CN2337311Y - Multi-function well head blow-out preventing box - Google Patents
Multi-function well head blow-out preventing box Download PDFInfo
- Publication number
- CN2337311Y CN2337311Y CN 98238353 CN98238353U CN2337311Y CN 2337311 Y CN2337311 Y CN 2337311Y CN 98238353 CN98238353 CN 98238353 CN 98238353 U CN98238353 U CN 98238353U CN 2337311 Y CN2337311 Y CN 2337311Y
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- sphere
- well head
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- model
- annular seal
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Abstract
The utility model relates to a subsurface tool used for an oilfield well, particularly a multifunctional well head blow-out preventing box. The utility model is composed of a quick press cap 1, a press cap 2, a sealing cavity 3, a cushion board root 4, a hand grip 5, a bean 6, a main body cover 7, a shut-off device 8, a sealed cap 9, a screw 10, a press cap 11, a board root 12, a pup joint of the sphere 13, a flange on the sphere 14, a flange under the sphere 15 and a bolt 16. The apparatus is provided with the structure of the sealing cavity, the lubricating space and the articulated sphere, which can quickly exchange the cushion board root and raise the service life of the cushion board root. On the new pumping well or indirect pumping well, the utility model can prevent the leakage of oil caused by polish rod dry grinding cushion and breaking the seal. The utility model can random adjust the deflection direction of the well head, guarantee the polish rod in the center of the well head, prevent the polish rod deviating the well head and hard grinding the cushion board root, and prolong the sealing life.
Description
The utility model relates to the downhole tool that uses on a kind of oilfield, particularly a kind of multifunctional well head blowout prevention box.
The present blowout prevention box that uses on the oil well is mainly used in the polished rod seal of oil pumping machine oil pumping well head, prevents crude oil ejection well head, because its polished rod dry grinding, eccentric wear rubber cushion destroy sealing and leakage of oil, and packing changes trouble, influences crude oil production.
The purpose of this utility model is to provide a kind of multifunctional well head blowout prevention box, and this blowout prevention box can be adjusted the well head yawing moment arbitrarily, prevents the polished rod eccentric wear, and can self-lubricate, prolongs packing application life, and it is convenient to change, and increases work efficiency.
The purpose of this utility model is achieved in that it forms by connecing pressure cap (1), gland (2), annular seal space (3), rubber cushion packing (4), handle (5) oil nozzle (6), main body cover (7), flashboard (8), sealing cap (9) screw rod (10), gland (11), packing (12), sphere pipe nipple (13), sphere upper flange (14), sphere lower flange (15), bolt (16) soon.
Its assembling and architectural feature are as follows: connect pressure cap (1) soon and be threaded with annular seal space (3), be followed successively by gland (2) in the annular seal space (3) from top to bottom, rubber cushion packing (4), main body cover (7), annular seal space (3) is outer to be handle (5), oil nozzle (6) is arranged on the main body cover (7), its side is threaded with sealing cap (9), there is flashboard (8) inside, screw rod (10), gland (11), packing (12), main body cover (7) bottom is connected with sphere pipe nipple (13), sphere upper flange (14) is arranged on the sphere pipe nipple (13), sphere lower flange (15), fixing by bolt (16).
During work, this multifunctional well head blowout prevention box is installed on the well head, polished rod passes from its center, and annular seal space center rubber cushion makes the sealing of polished rod and well head under the fastening effect that pressure cap emits, and can upper and lower slip.Lubrication oil in the lubricating cavity constantly infiltrates in the middle of polished rod and the seal gasket, has alleviated the friction between them, increases sealing effectiveness, prolongation rubber cushion application life.Adjust the sphere movable joint of bottom, make polished rod be in the center of well head, prevent that polished rod from departing from well head, the hard grind rubber cushion destroys sealing and leakage of oil.When changing the packing rubber cushion, open annular seal space and quick pressure cap, seal gasket can together be disassembled, and new rubber cushion can directly install on the seal receptacle, by pressing down, tighten the annular seal space screw thread, new rubber cushion enters annular seal space, replaces out old rubber cushion, so, can remove old rubber cushion, load onto and connect pressure cap soon, recover oil pumping and produce.
The utility model makes it to change the rubber cushion packing fast owing to adopted the structure of annular seal space, lubricating cavity, sphere movable joint, and is easy to use, time saving and energy saving, and rate in the time of should be able to improving oil pumping mutually increases crude output.Can self-lubricate, improve rubber cushion packing application life, newly open take out aboveground or a producing well on, can prevent polished rod dry grinding rubber cushion, destroy sealing and leakage of oil.Can adjust the well head yawing moment arbitrarily, guarantee that polished rod is in the well head center, prevent that polished rod from departing from well head, hard grind dish rubber cushion packing prolongs sealing life.
