CN205638268U - Divide compensator for water injection well - Google Patents

Divide compensator for water injection well Download PDF

Info

Publication number
CN205638268U
CN205638268U CN201620405903.2U CN201620405903U CN205638268U CN 205638268 U CN205638268 U CN 205638268U CN 201620405903 U CN201620405903 U CN 201620405903U CN 205638268 U CN205638268 U CN 205638268U
Authority
CN
China
Prior art keywords
sealing ring
wall
top connection
water injection
compensator
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Fee Related
Application number
CN201620405903.2U
Other languages
Chinese (zh)
Inventor
吴庆莉
王振
刘涛
刘颖
汤屏邦
瞿瑞松
田蜜
王利民
王丽莉
靳海龙
赵艳秋
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Liaohe Petroleum Exploration Bureau
Original Assignee
Liaohe Petroleum Exploration Bureau
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.)
Filing date
Publication date
Application filed by Liaohe Petroleum Exploration Bureau filed Critical Liaohe Petroleum Exploration Bureau
Priority to CN201620405903.2U priority Critical patent/CN205638268U/en
Application granted granted Critical
Publication of CN205638268U publication Critical patent/CN205638268U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The utility model relates to an oil extracting worker journey layering water injection technology field, in particular to divide compensator for water injection well. The cover is equipped with the sealing ring in the device's the top connection, and sealed through installing at the inboard sealing washer of sealing ring between top connection and the sealing ring, end screw thread connection is on the sealing ring outer wall on the hydraulic cylinder, and hydraulic cylinder lower extreme and outer wall of the lower joint threaded connection are equipped with spacing step on the outer wall of top connection upper end, and threaded connection has a cap fully on the top connection lower extreme outer wall, the sealing ring can spacing step with be equipped with between the cap along the removal of top connection outer wall. The utility model discloses a simple structure, convenient operation, it is flexible to compensate oil pipe length, prevents oil pipe's flexible injury to lower part tubular column cluster, the security that improves the seperated layer water injection work progress. It is complicated to have overcome current water injection pipe compensator structure, operates inconvenient not enoughly.

Description

A kind of dispensing well compensator
Technical field:
This utility model relates to petroleum production engineering separate zone waterflooding technology field, mends particularly to a kind of dispensing well Repay device.
Background technology:
Liaohe Oil Field has high-pressure water injection well more than 300 mouth at present, accounts for the 8% of water injection well sum.Because interlayer pressure difference is big, Water filling or stop the reasons such as note and easily cause tubing string and elongate or shorten, causes separate injection tubing string to lose efficacy.Existing water injection pipe Compensator structure is complicated, inconvenient operation.
Utility model content:
The technical problems to be solved in the utility model is to provide a kind of dispensing well compensator, and this device realizes Simple in construction, easy to operate, it is possible to compensate tubing length and stretch, prevent the flexible to bottom tubing string of oil pipe The injury of string, improves the safety of seperated layer water injection work progress.Overcome existing compensator for water injection pipe structure multiple Miscellaneous, the deficiency of inconvenient operation.
Technical solution adopted in the utility model is: a kind of dispensing well compensator, including top connection and under Joint;Sealing ring it is set with, by being arranged on inside sealing ring between top connection and sealing ring in top connection Sealing ring seals, and fluid cylinder threaded upper ends is connected on sealing ring outer wall, fluid cylinder lower end and lower contact outer wall thread Connecting, top connection upper end outer wall is provided with limited step, and threaded on top connection lower end outer wall have standby cap, Sealing ring can move along top connection outer wall between limited step and standby cap.
The beneficial effects of the utility model are: this utility model simple in construction, easy to operate, it is possible to compensate oil Length of tube stretches, and prevents the flexible injury to bottom tubing string string of oil pipe, improves seperated layer water injection work progress Safety.
Accompanying drawing illustrates:
The utility model is described in more detail with detailed description of the invention below in conjunction with the accompanying drawings.
Fig. 1 is structural representation of the present utility model.
Detailed description of the invention:
As it is shown in figure 1, a kind of dispensing well compensator, including top connection 1 and lower contact 5;Top connection 1 On be set with sealing ring 2, by being arranged on the sealing ring inside sealing ring 2 between top connection 1 and sealing ring 2 Sealing, fluid cylinder 3 threaded upper ends is connected on sealing ring 2 outer wall, fluid cylinder 3 lower end and lower contact 5 outer wall spiral shell Stricture of vagina connects, and top connection 1 upper end outer wall is provided with limited step, and threaded on top connection 1 lower end outer wall have Standby cap 4, sealing ring 2 can move along top connection 1 outer wall between limited step and standby cap 4.
When tubing string stretches, sealing ring 2, fluid cylinder 3 are integrated with lower contact 5, can be in the limit of top connection 1 Slide between position step and standby cap 4, play compensating action.
It is understood that above with respect to specific descriptions of the present utility model, be merely to illustrate this utility model And it being not limited to the technical scheme described by this utility model embodiment, those of ordinary skill in the art should Work as understanding, still this utility model can be modified or equivalent, to reach identical technique effect; Needs are used, all within protection domain of the present utility model as long as meeting.

Claims (1)

1. a dispensing well compensator, including top connection (1) and lower contact (5);It is characterized in that: Sealing ring (2) it is set with, by being arranged between top connection (1) and sealing ring (2) in top connection (1) The sealing ring of sealing ring (2) inner side seals, and fluid cylinder (3) threaded upper ends is connected on sealing ring (2) outer wall, Fluid cylinder (3) lower end is connected with lower contact (5) outer wall thread, and top connection (1) upper end outer wall is provided with spacing Step, threaded on top connection (1) lower end outer wall have standby cap (4), and sealing ring (2) can be at limiting stand Move along top connection (1) outer wall between rank and standby cap (4).
CN201620405903.2U 2016-05-06 2016-05-06 Divide compensator for water injection well Expired - Fee Related CN205638268U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201620405903.2U CN205638268U (en) 2016-05-06 2016-05-06 Divide compensator for water injection well

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201620405903.2U CN205638268U (en) 2016-05-06 2016-05-06 Divide compensator for water injection well

Publications (1)

Publication Number Publication Date
CN205638268U true CN205638268U (en) 2016-10-12

Family

ID=57050466

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201620405903.2U Expired - Fee Related CN205638268U (en) 2016-05-06 2016-05-06 Divide compensator for water injection well

Country Status (1)

Country Link
CN (1) CN205638268U (en)

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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: 20161012

Termination date: 20170506