CN203756146U - Sleeve protecting setting water injection integrated pipe column - Google Patents

Sleeve protecting setting water injection integrated pipe column Download PDF

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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
Application number
CN201420016016.7U
Other languages
Chinese (zh)
Inventor
孙金峰
王宏万
马艳洁
王宁
李永康
张卫卫
唐高峰
李世文
崔玉海
Original Assignee
中国石油化工股份有限公司
中国石油化工股份有限公司胜利油田分公司采油工艺研究院
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 中国石油化工股份有限公司, 中国石油化工股份有限公司胜利油田分公司采油工艺研究院 filed Critical 中国石油化工股份有限公司
Priority to CN201420016016.7U priority Critical patent/CN203756146U/en
Application granted granted Critical
Publication of CN203756146U publication Critical patent/CN203756146U/en

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Abstract

The utility model discloses a sleeve protecting setting water injection integrated pipe column which comprises an oil pipe and packers connected to the oil pipe and water distributors. The packers are connected at the annular position between the oil pipe above the water distributors and a sleeve, and the water distributors are coaxially connected with the oil pipe to be a whole. The sleeve protecting setting water injection integrated pipe column further comprises a base ball, and the base ball is connected with the lowermost end of the oil pipe. The oil pipe above the packers is further connected with a hydraulic anchor. One packer and one water distributor sequentially connected with the oil pipe serve as a unit, and an upper unit and a lower unit are connected in total. The packers in the upper unit and the lower unit are respectively an upper packer and a lower packer, and the water distributors are respectively an upper track water distributor and a lower track water distributor. The sealing reliability of the packers is improved, the service life of the clamping sealing pipe column is prolonged and is prolonged to 1.5 years on average now from half a year originally, on-site operation is simpler due to setting water injection integrated design, working efficiency is improved, and working strength is reduced.

Description

Casing protection sets water injection integral pipe column

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)

1. casing protection sets water injection integral pipe column; it is characterized in that; 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.
2. casing protection according to claim 1 sets water injection integral pipe column, it is characterized in that, also includes end ball, and ball of the described end is connected to oil pipe bottom.
3. casing protection according to claim 1 sets water injection integral pipe column, it is characterized in that, on the oil pipe of described packer top, is also connected with hydraulic anchor.
4. casing protection according to claim 1 sets water injection integral pipe column, it is characterized in that, 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.
5. casing protection according to claim 4 sets water injection integral pipe column, it is characterized in that, the 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.
CN201420016016.7U 2014-01-11 2014-01-11 Sleeve protecting setting water injection integrated pipe column CN203756146U (en)

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

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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)

* Cited by examiner, † Cited by third party
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

Cited By (7)

* Cited by examiner, † Cited by third party
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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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