CN204267005U - A kind of multi-functional tubing string realizing separate layer acid treatment, seperated layer water injection - Google Patents
A kind of multi-functional tubing string realizing separate layer acid treatment, seperated layer water injection Download PDFInfo
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- CN204267005U CN204267005U CN201420702095.7U CN201420702095U CN204267005U CN 204267005 U CN204267005 U CN 204267005U CN 201420702095 U CN201420702095 U CN 201420702095U CN 204267005 U CN204267005 U CN 204267005U
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- well
- high pressure
- tubing string
- oil pipe
- flushing
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Abstract
The utility model discloses a kind of multi-functional tubing string realizing separate layer acid treatment, seperated layer water injection, comprise oil pipe, described oil pipe is arranged acidifying water filling integrated water distribution device, upper high pressure well packer capable of flushing well, lower high pressure well packer capable of flushing well, wherein goes up high pressure well packer capable of flushing well, upper and lower position that lower high pressure well packer capable of flushing well lays respectively at acidifying water filling integrated water distribution device.Described oil pipe is also provided with level pressure injection well downhole flow regulator, and described level pressure injection well downhole flow regulator is positioned at below lower high pressure well packer capable of flushing well.The bottom of described oil pipe is provided with self-locking ball-and-seat, and this valve is positioned at the below of level pressure injection well downhole flow regulator.Described tubing string is also supporting anticreep instrument, comprises expansion loop, hydraulic anchor and hydraulic slip.Described tubing string realizes separate layer acid treatment and the seperated layer water injection that one-trip string completes multi-section multi-layer; and possess the anticreep and casing protection function of high temperature high voltage resistant, tubing string, reduce flow chart, save tool expense and operating cost; extend tubing string working life, meet the requirement of oil field cost efficiency.
Description
Technical field
The utility model relates to acidifying and water injection string, specifically a kind of multi-functional tubing string realizing separate layer acid treatment, seperated layer water injection.
Background technology
Separate layer acid treatment technique is the important means that solution separate water injection well target zone is shorted, and is used widely in oilfield development process.For realizing separate layer acid treatment and the seperated layer water injection of water injection well, the first lower leaf acidifying tubing string of main employing implements acidifying at present, then trips out acidifying tubing string lower leaf water injection string completion again.This method Shortcomings part: one is need to put twice working string, adds flow chart and activity duration, extends and account for the well cycle; Two is cause tool materials waste and operating cost waste, can not meet the requirement of oil field cost efficiency.
Patent No. ZL200820173058.6 discloses a kind of separate layer acid treatment water filling integral tubular column, this tubing string adopts the method dropping into and go out different densities blocking ball, achieve one-level one section of acidifying and the water filling of card envelope water injection well, but still have following deficiency: 1-fails to realize separate layer acid treatment and the seperated layer water injection of multi-section multi-layer, this tubing string of 2-adopts inflatable packer, be not suitable for high temperature, the separate layer acid treatment of high-pressure well and seperated layer water injection, 3-tubing string does not take grappling, during acidifying, packer bears and goes up more greatly top power, string creep, easily causes packer to lose efficacy.
Summary of the invention
The purpose of this utility model is to provide a kind of multi-functional tubing string realizing separate layer acid treatment, seperated layer water injection; effectively overcome or avoid the shortcoming and defect that exists in above-mentioned prior art; realize separate layer acid treatment and seperated layer water injection that one-trip string completes multi-section multi-layer; and possess the anticreep and casing protection function of high temperature high voltage resistant, tubing string; reduce flow chart; save tool expense and operating cost, extend tubing string working life, meet the requirement of oil field cost efficiency.
In order to reach above-mentioned purpose, the utility model have employed following technical scheme, a kind of multi-functional tubing string realizing separate layer acid treatment, seperated layer water injection, comprise oil pipe, described oil pipe is arranged acidifying water filling integrated water distribution device, upper high pressure well packer capable of flushing well, lower high pressure well packer capable of flushing well, wherein goes up high pressure well packer capable of flushing well, upper and lower position that lower high pressure well packer capable of flushing well lays respectively at acidifying water filling integrated water distribution device.
