CN202882827U - Pressurized encapsulating device for well head - Google Patents
Pressurized encapsulating device for well head Download PDFInfo
- Publication number
- CN202882827U CN202882827U CN 201220430121 CN201220430121U CN202882827U CN 202882827 U CN202882827 U CN 202882827U CN 201220430121 CN201220430121 CN 201220430121 CN 201220430121 U CN201220430121 U CN 201220430121U CN 202882827 U CN202882827 U CN 202882827U
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- well
- sleeve
- pressurized
- well head
- seal ring
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Abstract
The utility model relates to the technical field of emergency rescue of well repair or well blowout under the condition that an oil field oil extraction well head casing pipe head is lost, in particular to a pressurized encapsulating device for a well head. A flange, a connection pipe and a seal sleeve of the pressurized encapsulating device are connected from top to bottom in sequence, the seal sleeve is provided with an upper seal ring, a lower seal ring and a glue infusing valve. The glue infusing valve is arranged between the upper seal ring and the lower seal ring, and the lower end of the seal sleeve is connected with a sleeve hoop. An inner inverted cone surface of the sleeve hoop is matched with an outer inverted cone surface of an alligator tooth block, and an inner ring surface of the alligator tooth block is of a jagged tooth shape. The alligator tooth block is tightly locked through an alligator tooth lock sleeve, and a lock nut is installed outside the alligator tooth lock sleeve. Due to the fact that the pressurized encapsulating device for the well head is installed on the well head, the well blowout rescue operation can be achieved conveniently and fast, environmental pollution caused by the well blowout is effectively avoided, and the pressurized encapsulating device for the well head is safe and reliable in installation and use. The defects that the well head casing pipe head of an existing long-stop well is lost, as a result, the well is prone to the well blowout, and serious environmental pollution accidents are caused are overcome.
Description
Technical field:
The utility model relates to the emergency repair technical field of a kind of oil extraction in oil field casing head of well head disappearance well reparation or blowout, particularly a kind of wellheadpressure wrapper.
Background technology:
Under present condition, the oil field there is no casing head and loses well wellheadpressure packaging system.But the field produces actual conditions prove, can stay many length and stop the well long term exposure in the open air in oilfield process, and these wells are mostly distant from the producing well station, and the situation that some oil, well casing head are lost appears in thin oil block inevitably especially.These wells only are welded with steel sheet at casing coupling or casing nipple place mostly, and along with the block effective response for water flood, there is high pressure in majority in these wells, the flange spool that can't more renew its pressure release.In a single day blowout occurs in this class well, helpless under present technical condition, can only wait oil well energy all to exhaust the natural stop-spraying of ability, therefore can cause serious environmental pollution accident, simultaneously in the blowout process, also have numerous potential safety hazards, produce to the oil field and bring serious destruction, these length are stopped well and are existed potential safety hazard always.Therefore, be badly in need of reparation and the blowout control device of this class well are developed, and drop into as early as possible and use.
The utility model content:
The technical problems to be solved in the utility model provides a kind of wellheadpressure wrapper, and this device is installed on the well head can convenient and swift realization rob the spray operation, effectively avoids the environment pollution that blowout causes occurs, and installs and uses safe and reliable.Overcome existing well top stopped for long time casing head and lost the deficiency that easy generation blowout causes serious environmental pollution accident.
Technical solution adopted in the utility model is: a kind of wellheadpressure wrapper comprises flange and adapter; Flange, adapter, sealing shroud connect from top to bottom in turn, upper-lower seal ring and rubber injecting valve are installed on the sealing shroud, rubber injecting valve places between the upper-lower seal ring, the sealing shroud lower end connects cuff, the interior rounding conical surface of cuff matches with the outer rounding conical surface of crocodile block teeth, the inner ring surface of crocodile block teeth is sour jujube tooth shape, and the crocodile block teeth are by the locking of crocodile tooth lock sleeve, and crocodile tooth lock sleeve is equipped with locking nut outward.
The beneficial effects of the utility model are: the utility model has been owing to having adopted the mode of installing lower sealing ring and rubber injecting valve at sealing shroud, thereby has the function that the pressure oil of sealing oil well does not leak; Because the mode that has adopted cuff to match with the crocodile block teeth, thereby have the utility model tightly is locked on the casing coupling of well head not by the function of pull-off, the utility model is installed on the well head can convenient and swift realization rob the spray operation, effectively avoid the environment pollution that blowout causes occurs, install and use safe and reliable.
Description of drawings:
The utility model is described in more detail below in conjunction with the drawings and specific embodiments.
Fig. 1 is structural representation of the present utility model.
The specific embodiment:
As shown in drawings, a kind of wellheadpressure wrapper comprises flange 1 and takes over 9; Flange 1, adapter 9, sealing shroud 2 connect from top to bottom in turn, upper-lower seal ring 3 and rubber injecting valve 4 are installed on the sealing shroud 2, rubber injecting valve 4 places between the upper-lower seal ring 3, sealing shroud 2 lower ends connect cuff 5, the interior rounding conical surface of cuff 5 matches with the outer rounding conical surface of crocodile block teeth 6, the inner ring surface of crocodile block teeth 6 is sour jujube tooth shape, and crocodile block teeth 6 are equipped with locking nuts 8 by 7 lockings of crocodile tooth lock sleeve outside the crocodile tooth lock sleeve 7.
Flange 1 of the present utility model, adapter 9 form bindiny mechanisms, are used for connecting extracting device of oil.Sealing shroud 2, upper-lower seal ring 3 form sealing mechanism, and the pressure oil that is used for the sealing oil well does not leak.Inject high-pressure glue by rubber injecting valve 4 upper-lower seal ring 3(adopted splitted structure) tightly be pressed on the outer wall of wellhead casing pipe box cupling, upper-lower seal ring 3, casing coupling outer wall and sealing shroud 2 form a closed cavity, form positiver sealing by injecting high-pressure glue, the pressure oil of oil well is not leaked.Crocodile block teeth 6, crocodile tooth lock sleeve 7, cuff 5, locking nut 8 form retaining mechanisms, are used for the utility model tightly is locked on the casing coupling of well head not by pull-off.Crocodile block teeth 6 usefulness instrument steels are done, and its hardness is higher than the casing coupling material, and crocodile block teeth 6 inner ring surfaces are sour jujube tooth shape, are used for being engaged in the periphery of wellhead casing pipe box cupling.Crocodile block teeth 6 its outer ring surfaces are with tapering, are complementary with the Inner taper seat of cuff 5.After whole device is enclosed within on the casing coupling, by tightening locking nut 8, can be locked in advance the utility model on the well head, when in the well head during crude oil mineralization pressure, the utility model is produced huge upwards withdrawal force (approximately tens of ton), because the effect of the conical surface, crocodile block teeth 6 will be embraced more tightly to be stung on box cupling, pressure is higher, and enclasping force is also larger, thereby ensures that the utility model is not pulled out.
Be understandable that, above about specific descriptions of the present utility model, only for the utility model being described and being not to be subject to the described technical scheme of the utility model embodiment, those of ordinary skill in the art is to be understood that, still can make amendment or be equal to replacement the utility model, to reach identical technique effect; Use needs as long as satisfy, all within protection domain of the present utility model.
Claims (1)
1. a wellheadpressure wrapper comprises flange (1) and takes over (9); It is characterized in that: flange (1), adapter (9), sealing shroud (2) connect from top to bottom in turn, upper-lower seal ring (3) and rubber injecting valve (4) are installed on the sealing shroud (2), rubber injecting valve (4) places between the upper-lower seal ring (3), sealing shroud (2) lower end connects cuff (5), the interior rounding conical surface of cuff (5) matches with the outer rounding conical surface of crocodile block teeth (6), the inner ring surface of crocodile block teeth (6) is sour jujube tooth shape, crocodile block teeth (6) are equipped with locking nut (8) by crocodile tooth lock sleeve (7) locking outside the crocodile tooth lock sleeve (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220430121 CN202882827U (en) | 2012-08-28 | 2012-08-28 | Pressurized encapsulating device for well head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220430121 CN202882827U (en) | 2012-08-28 | 2012-08-28 | Pressurized encapsulating device for well head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202882827U true CN202882827U (en) | 2013-04-17 |
Family
ID=48074267
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220430121 Expired - Fee Related CN202882827U (en) | 2012-08-28 | 2012-08-28 | Pressurized encapsulating device for well head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202882827U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111021978A (en) * | 2018-03-12 | 2020-04-17 | 丁睿哲 | Petroleum industry well head prosthetic devices |
-
2012
- 2012-08-28 CN CN 201220430121 patent/CN202882827U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111021978A (en) * | 2018-03-12 | 2020-04-17 | 丁睿哲 | Petroleum industry well head prosthetic devices |
| CN111021978B (en) * | 2018-03-12 | 2021-11-23 | 盐城瑞德石化机械有限公司 | Petroleum industry well head prosthetic devices |
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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: 20130417 Termination date: 20130828 |