CN2554337Y - Well head polish rod self-lubricating anti-corroscive devcie - Google Patents
Well head polish rod self-lubricating anti-corroscive devcie Download PDFInfo
- Publication number
- CN2554337Y CN2554337Y CN 02214741 CN02214741U CN2554337Y CN 2554337 Y CN2554337 Y CN 2554337Y CN 02214741 CN02214741 CN 02214741 CN 02214741 U CN02214741 U CN 02214741U CN 2554337 Y CN2554337 Y CN 2554337Y
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- CN
- China
- Prior art keywords
- shell body
- housing
- internal diameter
- liner
- base
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a well head polish rod self-lubricating anti-corrosive device which is composed of a columnar shell body, a press cap on the upper part of the shell body, and a base under the shell body. The utility model is characterized in that a polish rod running hole is arranged in the center of the press cap for matching with threads of shell body; the base and the shell body are integrally arranged; the internal diameter of the base is smaller than that of the shell body, the base seat is provided with inner threads. A columnar liner with micro holes is sheathed in the shell body; the internal diameter of the liner is a bit larger than the external diameter of the polish rod; the external diameter of the liner is smaller than the internal diameter of the shell body. The bottom end of the liner seats on a platform at the reducing diameter position of shell body and the upper end is on the middle upper part of the shell body. A cylinder is pressed under the press cap; the lower part of the cylinder is sheathed in the annular space between the liner and the shell body. A spiral spring is arranged in the annular space; the lower end of spring is provided with a columnar plunger; the lubricating-oil is filled under the plunger; the amount of the lubricating-oil extruded from the micro holes on the liner is controlled by the degree of tightness of the press cap, and the lubricating goal of the polish rod is achieved.
Description
One, technical field: the utility model relates to the wellhead polish rod self-lubricating anti-corrosive apparatus that a kind of rod-pumped well is used.
Two, background technology: the oil field enters to be developed mid-term, high water-cut well is many, low production capacity well is many, these two kinds lubricated bad to polished rod, one is that oil is few lubricated bad to polished rod, one be half a day not fuel-displaced long-time nothings oil polished rod is lubricated, thereby cause in the polished rod sealer rubber packing to grind away soon, the wearing and tearing packing is faster, has increased labour intensity for the oil recovery worker.Look into by retrieval newly, finding has a kind of " automatic lubrication type polished rod sealer " (notification number N214656,1), and the major defect of this automatic lubrication type polished rod sealer is a complex structure, on-the-spot installation inconvenience, and cost is high-leveled and difficult with popularization.
Three, summary of the invention: the purpose of this utility model is for a kind of simple in structure, operation easily, the lubricated anti-corrosive apparatus of the polished rod that cost is low, and this device is made up of the pressure cap on cylindrical housings, the housing, the base under the housing.It is characterized in that cylindrical housings.In be with the interior cover that is provided with micropore, the internal diameter of interior cover is slightly larger than the polished rod external diameter, the external diameter of interior cover is less than the internal diameter of housing, interior cover bottom seat is on the platform at shell reducing place, interior set upper side is in the middle and upper part of housing; Pressure cap presses down a cylinder, annular space in the cylinder bottom is enclosed between cover and the housing, be provided with helical spring in the annular space, the spring lower end is provided with cylindrical piston, fill lubrication oil below the piston, the pressure cap center is provided with polished rod operation hole and housing threaded engagement, base and housing are made as one, and the internal diameter of base is less than the internal diameter of housing and be provided with internal thread, how much reach lubricated polished rod purpose with what the degree of tightness control lubrication oil of pressure cap was extruded in the interior cover micropore.
The utility model can guarantee that polished rod works having under the lubricated part all the time, has reduced dry grinding, has slowed down corrosion, prolongs the application life of polished rod and packing.Rate when having reduced the production that the stop pumping time improved oil well.
Four, description of drawings: Fig. 1-wellhead polish rod self-lubricating anti-corrosive apparatus.
