CN201915925U - Anti-creep separate-layer water injection string for directional well and deep well - Google Patents
Anti-creep separate-layer water injection string for directional well and deep well Download PDFInfo
- Publication number
- CN201915925U CN201915925U CN2010206854544U CN201020685454U CN201915925U CN 201915925 U CN201915925 U CN 201915925U CN 2010206854544 U CN2010206854544 U CN 2010206854544U CN 201020685454 U CN201020685454 U CN 201020685454U CN 201915925 U CN201915925 U CN 201915925U
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- oil pipe
- water injection
- well
- connects
- flow regulator
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- 238000002347 injection Methods 0.000 title claims abstract description 59
- 239000007924 injection Substances 0.000 title claims abstract description 59
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 44
- 230000006835 compression Effects 0.000 claims abstract description 21
- 238000007906 compression Methods 0.000 claims abstract description 21
- 229910052755 nonmetal Inorganic materials 0.000 claims abstract description 19
- 241000935974 Paralichthys dentatus Species 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 abstract description 4
- 239000003513 alkali Substances 0.000 abstract 1
- 238000004873 anchoring Methods 0.000 abstract 1
- 239000003129 oil well Substances 0.000 abstract 1
- 235000020681 well water Nutrition 0.000 abstract 1
- 230000006378 damage Effects 0.000 description 3
- 238000007689 inspection Methods 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000002332 oil field water Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000002277 temperature effect Effects 0.000 description 1
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Abstract
The anti-creep separate layer water injection pipe column for directional well and deep well is used in oil well water injection technology. The upper end of the bottom plug is connected with a sieve tube through an oil pipe, the upper end of the sieve tube is connected with a water injection circulating valve through an oil pipe, the upper end of the water injection circulating valve is connected with a lower water distributor through an oil pipe, the upper end of the lower water distributor is connected with a compression type packer through an oil pipe, the upper end of the compression type packer is connected with a water distributor through an oil pipe, the upper end of the upper water distributor is connected with a nonmetal hydraulic anchor through an oil pipe, the upper end of the nonmetal hydraulic anchor is connected with a. The tubing is connected to the wellhead at all times. The position of the compression packer is between the upper water injection layer and the lower water injection layer. The effect is as follows: the non-metal hydraulic anchor fluke core is integrally vulcanized by oil-resistant and acid-alkali-resistant rubber, and non-rigid contact is adopted between the fluke and the inner wall of the sleeve after anchoring, so that the sleeve cannot be damaged.
Description
Technical field
The utility model relates to oilfield water injection technology field, and particularly a kind of separate layer water injection string is that a kind of directional well and deep-well of being applicable to prevents to cause because of temperature effect, pressure effect the separate layer water injection string of water injection string wriggling.
Background technology
At present, state-owned oil field is at the different well ' s conditions type, develop multiple anticreep separate layer water injection string, adopt the metal hydraulic anchor more, sleeve pipe is caused the mechanical damage that to repair, while is along with the prolongation of water injection time, the perishable fouling of metal anchor fluke and sleeve pipe contact position is changed tubing string to the later stage and is caused great difficulty, even causes the later stage to pull out of hole, shorten the water injection well life-span, may cause that water injection well is scrapped, well pattern incompleteness, stratum voidage-injection imbalance.Therefore, the separate layer water injection string of existing band metal hydraulic anchor can not be used for directional well and deep-well.
The utility model content
The purpose of this utility model is: provide a kind of directional well and deep-well anticreep separate layer water injection string, prolong directional well and deep-well dispensing period of validity, satisfy the water injection well stratified injection water technology required in, when later stage inspection string can trip out tubing string smoothly, realize effective water filling, safety inspection string.
The technical solution adopted in the utility model is: the anticreep separate layer water injection string of directional well and deep-well, mainly by oil pipe, expansion loop, nonmetal hydraulic anchor, last injection well downhole flow regulator, compression packer, following injection well downhole flow regulator, the fill cycle valve, the stifled composition of the screen casing and the end, it is characterized in that: the lower end is that the end is stifled, stifled upper end connects screen casing by oil pipe at the end, the upper end of screen casing connects the fill cycle valve by oil pipe, the upper end of fill cycle valve connects injection well downhole flow regulator down by oil pipe, the upper end of following injection well downhole flow regulator connects compression packer by oil pipe, the upper end of compression packer connects by oil pipe goes up injection well downhole flow regulator, the upper end of last injection well downhole flow regulator connects nonmetal hydraulic anchor by oil pipe, the upper end of nonmetal hydraulic anchor connects expansion loop, and the expansion loop upper end connects oil pipe.Oil pipe is connected to well head always.The position of compression packer is between top water filling layer and bottom water filling layer.
Expansion loop, nonmetal hydraulic anchor, go up injection well downhole flow regulator, compression packer, injection well downhole flow regulator and fill cycle valve down, use be existing product.
The beneficial effects of the utility model: the anticreep separate layer water injection string of the utility model directional well and deep-well, adopt nonmetal hydraulic anchor, can prevent because of factor affecting such as temperature and pressure effect, water injection pressure fluctuations, cause the tubing string wriggling, prolong the period of validity of seperated layer water injection, improved waterflooding development effect.Adopt nonmetal hydraulic anchor, rubber anchor fluke fuse and internal surface of sleeve pipe can not cause mechanical damage to sleeve pipe after realizing grappling, and nonmetal waterpower grappling does not have injury to sleeve pipe, and the tubing string dispensing life-span is long.Adopt expansion loop effectively to solve tubing string telescopic variation amount, guarantee that the tubing string packer sealing is reliable, the seperated layer water injection of remaining valid.
Description of drawings
Fig. 1 is the utility model directional well and the anticreep separate layer water injection string structural profile of deep-well schematic diagram.
