CN212774208U - Union cover for wellhead equipment - Google Patents
Union cover for wellhead equipment Download PDFInfo
- Publication number
- CN212774208U CN212774208U CN202021600787.2U CN202021600787U CN212774208U CN 212774208 U CN212774208 U CN 212774208U CN 202021600787 U CN202021600787 U CN 202021600787U CN 212774208 U CN212774208 U CN 212774208U
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- annular
- union
- wellhead equipment
- lugs
- lug
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Abstract
The utility model relates to a union lid for well head equipment, which comprises a body, the body is the drum shape, body outside surface is provided with the reticulation annular knurl, the body upper end outside is the annular array and is provided with the lug, lug and body integrated into one piece, be provided with the lewis hole in the lug, the inside annular slips that is provided with in body upper end, the annular slips can be dismantled with the body and be connected, body inboard middle part is provided with the annular groove, the body inner wall of annular groove below is provided with the screw thread, and this union lid for well head equipment makes easy dismouting under weight and the great state of volume, guarantees the efficiency and the security of installation.
Description
Technical Field
The utility model belongs to a well head equipment seal part technical field, concretely relates to union lid for well head equipment.
Background
Traditional union lid excircle selects annular knurl or milling flutes to increase frictional force, makes things convenient for the operator to come to tighten and loosen and unloads the union lid, but along with wellhead equipment inside operating pressure's requirement is higher and higher, the volume and the weight of union lid constantly increase, and simple in the union increase roughness by lid excircle part and install, can not satisfy the requirement of operation already. With the requirements of timeliness and safety of petroleum drilling operation, the union cover which is simple in structure, safe, reliable, time-saving, labor-saving and easy to install is urgently needed by the technical personnel in the field.
Disclosure of Invention
To the problem that exists among the above-mentioned background art, the utility model provides an easy dismouting under the great state of weight and volume guarantees the efficiency of installation and the union lid for the well head equipment of security.
The technical scheme of the utility model as follows:
foretell a union lid for well head equipment, which comprises a body, the body is the drum shape, body outside surface is provided with the reticulation annular knurl, the body upper end outside is the annular array and is provided with the lug, lug and body integrated into one piece, be provided with the lewis hole in the lug, the inside annular slips that is provided with in body upper end, body inboard middle part is provided with the annular groove, the body inner wall of annular groove below is provided with the screw thread.
Preferably, the inner side of the bottom of the body is chamfered.
Preferably, the annular slips are detachably connected with the body or integrally formed with the body.
Preferably, four lugs are arranged, and the lugs are symmetrically distributed.
Preferably, the lug upper surface, the body upper surface and the annular slip upper surface are flush.
Preferably, the annular slips have an inner diameter less than an inner diameter of the body.
Preferably, the lug is in a rectangular parallelepiped shape, and the surface of the lug is chamfered.
Has the advantages that:
the outer side surface of the body arranged in the utility model is provided with the reticulate pattern knurl, which has the antiskid effect in the installation process; lugs are arranged on the outer side of the upper end of the arranged body in an annular array and are integrally formed with the body, lifting holes are formed in the lugs, and the union cover can be lifted through the lifting holes, so that the union cover is easy to disassemble and assemble under the conditions of large weight and large volume, and the installation efficiency and safety are ensured; the inner wall of the body below the arranged annular groove is provided with threads, and the threads are used for being installed in a matched mode with the thread part of the bulge outside the sealing joint, so that installation convenience is guaranteed, and the requirement for sealing performance is met.
Drawings
Fig. 1 is the axial section structure schematic diagram of the union cover for wellhead equipment of the utility model.
Fig. 2 is the utility model discloses the main structure schematic diagram of looking at of union lid for wellhead equipment.
Fig. 3 is a schematic view of the bottom view structure of the union cover for wellhead equipment.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
As shown in fig. 1-3, the utility model discloses a union lid for well head equipment, including body 1, body 1 is the drum shape, body 1 outside surface is provided with reticulation annular knurl 2, and reticulation annular knurl 2 is through the knurling sword at body 1 surface machining shaping, and its main objective makes body 1 surface have anti-skidding effect, keeps the appearance pleasing to the eye simultaneously. The outer side of the upper end of the body 1 is provided with lugs 3 in an annular array mode, the lugs 3 and the body 1 are integrally formed, lifting holes 4 are formed in the lugs 3, when the device is used, the lifting hooks are passed through in the lifting holes 4, the whole union cover can be lifted, installation is easier, and inconvenient manual carrying when the weight of the union cover is too large is avoided. The inside annular slips 5 that is provided with of body 1 upper end, annular slips 5's effect plays the effect that blocks when installing with the outside bellied screw thread portion cooperation of sealing joint, prevents that the union lid from installing not in place. Annular slips 5 can be dismantled with body 1 and be connected, specifically can adopt the bolt to assemble, also can be when the preparation with body 1 integrated into one piece. The middle part of the inner side of the body 1 is provided with an annular groove 6, and a sealing ring can be placed in the annular groove 6, so that the sealing effect is achieved. The inner wall of the body 1 below the annular groove 6 is provided with threads 7, wherein the body 1, the lugs 3 and the annular slips 5 (all made of steel) are formed by milling.
The inner side of the bottom of the body 1 is provided with a chamfer, so that the sealing joint can be more easily inserted into the body 1 when the body 1 and the sealing joint are installed.
The lugs 3 are four, the lugs 3 are symmetrically distributed, and during hoisting, the four lifting lugs 3 are all hoisted, so that the hoisting moving process is stable.
The upper surfaces of the lugs 3, the body 1 and the annular slips 5 are flush, so that the appearance is kept flat and attractive, and the surface is easier to machine and form.
The inner diameter of the annular slip 5 is smaller than that of the body 1, and the annular slip 5 plays a role in blocking when being matched with the raised thread part outside the sealing joint to prevent the union cover from being installed in place.
The lug 3 is the cuboid shape, 3 surfaces of the lug are chamfers, the lug 3 can be rapidly formed through milling, and the occupied space is small.
The utility model discloses a theory of operation: when well head equipment need change the sealing member operation, hoist and mount union lid from the lewis hole 4 of lug 3 with the lifting hook, the one end and the chain block of lifting hook are connected, when will promoting and transfer the union lid, pulling chain block can realize removing the union lid to the mounted position, can not take effort lift the big union lid of weight, accomplish the operation of changing the sealing member.
The union cover is installed in the well logging blowout preventer, and the well logging blowout preventer is used for preventing high-temperature and high-pressure fluids (oil, gas, steam and water) in production wells (injection wells and production wells) from being sprayed out of a well mouth during cased well logging, and well logging is carried out under the normal pressure of the production wells. The existing well logging blowout preventer comprises a blowout preventer (generally an oil pipe longer than 2 m), an oil pipe short joint, an overflow pipe, a blowout preventer box body and the like, wherein a union cap is a connecting piece for sealing the inside of the well logging blowout preventer, and when the well logging blowout preventer is specifically installed, the union cap is used for connecting a sealing joint, wherein the outer diameter of the sealing joint is larger than the inner diameter of an annular slip 5, and the outer diameter of the sealing joint is smaller than the inner diameter of a body 1, so that the sealing joint can be installed on the body 1 and can be blocked by the annular slip 5, but the joints of the sealing joint are provided with outwards-protruding threaded parts, and the outer diameter of the threaded parts can be matched with threads 7 on the inner wall of the body 1, so that the well logging blowout.
The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations are also considered as the protection scope of the present invention.
Claims (8)
1. The utility model provides a union lid for wellhead equipment, includes body (1), body (1) is the drum shape, body (1) outside surface is provided with reticulation annular knurl (2), its characterized in that: the improved structure is characterized in that the outer side of the upper end of the body (1) is provided with lugs (3) in an annular array mode, the lugs (3) and the body (1) are integrally formed, lifting holes (4) are formed in the lugs (3), annular slips (5) are arranged inside the upper end of the body (1), an annular groove (6) is formed in the middle of the inner side of the body (1), and threads (7) are arranged on the inner wall of the body (1) below the annular groove (6).
2. The union cover for a wellhead equipment according to claim 1, wherein: the inner side of the bottom of the body (1) is chamfered.
3. The union cover for a wellhead equipment according to claim 1, wherein: the annular slip (5) is detachably connected with the body (1).
4. The union cover for a wellhead equipment according to claim 1, wherein: the annular slips (5) and the body (1) are integrally formed.
5. The union cover for a wellhead equipment according to claim 1, wherein: four lugs (3) are arranged, and the lugs (3) are symmetrically distributed.
6. The union cover for a wellhead equipment according to claim 1, wherein: the upper surfaces of the lugs (3), the body (1) and the annular slips (5) are flush.
7. The union cover for a wellhead equipment according to claim 1, wherein: the inner diameter of the annular slip (5) is smaller than that of the body (1).
8. The union cover for a wellhead equipment according to claim 1, wherein: the lug (3) is in a cuboid shape, and the surface of the lug (3) is in a chamfer arrangement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021600787.2U CN212774208U (en) | 2020-08-05 | 2020-08-05 | Union cover for wellhead equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021600787.2U CN212774208U (en) | 2020-08-05 | 2020-08-05 | Union cover for wellhead equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212774208U true CN212774208U (en) | 2021-03-23 |
Family
ID=75040748
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021600787.2U Active CN212774208U (en) | 2020-08-05 | 2020-08-05 | Union cover for wellhead equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212774208U (en) |
-
2020
- 2020-08-05 CN CN202021600787.2U patent/CN212774208U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Union cover for wellhead equipment Effective date of registration: 20220223 Granted publication date: 20210323 Pledgee: Baoji Weibin rural commercial bank Limited by Share Ltd. Pledgor: BAOJI JINHUI OILFIELD MACHINERY Co.,Ltd. Registration number: Y2022980001796 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20230221 Granted publication date: 20210323 Pledgee: Baoji Weibin rural commercial bank Limited by Share Ltd. Pledgor: BAOJI JINHUI OILFIELD MACHINERY Co.,Ltd. Registration number: Y2022980001796 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Union cover for wellhead equipment Effective date of registration: 20230223 Granted publication date: 20210323 Pledgee: Baoji Weibin rural commercial bank Limited by Share Ltd. Pledgor: BAOJI JINHUI OILFIELD MACHINERY Co.,Ltd. Registration number: Y2023980033295 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |