CN201843600U - SAGD mechanical lifting circulating preheating equipment - Google Patents
SAGD mechanical lifting circulating preheating equipment Download PDFInfo
- Publication number
- CN201843600U CN201843600U CN2010206104711U CN201020610471U CN201843600U CN 201843600 U CN201843600 U CN 201843600U CN 2010206104711 U CN2010206104711 U CN 2010206104711U CN 201020610471 U CN201020610471 U CN 201020610471U CN 201843600 U CN201843600 U CN 201843600U
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- tubing string
- equipment
- horizontal
- protective casing
- oil
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- 238000010796 Steam-assisted gravity drainage Methods 0.000 title claims abstract description 18
- 239000003921 oil Substances 0.000 claims abstract description 23
- 238000010793 Steam injection (oil industry) Methods 0.000 claims abstract description 18
- 239000003129 oil well Substances 0.000 claims abstract description 15
- 239000010779 crude oil Substances 0.000 claims abstract description 5
- 230000001681 protective effect Effects 0.000 claims description 21
- 238000010438 heat treatment Methods 0.000 claims description 14
- 230000002706 hydrostatic effect Effects 0.000 abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 3
- 238000005086 pumping Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 9
- 238000005516 engineering process Methods 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 6
- 239000007788 liquid Substances 0.000 description 4
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 238000010794 Cyclic Steam Stimulation Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000011981 development test Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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Abstract
The utility model provides a SAGD machinery lifts circulation preheating device is applied to the technical sleeve pipe of horizontal well, and this equipment includes: the steam injection pipe column comprises a vertical section and a horizontal section, the vertical section is positioned at the vertical part of the technical casing, the horizontal section is positioned at the horizontal part of the technical casing, and the tail end of the horizontal section injects steam into the horizontal well shaft to realize oil layer preheating; a mechanical lifting string located in the vertical section of the technical casing; and the oil well pump is connected to the lower bottom end of the mechanical lifting pipe column and is used for pumping steam condensate water in the horizontal well and crude oil doped in the steam condensate water. The utility model discloses can solve because of deep well or stratum pressure are less than the deep hydrostatic column pressure of well and can not carry out the problem that the oil reservoir circulation preheated.
Description
Technical field
The utility model is about the thickened oil recovery technology, and particularly about SAGD machinery lifting preheating technology, concrete will be about a kind of SAGD machinery lifting circulation pre-heating device.
Background technology
The in-place oil in some oil fields, because oil is thick and/or formation temperature is low, make crude oil flow difficulties in the stratum, at this part oilfield exploitation, carried out a large amount of development tests both at home and abroad, wherein SAGD (Stream AssistedGravity Drainage SAGD) exploitation method is a mature technique comparatively, and SAGD is a kind of thickened oil recovery mode, its technology is in the continuous steam injection of last horizontal well, and following horizontal well recovers the oil continuously.The SAGD exploitation method need be carried out preheating to oil reservoir in the reservoir exploitation initial start stage, and the pre-heating technique method generally has two kinds, and a kind of is cyclic steam stimulation method, a kind of for the circulation pre-heating mean.Cyclic steam stimulation method easily causes the oil reservoir preheating inhomogeneous, and the circulation pre-heating mean is lower than the situation of well depth liquid column hydrostatic pressure for deep-well or strata pressure, can not effectively carry out preheating.
The utility model content
The utility model provides a kind of SAGD machinery lifting circulation pre-heating device, is lower than the problem that the well depth liquid column hydrostatic pressure can not carry out oil reservoir circulation preheating to solve because of deep-well or strata pressure.
The utility model provides a kind of SAGD machinery lifting circulation pre-heating device, be applied in the protective casing of horizontal well, this equipment comprises: the steam injection tubing string, described steam injection tubing string comprises vertical section and horizontal segment, described vertical section is positioned at the vertical component of described protective casing, described horizontal segment is positioned at the horizontal component of described protective casing, and the end of described steam injection tubing string is realized the oil reservoir preheating to horizontal well pit shaft steam in jection; Machinery lifting tubing string is positioned at the vertical component of described protective casing; Oil well pump is connected the following bottom of described mechanical lifting tubing string, is used for extracting the crude oil that mixes in the steam condensate (SC) of horizontal well and the steam condensate (SC).
