CN203515538U - Double-hanger gas well fracture well mouth - Google Patents
Double-hanger gas well fracture well mouth Download PDFInfo
- Publication number
- CN203515538U CN203515538U CN201320607164.1U CN201320607164U CN203515538U CN 203515538 U CN203515538 U CN 203515538U CN 201320607164 U CN201320607164 U CN 201320607164U CN 203515538 U CN203515538 U CN 203515538U
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- China
- Prior art keywords
- manual flat
- hanger
- flat valve
- way
- oil pipe
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Abstract
The utility model discloses a double-hanger gas well fracture well mouth designed for meeting the requirement of the size fracturing technology. The upper side, the lower side, the left side and the right side of a four-way part of the well mouth are provided with manual flat valves. The bottom end of the lower manual flat valve is connected with a middle oil pipe four-way part internally provided with an oil pipe hanger, the two sides of the oil pipe four-way part are provided with manual flat valves, the lower portion of the oil pipe four-way part is connected with a casing pipe four-way part internally provided with a casing pipe hanger, and the two sides of the casing pipe four-way part are provided with manual flat valves. Double hangers are adopted, a casing pipe is hung through the 41/2'casing pipe hanger, and large discharge capacity fracturing construction is achieved. Compared with an original 31/2' single hanger well mouth, the construction delivery capacity is greatly enhanced, the requirement of the size fracturing technology can be fully met, meanwhile, a 27/8' or 23/8' oil pipe hanger can be used for hanging an oil pipe, the requirement for later gas production of a small oil pipe is met, the limited problem of a common 31/2' single hanger well mouth can be effectively solved, and the reservoir stratum improvement and gas production can be carried out conveniently.
Description
Technical field
The utility model relates to a kind of pair of hanger gas well fracturing well head, belongs to oil gas field stimulation technology field.
Background technology
At present, volume fracturing technology is the agent technology of reservoir reconstruction, and discharge capacity requires high.And conventional gas well fracturing well head only has 3
1/
2" single hanger, cannot meet high flow rate operation requirement, has limited the enforcement of volume fracturing technique, has affected effective transformation of reservoir.
Summary of the invention
The purpose of this utility model is to provide a kind of pair of hanger gas well fracturing well head, to meet the requirement of volume fracturing technique.
Concrete technology contents of the present utility model is as follows:
The first manual flat valve bottom of this well head connects four-way, four-way one side connects the 3rd manual flat valve and the second manual flat valve successively, opposite side connects the 5th manual flat valve and the 6th manual flat valve successively, and four-way lower end connects the 7th manual flat valve and the 8th manual flat valve successively.Oil pipe four-way in the middle of manual flat valve bottom connects, in this four-way, be provided with boll-weevil hanger, four-way one side connects the tenth manual flat valve and the 9th manual flat valve successively, and opposite side connects the 11 manual flat valve and the 12 manual flat valve successively, four-way bottom splicing sleeve four-way.In four-way junction of casing, be provided with casing hanger, this four-way one side connects the 14 manual flat valve and the 15 manual flat valve successively, and opposite side connects the 15 manual flat valve and the 16 manual flat valve successively.
This well head adopts two hangers, and it adopts 4
1/
2" casing hanger suspension sleeve, large discharge capacity pressing crack construction, with original 3
1/
2" single hanger well head is compared, and operational discharge capacity significantly promotes, and can fully meet the requirement of volume fracturing technique.Meanwhile, can use 2 instead
7/
8" or 2
3/
8" boll-weevil hanger hangs oil pipe, meets the gas production requirement of later stage little oil pipe, can effectively solve conventional 3
1/
2" the limitation problem of single hanger well head, facilitates reservoir reconstruction and gas production.
Accompanying drawing explanation
Fig. 1 is two hanger gas well fracturing shaft collar schematic diagrames.
