CN203783536U - High-pressure gas injection and deep pumping integrated pipe column for ultra-deep well - Google Patents
High-pressure gas injection and deep pumping integrated pipe column for ultra-deep well Download PDFInfo
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- CN203783536U CN203783536U CN201420099122.6U CN201420099122U CN203783536U CN 203783536 U CN203783536 U CN 203783536U CN 201420099122 U CN201420099122 U CN 201420099122U CN 203783536 U CN203783536 U CN 203783536U
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- gas injection
- pipe
- pressure gas
- oil
- deeply
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- 238000002347 injection Methods 0.000 title claims abstract description 54
- 239000007924 injection Substances 0.000 title claims abstract description 54
- 238000005086 pumping Methods 0.000 title abstract description 6
- 239000003129 oil well Substances 0.000 claims abstract description 11
- 210000002445 nipple Anatomy 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 239000003921 oil Substances 0.000 description 29
- 238000005457 optimization Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 2
- 102000029828 Melanin-concentrating hormone receptor Human genes 0.000 description 1
- 108010047068 Melanin-concentrating hormone receptor Proteins 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000009747 swallowing Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The utility model provides a high-pressure gas injection and deep pumping integrated pipe column for an ultra-deep well, which can go deep into an oil layer of the ultra-deep well. The high-pressure gas injection and deep pumping integrated pipe column for the ultra-deep well comprises a casing pipe and an oil pipe arranged in the casing pipe, wherein the oil pipe comprises an upper oil pipe and a lower oil pipe which are connected through a bridge casing pipe, and an oil well pump is arranged in the bridge casing pipe. The integrated pipe column not only can meet requirements of ultra-high and high-pressure safe gas injection, but also reduces the workload caused by frequent pipe column replacement in multi-period gas injection production simultaneously, and the work efficiency is improved.
Description
Technical field
The utility model relates to a kind of tubular column structure, relates in particular to one and deeply takes out integrated pipe column for ultradeep well high-pressure gas injection.
Background technology
At present, each oilfield exploitation has entered the high moisture middle and later periods, although take such as some row engineering measures such as profile control, water blockoff, but still there is part crude oil to remain in underground mining not out, particularly low-permeability oil deposit, heavy crude reservoir and gas condensate reservoir all fail to realize adequately and reasonably exploitation, and gas injection has become a kind of development and improved faster recovery efficiency technique.
Domestic and international application more widely method of gas injection is injection gas displacement, design of string pipe meets merely gas injection requirement, without considering that the later stage turns the needs that pumping is produced, but for Single well gas injection swallowing spitting plug removal, after oil well gas injection, needing to turn pumping produces, machine is taken out tubing string can not be used for gas injection, the pump barrel intensity of oil well pump is low, pump barrel bottom connection gas injection oil pipe and downhole tool are limited, simple gas injection tube column can not machine pumping produce, gas injection turns takes out frequent replacing tubing string and affects tubing thread gas tightness, increases gas injection cost simultaneously, reduces production timeliness.Because the density of gas is lower, so gas injection well well head pressure is high, gas injection tube column meets gas injection engineering and safe requirement under the condition of existing hole condition, the gas injection degree of depth is implemented in 3500m in domestic and international each oil field, for the ultradeep well degree of depth at 5500m, gas injection pressure is up to 55MPa, and most of 7 " not tieback 9-5/8 " completion that adopts of ultradeep well completion casing, exist casing head withstand voltage low, gas tightness is poor, cementing quality is poor, the problems such as gas injection pressure height, when gas injection, gas may channel to stratum and ground by non-hermetic seal sleeve pipe, cause potential safety hazard, therefore gas injection tube column security performance is proposed to high requirement.Mainly there is following problem to ultradeep well gas injection in current various gas injection tube column design:
1) gas injection tube column intensity and Seal Design require to be less than 3500m, do not meet ultradeep well high-pressure gas injection requirement;
2) after gas injection, turn and take out need of production replacing tubing string, increase gas injection cost, reduce production timeliness;
3) frequently change tubing string operation, affect tubing thread gas tightness, do not meet multicycle gas injection tube column requirement.
Therefore super dark gas injection well need to be from well head to downhole tool, the full pit shaft such as tubular column structure carries out hermetic seal and optimal design.