Described oil pipe is also provided with level pressure injection well downhole flow regulator, and described level pressure injection well downhole flow regulator is positioned at below lower high pressure well packer capable of flushing well.
Described oil pipe is also provided with hydraulic slip, and described hydraulic slip is between level pressure injection well downhole flow regulator and lower high pressure well packer capable of flushing well.
The bottom of described oil pipe is provided with self-locking ball-and-seat, and this valve is positioned at the below of level pressure injection well downhole flow regulator.
Described oil pipe is also provided with expansion loop, and described expansion loop is positioned at the top of high pressure well packer capable of flushing well.
Described oil pipe is also provided with hydraulic anchor, and described hydraulic anchor is between expansion loop and upper high pressure well packer capable of flushing well.
Compared to prior art, the utility model has following beneficial effect:
1, expansion loop, hydraulic anchor, hydraulic slip composition grappling collocation structure, realize tubing string and do not wriggle under pressure, temperature effect, improve and be constructed into power, extension tube column life;
2, high pressure well packer capable of flushing well realizes the function separating oil reservoir, backwash function and anti-inter-zone commununation, wherein goes up high pressure well packer capable of flushing well and also achieves casing protection function;
3, acidifying water filling integrated water distribution device realizes acidifying and changes layer and water distribution function;
4, after level pressure injection well downhole flow regulator realizes packer setting, constant pressure turn on and water filling time banish water function;
5, before self-locking ball-and-seat realizes pitching, oil jacket is communicated with, and after pitching, reverse feed liquor, suppresses rear valve ball self-locking, avoids valve ball to be gone out by liquid stream;
6, separate layer acid treatment and the seperated layer water injection of multi-section multi-layer is realized;
7, realize just for, pickling, the row of returning.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of multi-functional tubing string realizing separate layer acid treatment, seperated layer water injection of the present utility model.
Detailed description of the invention
Relevant detailed description of the present utility model and technology contents, coordinate accompanying drawing to be described as follows, but accompanying drawing only provides with reference to the use with explanation, is not used for being limited the utility model.
With reference to accompanying drawing 1, realize a multi-functional tubing string for separate layer acid treatment, seperated layer water injection, comprise expansion loop 1, hydraulic anchor 2, upper high pressure well packer capable of flushing well 3, acidifying water filling integrated water distribution device 4, lower high pressure well packer capable of flushing well 5, hydraulic slip 6, level pressure injection well downhole flow regulator 7, self-locking ball-and-seat 8 and oil pipe and enter in sleeve pipe 10 for 9 times.Oil pipe 9 is provided with in turn expansion loop 1, hydraulic anchor 2, upper high pressure well packer capable of flushing well 3, acidifying water filling integrated water distribution device 4, lower high pressure well packer capable of flushing well 5, hydraulic slip 6, level pressure injection well downhole flow regulator 7, self-locking ball-and-seat 8.
Be connected by oil pipe 9 between expansion loop 1, hydraulic anchor 2, upper high pressure well packer capable of flushing well 3, acidifying water filling integrated water distribution device 4, lower high pressure well packer capable of flushing well 5, hydraulic slip 6, level pressure injection well downhole flow regulator 7, self-locking ball-and-seat 8.Upper high pressure well packer capable of flushing well, lower high pressure well packer capable of flushing well are compression Y type packer construction, and self-locking ball-and-seat is pitching sealing, hydraulic pressure self-locking structure.It is two-stage two-segment tubular column structure in Fig. 1.
Oil pipe is arranged acidifying water filling integrated water distribution device 4, upper high pressure well packer capable of flushing well 3, lower high pressure well packer capable of flushing well 5, wherein goes up high pressure well packer capable of flushing well, upper and lower position that lower high pressure well packer capable of flushing well lays respectively at acidifying water filling integrated water distribution device.
Oil pipe is also provided with level pressure injection well downhole flow regulator 7, and described level pressure injection well downhole flow regulator is positioned at below lower high pressure well packer capable of flushing well.
Oil pipe is also provided with hydraulic slip 6, and described hydraulic slip is between level pressure injection well downhole flow regulator and lower high pressure well packer capable of flushing well.