Fig. 1 is a structural representation of the present utility model.
Below in conjunction with accompanying drawing the utility model is further specified.
The utility model mainly is made of four parts: annular seal space: form by connecing pressure cap 1, gland 2, rubber cushion packing 4, handle 5, annular seal space 3 soon, lubricating cavity: form by oil nozzle 6, main body cover 7, rubber valve: form the sphere movable joint by flashboard 8, sealing cap 9, screw rod 10, gland 11, packing 12: form by sphere pipe nipple 13, sphere upper flange 14, sphere lower flange 15, bolt 16.
With this device, be installed on the well head, make polished rod from its middle passing, adjust the sphere movable joint, allow polished rod be in blowout prevention box center, dress rubber cushion packing is changed close chamber, on seal receptacle, load onto the rubber cushion dish (general 10) of some, press down afterwards and tighten the annular seal space screw thread, the rubber cushion packing is entered in its chamber, be in best close state, dress lubrication oil, close the rubber gate, use the butter bolt, in lubricating cavity, squeeze into butter from oil nozzle, after filling it up with, open the rubber gate again, change the rubber cushion packing, open annular seal space and connect pressure-pad soon, on seal receptacle, add more root of new rubber cushion, press down and tighten the annular seal space screw thread afterwards, replace out old packing, load onto and connect pressure-pad soon, adjust rubber cushion packing_seal state, operating pressure :≤20MPa, operating temperature :≤120 ℃.
Claims (2)
1, the utility model relates to the downhole tool that uses on a kind of oilfield, particularly a kind of multifunctional well head blowout prevention box, it is by connecing pressure cap (1) soon, gland (2), annular seal space (3), rubber cushion packing (4), handle (5) oil nozzle (6), main body cover (7), flashboard (8), sealing cap (9) screw rod (10), gland (11), packing (12), sphere pipe nipple (13), sphere upper flange (14), sphere lower flange (15), bolt (16) is formed, it is characterized in that: connect pressure cap (1) soon and be threaded with annular seal space (3), be followed successively by gland (2) in the annular seal space (3) from top to bottom, rubber cushion packing (4), main body cover (7), annular seal space (3) is outer to be handle (5), oil nozzle (6) is arranged on the main body cover (7), its side is threaded with sealing cap (9), there is flashboard (8) inside, screw rod (10), gland (11), packing (12), main body cover (7) bottom is connected with sphere pipe nipple (13), sphere upper flange (14) is arranged on the sphere pipe nipple (13), sphere lower flange (15), fixing by bolt (16).
2, multifunctional well head blowout prevention box according to claim 1 is characterized in that: the operating pressure of bearing :≤20MPa, operating temperature :≤120 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98238353 CN2337311Y (en) | 1998-07-22 | 1998-07-22 | Multi-function well head blow-out preventing box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98238353 CN2337311Y (en) | 1998-07-22 | 1998-07-22 | Multi-function well head blow-out preventing box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2337311Y true CN2337311Y (en) | 1999-09-08 |
Family
ID=33985964
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98238353 Expired - Fee Related CN2337311Y (en) | 1998-07-22 | 1998-07-22 | Multi-function well head blow-out preventing box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2337311Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102900392A (en) * | 2012-09-03 | 2013-01-30 | 中国石油化工股份有限公司 | Controllable pumping-well blowout preventer |
| CN105604518A (en) * | 2015-12-22 | 2016-05-25 | 付吉平 | Portable wellhead drop-prevention device and wellhead cable blowout-prevention gate integrated device |
| CN111706291A (en) * | 2020-07-09 | 2020-09-25 | 刘建男 | Pipeline plugging device and well workover method |
| CN112593865A (en) * | 2021-01-23 | 2021-04-02 | 东营宏得石油装备有限公司 | Self-lubricating type automatic deviation-adjusting rubber gate for polished rod and using method thereof |
-
1998
- 1998-07-22 CN CN 98238353 patent/CN2337311Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102900392A (en) * | 2012-09-03 | 2013-01-30 | 中国石油化工股份有限公司 | Controllable pumping-well blowout preventer |
| CN105604518A (en) * | 2015-12-22 | 2016-05-25 | 付吉平 | Portable wellhead drop-prevention device and wellhead cable blowout-prevention gate integrated device |
| CN111706291A (en) * | 2020-07-09 | 2020-09-25 | 刘建男 | Pipeline plugging device and well workover method |
| CN112593865A (en) * | 2021-01-23 | 2021-04-02 | 东营宏得石油装备有限公司 | Self-lubricating type automatic deviation-adjusting rubber gate for polished rod and using method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |