CN201269063Y - Multifunctional blowout-prevention packing kit for oil extraction well - Google Patents
Multifunctional blowout-prevention packing kit for oil extraction well Download PDFInfo
- Publication number
- CN201269063Y CN201269063Y CNU2008200273954U CN200820027395U CN201269063Y CN 201269063 Y CN201269063 Y CN 201269063Y CN U2008200273954 U CNU2008200273954 U CN U2008200273954U CN 200820027395 U CN200820027395 U CN 200820027395U CN 201269063 Y CN201269063 Y CN 201269063Y
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- packing box
- packing
- pressure cap
- sheath
- blowout prevention
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- Expired - Fee Related
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Abstract
The utility model provides a multifunctional blowout prevention packing box device for an oil production well belonging to an oilfield wellhead polished rod sealing device. The multifunctional blowout prevention packing box device is provided with an oil pipe coupling, the oil pipe coupling is provided with a packing box assembly, a split type packing box is installed on the packing box assembly, a packing box pressure cap is installed outsides the split type packing box through a thread, a sheath is sleeved outside the packing box pressure cap, a key groove is arranged on the outer wall of the packing box pressure cap, the other key groove is arranged on the inner wall of the sheath, a pipe plug is installed on the sheath which is arranged above the other key groove, a press shell is installed in the split type packing box, and a packing is arranged between the press shell and the packing box assembly. The packing box device can be disassembled and regulated only by using a special tool; not only the theftproof performance is enhanced, the work intensity is lightened, but also the gas blowout accident can be efficiently prevented. The packing box is designed into a split type, and is convenient to take and pack the packing and change the packing. The utility model has simple and reasonable structure, and saves materials.
Description
Technical field
The utility model relates to the wellhead polish rod sealing device in the oil recovery field, a kind of oil field.
Background technology
At present, the packing box that uses on the production wellhead is based on the normal conventional packing box.But theftproof performance is poor, often goes to pot, and other people are degree of tightness packing box pressure cap arbitrarily, makes seal failure, and crude oil leaks to steal crude oil.In process of production, disconnected taking off can appear in oil pumping polish rod because of various reasons, causes blowout, and contaminated environment also causes the loss of national wealth, and normal operation is produced in influence.Polished rod can make the packing of sealing constantly wear and tear, wear out in reciprocating motion, causes sealing performance to descend.Adjust or change the groundwork that packing becomes field management, because of the packing cavity space narrow and small, difficulty comparatively during replacing.Though some improvement at packing box are arranged now, to improve the back volume and increase, structure is loaded down with trivial details, and waste material increases cost.
Summary of the invention
Technical problem to be solved in the utility model is to provide the multi-functional blowout prevention packing box of a kind of producing well device, to improve its antitheft and functional performance.
The utility model is to realize like this, the multi-functional blowout prevention packing box of producing well device, it has tubing coupling, the packing box assembly is installed in the tubing coupling, the split packing box is installed above the packing box assembly, split packing box outside is equipped with the packing box pressure cap by screw thread, packing box pressure cap outside is set with sheath, on the packing box pressure cap outer wall keyway is arranged, another keyway is arranged on the jacket inner wall, on the sheath of another keyway top plug is installed, in the split packing box gland is installed, between gland and the packing box assembly packing is arranged.
Adopt the packing box device of said structure, have only the special tool of use just can dismantle, adjust; Both improve theftproof performance, alleviated working strength, and can prevent gas blowout accident effectively.Packing box is designed to split type, is convenient to the dress of getting of packing, and it is convenient to change packing.And simple and reasonable, saving material.
Description of drawings
Fig. 1 is the schematic diagram of the utility model structure.
The upward view of the blowout prevention valve structure in Fig. 2 the utility model.
Fig. 3 is the schematic diagram that is used for special tool structure of the present utility model.
The specific embodiment:
The embodiment that provides below in conjunction with accompanying drawing illustrates concrete structure of the present utility model and operating principle.
As shown in drawings, the multi-functional blowout prevention packing box of the producing well of the utility model device, it has tubing coupling 1, packing box assembly 2 is installed in the tubing coupling, split packing box 10 is installed above the packing box assembly, split packing box outside is equipped with packing box pressure cap 11 by screw thread, packing box pressure cap outside is set with sheath 3, on the packing box pressure cap outer wall keyway 8 is arranged, another keyway 9 is arranged on the jacket inner wall, on the sheath of another keyway top plug 7 is installed, gland 5 is installed in the split packing box, between gland and the packing box assembly packing 4 is arranged.
Identical on the structure of packing box assembly and the existing wellhead assembly no longer described in detail.Can there be six rib grooves the upper surface of plug 7.The split packing box is installed in above the packing box assembly by screw thread, in split packing box bottom screw 12 can also be arranged, to realize fixing between split packing box and the packing box assembly.
As shown in Figure 3, an end of special tool 20 be with the plug upper surface on the corresponding hexagonal prism 21 of six rib grooves, the other end is a key 19, the shape of key is identical with shape after keyway 8, another keyway 9 coincide together.
When changing packing, in six rib grooves on the hexagonal prism end insertion plug of special tool, rotate special tool plug is unloaded.Rotation sheath 3 overlaps keyway, another keyway.Key on the special tool 19 is inserted in two keyways that overlap, thus with these two of sheaths 3, packing box pressure cap independently rotary body form a rotor.Rotate sheath and drive the rotation of packing pressure cap, and then unload the packing box pressure cap.Take out gland 5, unload unscrew 12, be rotated counterclockwise split packing box 10, taking out packing 4 can change.Get final product by anti-order assembling during installation.Even unload plug at ordinary times, also can only dally when rotating sheath, to have avoided by the phenomenon of other people random degree of tightness packing box pressure cap, theftproof performance is strong.
In described packing box assembly 2 lower ends bolt 13 is installed, swing arm 22 on the conical blowout prevention valve 16 is hinged by bearing pin 14 and bolt 13, the two ends that are sleeved on the torsion spring 15 on the bearing pin withstand on respectively on packing box assembly lower surface and the swing arm side, and the blowout prevention valve side is equipped with pulley 18.The packing box device of this structure, during the oil pumper operate as normal, pulley is attached on the polished rod 6, with rotating up and down of polished rod.When polished rod is disconnected take off after, polished rod and this device break away from, inner blowout preventer valve rotated around the polished rod hole of bearing pin on the packing box assembly under the tension effect of torsion spring 15 and shut this hole moment, realized the seat envelope under the acting in conjunction of down-hole liquid pressure, and down-hole liquid can not eject.Pulley is installed in the blowout prevention valve side by rotating shaft 17.
Claims (2)
1, the multi-functional blowout prevention packing box of producing well device, it is characterized in that, it has tubing coupling (1), packing box assembly (2) is installed in the tubing coupling, split packing box (10) is installed above the packing box assembly, split packing box outside is equipped with packing box pressure cap (11) by screw thread, packing box pressure cap outside is set with sheath (3), keyway (8) is arranged on the packing box pressure cap outer wall, another keyway (9) is arranged on the jacket inner wall, on the sheath of another keyway top plug (7) is installed, gland (5) is installed in the split packing box, packing (4) is arranged between gland and the packing box assembly.
2, the multi-functional blowout prevention packing box of producing well as claimed in claim 1 device, it is characterized in that, in described packing box assembly (2) lower end bolt (13) is installed, swing arm (22) on the conical blowout prevention valve (16) is hinged by bearing pin (14) and bolt (13), the two ends that are sleeved on the torsion spring (15) on the bearing pin withstand on respectively on packing box assembly lower surface and the swing arm side, and the blowout prevention valve side is equipped with pulley (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200273954U CN201269063Y (en) | 2008-09-02 | 2008-09-02 | Multifunctional blowout-prevention packing kit for oil extraction well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200273954U CN201269063Y (en) | 2008-09-02 | 2008-09-02 | Multifunctional blowout-prevention packing kit for oil extraction well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201269063Y true CN201269063Y (en) | 2009-07-08 |
Family
ID=40841662
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200273954U Expired - Fee Related CN201269063Y (en) | 2008-09-02 | 2008-09-02 | Multifunctional blowout-prevention packing kit for oil extraction well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201269063Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105239951A (en) * | 2015-11-04 | 2016-01-13 | 陈亮 | Oil well antitheft box set |
| CN106014324A (en) * | 2016-05-13 | 2016-10-12 | 贾广生 | Blowout-prevention and electricity-saving eccentric adjustment sealer with single ram |
| CN110107245A (en) * | 2019-05-10 | 2019-08-09 | 辽宁新华仪器有限公司 | Pumping unit well head blowout-preventing controls tool |
-
2008
- 2008-09-02 CN CNU2008200273954U patent/CN201269063Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105239951A (en) * | 2015-11-04 | 2016-01-13 | 陈亮 | Oil well antitheft box set |
| CN105239951B (en) * | 2015-11-04 | 2020-10-30 | 陈亮 | Oil well anti-theft box set |
| CN106014324A (en) * | 2016-05-13 | 2016-10-12 | 贾广生 | Blowout-prevention and electricity-saving eccentric adjustment sealer with single ram |
| CN106014324B (en) * | 2016-05-13 | 2019-04-23 | 贾广生 | The eccentric adjustment sealer of veneer blowout prevention economize on electricity |
| CN110107245A (en) * | 2019-05-10 | 2019-08-09 | 辽宁新华仪器有限公司 | Pumping unit well head blowout-preventing controls tool |
| CN110107245B (en) * | 2019-05-10 | 2024-05-10 | 辽宁新华仪器有限公司 | Blowout prevention control tool for wellhead of pumping unit |
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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: 20090708 Termination date: 20091009 |