CN202970597U - Coal bed gas well head device - Google Patents
Coal bed gas well head device Download PDFInfo
- Publication number
- CN202970597U CN202970597U CN 201320003752 CN201320003752U CN202970597U CN 202970597 U CN202970597 U CN 202970597U CN 201320003752 CN201320003752 CN 201320003752 CN 201320003752 U CN201320003752 U CN 201320003752U CN 202970597 U CN202970597 U CN 202970597U
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- pipe
- oil
- oil pipe
- horizontal
- coal bed
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- Expired - Fee Related
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Abstract
The utility model discloses a coal bed gas well head device. The coal bed gas well head device mainly aims at solving the problems that a common oil extraction well has a plurality of oil jacket sealing leaking points, a steel casting structure has defects and the weight is great. The coal bed gas well head device comprises an upright oil pipe. The upper end of the upright oil pipe is in threaded connection with a well mouth deviation adjusting device, and the lower end of the upright oil pipe is in threaded connection with an oil hanging pipe. The upright oil pipe is connected with a horizontal oil pipe in a sealing mode. The horizontal oil pipe is in threaded connection with an oil pipe valve group. The oil hanging pipe is connected with an upper flange in a sealing mode. The upper flange is in bolted connection with a lower flange through a rigidity sealing element. The lower flange is connected with an upright casing pipe in a sealing mode. The upright casing pipe is connected with a left horizontal casing pipe and a right horizontal casing pipe in a sealing mode. The horizontal casing pipe arranged at the left side is in threaded connection with a pressure taking pipeline and the horizontal casing pipe arranged at the right side is in threaded connection with a casing pipe valve group. In the coal bed gas well head device, the oil hanging pipe is integrally welded with the upper flange to reduce the leaking points of a top thread opening, so that the oil jacket sealing is more reliable. In the design of a small tee joint and a big four-way joint, an oil pipe welding structure is used. The structure that an oil pipe thread is directly connected with a valve is safer and more reliable than a cast structure, and therefore the coal bed gas well head device is light in weight and convenient to install and maintain.
Description
Technical field
The utility model relates to a kind of wellhead assembly in oil extraction in oil field field, is specifically related to a kind of coal bed gas wellhead device.
Background technology
Pumping production well head device is the visual plant that recovers the oil, existing pumping production well head is mainly by lower flange, big four, upper flange, little four-way, valve, wax removal valve and blowout prevention box form, tubing hanger is by the tubing hanger jackscrew, jackscrew pressure cap and packing form, oil jacket seal leak point is many, and the steel-casting weight such as big four are large, often has the defectives such as sand holes slag inclusion.
Summary of the invention
Exist oil jacket sealing leak source many in order to solve common production wellhead, the steel-casting fault of construction, the problem that weight is large the utility model proposes a kind of coal bed gas wellhead device, by adopting change structure.The employing Type of Welding addresses the above problem.
The technical solution of the utility model is: a kind of coal bed gas wellhead device comprises vertical oil pipe, the vertical oil pipe upper end deflection-regulating device of well head that is threaded, the vertical oil pipe lower end oily hanging tube that is threaded, vertical oil pipe and horizontal oil pipe are tightly connected, horizontal tubing round thread connected pipes valve group, the oil hanging tube upper flange that is tightly connected, upper flange connects lower flange by hard potted component bolt, the lower flange vertical sleeve pipe that is tightly connected, vertical sleeve pipe is connected with the horizontal bobbin seal in two of left and right, the horizontal casing threads on the left side connects pressure pipeline, the horizontal casing threads adapter sleeve pipe valve group on the right side.
the utlity model has following beneficial effect: adopt oily hanging tube to catch up with flange whole welding type structure, tubing hanger and tubing hanger jackscrew have been deducted, jackscrew pressure cap and packing, the design of this structure has reduced the leakage points of jackscrew mouth, the oil jacket sealing is more reliable, deduct the oil jacket sealed packing and changed work flow, reduced the user job expense, this lightweight construction, convenient for installation and maintenance, in mini three links and big four design, adopt the oil pipe welded construction, tubing round thread is directly with the valve syndeton, than cast structure safety and reliability, and lightweight, facilitate installation and maintenance.
Description of drawings:
Accompanying drawing 1 is structural representation of the present utility model.
In figure 1, deflection-regulating device of well head; 2, vertical oil pipe; 3, horizontal oil pipe; 4, the tubing valve group; 5, oily hanging tube; 6, upper flange; 7, lower flange; 8, the pressure pipeline; 9, horizontal sleeve pipe; 10, vertical sleeve pipe; 11, the casing valve group.
The specific embodiment:
The utility model is described in further detail below in conjunction with accompanying drawing:
By shown in Figure 1, a kind of coal bed gas wellhead device, comprise vertical oil pipe 2, the vertical oil pipe 2 upper ends deflection-regulating device of well head 1 that is threaded, the vertical oil pipe 2 lower ends oily hanging tube 5 that is threaded, vertical oil pipe 2 is tightly connected with horizontal oil pipe 3, the horizontal oil pipe 3 tubing valve group 4 that is threaded, oil hanging tube 5 upper flange 6 that is tightly connected, upper flange 6 connects lower flange 7 by hard potted component bolt, and lower flange 7 is tightly connected and founds sleeve pipe 10, and vertical sleeve pipe 10 is tightly connected with the horizontal sleeve pipe 9 in two of left and right, the horizontal sleeve pipe 9 on the left side pressure pipeline 8 that is threaded, the horizontal sleeve pipe 9 threaded connecting sleeve pipe valve groups 11 on the right side.
Claims (1)
1. coal bed gas wellhead device, comprise vertical oil pipe (2), it is characterized in that: vertical oil pipe (2) the upper end deflection-regulating device of well head (1) that is threaded, vertical oil pipe (2) the lower end oily hanging tube (5) that is threaded, vertical oil pipe (2) is tightly connected with horizontal oil pipe (3), horizontal oil pipe (3) the tubing valve group (4) that is threaded, oil hanging tube (5) upper flange (6) that is tightly connected, upper flange (6) connects lower flange (7) by hard potted component bolt, lower flange (7) the vertical sleeve pipe (10) that is tightly connected, vertical sleeve pipe (10) is tightly connected with two the horizontal sleeve pipes in left and right (9), the horizontal sleeve pipe (9) on the left side pressure pipeline (8) that is threaded, horizontal sleeve pipe (9) the threaded connecting sleeve pipe valve group (11) on the right side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320003752 CN202970597U (en) | 2013-01-05 | 2013-01-05 | Coal bed gas well head device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320003752 CN202970597U (en) | 2013-01-05 | 2013-01-05 | Coal bed gas well head device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202970597U true CN202970597U (en) | 2013-06-05 |
Family
ID=48511684
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320003752 Expired - Fee Related CN202970597U (en) | 2013-01-05 | 2013-01-05 | Coal bed gas well head device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202970597U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106522894A (en) * | 2017-01-06 | 2017-03-22 | 盐城华亚石油机械制造有限公司 | Multifunctional integrated operation device specially used for coalbed methane |
-
2013
- 2013-01-05 CN CN 201320003752 patent/CN202970597U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106522894A (en) * | 2017-01-06 | 2017-03-22 | 盐城华亚石油机械制造有限公司 | Multifunctional integrated operation device specially used for coalbed methane |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130605 Termination date: 20140105 |