CN202228035U - Packing box for oil well - Google Patents
Packing box for oil well Download PDFInfo
- Publication number
- CN202228035U CN202228035U CN201120355530XU CN201120355530U CN202228035U CN 202228035 U CN202228035 U CN 202228035U CN 201120355530X U CN201120355530X U CN 201120355530XU CN 201120355530 U CN201120355530 U CN 201120355530U CN 202228035 U CN202228035 U CN 202228035U
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- China
- Prior art keywords
- packing
- sealing
- split type
- well
- jointing
- Prior art date
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- Expired - Fee Related
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Abstract
A packing box for an oil well belongs to the technical field of designing and manufacturing packing boxes for sealing well openings of oil wells. The packing box for the oil well is formed by a connector and a casing, a lower packing is arranged in the connector, a sealing ring is arranged in a sealing groove, an exhaust valve is arranged on the coupling casing, and an upper packing is arranged in the casing. The using method of the packing box for the oil well is that the connector penetrates through an oil pump rod to be in threaded connection with the well opening; the upper packing and the lower packing are forced from the radial direction and the axial direction so as to enable the packing to be tightly contacted with the oil pumping rod and achieve the purpose and effect of sealing; and when the packing is replaced, the exhaust valve is opened to release pressure in the well shaft and then to perform replacement operation. The packing is arranged at the top of the connector and provided with split type slips, thereby preventing packing with good condition from being damaged. Thus, material consumption and production cost are reduced. In addition, the lower packing and the sealing ring add a layer of sealing barrier so that sealing performance is improved. The exhaust valve prevents operators from being hurt by high pressure air. Therefore, the problems in the prior art are resolved.
Description
Technical field
The utility model belongs to design and the manufacturing technology field of well mouth of oil well sealing with packing box.
Background technology
Produce the packing box that uses in the reality is to be made up of jointing and overcoat at present.One packing groove is arranged at the top of jointing.During use jointing is bound up on the well head.Suit packing on the sucker rod on jointing top is pressed into the packing groove by overcoat with packing more then, with the sucker rod banding.With the well mouth of oil well sealing, guarantee that oil, gas, the water in the oil well can not be to external leakage.Owing to when long-term work, packing occur leaking because be worn, just must change to packing.Because packing is extruded modification in the packing groove, must it be plucked out with instruments such as screwdrivers, not only time-consuming but also require great effort.Yet the instrument that when taking out, uses is easy to the packing that still is in serviceable condition is damaged, and can cause the waste of material again, has strengthened the enterprise production cost.Also has a kind of packing box that has split type slips now; Though solved and damaged the problem that still is in the serviceable condition packing when changing packing; But owing to be that what to adopt is one sealing, the packing number of times that is worn and is replaced that works long hours is frequent, thereby influence is produced.Be exactly existing packing box in addition when changing packing, because the pressure in the well is big, the gas that operating personnel are emerged suddenly easily when the dismounting packing wounds, and is prone to security incident.
Summary of the invention
To above-mentioned situation, it is convenient and can not damage intact packing and can prolong the packing box of changing the packing cycle that the purpose of the utility model provides a kind of packing of changing, to solve the problem that existing product exists.
The utility model is to address the above problem the technical scheme of being taked to be: be made up of jointing and overcoat.Have one to connect overcoat in the outside of jointing.In jointing, have packing down.On the neighboring of jointing, have seal groove, in seal groove, have sealing ring.Outside connecting, put and have outlet valve.Connecting overcoat is connect by screw thread with jointing mutually.Have packing in its external sleeve.Have split type slips between its external sleeve and the last packing, split type slips is two, about its external sleeve is interior a slice is set respectively.Split type slips is taper.Have the convex shape caulking groove at connection overcoat and split type slips joint portion.Have the convex shape abaculus in the bottom of split type slips.Split type slips is inlayed connection with the connection overcoat.One adjustment screw rod is arranged at the top of its external sleeve.In the outside of jointing one hold-down nut is arranged.The adjustment screw rod is connect by screw thread with overcoat mutually.The method for using of the utility model is: jointing is passed sucker rod, on well head, load onto packing, sealing ring by spiral marking connection then.Following packing is the top of being located in jointing.Last packing is located in the top that connects overcoat.Load onto split type slips and overcoat then.Rotating jacket, connect overcoat and adjustment screw, respectively packing is up and down pressed, make packing closely contact, reach the purpose and the effect of sealing with sucker rod from radial and axial.When changing packing, open outlet valve earlier, the well casing internal pressure is released.Change operation again.Because packing is to be located in the jointing top, have split type slips in addition, make and extract and slips outside when changing packing, need only taking off that packing just comes out.To damage packing at an easy rate takes off.Need not take with instrument.Make the fair packing of state can not be damaged.Can continue to use.Therefore material consumption and cost of production have been reduced.Because have packing and sealing ring down, just equal to have increased by one sealing barrier in addition.Make sealing effectiveness improve more.Because have outlet valve, make operating personnel avoid by the injury of gases at high pressure.Solved the problem that existing product exists.
Description of drawings
Fig. 1 is the utility model structural representation
The split type slips 4-of 1-adjustment screw 2-overcoat 3-goes up packing 5-sends air valve 6-to connect packing 8 sealing ring 9-hold-doun nut 10-jointings under the overcoat 7-
Fig. 2 is that the utility model A is to view
The split type slips 6-of 3-connects overcoat
The specific embodiment
The utility model structure is shown in accompanying drawing: be made up of jointing 10 and overcoat 2.Have one to connect overcoat 6 in the outside of jointing 10.In jointing, have packing 7 down.On the neighboring of jointing, have seal groove, in seal groove, have sealing ring 8.Outside connecting, put and have outlet valve 5.Connecting overcoat is connect by screw thread with jointing mutually.Have packing 4 in its external sleeve 2.Have split type slips 3 between its external sleeve and the last packing, split type slips is two, about its external sleeve is interior a slice is set respectively.Split type slips is taper.Have the convex shape caulking groove at connection overcoat and split type slips joint portion.Have the convex shape abaculus in the bottom of split type slips.Split type slips is inlayed connection with the connection overcoat.One adjustment screw rod 1 is arranged at the top of its external sleeve.One hold-down nut 9 is arranged in the outside of jointing.The adjustment screw rod is connect by screw thread with overcoat mutually.
Claims (1)
1. oil well is used packing box, it is characterized in that: have one to connect overcoat (6) in the outside of jointing (10), in jointing, have packing (7) down; On the neighboring of jointing, have seal groove, in seal groove, have sealing ring (8), outside connecting, put and have outlet valve (5); Have packing (4) in its external sleeve (2); Have split type slips (3) between its external sleeve and the last packing, split type slips is two, and split type slips is taper; Have the convex shape caulking groove at connection overcoat and split type slips joint portion; Have the convex shape abaculus in the bottom of split type slips, an adjustment screw rod (1) is arranged at the top of its external sleeve, and a hold-down nut (9) is arranged in the outside of jointing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120355530XU CN202228035U (en) | 2011-09-08 | 2011-09-08 | Packing box for oil well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120355530XU CN202228035U (en) | 2011-09-08 | 2011-09-08 | Packing box for oil well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202228035U true CN202228035U (en) | 2012-05-23 |
Family
ID=46078623
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120355530XU Expired - Fee Related CN202228035U (en) | 2011-09-08 | 2011-09-08 | Packing box for oil well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202228035U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104209918A (en) * | 2014-09-09 | 2014-12-17 | 徐承韬 | Plunger pump packing pressing skeleton and application method |
| CN111520097A (en) * | 2020-06-08 | 2020-08-11 | 中国石油天然气股份有限公司 | Packing adding tool for rotary oil pumping unit |
-
2011
- 2011-09-08 CN CN201120355530XU patent/CN202228035U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104209918A (en) * | 2014-09-09 | 2014-12-17 | 徐承韬 | Plunger pump packing pressing skeleton and application method |
| CN104209918B (en) * | 2014-09-09 | 2016-05-25 | 徐承韬 | Plunger displacement pump packing compresses skeleton and application process |
| CN111520097A (en) * | 2020-06-08 | 2020-08-11 | 中国石油天然气股份有限公司 | Packing adding tool for rotary oil 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: 20120523 Termination date: 20130908 |