CN203640685U - Fast cut-off device for shaft mouth production flow channel - Google Patents
Fast cut-off device for shaft mouth production flow channel Download PDFInfo
- Publication number
- CN203640685U CN203640685U CN201320886393.1U CN201320886393U CN203640685U CN 203640685 U CN203640685 U CN 203640685U CN 201320886393 U CN201320886393 U CN 201320886393U CN 203640685 U CN203640685 U CN 203640685U
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- CN
- China
- Prior art keywords
- tubing hanger
- spheroid
- runner
- mandrel hanger
- tubing
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- 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
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Abstract
The utility model discloses a fast cut-off device for a shaft mouth production flow channel. The fast cut-off device for the shaft mouth production flow channel comprises a tubing head cross connector, a mandrel hanger fixedly mounted in the tubing head cross connector and a cut-off component arranged in the mandrel hanger. The cut-off component is arranged in the mandrel hanger and divides the mandrel hanger into an upper mandrel hanger and a lower mandrel hanger. The cut-off component comprises valve seats, a ball, a pair of transmission components and a valve rod, wherein the valve seats are arranged between the upper mandrel hanger and the lower mandrel hanger, the ball is arranged between the valve seats and controls the flow channel between the lower mandrel hanger and the upper mandrel hanger to be connected or disconnected, the transmission components are arranged at the two ends of the ball respectively and are located between the ball and the valve seats, and one end of the valve rod is connected with one transmission component. The fast cut-off device for the shaft mouth production flow channel is mainly applied to snubbing well replacement of oil and gas christmas trees, and the operation of replacing the oil and gas christmas trees is made to be more convenient, faster, cheaper and safer under the condition of killing well or snubbing well conditions.
Description
Technical field
The utility model relates to field of petroleum exploitation, and particularly a kind of well head is produced the quick cutting device of runner.
Background technology
Along with various countries increase day by day to the demand of oil and natural gas resource, the inevitable market in future of quantity required of wellhead assembly and production tree equipment fiercely increases, and also the well workover of inevitable requirement wellhead assembly and production tree equipment or replacing operation can more quick and safety.Usual manner is to enter on the lower a counterbalance valve to the counterbalance valve screw thread place in tubing hanger to cut off production runner, and its structural form is generally illustrated in fig. 3 shown below, and its composition member has: tubing hanger 1 ', counterbalance valve 2 '.Its operating process is as follows: first counterbalance valve 2 ' is connected on counterbalance valve fetching and sending devices; Then the instrument of counterbalance valve being fetched and delivered is connected on tree cap; Fetch and deliver instrument with counterbalance valve again counterbalance valve 2 ' is sent into and is fixed in tubing hanger, so just realized closing well head runner.If reopen well head runner, method and step be with similar above, still needs to install and be lowered to counterbalance valve and fetch and deliver instrument counterbalance valve is taken out.
Above-mentioned counterbalance valve method technique more complicated, efficiency is low, to operating personnel require highly, potential safety hazard is also high.The every subjob of safety need be closed storm valve, dismantles and is connected relief line, prepares fire-fighting and emergency treatment.The counterbalance valve 2 ' of transferring with pressure cuts off production runner, needs long-time observation counterbalance valve to transfer power tool and puts in place, confirms that good seal is reliable, without the harm gas leak of inflammable and explosive and H2S and so on, can change afterwards production tree operation.After replacing production tree completes, need the power tool that is lowered to pressure, back down the spool on counterbalance valve, make well head runner consistent with production tree pressure.Promote counterbalance valve with power tool and exceed lower main valve height; Close lower main valve; By the emptying production tree pressure of flow process; Operation technique is taken out together with counterbalance valve.Because the whole process of getting of sending is all the production tree in sealing---carry out in well head, intuitive is poor, and field operation once had injury accident to occur, and this method is generally avoided taking in oil field, or with kill-job (can reduce stratum permeability reduction recovery ratio) to ensure safety.
Utility model content
The purpose of this utility model is to provide a kind of well head and produces the quick cutting device of runner, avoids adopting counterbalance valve method, also not kill-job.This device in normally open, does not affect production tree and normally uses in the time of oil well production, once there is production tree fault, or need to lift the situation of production tree well workover, by the operation handwheel on oil pipe four-way, screw spheroid and can cut off well head production passage; Then emptying production tree internal pressure, i.e. replaceable production tree.