Five, the specific embodiment: the utility model is made up of the pressure cap 1 on cylindrical housings 7, housing top, the base 5 under the housing, it is characterized in that being arranged with in the housing the cylindrical interior cover 2 of micropore, the internal diameter of interior cover 2 is slightly larger than the external diameter of polished rod, and its external diameter is less than the internal diameter of housing 7; Interior cover bottom seat is on the platform at housing 7 reducing places, and interior set upper side is in the middle and upper part of housing 7; Pressure cap 1 presses down a cylinder 2, annular space in cylinder 2 bottoms are enclosed between cover 4 and the housing 7, be provided with helical spring 3 in the annular space, the spring lower end is provided with fills lubrication oil below a circular piston 6, the piston, pressure cap 1 center is provided with polished rod operation hole and housing 7 threaded engagement, base 5 is made as one with housing 7, and the internal diameter of base 5 is less than the internal diameter of housing 7, and establishes internal thread.Wellhead polish rod self-lubricating anti-corrosive apparatus and the present supporting use of packing box.During installation, the packing box pressure cap is taken off, whorl of base is connected in the well head packing and closes, and relies on the spanner side that connects base position that packing is tightened, and this device promptly installs at the well head place.Wellhead polish rod self-lubricating anti-corrosive apparatus is after well head installs, and spring has stored certain energy, can focus bar automatically and packing is lubricated.After the lubricant medium in the closed chamber uses, can be with the pressure gun lubricant medium of in closed chamber, annotating.This device does not influence the normal replacing and the adjustment of packing, need to change or when adjusting packing, the screw thread that connects base position is unclamped get final product.Behind well or stripper well well head mounting shaft mouth polish rod self-lubricating anti-corrosive apparatus, can lubricate polished rod and packing, unlubricated friction between change well head packing and the polished rod is into there being lubrication friction, prolong the application life of polished rod and packing, through on-the-spot test, compare with the oil well that this device is not installed, install that can to improve rod-pumped well behind this device be efficient 2%-3%.
Claims (1)
1, a kind of wellhead polish rod self-lubricating anti-corrosive apparatus is made up of the pressure cap on cylindrical housings, housing top, the base under the housing.It is characterized in that the pressure cap center is provided with polished rod operation hole, with the housing threaded engagement, base and housing are made as one, the internal diameter of base is less than the internal diameter of housing body, and be provided with internal thread, be with the cylindrical interior cover that is provided with micropore in the housing, the internal diameter of interior cover is slightly larger than the external diameter of polished rod, external diameter of cover is less than the internal diameter of housing in it, interior cover bottom seat is on the platform at shell reducing place, the upper end is in the middle and upper part of housing, pressure cap presses down a cylinder, and the annular space in the cylinder bottom is enclosed between cover and the housing is provided with helical spring in the annular space, the spring lower end is provided with a cylindrical piston, fill lubrication oil below the piston, control the amount of extruding lubrication oil from interior cover micropore, reach lubricated polished rod purpose with the pressure cap degree of tightness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02214741 CN2554337Y (en) | 2002-05-16 | 2002-05-16 | Well head polish rod self-lubricating anti-corroscive devcie |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02214741 CN2554337Y (en) | 2002-05-16 | 2002-05-16 | Well head polish rod self-lubricating anti-corroscive devcie |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2554337Y true CN2554337Y (en) | 2003-06-04 |
Family
ID=33694011
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02214741 Expired - Fee Related CN2554337Y (en) | 2002-05-16 | 2002-05-16 | Well head polish rod self-lubricating anti-corroscive devcie |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2554337Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111119780A (en) * | 2019-12-25 | 2020-05-08 | 刘光明 | Packing box for oil exploitation |
-
2002
- 2002-05-16 CN CN 02214741 patent/CN2554337Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111119780A (en) * | 2019-12-25 | 2020-05-08 | 刘光明 | Packing box for oil exploitation |
| CN111119780B (en) * | 2019-12-25 | 2021-10-29 | 大安鸿源管业有限公司 | Packing box for oil exploitation |
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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 |