CN201535147U - Bias-adjustable type wellhead packing box for rod-pumped well - Google Patents
Bias-adjustable type wellhead packing box for rod-pumped well Download PDFInfo
- Publication number
- CN201535147U CN201535147U CN200920226663XU CN200920226663U CN201535147U CN 201535147 U CN201535147 U CN 201535147U CN 200920226663X U CN200920226663X U CN 200920226663XU CN 200920226663 U CN200920226663 U CN 200920226663U CN 201535147 U CN201535147 U CN 201535147U
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- packing
- packing box
- pressure cap
- bias
- lined
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- Expired - Fee Related
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Abstract
The utility model relates to a bias-adjustable type wellhead packing box for a rod-pumped well, which comprises a pressure cap, a gland, a packing box, a flexible rubber cylinder, a lining tube, a packing and a cylindrical pad, and is characterized in that the inner diameter of the packing box is 87 mm; the flexible rubber cylinder is lined on the inner layer and the outer layer of the packing box, the lining tube is lined on the middle layer thereof, and the packing is mounted on the inner layer thereof; the teflon cylindrical pad is padded at the lower ends of the packing, the lining tube and the flexible rubber cylinder; the threaded pressure cap are arranged at the upper part of the packing box; the teflon gland is arranged between the pressure cap and the packing; and a male thread or a flange is arranged at the lower part of the packing box. By virtue of the flexible rubber tube, the bias-adjustable type wellhead packing box can adjust the eccentric wearing degree of a polished rod through the elasticity of the rubber cylinder; and by virtue of the teflon cylindrical pad, the bias-adjustable type wellhead packing box can prevent direct friction of the polished rod and a steel body and prolong the service life of the polished rod and the packing.
Description
One, technical field
The utility model relates to the deviation adjustment type oil pumper well head packing box that a kind of oil pumper well head is used.
Two, background technology
The oil field mainly is a mechanical oil recovery at the oil production method of development late stage.The maximum defect of mechanical oil recovery existence at present is exactly that oil pumper suspension point, polished rod and well head are difficult to just on a center line, cause polished rod mill partially and the packing mill inclined to one side, cause the well head leakage of oil, fuel injection event also can take place in serious, make well head always oil, be difficult to clean cleaning, become oil recovery workman's a big worry, also lose a lot of crude oil simultaneously, cause very big economic loss to the oil field.
Three, summary of the invention
The purpose of this utility model provides a kind of deviation adjustment type oil pumper well head packing box, solves the problem of the well head leakage of oil of above-mentioned prior art existence.
The technical solution of the utility model realizes in the following manner:
The utility model is by pressure cap, Glan, packing box, flexible packing element, bushing pipe, packing and cylinder pad are formed, it is characterized in that with the packing box internal diameter be 87mm, the packing box ectonexine is lined with flexible packing element, and the middle level is lined with bushing pipe, and internal layer is equipped with packing, be lined with polytetrafluoroethylene (PTFE) cylinder pad in packing, bushing pipe and flexible packing element lower end, be provided with the pressure cap that is threaded on packing box top, between pressure cap and packing, be provided with the polytetrafluoroethylene (PTFE) Glan, be provided with male thread or flange in the bottom of packing box.
Be provided with the circular hole of symmetry in the bushing pipe upper end, be provided with the undergauge step in the lower end.
The utility model has designed flexible sebific duct, leans on the eccentric wear degree of the adjustable lay the grain bar of elasticity of packing element; Design polytetrafluoroethylene (PTFE) cylinder pad, prevented polished rod and steel body direct friction, prolonged the application life of polished rod and packing.
Four, description of drawings
Accompanying drawing-structural representation of the present utility model
The flexible packing element 5-of 1-pressure cap 2-Glan 3-packing box 4-bushing pipe 6-packing 7-cylinder pad 8-polished rod among the figure
Five, the specific embodiment:
For further disclosing the technical solution of the utility model, elaborate by embodiment below in conjunction with Figure of description:
The utility model is by pressure cap 1, Glan 2, packing box 3, flexible packing element 4, bushing pipe 5, packing 6 and cylinder pad 7 are formed, it is characterized in that with the packing box internal diameter be 87mm, the packing box ectonexine is lined with flexible packing element, and the middle level is lined with bushing pipe, and internal layer is equipped with packing, be lined with polytetrafluoroethylene (PTFE) cylinder pad in packing, bushing pipe and flexible packing element lower end, be provided with the pressure cap that is threaded on packing box top, between pressure cap and packing, be provided with the polytetrafluoroethylene (PTFE) Glan, be provided with male thread or flange in the bottom of packing box.
When using the utility model, joint or flange at well head configuration band box thread are connected one with well head.Polished rod 8 pumps when oil pumper runs well, and at first polished rod extruding packing 6 is to sidesway fortune when polished rod 8 eccentric wear well heads, and packing extruding bushing pipe 5, bushing pipe push flexible packing element 4 to same side shifting, have alleviated hard friction power, have avoided the hard grind of packing to decrease; If the eccentric wear degree is very big; what polished rod second touched is Glan 2 and cylinder pad 7; because of Glan and the polytetrafluoroethylmaterial material of cylinder pad are made; polished rod does not does not wear and tear; after polished rod eccentric wear section; the packing bushing pipe can reset by nature under the effect of flexible packing element, has protected polished rod and packing, has improved the application life of polished rod and packing.Can hook the circular hole of bushing pipe upper end with instrument when changing packing, propose packing is whole, finishing changing can be whole the whole adding of packing packing box behind the packing.(not having under the situation of the ability of overflowing at oil well) is time saving and energy saving.
Claims (2)
1. deviation adjustment type oil pumper well head packing box, by pressure cap, Glan, packing box, flexible packing element, bushing pipe, packing and cylinder pad are formed, it is characterized in that with the packing box internal diameter be 87mm, the packing box ectonexine is lined with flexible packing element, the middle level is lined with bushing pipe, internal layer is equipped with packing, be lined with polytetrafluoroethylene (PTFE) cylinder pad in packing, bushing pipe and flexible packing element lower end, be provided with the pressure cap that is threaded on packing box top, between pressure cap and packing, be provided with the polytetrafluoroethylene (PTFE) Glan, be provided with male thread or flange in the bottom of packing box.
2. deviation adjustment type oil pumper well head packing box according to claim 1 is characterized in that being provided with symmetrical circular hole in the bushing pipe upper end, is provided with the undergauge step in the lower end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920226663XU CN201535147U (en) | 2009-09-12 | 2009-09-12 | Bias-adjustable type wellhead packing box for rod-pumped well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920226663XU CN201535147U (en) | 2009-09-12 | 2009-09-12 | Bias-adjustable type wellhead packing box for rod-pumped well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201535147U true CN201535147U (en) | 2010-07-28 |
Family
ID=42534928
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920226663XU Expired - Fee Related CN201535147U (en) | 2009-09-12 | 2009-09-12 | Bias-adjustable type wellhead packing box for rod-pumped well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201535147U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102434132A (en) * | 2011-12-23 | 2012-05-02 | 甘肃省化工研究院 | Elastic alignment pipe component for perforation of oil and gas wells |
-
2009
- 2009-09-12 CN CN200920226663XU patent/CN201535147U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102434132A (en) * | 2011-12-23 | 2012-05-02 | 甘肃省化工研究院 | Elastic alignment pipe component for perforation of oil and gas wells |
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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: 20100728 Termination date: 20110912 |