In order to realize above object, the utility model is achieved through the following technical solutions:
A kind of well head is produced the quick cutting device of runner, is characterized in, this device comprises: tubing head four-way, be fixedly mounted on the tubing hanger in tubing head four-way, and be arranged on the parts that block in tubing hanger; The described parts that block are arranged in tubing hanger, and tubing hanger is divided into upper tubing hanger and lower tubing hanger;
The described parts that block comprise: valve seat, and it is arranged between tubing hanger and lower tubing hanger;
Spheroid, it is arranged between valve seat, controls runner between lower tubing hanger and upper tubing hanger and communicates or block;
A pair of drive disk assembly, it is separately positioned on the two ends of spheroid, and between spheroid and valve seat;
Valve rod, its one end is connected with a drive disk assembly wherein.
Described drive disk assembly comprises mandrel and bearing, and described mandrel is arranged on the two ends of spheroid; Described bearing is nested with on described mandrel.
One end of described valve rod is connected with the mandrel of spheroid one end.
Described spheroid is provided with passage; When spheroid in tubing hanger is during in open mode, fluid can flow in the passage of the passage of tubing head four-way, spheroid and tubing hanger.
This device also comprises operation tool, and its one end is arranged on tubing head four-way outside, and the other end is connected with valve rod.
Described operation tool is handwheel or crank.
The utility model compared with prior art, has the following advantages:
1, the utility model does not change the external structure of tubing hanger, is master metal sealing between spheroid and valve seat, long service life, and this device in normally open, does not affect Oil/gas Well and produces in tubing hanger.
2, while cutting off production runner, spheroid pressure at two ends is consistent, and operational torque is very little; Need open while producing runner and first add well to press in production tree one end, with the pressure at balance spheroid two ends, operational torque is also very little, to also strengthening the application life of sealing.
3, easy to operate, be easy to realize, can the convenient and swift spheroid that operates safely by handwheel or other proper operation instruments in well head outside, block or open well head and produce runner, the operation inconvenience of having abandoned traditional use counterbalance valve and fetching and delivering instrument.
4, the utility model has shortened the time of closing well head production runner greatly, has improved safety, reduces operating cost.For the high-risk well head production tree of high pressure provides a kind of new safe, cheap, operational method of non-well killing change production tree easily.
Brief description of the drawings
Fig. 1 is the internal construction schematic diagram that a kind of well head of the utility model is produced the quick cutting device of runner;
Fig. 2 is the overall structure schematic diagram that a kind of well head of the utility model is produced the quick cutting device of runner;
Fig. 3 is the structural representation for the device of opening, closing of well head runner in prior art.
Detailed description of the invention
Below in conjunction with accompanying drawing, by describing a preferably specific embodiment in detail, the utility model is further elaborated.
As shown in Figure 1, a kind of well head is produced the quick cutting device of runner, comprises: tubing head four-way 3, be fixedly mounted on the tubing hanger in tubing head four-way 3, and be arranged on the parts that block in tubing hanger.Block parts and be arranged in tubing hanger, tubing hanger is divided into upper tubing hanger 11 and lower tubing hanger 12; Blocking parts comprises: valve seat 21, and it is arranged between tubing hanger 11 and lower tubing hanger 12; Spheroid 22, it is arranged between valve seat 21, controls runner between lower tubing hanger 12 and upper tubing hanger 11 and communicates or block, and adopts metal stiff dough primary seal between spheroid 22 and valve seat 21, and sealingly secure is reliable and the life-span is long; A pair of drive disk assembly, it is separately positioned on the two ends of spheroid 22, and between spheroid 22 and valve seat 21; Valve rod 24, its one end is connected with a drive disk assembly wherein.
Drive disk assembly comprises mandrel and bearing 23, and described mandrel is arranged on the two ends of spheroid; Described bearing 23 is nested with on described mandrel, and one end of valve rod 24 is connected with the mandrel of spheroid one end.Spheroid 22 is provided with passage; When spheroid in tubing hanger is during in open mode, fluid can flow in the passage of the passage of tubing head four-way 3, spheroid and tubing hanger.
This device also comprises operation tool 4, and its one end is arranged on tubing head four-way 3 outsides, and the other end is connected with valve rod 24.Operation tool 4 is handwheel or crank.