The bottom of oil pipe is provided with self-locking ball-and-seat 8, and this valve is positioned at the below of level pressure injection well downhole flow regulator.
Oil pipe is also provided with expansion loop 1, and described expansion loop is positioned at the top of high pressure well packer capable of flushing well.
Oil pipe is also provided with hydraulic anchor 2, and described hydraulic anchor is between expansion loop and upper high pressure well packer capable of flushing well.Expansion loop, hydraulic anchor and hydraulic slip all belong to anticreep instrument.
Before entering under tubing string, dropped into by integrated fuse in acidifying water filling integrated water distribution device, the waterflood path of shutoff acidifying water filling integrated water distribution device, after entering, is arranged on well head catcher on well head test strobe under tubing string.During operation, anti-flushing well, flushing fluid enters from oil jacket annular space, returns out from oil pipe, reaches the object of cleaning oil reservoir and tubing string.Just replace, acid solution enters from oil pipe, the stoste in oil pipe is replaced out.Oil pipe pitching, drops into valve ball from well head, and valve ball drops down onto in self-locking ball-and-seat, and and valve base sealing.Set, oil pipe is suppressed, and under pressure, self-locking ball-and-seat completes self-locking, and hydraulic anchor, expansion loop, hydraulic slip start, and last packer completes and sets.Acidifying lower floor, continue from oil pipe pressurization, after arriving certain pressure, level pressure injection well downhole flow regulator is opened, and acid solution enters oil jacket annular space by level pressure injection well downhole flow regulator exhalant canal, realizes lower floor's acidifying.Acidifying upper strata, in oil pipe, sealing pulling integrated device is dropped at well head, after pulling integrated device to be sealed falls position, hydraulic pressure is added in oil pipe, integration fuse shear pin is cut off and is divided into fuse and lower fuse two parts, acidifying water filling integrated water distribution device waterflood path is opened, and sealing pulling integrated device carries lower fuse and falls and shutoff level pressure injection well downhole flow regulator waterflood path, and acid solution enters oil jacket annular space by acidifying water filling integrated water distribution device waterflood path and realizes upper strata acidifying.Anti-row, oil jacket annular space is suppressed, and the well-flushing passage of flushing fluid successively along packer at different levels is downward by oil jacket annular space, flushing fluid enters packer with lower floor position, enter through self-locking ball-and-seat, upwards enter oil pipe and return out, reach the object that acid solution returns row and recoil sealing pulling integrated device.After the row of returning terminates, if sealing pulling integrated device is not caught by well head catcher, be with down-hole catcher to catch sealing pulling integrated device under can entering down wire rope, once pull the upper and lower part of sealing pulling integrated device and integrated fuse out, realize upper and lower two-layer layering and inject completion.
The foregoing is only preferred embodiment of the present utility model, be not used to limit the scope of the claims of the present utility model, other use the equivalence of patent spirit of the present utility model to change, and all should all belong to the scope of the claims of the present utility model.
Claims (6)
1. one kind can realize the multi-functional tubing string of separate layer acid treatment, seperated layer water injection, comprise oil pipe, it is characterized in that, described oil pipe is arranged acidifying water filling integrated water distribution device, upper high pressure well packer capable of flushing well, lower high pressure well packer capable of flushing well, wherein goes up high pressure well packer capable of flushing well, upper and lower position that lower high pressure well packer capable of flushing well lays respectively at acidifying water filling integrated water distribution device.
2. a kind of multi-functional tubing string realizing separate layer acid treatment, seperated layer water injection according to claim 1, is characterized in that, described oil pipe is also provided with level pressure injection well downhole flow regulator, and described level pressure injection well downhole flow regulator is positioned at below lower high pressure well packer capable of flushing well.
3. a kind of multi-functional tubing string realizing separate layer acid treatment, seperated layer water injection according to claim 2, is characterized in that, described oil pipe is also provided with hydraulic slip, and described hydraulic slip is between level pressure injection well downhole flow regulator and lower high pressure well packer capable of flushing well.
4. a kind of multi-functional tubing string realizing separate layer acid treatment, seperated layer water injection according to claim 1, is characterized in that, the bottom of described oil pipe is provided with self-locking ball-and-seat, and this valve is positioned at the below of level pressure injection well downhole flow regulator.
5. a kind of multi-functional tubing string realizing separate layer acid treatment, seperated layer water injection according to claim 1, is characterized in that, described oil pipe is also provided with expansion loop, and described expansion loop is positioned at the top of high pressure well packer capable of flushing well.
6. a kind of multi-functional tubing string realizing separate layer acid treatment, seperated layer water injection according to claim 5, is characterized in that, described oil pipe is also provided with hydraulic anchor, and described hydraulic anchor is between expansion loop and upper high pressure well packer capable of flushing well.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420702095.7U CN204267005U (en) | 2014-11-20 | 2014-11-20 | A kind of multi-functional tubing string realizing separate layer acid treatment, seperated layer water injection |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420702095.7U CN204267005U (en) | 2014-11-20 | 2014-11-20 | A kind of multi-functional tubing string realizing separate layer acid treatment, seperated layer water injection |
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| CN204267005U true CN204267005U (en) | 2015-04-15 |
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| CN201420702095.7U Expired - Fee Related CN204267005U (en) | 2014-11-20 | 2014-11-20 | A kind of multi-functional tubing string realizing separate layer acid treatment, seperated layer water injection |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106567697A (en) * | 2015-10-13 | 2017-04-19 | 中国石油天然气股份有限公司 | Adjusting and distributing device |
| CN106939784A (en) * | 2017-01-13 | 2017-07-11 | 上海全泽能源科技有限公司 | The positioning acidizing device of stratified injection well |
| CN107762458A (en) * | 2016-08-16 | 2018-03-06 | 中国石油天然气股份有限公司 | Concentric separated-injection and small displacement acidifying integral system and technique |
| CN109386265A (en) * | 2017-08-02 | 2019-02-26 | 中国石油化工股份有限公司 | Separate layer acid treatment and seperated layer water injection, which are surveyed, adjusts integrated multi-functional tubing string |
| CN109681162A (en) * | 2018-04-19 | 2019-04-26 | 中国石油化工股份有限公司 | Anchoring compensation layered water injection method and equipment |
| CN110500079A (en) * | 2019-09-19 | 2019-11-26 | 中国石油化工股份有限公司 | More formation acidizing water injection strings |
| CN110578501A (en) * | 2019-09-19 | 2019-12-17 | 中国石油化工股份有限公司 | Multi-stratum layer-by-layer acidification and layered water injection method |
-
2014
- 2014-11-20 CN CN201420702095.7U patent/CN204267005U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106567697A (en) * | 2015-10-13 | 2017-04-19 | 中国石油天然气股份有限公司 | Adjusting and distributing device |
| CN107762458A (en) * | 2016-08-16 | 2018-03-06 | 中国石油天然气股份有限公司 | Concentric separated-injection and small displacement acidifying integral system and technique |
| CN106939784A (en) * | 2017-01-13 | 2017-07-11 | 上海全泽能源科技有限公司 | The positioning acidizing device of stratified injection well |
| CN109386265A (en) * | 2017-08-02 | 2019-02-26 | 中国石油化工股份有限公司 | Separate layer acid treatment and seperated layer water injection, which are surveyed, adjusts integrated multi-functional tubing string |
| CN109386265B (en) * | 2017-08-02 | 2023-07-11 | 中国石油化工股份有限公司 | Multi-functional tubular column of layering acidizing and layering water injection survey and adjustment integration |
| CN109681162A (en) * | 2018-04-19 | 2019-04-26 | 中国石油化工股份有限公司 | Anchoring compensation layered water injection method and equipment |
| CN110500079A (en) * | 2019-09-19 | 2019-11-26 | 中国石油化工股份有限公司 | More formation acidizing water injection strings |
| CN110578501A (en) * | 2019-09-19 | 2019-12-17 | 中国石油化工股份有限公司 | Multi-stratum layer-by-layer acidification and layered water injection method |
| CN110578501B (en) * | 2019-09-19 | 2021-04-13 | 中国石油化工股份有限公司 | Multi-stratum layer-by-layer acidification and layered water injection method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150415 Termination date: 20181120 |