Summary of the invention
In order to overcome the above problems, the utility model provides a kind of ultradeep well high-pressure gas injection deeply to take out integrated pipe column, this integrated pipe column not only can meet the requirement of super dark, high-voltage safety gas injection, has reduced the frequent workload of changing tubing string of multicycle gas injection-production simultaneously, has improved operating efficiency.
In order to achieve the above object, the utility model provides a kind of ultradeep well high-pressure gas injection deeply to take out integrated pipe column, it can be deep in the oil reservoir of ultradeep well, this ultradeep well high-pressure gas injection is deeply taken out integrated pipe column and is included sleeve pipe and be arranged on the oil pipe in sleeve pipe, oil pipe includes oil pipe and lower oil pipe, between upper and lower oil pipe, connect by gap bridge sleeve pipe, be wherein provided with oil well pump in the inside of gap bridge sleeve pipe.
As further optimization of the present utility model, oil well pump includes the pump barrel that is arranged on oil pump outside, is provided with sucker rod in pump barrel, and sucker rod one end in pump barrel is connected with plunger.
As further optimization of the present utility model, the interface of oil pipe is provided with screw thread.
As further optimization of the present utility model, the screw thread at oil pipe place is zigzag screw thread.
As further optimization of the present utility model, between pump barrel and gap bridge sleeve pipe, be connected by gap bridge pipe nipple, the two ends of gap bridge pipe nipple are the screw thread of two button-types.
As further optimization of the present utility model, between lower oil pipe and the borehole wall of ultradeep well, be provided with hydraulic packer.
As further optimization of the present utility model, the upper end that is positioned at hydraulic packer in lower oil pipe is provided with ball-and-seat.
As further optimization of the present utility model, ball-and-seat is for mixing rare ball-and-seat.
As further optimization of the present utility model, the bottom end seal of lower oil pipe is provided with plug.
Advantage of the present utility model is, integrated pipe column is taken out in ultradeep well high-pressure gas injection in the utility model deeply not only can meet that superelevation is dark, the requirement of high-voltage safety gas injection, reduce the frequent workload of changing tubing string of multicycle gas injection-production simultaneously, improved operating efficiency.
Brief description of the drawings
Fig. 1 is the structural representation that in the utility model, integrated pipe column is taken out in ultradeep well high-pressure gas injection deeply.
Detailed description of the invention
Below, by exemplary embodiment, the utility model is specifically described.But should be appreciated that element, structure and the feature in an embodiment also can be attached in other embodiments valuably in the situation that further not narrating.
Referring to Fig. 1, it is the structural representation that in the utility model, integrated pipe column is taken out in ultradeep well high-pressure gas injection deeply.As shown in the figure, integrated pipe column is taken out in this ultradeep well high-pressure gas injection deeply, this integrated pipe column is deep in the oil reservoir 12 of ultradeep well, include sleeve pipe 1 and be arranged on the oil pipe in sleeve pipe 1, oil pipe design preferences adopts P110 grade of steel, the interface of oil pipe is provided with screw thread, and preferably, this screw thread is zigzag screw thread; Oil pipe includes oil pipe 2 and lower oil pipe 8, the bottom end seal of lower oil pipe 8 is provided with plug 10, between upper and lower oil pipe, connect by gap bridge sleeve pipe 6, wherein be provided with oil well pump in the inside of gap bridge sleeve pipe 6, this oil well pump includes the pump barrel 4 that is arranged on oil pump outside, in pump barrel 4, be provided with sucker rod 3, sucker rod 3 one end in pump barrel 4 is connected with plunger 7, stretching out and shortening by sucker rod 3 like this, drive the reciprocating motion of plunger 7 in pump barrel 4, thereby can realize the variation of oil mass in oil well pump.
With further reference to Fig. 1, between pump barrel 4 and gap bridge sleeve pipe 6, be connected by gap bridge pipe nipple 5, the screw thread design that the two ends of gap bridge pipe nipple 5 are two button-types, can realize outside pin thread and be connected with gap bridge sleeve pipe 6, and inner box is connected with the pump barrel 4 of oil well pump.
Between above-mentioned lower oil pipe 8 and the borehole wall of ultradeep well, be provided with hydraulic packer 11, this hydraulic packer 11 is preferably hydraulic setting formula well completion packer, it is MCHR type hydraulic packer, hydraulic packer 11 can bear upper and lower High Pressure Difference, in addition, mix thin oil production for realization after guaranteeing gas injection, the upper end that is positioned at hydraulic packer 11 in lower oil pipe 8 is provided with ball-and-seat 9, and this ball-and-seat 9 is preferably hermetic seal and mixes rare ball-and-seat.