In the time of work, generally, spheroid, in full-gear, does not affect oil recovery.If need close well head runner,, by operation tool 4,90 ° of spinning balls, can block the runner between lower tubing hanger 12 and upper tubing hanger 11.When reopening runner, if there is fluid pressure spheroid below, top does not have again, and the pressure ratio that spheroid bears is larger, need to overcome larger moment of friction ability spinning ball, and this is undoubtedly inconvenient.At this moment, can carry out by production tree the pressure differential of balance spheroid 22 both sides from external world's introducing pressure fluid, like this, only need overcome less pressure gets final product spinning ball, reduces operation moment of torsion and also increases the service life.
In sum, a kind of well head of the utility model is produced the quick cutting device of runner, greatly shorten the time of closing well head runner, simplify wellhead assembly operation sequence, reduce the frequent operation to wellhead assembly and production tree, improve functional reliability and the application life of oil production equipment, and simplified the work-over operation in later stage, make to change in pressure or not kill-job situation faster and more convenient operation and the safety of production tree.
Although content of the present utility model has been done detailed introduction by above preferred embodiment, will be appreciated that above-mentioned description should not be considered to restriction of the present utility model.Read after foregoing those skilled in the art, for multiple amendment of the present utility model and substitute will be all apparent.Therefore, protection domain of the present utility model should be limited to the appended claims.
Claims (6)
1. well head is produced a runner quick cutting device, it is characterized in that, this device comprises: tubing head four-way (3), be fixedly mounted on the tubing hanger in tubing head four-way (3), and be arranged on the parts that block in tubing hanger; The described parts that block are arranged in tubing hanger, and tubing hanger is divided into upper tubing hanger (11) and lower tubing hanger (12);
The described parts that block comprise: valve seat (21), and it is arranged between tubing hanger (11) and lower tubing hanger (12);
Spheroid (22), it is arranged between valve seat (21), controls runner between lower tubing hanger (12) and upper tubing hanger (11) and communicates or block;
A pair of drive disk assembly, it is separately positioned on the two ends of spheroid (22), and is positioned between spheroid (22) and valve seat (21);
Valve rod (24), its one end is connected with a drive disk assembly wherein.
2. well head as claimed in claim 1 is produced the quick cutting device of runner, it is characterized in that, described drive disk assembly comprises mandrel and bearing (23), and described mandrel is arranged on the two ends of spheroid; Described bearing (23) is nested with on described mandrel.
3. well head as claimed in claim 2 is produced the quick cutting device of runner, it is characterized in that, one end of described valve rod (24) is connected with the mandrel of spheroid one end.
4. well head as claimed in claim 1 is produced the quick cutting device of runner, it is characterized in that, described spheroid (22) is provided with passage; When spheroid in tubing hanger is during in open mode, fluid can flow in tubing head four-way (3), the passage of spheroid and the passage of tubing hanger.
5. well head as claimed in claim 3 is produced the quick cutting device of runner, it is characterized in that, also comprise operation tool (4), its one end is arranged on tubing head four-way (3) outside, and the other end is connected with valve rod (24).
6. well head as claimed in claim 5 is produced the quick cutting device of runner, it is characterized in that, described operation tool (4) is handwheel or crank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320886393.1U CN203640685U (en) | 2013-12-31 | 2013-12-31 | Fast cut-off device for shaft mouth production flow channel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320886393.1U CN203640685U (en) | 2013-12-31 | 2013-12-31 | Fast cut-off device for shaft mouth production flow channel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203640685U true CN203640685U (en) | 2014-06-11 |
Family
ID=50871940
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320886393.1U Expired - Fee Related CN203640685U (en) | 2013-12-31 | 2013-12-31 | Fast cut-off device for shaft mouth production flow channel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203640685U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103696731A (en) * | 2013-12-31 | 2014-04-02 | 上海神开石油化工装备股份有限公司 | Quick cut-off device for wellhead production flow passages |
-
2013
- 2013-12-31 CN CN201320886393.1U patent/CN203640685U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103696731A (en) * | 2013-12-31 | 2014-04-02 | 上海神开石油化工装备股份有限公司 | Quick cut-off device for wellhead production flow passages |
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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: 20140611 Termination date: 20211231 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |