CN203756146U - Sleeve protecting setting water injection integrated pipe column - Google Patents
Sleeve protecting setting water injection integrated pipe column Download PDFInfo
- Publication number
- CN203756146U CN203756146U CN201420016016.7U CN201420016016U CN203756146U CN 203756146 U CN203756146 U CN 203756146U CN 201420016016 U CN201420016016 U CN 201420016016U CN 203756146 U CN203756146 U CN 203756146U
- Authority
- CN
- China
- Prior art keywords
- oil pipe
- packer
- water injection
- flow regulator
- water
- Prior art date
Links
- 238000002347 injection Methods 0.000 title claims abstract description 49
- 239000007924 injections Substances 0.000 title claims abstract description 49
- 239000011901 water Substances 0.000 title claims abstract description 40
- 239000003921 oils Substances 0.000 claims abstract description 34
- 238000007789 sealing Methods 0.000 abstract description 6
- 230000002035 prolonged Effects 0.000 abstract 2
- 239000010410 layers Substances 0.000 description 5
- 101710013168 FLK Proteins 0.000 description 3
- 241000935974 Paralichthys dentatus Species 0.000 description 3
- 238000005516 engineering processes Methods 0.000 description 3
- 230000001771 impaired Effects 0.000 description 2
- 230000001629 suppression Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007788 liquids Substances 0.000 description 1
- 238000000034 methods Methods 0.000 description 1
- 230000000087 stabilizing Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Abstract
Description
Technical field
The utility model relates to water injection well in oil fields tubing string, and specifically casing protection sets water injection integral pipe column.
Background technology
Conventional card envelope separate layer water injection string is found in application process at the scene, on the one hand, for casing protection tubing string upper end packer, the string creep causing due to underground water-injection pressure oscillation, easily make packing element impaired, the sealing that reduces packer, shortens its application life, greatly reduces the period of validity of tubing string; On the other hand, because conventional water-distributing tool need to be with dead fuse and go into the well, packer suppress set complete after, need to pull dead fuse out, could realize water filling, later stage operational administrative is cumbersome.
Summary of the invention
The purpose of this utility model is to provide casing protection to set water injection integral pipe column, and balance tubing string is stressed has reduced the impact of string creep on packing element sealing performance; Set water filling integrated design, without the dead fuse of pulling, execute-in-place is simple.
In order to reach above-mentioned purpose; the utility model has adopted following technical scheme; casing protection sets water injection integral pipe column; comprise oil pipe and be connected to packer, the injection well downhole flow regulator on oil pipe; described packer is connected to the annular space position between oil pipe and the sleeve pipe above injection well downhole flow regulator, and described injection well downhole flow regulator and oil pipe coaxial formula link into an integrated entity.
Also include end ball, ball of the described end is connected to oil pipe bottom.
On the oil pipe of described packer top, be also connected with hydraulic anchor.
The packer and the injection well downhole flow regulator that on described oil pipe, connect successively are mutually connected with upper and lower two covers altogether as a unit.
Packer in described upper and lower two cover unit is respectively upper packer, lower packet, and injection well downhole flow regulator is respectively the injection well downhole flow regulator that gets on the right track, lower railway injection well downhole flow regulator.
Compared to prior art, the utlity model has following beneficial effect:
Improve the sealing reliability of packer, extended the application life of card sealing pipe column, by extending to present average 1.5 years original average half a year; Set water filling integrated design and make execute-in-place simpler, increase work efficiency, reduce working strength.Being mainly used in high-pressure water injection well and water filling layer upper end borehole wall sleeve pipe has in the separate water injection well of the impaired or leakage phenomena of certain corrosion.
Brief description of the drawings
Fig. 1 is the structural representation that casing protection of the present utility model sets water injection integral pipe column.
In figure: 1-hydraulic anchor; 2-upper packer; 3-injection well downhole flow regulator gets on the right track; 4-lower packet; 5-lower railway injection well downhole flow regulator; 6-end ball.
Detailed description of the invention
Relevant detailed description of the present utility model and technology contents, coordinate brief description of the drawings as follows, but accompanying drawing only provides the use of reference with explanation, is not used for the utility model to be limited.
As shown in Figure 1; casing protection sets water injection integral pipe column; end ball 6 is connected with lower railway injection well downhole flow regulator 5 by oil pipe; lower railway injection well downhole flow regulator 5 is connected with lower packet 4 by oil pipe; lower packet 4 is connected with the injection well downhole flow regulator 3 that gets on the right track by oil pipe; the injection well downhole flow regulator 3 that gets on the right track is connected with upper packer 2 by oil pipe, and upper packer 2 is directly connected with hydraulic anchor 1, on hydraulic anchor 1, is connected to well head with oil pipe.
The course of work:
Go into the well, in sleeve pipe, liquid flows to upper in oil pipe by end ball, forms oil jacket and is communicated with.
Set, well mouth oil pipe gate is suppressed, and 0.5MPa hydraulic anchor struts with internal surface of sleeve pipe and contacts, and 8MPa packer is cut off and set shear pin and start to push packing element, and 12MPa track injection well downhole flow regulator enters short track, and voltage stabilizing 3min when 20MPa, sets packer completely.
Water filling, after packer setting, oil pipe pressure release hydraulic anchor anchor fluke is regained, packing element is close to sleeve pipe and is not regained, and still in compressive state, injection well downhole flow regulator commutation enters long track, when oil pipe is suppressed again, hydraulic anchor anchor fluke struts, injection well downhole flow regulator water outlet, and a whole set of water injection technology forms grappling card envelope separate layer water injection string.
Anti-flushing well, water enters oil jacket annular space, and hydraulic anchor anchor fluke is regained, and injection well downhole flow regulator spring promotes piston and closes its weep hole, and packer well-washing passage is opened, and passage is crossed water and is returned out to well head from oil pipe through end ball.
When test, be lowered to the actual water injection rate that flow meter just can record each layer between injection well downhole flow regulators at different levels; When allotment, the size of changing water nozzle by pulling water distributing core just can regulate each layer of water injection rate.
The foregoing is only preferred embodiment of the present utility model, non-in order 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 (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420016016.7U CN203756146U (en) | 2014-01-11 | 2014-01-11 | Sleeve protecting setting water injection integrated pipe column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420016016.7U CN203756146U (en) | 2014-01-11 | 2014-01-11 | Sleeve protecting setting water injection integrated pipe column |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203756146U true CN203756146U (en) | 2014-08-06 |
Family
ID=51251433
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420016016.7U CN203756146U (en) | 2014-01-11 | 2014-01-11 | Sleeve protecting setting water injection integrated pipe column |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203756146U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105569622A (en) * | 2014-11-10 | 2016-05-11 | 中国石油化工股份有限公司 | Underground layering pressure-regulating water injection process pipe string |
| CN108035702A (en) * | 2017-12-29 | 2018-05-15 | 中国石油大学(华东) | A kind of dismantled and assembled casing protection sets water injection string and structural optimization method |
| CN108222905A (en) * | 2017-12-29 | 2018-06-29 | 中国石油大学(华东) | Three layers of double pressure regulation water injection technological strings and regulator optimization method |
| CN108240207A (en) * | 2016-12-23 | 2018-07-03 | 中国石油天然气股份有限公司 | The seperated layer water injection injection well downhole flow regulator and method of self-balancing |
| CN108374653A (en) * | 2018-02-01 | 2018-08-07 | 中国石油大学(华东) | A kind of multi-functional water injection string and pressure testing method and pressure measurement short |
-
2014
- 2014-01-11 CN CN201420016016.7U patent/CN203756146U/en not_active IP Right Cessation
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105569622A (en) * | 2014-11-10 | 2016-05-11 | 中国石油化工股份有限公司 | Underground layering pressure-regulating water injection process pipe string |
| CN108240207A (en) * | 2016-12-23 | 2018-07-03 | 中国石油天然气股份有限公司 | The seperated layer water injection injection well downhole flow regulator and method of self-balancing |
| CN108240207B (en) * | 2016-12-23 | 2020-05-08 | 中国石油天然气股份有限公司 | Self-balancing stratified water injection water distributor and method |
| CN108035702A (en) * | 2017-12-29 | 2018-05-15 | 中国石油大学(华东) | A kind of dismantled and assembled casing protection sets water injection string and structural optimization method |
| CN108222905A (en) * | 2017-12-29 | 2018-06-29 | 中国石油大学(华东) | Three layers of double pressure regulation water injection technological strings and regulator optimization method |
| CN108374653A (en) * | 2018-02-01 | 2018-08-07 | 中国石油大学(华东) | A kind of multi-functional water injection string and pressure testing method and pressure measurement short |
| CN108374653B (en) * | 2018-02-01 | 2020-09-18 | 中国石油大学(华东) | Multifunctional water injection pipe column, pressure measuring method and pressure measuring nipple |
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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: 20140806 Termination date: 20180111 |