CN202628032U - Oil sleeve annulus injection valve - Google Patents

Oil sleeve annulus injection valve Download PDF

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Publication number
CN202628032U
CN202628032U CN 201220201584 CN201220201584U CN202628032U CN 202628032 U CN202628032 U CN 202628032U CN 201220201584 CN201220201584 CN 201220201584 CN 201220201584 U CN201220201584 U CN 201220201584U CN 202628032 U CN202628032 U CN 202628032U
Authority
CN
China
Prior art keywords
pipe
injection valve
outer tube
valve
interior pipe
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 - Lifetime
Application number
CN 201220201584
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Chinese (zh)
Inventor
魏萍
肖博仁
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.)
BEIJING BAIWEN HENGXIN ENERGY SERVICE Co Ltd
Original Assignee
BEIJING BAIWEN HENGXIN ENERGY SERVICE Co Ltd
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 BEIJING BAIWEN HENGXIN ENERGY SERVICE Co Ltd filed Critical BEIJING BAIWEN HENGXIN ENERGY SERVICE Co Ltd
Priority to CN 201220201584 priority Critical patent/CN202628032U/en
Application granted granted Critical
Publication of CN202628032U publication Critical patent/CN202628032U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

An oil sleeve annulus injection valve comprises an upper connector, an outer pipe, an inner pipe, a valve ball, a valve seat, a drainage pipe and a lower connector. The upper connector is sequentially connected with the outer pipe and the lower connector, the inner pipe is connected with an outer cavity of the outer pipe, the lower portion of the inner pipe is sequentially connected with the valve seat and the drainage pipe, the valve ball is installed on the valve seat, and communicated liquid flow through holes are arranged on the outer pipe and the inner pipe. The oil sleeve annulus injection valve has the advantages of being small in outer diameter, large in nominal diameter of liquid flow, strong in liquid flow passing capacity and anti-erosion capacity, small in inner movable parts, capable of effectively avoiding sticking phenomenon, free of extra control method, long in service life and convenient and simple in on-site operation, and is widely applied to underground operation technology for petroleum mining. In addition, stability and reliability of a working state of a switch can be achieved along with the flow direction of the liquid flow.

Description

Oil jacket annular space injection valve
Technical field
The utility model relates to the downhole tool that oil exploitation is used, particularly a kind of oil jacket annular space injection valve.
Background technology
In the oil exploitation, particularly when offshore oil gas well and water injection well operation completion,, guarantee production safety, usually supporting use packer on the operation completion tubular column for sealing oil jacket annular space.The down-hole kit of this structure; For effect has been brought into play in supporting use on the operation completion tubular column of oil well; But it exists following shortcoming or deficiency simultaneously: if 1. in process of production need through the oil jacket annular space inject liquid (as same-well injection adopt, water injection well) time; Then need use the supporting outlet valve of cable-passing packer to realize connectivity capabilities, supporting operation is many; 2. through hydraulic control open and close state, its structure design is mainly used in the free gas that oil well discharges the oil jacket annular space to outlet valve by liquid controling pipe line, when being used to inject water or other chemical agent, problems such as erosion, fouling, sticking card takes place easily; 3. application life shorter, have bigger inefficacy and security risk; 4. external diameter is big, and the flow latus rectum is little, flow handling capacity and erosion ability.
Summary of the invention
The purpose of the utility model provides a kind of oil jacket annular space injection valve, adopts inner and outer pipes bridge-type connectivity structure, the shortcoming or the deficiency that overcome effectively or avoid existing in the above-mentioned prior art.
The described oil jacket annular space of the utility model injection valve comprises top connection, outer tube, interior pipe, valve ball, valve seat, drainage tube, lower contact.Said top connection is connected with outer tube, lower contact in order, and outer tube bore is installed and is connected with interior pipe, is connected with valve seat, drainage tube in order under the interior pipe, and valve ball is sat idly on valve seat, and outer tube is provided with the flow through hole that is communicated with interior pipe.
Wherein, said interior pipe is provided with the flow through hole that is communicated with the middle part of outer tube, and interior pipe is connected as a single entity in the flow through hole that is communicated with outer tube, and constitutes the catwalk.Be provided with the annular drainage channel of up/down perforation in said between pipe, drainage tube and the outer tube.The junction of said top connection, valve seat, lower contact is provided with sealing ring.The junction of said top connection, outer tube, lower contact is provided with check pin.The top of pipe is a blind hole structure in said.The lower end of said lower contact is a blind hole structure.
The utility model has following advantage compared with prior art:
1. external diameter is little, and the flow latus rectum is big, and flow handling capacity and erosion ability are strong;
2. the internal motion parts are few, can effectively avoid sticking card phenomenon to take place;
3. need not extra control mode, flow to flow and can realize switch;
4. stable working state is reliable, long service life, and execute-in-place is easy.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is for pressing A-A shown in Figure 1 to structural representation.
The specific embodiment
Consult Fig. 1-Fig. 2, a kind of oil jacket annular space injection valve comprises top connection 1, outer tube 4, interior pipe 5, valve ball 6, valve seat 7, drainage tube 8, lower contact 9.Top connection 1 is connected with outer tube 4, lower contact 9 in order, pipe 5 in outer tube 4 inner chambers are installed and are connected with, and interior pipe is connected with valve seat 7, drainage tube 8 for 5 times in order, and valve ball 6 is sat idly on valve seat 7, and outer tube 4 is provided with the flow through hole that is communicated with interior pipe 5.
In pipe 5 be provided with the flow through hole that is communicated with the middle part of outer tube 4, interior pipe 5 is connected as a single entity in the flow through hole that is communicated with outer tube 4, and the formation catwalk.In be provided with the annular drainage channel of up/down perforation between the pipe 5, drainage tube 8 and outer tube 4.The junction of top connection 1, valve seat 7, lower contact 9 is provided with sealing ring 3.The junction of top connection 1, outer tube 4, lower contact 9 is provided with check pin 2.The top of interior pipe 5 is a blind hole structure.The lower end of lower contact 9 is a blind hole structure.
During application, when in well, injecting liquid from the oil jacket annular space, valve ball 6 is pushed away ball seat 7, is in opening, realizes the function of the upper and lower connection of packer.When stopping in well, injecting liquid from the oil jacket annular space, valve ball 6 falls to being back to ball seat 7, closing passage automatically.

Claims (7)

1. oil jacket annular space injection valve; Comprise top connection, outer tube, interior pipe, valve ball, valve seat, drainage tube, lower contact; It is characterized in that said top connection is connected with outer tube, lower contact in order, outer tube bore is installed and is connected with interior pipe, is connected with valve seat, drainage tube in order under the interior pipe; Valve ball is sat idly on valve seat, and outer tube is provided with the flow through hole that is communicated with interior pipe.
2. according to the said oil jacket annular space of claim 1 injection valve, it is characterized in that said interior pipe is provided with the flow through hole that is communicated with the middle part of outer tube, interior pipe is connected as a single entity in the flow through hole that is communicated with outer tube, and constitutes the catwalk.
3. according to the said oil jacket annular space of claim 1 injection valve, it is characterized in that being provided with between said interior pipe, drainage tube and the outer tube the annular drainage channel of up/down perforation.
4. according to the said oil jacket annular space of claim 1 injection valve, it is characterized in that the junction of said top connection, valve seat, lower contact, be provided with sealing ring.
5. according to the said oil jacket annular space of claim 1 injection valve, it is characterized in that the junction of said top connection, outer tube, lower contact, be provided with check pin.
6. according to the said oil jacket annular space of claim 1 injection valve, it is characterized in that the top of said interior pipe is a blind hole structure.
7. according to the said oil jacket annular space of claim 1 injection valve, the lower end that it is characterized in that said lower contact is a blind hole structure.
CN 201220201584 2012-05-08 2012-05-08 Oil sleeve annulus injection valve Expired - Lifetime CN202628032U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220201584 CN202628032U (en) 2012-05-08 2012-05-08 Oil sleeve annulus injection valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220201584 CN202628032U (en) 2012-05-08 2012-05-08 Oil sleeve annulus injection valve

Publications (1)

Publication Number Publication Date
CN202628032U true CN202628032U (en) 2012-12-26

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201220201584 Expired - Lifetime CN202628032U (en) 2012-05-08 2012-05-08 Oil sleeve annulus injection valve

Country Status (1)

Country Link
CN (1) CN202628032U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106468155A (en) * 2015-08-21 2017-03-01 中国石油化工股份有限公司 One kind no throttles one way entrapped water valve
CN111946314A (en) * 2019-05-15 2020-11-17 中国石油天然气股份有限公司 Injection and extraction control pipe column for thickened oil horizontal well

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106468155A (en) * 2015-08-21 2017-03-01 中国石油化工股份有限公司 One kind no throttles one way entrapped water valve
CN111946314A (en) * 2019-05-15 2020-11-17 中国石油天然气股份有限公司 Injection and extraction control pipe column for thickened oil horizontal well

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C14 Grant of patent or utility model
GR01 Patent grant
CX01 Expiry of patent term

Granted publication date: 20121226

CX01 Expiry of patent term