Among the figure, 1. oil pipe, 2. expansion loop, 3. nonmetal hydraulic anchor is 4. gone up injection well downhole flow regulator, 5. compression packer 6. descends injection well downhole flow regulator, 7. fill cycle valve, 8. screen casing, 9. the end stifled.
The specific embodiment
Embodiment 1: with a directional well and the anticreep separate layer water injection string of deep-well is example, and the utility model is described in further detail.
Consult Fig. 1.The anticreep separate layer water injection string of the utility model directional well and deep-well mainly is made up of oil pipe 1, expansion loop 2, nonmetal hydraulic anchor 3, last injection well downhole flow regulator 4, compression packer 5, following injection well downhole flow regulator 6, fill cycle valve 7, screen casing 8 and the end stifled 9.
The lower end is the end stifled 9, the upper end at the end stifled 9 is by oil pipe 1 screen casing 8 that is threaded, the upper end of screen casing 8 connects a fill cycle valve 7 by oil pipe 1, the upper end of fill cycle valve 7 connects a following injection well downhole flow regulator 6 by oil pipe 1, the upper end of following injection well downhole flow regulator 6 connects a compression packer 5 by oil pipe 1, the upper end of compression packer 5 connects one by oil pipe 1 and goes up injection well downhole flow regulator 4, the upper end of last injection well downhole flow regulator 4 connects a nonmetal hydraulic anchor 3 by oil pipe 1, the upper end of nonmetal hydraulic anchor 3 connects an expansion loop 2, and expansion loop 2 upper ends connect oil pipe 1.Oil pipe 1 is connected to well head always.The position of compression packer 5 is between top water filling layer and bottom water filling layer.
The work progress of summary directional well and the anticreep separate layer water injection string of deep-well.Consult Fig. 1.
A, running string: pipe string combination connects from bottom to up, and the while G.I.H.Before tubing string is gone into the well, in last injection well downhole flow regulator 4 and the following injection well downhole flow regulator 6 the stagnant water mouth is installed all.
B, tubing string set: tubing string is following behind the precalculated position according to design, and by pressurizeing in the oil pipe, nonmetal hydraulic anchor 3 struts and is anchored on the sleeve pipe, determines compression packer 5, sets, tubing string not pressure release of inside.Compression packer 5 packing elements set simultaneously, realize the purpose of layering card layer.
C, seperated layer water injection: be lowered to fishing tool by steel wire, pull the stagnant water mouth out,, reach geology injection allocation debugging allowable error scope, realize normal seperated layer water injection according to each target zone geology injection allocation amount allotment water yield.
D, well workover inspection string: compression packer 5 lost efficacy or development requires, in the time of need tripping out tubing string, and the well head pressure release, nonmetal hydraulic anchor 3 automatic drawing backs, upper lifting pipe post again, compression packer 5 deblockings play flowline and down-hole annex by root.
Claims (1)
1. directional well and the anticreep separate layer water injection string of deep-well, mainly by oil pipe (1), expansion loop (2), nonmetal hydraulic anchor (3), last injection well downhole flow regulator (4), compression packer (5), following injection well downhole flow regulator (6), fill cycle valve (7), the screen casing (8) and the end,, stifled (9) were formed, it is characterized in that: the lower end is the end stifled (9), the upper end at the end stifled (9) connects screen casing (8) by oil pipe (1), the upper end of screen casing (8) connects fill cycle valve (7) by oil pipe (1), the upper end of fill cycle valve (7) connects injection well downhole flow regulator (6) down by oil pipe (1), the upper end of following injection well downhole flow regulator (6) connects compression packer (5) by oil pipe (1), the upper end of compression packer (5) is by injection well downhole flow regulator (4) in oil pipe (1) connection, the upper end of last injection well downhole flow regulator (4) connects nonmetal hydraulic anchor (3) by oil pipe (1), the upper end of nonmetal hydraulic anchor (3) connects expansion loop (2), and expansion loop (2) upper end connects oil pipe (1); Oil pipe (1) is connected to well head always; The position of compression packer (5) is between top water filling layer and bottom water filling layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206854544U CN201915925U (en) | 2010-12-17 | 2010-12-17 | Anti-creep separate-layer water injection string for directional well and deep well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206854544U CN201915925U (en) | 2010-12-17 | 2010-12-17 | Anti-creep separate-layer water injection string for directional well and deep well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201915925U true CN201915925U (en) | 2011-08-03 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206854544U Expired - Lifetime CN201915925U (en) | 2010-12-17 | 2010-12-17 | Anti-creep separate-layer water injection string for directional well and deep well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201915925U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102268972A (en) * | 2011-08-04 | 2011-12-07 | 荆州市翔龙石油科技有限公司 | Method for preventing setting failure of packer resulted from creeping of pipe string |
| CN108547603A (en) * | 2018-02-28 | 2018-09-18 | 中国石油天然气股份有限公司 | Water injection and oil extraction integrated tubular column and water injection and oil extraction method |
| 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 |
-
2010
- 2010-12-17 CN CN2010206854544U patent/CN201915925U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102268972A (en) * | 2011-08-04 | 2011-12-07 | 荆州市翔龙石油科技有限公司 | Method for preventing setting failure of packer resulted from creeping of pipe string |
| CN108547603A (en) * | 2018-02-28 | 2018-09-18 | 中国石油天然气股份有限公司 | Water injection and oil extraction integrated tubular column and water injection and oil extraction method |
| CN108547603B (en) * | 2018-02-28 | 2021-03-30 | 中国石油天然气股份有限公司 | Water injection and oil extraction integrated tubular column and water injection and oil extraction method |
| 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 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110803 |
|
| CX01 | Expiry of patent term |