Useful technique effect of the present utility model: can solve because of deep-well or strata pressure and be lower than the problem that the well depth liquid column hydrostatic pressure can not carry out oil reservoir circulation preheating.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.In the accompanying drawings:
Fig. 1 is the structural representation of the utility model embodiment SAGD machinery lifting circulation pre-heating device;
Fig. 2 is the cross sectional representation of the utility model embodiment SAGD machinery lifting circulation pre-heating device vertical component;
The ground suspension equipment structural representation of Fig. 3 the utility model embodiment SAGD machinery lifting circulation pre-heating device.
The specific embodiment
For the purpose, technical scheme and the advantage that make the utility model embodiment is clearer, the utility model embodiment is described in further details below in conjunction with accompanying drawing.At this, illustrative examples of the present utility model and explanation thereof are used to explain the utility model, but not as to qualification of the present utility model.
Fig. 1 is the structural representation of the utility model embodiment SAGD machinery lifting circulation pre-heating device; Be applied in the protective casing 101 of horizontal well, described equipment comprises: steam injection tubing string 102, mechanical lifting tubing string 103 and oil well pump 104.
Described steam injection tubing string 102 comprises vertical section 107 and horizontal segment 108, described vertical section 107 is positioned at the vertical component of described protective casing, described horizontal segment 108 is positioned at the horizontal component of described protective casing, and the end of described steam injection tubing string 102 is realized the oil reservoir preheating to horizontal well pit shaft steam in jection.
Preferably, the internal diameter 〉=40mm of described steam injection tubing string 102, external diameter≤89mm; The end of described horizontal segment 108 comprises terminal sieve 105, is used for the horizontal component steam in jection to described protective casing.
Fig. 2 is the cross sectional representation of the utility model embodiment SAGD machinery lifting circulation pre-heating device vertical component, the external diameter of the box cupling 201 of described steam injection tubing string 102 than the internal diameter of the horizontal component of described protective casing to 10mm when young, preferably, external diameter 〉=the 108mm of the box cupling 201 of described steam injection tubing string, described box cupling adopt two-way chamfering to connect.
Machinery lifting tubing string 103 is positioned at the vertical component of described protective casing; Preferably, described mechanical lifting tubing string 103 external diameters 〉=70mm, internal diameter 〉=62mm; To 10mm when young, the box cupling 202 of mechanical lifting tubing string 103 is approximately 89mm to the maximum outside diameter sum of the maximum outside diameter of described steam injection tubing string 102 and mechanical lift tube 103 posts than the internal diameter of the vertical component of described protective casing 101, and the utility model is not as limit.
Further, described oil well pump 104 depth of setting L satisfy:
L≥H-100(P-1)
Wherein, H is oil reservoir vertical depth m, and P is strata pressure MPa.
In a preferable enforcement, the internal diameter 〉=220mm of the vertical component of described protective casing 101, the internal diameter 〉=178mm of the horizontal component of described protective casing.
Fig. 3 is the ground suspension equipment structural representation of the utility model embodiment SAGD machinery lifting circulation pre-heating device; Among Fig. 3,301 are the oil pipe outlet, and 302 is the steam inlet, and 303 is the casing annulus access, and 304 is polished rod, and 305 is polished rod sealer, and 306 is the rubber gate, and 307 is long-range hydraulic pressure blowout preventer.
Ground lifting equipment, adopt conventional pumping unit, its oil pumper manufacturing parameter to satisfy to be equal to the discharge capacity demand of annotating the vapour amount (as injection rate is 100t/d, the optional following combination of its oil pumper operational factor:
Table 1
Give one example below equipment of the present utility model be described:
The oil well in a certain oil field, adopt the preheating that circulates of this technology on November 23rd, 2008, stopped on March 31st, 09 to annotate, annotated vapour 130 days, the tired vapour 10029.9t that annotates, tired production fluid 12176.7t, tired produce oil 1902.6t annotates vapour discharge capacity 4.5t/h, and wellhead temperature is up to 170 ℃, the connected well section reaches 69%, pressure control production.It is normal to annotate vapour, lifting, gathering and transportation technology system works.
