CN2479195Y - Pumping wellhead device - Google Patents
Pumping wellhead device Download PDFInfo
- Publication number
- CN2479195Y CN2479195Y CN 01225527 CN01225527U CN2479195Y CN 2479195 Y CN2479195 Y CN 2479195Y CN 01225527 CN01225527 CN 01225527 CN 01225527 U CN01225527 U CN 01225527U CN 2479195 Y CN2479195 Y CN 2479195Y
- Authority
- CN
- China
- Prior art keywords
- flange
- links
- casing
- gate valve
- triplet
- 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
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Abstract
The utility model relates to a mechanical equipment of well head controlling of an oil (gas) production mine in the production of oil field. The upper portion of a casing nipple is connected with a casing flange via casing thread connection. The casing flange is connected with a big triplet via a flange screwed connection. A lateral face of the big triplet is connected with a flange-type gate valve and a screwed flange by the manner of studding. The upper end of the big triplet is connected with a mandrel hanger flange by employing the manner of flange screwed connection. The upper end of an oil pipe flange is connected with a triplet via an oil thread. The lateral face of the triplet is connected with a screwed gate valve via an oil thread. The utility model has the advantages of simple structure, convenient installment, small volume and light weight.
Description
The utility model relates to the plant equipment of (gas) well well head control of recovering the oil in a kind of field produces, especially is applicable to the wellhead assembly when carrying out the acid fracturing operation.
At present, various oil pumping (gas) wellhead assembly that China uses mainly is made up of various gate valves etc., the flange form bolt fastening structure is overhanging formula structure and is foundry goods, therefore volume is big, the cost height, transportation and installation are very inconvenient, and the high-pressure well mouth apparatus that particularly must change the outfit when carrying out the acid fracturing operation has increased activity duration and oil well production cost.
It is a kind of simple in structure that this practical purpose is to provide, and the little and installation and transportation of volume are the mouth of pumped oil well device easily.
The utility model is realized in the following manner: a kind of mouth of pumped oil well device, comprise casing nipple 1, casing flange 2, full three links 3, flange form gate valve 4, screw thread flange 5, tubing hanger pipe nipple 6, tubing hanger flange 7, screw thread formula gate valve 8 and mini three links 9, the upper end that it is characterized in that casing nipple 1 is connected with the casing threads that is connected to of casing flange 2, casing flange 2 adopts flange bolt to be connected with full three links 3, the side of full three links 3 adopts the studding mode to link to each other with screw thread flange 5 with flange form gate valve 4, the full three links upper end adopts the flange bolt connected mode to link to each other with tubing hanger flange 7, tubing hanger flange 7 lower ends link to each other with tubing hanger pipe nipple 6 by tubing round thread, the upper end links to each other with mini three links 9 by tubing round thread, and the side of mini three links 9 links to each other with screw thread formula gate valve 8 by tubing round thread.
Advantage of the present utility model is that full three links structure and one side are the studding structure, and screw thread flange form boll-weevil hanger structure and dismountable three-port structure are therefore simple in structure, are convenient to install, and volume is little, and is in light weight.
Below in conjunction with drawings and Examples the utility model is described in further detail.
Fig. 1 is a mouth of pumped oil well apparatus structure schematic diagram.
As shown in Figure 1, the lower end of casing nipple 1 is casing threads with the upper end with the connected mode of casing flange 2 with the connected mode of the production string of oil well and is connected, casing flange adopts flange bolt to be connected with full three links 3, the full three links side adopts the studding mode to link to each other with screw thread flange 5 with flange form gate valve 4, the full three links upper end adopts the flange bolt connected mode to link to each other with tubing hanger flange 7, tubing hanger flange 7 lower ends link to each other with the tubing hanger pipe nipple by tubing round thread, the tubing hanger lower end hangs the down-hole oil tube string by tubing round thread, tubing hanger flange 7 upper ends link to each other with mini three links 9 by tubing round thread, the mini three links side links to each other with screw thread formula gate valve 8 by tubing round thread, the upper end also links to each other with supporting multi-functional packing box by tubing round thread, and utilizes the rod pumping system operation of pumping.During fracturing work, OIH cover annular space need be lowered to packer and carry out packing, and injects equilibrium liquid, and mini three links 9 and screw thread formula gate valve 8 are screwed off from tubing hanger flange 7, connects the pressure break pipeline at this and can carry out fracturing work.
Claims (1)
1, a kind of mouth of pumped oil well device, comprise casing nipple (1), casing flange (2), full three links (3), flange form gate valve (4), screw thread flange (5), tubing hanger pipe nipple (6), tubing hanger flange (7), screw thread formula gate valve (8) and mini three links (9), the upper end that it is characterized in that casing nipple (1) is connected with the casing threads that is connected to of casing flange (2), casing flange (2) adopts flange bolt to be connected with full three links (3), the side of full three links (3) adopts the studding mode to link to each other with screw thread flange (5) with flange form gate valve (4), the full three links upper end adopts the flange bolt connected mode to link to each other with tubing hanger flange (7), tubing hanger flange (7) lower end links to each other with tubing hanger pipe nipple (6) by tubing round thread, the upper end links to each other by tubing round thread threeway (9), and mini three links (9) side links to each other with screw thread formula gate valve (8) by tubing round thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01225527 CN2479195Y (en) | 2001-05-17 | 2001-05-17 | Pumping wellhead device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01225527 CN2479195Y (en) | 2001-05-17 | 2001-05-17 | Pumping wellhead device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2479195Y true CN2479195Y (en) | 2002-02-27 |
Family
ID=33641524
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01225527 Expired - Lifetime CN2479195Y (en) | 2001-05-17 | 2001-05-17 | Pumping wellhead device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2479195Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104675357A (en) * | 2013-12-02 | 2015-06-03 | 中国石油化工股份有限公司 | Simple wellhead device and application method thereof |
-
2001
- 2001-05-17 CN CN 01225527 patent/CN2479195Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104675357A (en) * | 2013-12-02 | 2015-06-03 | 中国石油化工股份有限公司 | Simple wellhead device and application method thereof |
| CN104675357B (en) * | 2013-12-02 | 2017-05-24 | 中国石油化工股份有限公司 | Simple wellhead device and application method thereof |
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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 | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20110517 Granted publication date: 20020227 |