CN203499616U - Simple wellhead - Google Patents
Simple wellhead Download PDFInfo
- Publication number
- CN203499616U CN203499616U CN201320599139.3U CN201320599139U CN203499616U CN 203499616 U CN203499616 U CN 203499616U CN 201320599139 U CN201320599139 U CN 201320599139U CN 203499616 U CN203499616 U CN 203499616U
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- China
- Prior art keywords
- flange
- valve
- well
- simple wellhead
- shatter
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Abstract
The utility model discloses a simple wellhead which comprises a flange body used for being connected with a wellhead casing head. A valve is connected to a flange at the other end of the flange body, a flange on the valve is connected with a tee joint, an instrument flange is connected with a connector flange of the tee joint, a side face connector flange of the tee joint is connected with an end cap, and the instrument flange is connected with a pressure gauge through a pressure gauge connector. The simple wellhead is connected to a casing pipe of an oil (natural gas) well, the valve is used for controlling a channel, the end cap on the tee joint can be dismounted, then a relief pipeline is connected, and open-flow treatment is conducted on gas which slides off and ascends to the wellhead in the process of well sealing. If well kick and blowout happen, the valve can be closed first, the instrument flange is dismounted, then well killing equipment is connected, and well killing operation can be conducted. The safety of the oil (natural gas) in the well sealing process can be effectively guaranteed.
Description
Technical field
The utility model relates to the simple wellhead for the interim shut-in well before hydrocarbon test after oil (natural gas) drilling process completion.
Background technology
In oil (natural gas) drilling process, due to factors such as manpower, equipment allotment or programming adjustment, usually occur can not carrying out the situation of hydrocarbon test in a short time after drilling completion.In the past, to so special oil (natural gas) well, drilling crew takes cementing plug conventionally, the mode of cover plate flange is installed and shunts in a well temporarily.But adopt cover plate flange shut-in well to have two large drawbacks; Drawback one: the gas that adopts cover plate flange shut-in well not rise to well head to slippage in shut-in well process carries out open flow processing.Drawback two: adopt cover plate flange shut-in well running into cement plug inefficacy, can not implement kill job by cover plate flange while causing well kick, blowout.Therefore be necessary to design a kind of well head, the gas that can rise to well head to slippage in shut-in well process carries out open flow processing, can when there is well kick, blowout, directly by simple wellhead, implement kill job again.
Utility model content
The utility model proposes simple wellhead, the gas that can rise to well head to slippage in shut-in well process carries out open flow processing, can when there is well kick, blowout, directly by simple wellhead, implement kill job again.
The technical solution of the utility model is achieved in that simple wellhead, comprise the flange body for being connected with casing head of well head, described flange body other end flange is connected with valve, described valve upper flange is connected with threeway, a flange of described threeway is connected with instrument flange, the side face port flange of described threeway is connected with plug, and described instrument flange is connected with pressure meter by pressure tapping.
Further, described valve has 2, between 2 valves, by flange, connects.
Further, described valve is manual flat valve.
Further, in described pressure tapping, be connected with 2 pressure meters, be respectively the shatter-proof anti-sulphur pressure meter of 100MPa and the shatter-proof anti-sulphur pressure meter of 16MPa, described 100MPa is shatter-proof, and anti-sulphur pressure meter is connected in pressure tapping by 70MPa straight-through stop valve, and described 16MPa is shatter-proof, and anti-sulphur pressure meter is connected in pressure tapping by 70MPa angle shut-off valve and pipe nipple.
Further, flange connections all arranges gasket ring.
Further, flange connections all adopts stud and nut to fix.
Further, described flange body sidewall is provided with the passage for greasing, and the passway of flange body outer wall arranges grease pouring valve.
Further, describedly for the flange connecting, all adopt thread flange.
The beneficial effects of the utility model are: simple wellhead of the present utility model, be connected on the sleeve pipe of oil (natural gas) well, valve is used for control channel, and plug in threeway can be dismantled, then connect relief line, the gas that slippage in shut-in well process is risen to well head carries out open flow processing; If there is well kick, blowout, can first valve-off, by instrument demounting flange, connecting kill-job equipment, just can carry out kill-job operation.Can effectively guarantee the safety problem of oil (natural gas) well in shut-in well process.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the structural representation of the utility model embodiment.
In figure: 1, flange body; 2, valve; 3, threeway; 4, plug; 5, instrument flange; 6, pressure tapping; 7, the shatter-proof anti-sulphur pressure meter of 100MPa; 8, the shatter-proof anti-sulphur pressure meter of 16MPa; 9, pipe nipple; 10,70MPa angle shut-off valve; 11,70MPa straight-through stop valve; 12, gasket ring; 13, stud; 14, nut.
The specific embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, rather than whole embodiment.Embodiment based in the utility model, those of ordinary skills are not making the every other embodiment obtaining under creative work prerequisite, all belong to the scope of the utility model protection.
Simple wellhead as shown in Figure 1, comprise the flange body 1 for being connected with casing head of well head, described flange body 1 other end flange is connected with 2 valves 2, between 2 valves 2, by flange, connect, described valve 2 upper flanges are connected with threeway 3 valves, and a flange of described threeway 3 valves is connected with instrument flange 5, the side face port flange of described threeway 3 valves is connected with plug 4, and described instrument flange 5 is connected with pressure meter by pressure tapping 6.
Further, described valve 2 is manual flat valve.
Further, in described pressure tapping 6, be connected with 2 pressure meters, be respectively the shatter-proof anti-sulphur pressure meter 7 of 100MPa and the shatter-proof anti-sulphur pressure meter 8 of 16MPa, described 100MPa is shatter-proof, and anti-sulphur pressure meter 7 is connected in pressure tapping 6 by 70MPa straight-through stop valve 11, and described 16MPa is shatter-proof, and anti-sulphur pressure meter 8 is connected in pressure tapping 6 by 70MPa angle shut-off valve 10 and pipe nipple 9.
Further, flange connections all arranges gasket ring 12.
Further, flange connections all adopts stud 13 and nut 14 to fix.
Further, described flange body 1 sidewall is provided with the passage for greasing, and the passway of flange body 1 outer wall arranges grease pouring valve.
Further, describedly for the flange connecting, all adopt thread flange.
After completion, temporarily do not carry out the well head of hydrocarbon test, after lower complete sleeve pipe, squeeze into cement plug, then simple wellhead shut-in well is installed on casing head.Flange body 1 is connected with the flange on casing head, 2 valves 2 are normally open near one of casing head under normal circumstances, if closed valve 2 needs repairing (replacings) or happens suddenly, during the necessary closing well of emergency, the valve of often opening 2 is closed, then operate.In simple wellhead shut-in well process, if when gas slip rises to well head, can close valve 2 above, then, by 4 dismountings of the plug of threeway 3 sides, in plug 4 installation sites, relief line is installed, opening valve 2, gas is implemented to open flow; If burst well kick, blowout can be closed two valves 2 after shut-in well, instrument flange 5 under dismounting, connects kill-job equipment by threeway 3 upper flanges, thereby implements kill-job.
Simple wellhead of the present utility model, can guarantee the safety of oil (natural gas) well in shut-in well process, can process in time emergency case, has improved safety guarantee.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (8)
1. simple wellhead, it is characterized in that: comprise the flange body (1) for being connected with casing head of well head, described flange body (1) other end flange is connected with valve (2), described valve (2) upper flange is connected with threeway (3) valve, a flange of described threeway (3) valve is connected with instrument flange (5), the side face port flange of described threeway (3) valve is connected with plug (4), and described instrument flange (5) is connected with pressure meter by pressure tapping (6).
2. simple wellhead according to claim 1, is characterized in that: described valve (2) has 2, between 2 valves (2), by flange, connects.
3. simple wellhead according to claim 2, is characterized in that: described valve (2) is manual flat valve.
4. simple wellhead according to claim 1, it is characterized in that: in described pressure tapping (6), be connected with 2 pressure meters, be respectively the shatter-proof anti-sulphur pressure meter of the shatter-proof anti-sulphur pressure meter of 100MPa (7) and 16MPa (8), described 100MPa is shatter-proof, and anti-sulphur pressure meter (7) is connected to pressure tapping (6) above by 70MPa straight-through stop valve (11), and described 16MPa is shatter-proof, and anti-sulphur pressure meter (8) is connected on instrument flange (5) by 70MPa angle shut-off valve (10) and pipe nipple (9).
5. simple wellhead according to claim 4, is characterized in that: flange connections all arranges gasket ring (12).
6. simple wellhead according to claim 4, is characterized in that: flange connections all adopts stud (13) and nut (14) to fix.
7. simple wellhead according to claim 1, is characterized in that: described flange body (1) sidewall is provided with the passage for greasing, and the passway of flange body (1) outer wall arranges grease pouring valve.
8. simple wellhead according to claim 4, is characterized in that: describedly for the flange connecting, all adopt thread flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320599139.3U CN203499616U (en) | 2013-09-26 | 2013-09-26 | Simple wellhead |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320599139.3U CN203499616U (en) | 2013-09-26 | 2013-09-26 | Simple wellhead |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203499616U true CN203499616U (en) | 2014-03-26 |
Family
ID=50330605
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320599139.3U Expired - Lifetime CN203499616U (en) | 2013-09-26 | 2013-09-26 | Simple wellhead |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203499616U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107588278A (en) * | 2017-11-03 | 2018-01-16 | 攀钢集团矿业有限公司 | The valve application method of corrosive liquids discharge tube and concentration ore pulp discharge tube |
-
2013
- 2013-09-26 CN CN201320599139.3U patent/CN203499616U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107588278A (en) * | 2017-11-03 | 2018-01-16 | 攀钢集团矿业有限公司 | The valve application method of corrosive liquids discharge tube and concentration ore pulp discharge tube |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140326 |