Simultaneously be lowered to this technology circulate preheating at first well group (upper and lower two mouthfuls of water horizontal wells) in September, 2009, and its creation data sees Table 2.
| Parameter | Design | Actual |
| Day is annotated vapour (t) | 72 | 67 |
| The tired vapour (t) of annotating | 14400 | 14419 |
| Tired production fluid (t) | 12960 | 12490 |
| The accumulation production-injection ratio | 0.9 | 0.87 |
| Production normal phase production-injection ratio | 0.9 | 0.92 |
| Bottom hole temperature (BHT) (℃) | ＞200 | 220 |
First well group result of the test shows that injection-production technology of the present utility model can design and can satisfy two horizontal well circulation preheating requirements, and from the reflection of temperature observation well data, horizontal segment temperature field is improved significantly.
Useful technique effect of the present utility model: can solve because of deep-well or strata pressure and be lower than the problem that the well depth liquid column hydrostatic pressure can not carry out oil reservoir circulation preheating.
Above-described specific embodiment; the purpose of this utility model, technical scheme and beneficial effect are further described; institute is understood that; the above only is a specific embodiment of the utility model; and be not used in and limit protection domain of the present utility model; all within spirit of the present utility model and principle, any modification of being made, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (12)
1. SAGD machinery lifting circulation pre-heating device is applied to it is characterized in that in the protective casing of horizontal well that described equipment comprises:
The steam injection tubing string, described steam injection tubing string comprises vertical section and horizontal segment, described vertical section is positioned at the vertical component of described protective casing, and described horizontal segment is positioned at the horizontal component of described protective casing, and the end of described steam injection tubing string is realized the oil reservoir preheating to horizontal well pit shaft steam in jection;
Machinery lifting tubing string is positioned at the vertical component of described protective casing;
Oil well pump is connected the following bottom of described mechanical lifting tubing string, is used for extracting the crude oil that mixes in the steam condensate (SC) of horizontal well and the steam condensate (SC).
2. equipment as claimed in claim 1 is characterized in that, the end of described horizontal segment comprises terminal sieve, is used for the horizontal component steam in jection to described protective casing.
3. equipment as claimed in claim 1 is characterized in that, described oil well pump depth of setting L satisfies:
L≥H-100(P-1)
Wherein, H is the oil reservoir vertical depth, and P is a strata pressure.
4. equipment as claimed in claim 1 is characterized in that, the piston of described oil well pump adopts the sucker rod on-off connector to be connected with sucker rod.
5. equipment as claimed in claim 1 is characterized in that, steam injection tubing string maximum outside diameter and mechanical lifting tubing string maximum outside diameter sum than the internal diameter of the vertical component of described protective casing to 10mm when young.
6. equipment as claimed in claim 1 is characterized in that, the external diameter of the box cupling of described steam injection tubing string than the internal diameter of the horizontal component of described protective casing to 10mm when young.
7. equipment as claimed in claim 6 is characterized in that, described box cupling adopts two-way chamfering to connect.
8. as claim 1 or 5 described equipment, it is characterized in that the internal diameter 〉=220mm of the vertical component of described protective casing.
9. equipment as claimed in claim 5 is characterized in that, the maximum outside diameter 〉=70mm of described mechanical lifting tubing string, the internal diameter 〉=62mm of described mechanical lifting tubing string.
10. as claim 5 or 6 described equipment, it is characterized in that the internal diameter 〉=40mm of described steam injection tubing string.
11. equipment as claimed in claim 1 is characterized in that, the maximum outside diameter of oil well pump body and oil well pump box cupling all≤92mm.
12. equipment as claimed in claim 11 is characterized in that, described oil well pump box cupling adopts two-way chamfering to connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206104711U CN201843600U (en) | 2010-11-16 | 2010-11-16 | SAGD mechanical lifting circulating preheating equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206104711U CN201843600U (en) | 2010-11-16 | 2010-11-16 | SAGD mechanical lifting circulating preheating equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201843600U true CN201843600U (en) | 2011-05-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206104711U Expired - Lifetime CN201843600U (en) | 2010-11-16 | 2010-11-16 | SAGD mechanical lifting circulating preheating equipment |
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| Country | Link |
|---|---|
| CN (1) | CN201843600U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102518415A (en) * | 2011-12-13 | 2012-06-27 | 中国石油天然气股份有限公司 | Steam assisted gravity drainage method for fractured single horizontal well |
| CN102877798A (en) * | 2012-10-19 | 2013-01-16 | 元路 | Multi-tube coaxial tubing coupling |
| CN103603637A (en) * | 2013-10-28 | 2014-02-26 | 中国石油天然气股份有限公司 | Experimental device and system for exploiting super heavy oil by gas-assisted SAGD (steam assisted gravity drainage) |
| CN103615225A (en) * | 2013-11-28 | 2014-03-05 | 中国石油天然气股份有限公司 | Double-horizontal-well isothermal difference forced steam circulation preheating method for middle-deep layer oil reservoir |
| WO2015077954A1 (en) * | 2013-11-28 | 2015-06-04 | 中国石油天然气股份有限公司 | Method for isothermal differential forced steam cyclic pre-heating for twin horizontal wells of mid-depth layer of oil reservoir |
| CN105422086A (en) * | 2015-12-08 | 2016-03-23 | 中国石油天然气股份有限公司 | Method and device for acquiring steam absorption section |
| CN105756644A (en) * | 2014-12-17 | 2016-07-13 | 中国石油天然气股份有限公司 | Preheating method before oil extraction of double horizontal wells and oil extraction method of double horizontal wells |
| CN107869339A (en) * | 2016-09-23 | 2018-04-03 | 中国石油化工股份有限公司 | A kind of steam drives producing well hoisting system |
-
2010
- 2010-11-16 CN CN2010206104711U patent/CN201843600U/en not_active Expired - Lifetime
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102518415A (en) * | 2011-12-13 | 2012-06-27 | 中国石油天然气股份有限公司 | Steam assisted gravity drainage method for fractured single horizontal well |
| CN102518415B (en) * | 2011-12-13 | 2015-07-08 | 中国石油天然气股份有限公司 | Steam assisted gravity drainage method for fractured single horizontal well |
| CN102877798A (en) * | 2012-10-19 | 2013-01-16 | 元路 | Multi-tube coaxial tubing coupling |
| CN103603637A (en) * | 2013-10-28 | 2014-02-26 | 中国石油天然气股份有限公司 | Experimental device and system for exploiting super heavy oil by gas-assisted SAGD (steam assisted gravity drainage) |
| CN103603637B (en) * | 2013-10-28 | 2016-08-31 | 中国石油天然气股份有限公司 | Experimental device and system for exploiting super heavy oil by gas-assisted SAGD (steam assisted gravity drainage) |
| CN103615225A (en) * | 2013-11-28 | 2014-03-05 | 中国石油天然气股份有限公司 | Double-horizontal-well isothermal difference forced steam circulation preheating method for middle-deep layer oil reservoir |
| WO2015077954A1 (en) * | 2013-11-28 | 2015-06-04 | 中国石油天然气股份有限公司 | Method for isothermal differential forced steam cyclic pre-heating for twin horizontal wells of mid-depth layer of oil reservoir |
| CN105756644A (en) * | 2014-12-17 | 2016-07-13 | 中国石油天然气股份有限公司 | Preheating method before oil extraction of double horizontal wells and oil extraction method of double horizontal wells |
| CN105756644B (en) * | 2014-12-17 | 2018-09-04 | 中国石油天然气股份有限公司 | Preheating method before oil extraction of double horizontal wells and oil extraction method of double horizontal wells |
| CN105422086A (en) * | 2015-12-08 | 2016-03-23 | 中国石油天然气股份有限公司 | Method and device for acquiring steam absorption section |
| CN105422086B (en) * | 2015-12-08 | 2018-08-10 | 中国石油天然气股份有限公司 | Method and device for acquiring steam absorption section |
| CN107869339A (en) * | 2016-09-23 | 2018-04-03 | 中国石油化工股份有限公司 | A kind of steam drives producing well hoisting system |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110525 |