) | 2010-12-22 | 2010-12-22 | Subsea mud suction system for realizing riser-free mud recovery drilling |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201020676362XU CN201963231U (en) | 2010-12-22 | 2010-12-22 | Subsea mud suction system for realizing riser-free mud recovery drilling |
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| CN201963231U true CN201963231U (en) | 2011-09-07 |
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| CN102080510A (en) * | 2010-12-22 | 2011-06-01 | 中国海洋石油总公司 | Submarine mud suction system and method for realizing marine riser-free mud reclamation well drilling |
| CN105531215A (en) * | 2013-05-13 | 2016-04-27 | A·H·斯洛克姆 | Method and apparatus for bringing under control an uncontrolled flow through a flow device |
| WO2017037422A1 (en) * | 2015-08-28 | 2017-03-09 | Managed Pressure Operations Pte. Ltd. | Method of operating a drilling system |
| NO20151451A1 (en) * | 2015-10-23 | 2017-04-27 | Ehi As | Improvements in particular relating to wellbore circulation operations |
| CN109057732A (en) * | 2018-09-30 | 2018-12-21 | 中国石油集团川庆钻探工程有限公司长庆钻井总公司 | A kind of slurry type grouting circulator and its application method |
| CN111155931A (en) * | 2018-11-07 | 2020-05-15 | 派格水下技术(广州)有限公司 | Drilling system for geological exploration drilling |
| CN113464053A (en) * | 2021-06-09 | 2021-10-01 | 派格水下技术(广州)有限公司 | Underwater small-sized wellhead coiled tubing drilling system |
| CN113818822A (en) * | 2021-10-22 | 2021-12-21 | 中国石油化工股份有限公司 | Drilling fluid recovery system based on no marine riser |
| CN115075763A (en) * | 2022-06-02 | 2022-09-20 | 中国地质科学院勘探技术研究所 | Suction module capable of being repeatedly put into sealing device and technological method |
| CN116006161A (en) * | 2023-02-03 | 2023-04-25 | 中国石油大学(华东) | Visual rock debris migration simulation device and method for drilling mud circulation pipeline without marine riser |
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- 2010-12-22 CN CN201020676362XU patent/CN201963231U/en not_active Expired - Lifetime
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| US10513912B2 (en) | 2012-05-13 | 2019-12-24 | Alexander Henry Slocum | Method and apparatus for bringing under control an uncontrolled flow through a flow device |
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| CN111155931A (en) * | 2018-11-07 | 2020-05-15 | 派格水下技术(广州)有限公司 | Drilling system for geological exploration drilling |
| CN113464053A (en) * | 2021-06-09 | 2021-10-01 | 派格水下技术(广州)有限公司 | Underwater small-sized wellhead coiled tubing drilling system |
| CN113818822A (en) * | 2021-10-22 | 2021-12-21 | 中国石油化工股份有限公司 | Drilling fluid recovery system based on no marine riser |
| CN115075763A (en) * | 2022-06-02 | 2022-09-20 | 中国地质科学院勘探技术研究所 | Suction module capable of being repeatedly put into sealing device and technological method |
| CN116006161A (en) * | 2023-02-03 | 2023-04-25 | 中国石油大学(华东) | Visual rock debris migration simulation device and method for drilling mud circulation pipeline without marine riser |
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