Be appreciated that the utility model is described by some embodiment, those skilled in the art know, in the situation that not departing from spirit and scope of the present utility model, can carry out various changes or equivalence replacement to these features and embodiment.In addition, under instruction of the present utility model, can modify to adapt to concrete situation and material and can not depart from spirit and scope of the present utility model these features and embodiment.Therefore, the utility model is not subject to the restriction of specific embodiment disclosed herein, and the embodiment within the scope of all the application's of falling into claim belongs in the scope that the utility model protects.
Claims (9)
1. integrated pipe column is taken out in a ultradeep well high-pressure gas injection deeply, it can be deep in the oil reservoir (12) of ultradeep well, it is characterized in that, this ultradeep well high-pressure gas injection is deeply taken out integrated pipe column and is included sleeve pipe (1) and be arranged on the oil pipe in sleeve pipe (1), oil pipe includes oil pipe (2) and lower oil pipe (8), between upper and lower oil pipe, connect by gap bridge sleeve pipe (6), be wherein provided with oil well pump in the inside of gap bridge sleeve pipe (6).
2. integrated pipe column is taken out in ultradeep well high-pressure gas injection according to claim 1 deeply, it is characterized in that, oil well pump includes the pump barrel (4) that is arranged on oil pump outside, is provided with sucker rod (3) in pump barrel (4), and sucker rod (3) one end in pump barrel (4) is connected with plunger (7).
3. integrated pipe column is taken out in ultradeep well high-pressure gas injection according to claim 1 and 2 deeply, it is characterized in that, the interface of oil pipe is provided with screw thread.
4. integrated pipe column is taken out in ultradeep well high-pressure gas injection according to claim 3 deeply, it is characterized in that, the screw thread at oil pipe place is zigzag screw thread.
5. integrated pipe column is taken out in ultradeep well high-pressure gas injection according to claim 4 deeply, it is characterized in that, between pump barrel (4) and gap bridge sleeve pipe (6), is connected by gap bridge pipe nipple (5), and the two ends of gap bridge pipe nipple (5) are the screw thread of two button-types.
6. integrated pipe column is taken out in ultradeep well high-pressure gas injection according to claim 5 deeply, it is characterized in that, is provided with hydraulic packer (11) between lower oil pipe (8) and the borehole wall of ultradeep well.
7. integrated pipe column is taken out in ultradeep well high-pressure gas injection according to claim 6 deeply, it is characterized in that, the upper end that is positioned at hydraulic packer (11) in lower oil pipe (8) is provided with ball-and-seat (9).
8. integrated pipe column is taken out in ultradeep well high-pressure gas injection according to claim 7 deeply, it is characterized in that, ball-and-seat (9) is for mixing rare ball-and-seat.
9. integrated pipe column is taken out in ultradeep well high-pressure gas injection according to claim 8 deeply, it is characterized in that, the bottom end seal of lower oil pipe (8) is provided with plug (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420099122.6U CN203783536U (en) | 2014-03-05 | 2014-03-05 | High-pressure gas injection and deep pumping integrated pipe column for ultra-deep well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420099122.6U CN203783536U (en) | 2014-03-05 | 2014-03-05 | High-pressure gas injection and deep pumping integrated pipe column for ultra-deep well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203783536U true CN203783536U (en) | 2014-08-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420099122.6U Expired - Lifetime CN203783536U (en) | 2014-03-05 | 2014-03-05 | High-pressure gas injection and deep pumping integrated pipe column for ultra-deep well |
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| CN (1) | CN203783536U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104929596A (en) * | 2015-07-13 | 2015-09-23 | 中国石油化工股份有限公司 | Heavy oil recovery method through blending gas lift |
| CN106223857A (en) * | 2016-08-24 | 2016-12-14 | 中国石油集团川庆钻探工程有限公司工程技术研究院 | A kind of continuous circulating device of casing job and method |
-
2014
- 2014-03-05 CN CN201420099122.6U patent/CN203783536U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104929596A (en) * | 2015-07-13 | 2015-09-23 | 中国石油化工股份有限公司 | Heavy oil recovery method through blending gas lift |
| CN106223857A (en) * | 2016-08-24 | 2016-12-14 | 中国石油集团川庆钻探工程有限公司工程技术研究院 | A kind of continuous circulating device of casing job and method |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140820 |
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| CX01 | Expiry of patent term |