The specific embodiment
Embodiment:
With reference to Fig. 1, embodiment of the present utility model is further illustrated:
First manual flat valve 1 bottom of this well head connects four-way 4, four-way 4 one sides connect the 3rd manual flat valve 3 and the second manual flat valve 2 successively, opposite side connects the 5th manual flat valve 5 and the 6th manual flat valve 6 successively, and four-way 4 lower ends connect the 7th manual flat valve 7 and the 8th manual flat valve 8 successively.Oil pipe four-way 18 in the middle of manual flat valve 8 bottoms connect, in this four-way, be provided with boll-weevil hanger 17, four-way one side connects the tenth manual flat valve 10 and the 9th manual flat valve 9 successively, opposite side connects the 11 manual flat valve 11 and the 12 manual flat valve 12 successively, four-way bottom splicing sleeve four-way 20.In four-way junction of casing 20, be provided with casing hanger 19, this four-way one side connects the 14 manual flat valve 14 and the 15 manual flat valve 15 successively, and opposite side connects the 15 manual flat valve 15 and the 16 manual flat valve 16 successively.
During practical application, boll-weevil hanger 17 is taken out, change the wearing bush that latus rectum matches, to protect the hanger seat of oil pipe four-way 17 not to be washed destruction.Close the 14 manual flat valve 14 and the 15 manual flat valve 15, by 4
1/
2" sleeve pipe splicing sleeve hanger 19, is suspended in four-way junction of casing 20, at its underpart link standard or Simple casing head.On oil pipe four-way 18, hang 2
7/
8" or 2
3/
8" oil pipe, during gas production, takes out wearing bush, then is lowered to boll-weevil hanger 17, carries out gas production production.
At peach 2-12-5H well, adopt this well head to carry out volume fracturing test, during pressure break, adopt 4
1/
2" gas testing obtains the open-flow capacity of 1,280,000 side/days for oil pipe open hole packer, ten sections of transformations of successful dividing potential drop, at present, adopts 2
3/
8" oil pipe is produced steadily.
Claims (1)
1. two hanger gas well fracturing well heads, is characterized in that:
The first manual flat valve (1) bottom of this well head connects four-way (4), four-way (4) one sides connect the 3rd manual flat valve (3) and the second manual flat valve (2) successively, opposite side connects the 5th manual flat valve (5) and the 6th manual flat valve (6) successively, and four-way (4) lower end connects the 7th manual flat valve (7) and the 8th manual flat valve (8) successively; Oil pipe four-way (18) in the middle of manual flat valve (8) bottom connects, in this four-way, be provided with boll-weevil hanger (17), four-way one side connects the tenth manual flat valve (10) and the 9th manual flat valve (9) successively, opposite side connects the 11 manual flat valve (11) and the 12 manual flat valve (12) successively, four-way bottom splicing sleeve four-way (20); In four-way junction of casing (20), be provided with casing hanger (19), this four-way one side connects the 14 manual flat valve (14) and the 15 manual flat valve (15) successively, and opposite side connects the 15 manual flat valve (15) and the 16 manual flat valve (16) successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320607164.1U CN203515538U (en) | 2013-09-29 | 2013-09-29 | Double-hanger gas well fracture well mouth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320607164.1U CN203515538U (en) | 2013-09-29 | 2013-09-29 | Double-hanger gas well fracture well mouth |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203515538U true CN203515538U (en) | 2014-04-02 |
Family
ID=50374485
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320607164.1U Expired - Fee Related CN203515538U (en) | 2013-09-29 | 2013-09-29 | Double-hanger gas well fracture well mouth |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203515538U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104514536A (en) * | 2013-09-29 | 2015-04-15 | 中国石油天然气股份有限公司 | Double-hanger fracturing wellhead of gas well |
-
2013
- 2013-09-29 CN CN201320607164.1U patent/CN203515538U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104514536A (en) * | 2013-09-29 | 2015-04-15 | 中国石油天然气股份有限公司 | Double-hanger fracturing wellhead of gas well |
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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 |
Granted publication date: 20140402 Termination date: 20210929 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |