CN203584358U - Self-lubricating hole mouth sealing packing box at center of adjustable pumping unit polish rod - Google Patents
Self-lubricating hole mouth sealing packing box at center of adjustable pumping unit polish rod Download PDFInfo
- Publication number
- CN203584358U CN203584358U CN201320838801.6U CN201320838801U CN203584358U CN 203584358 U CN203584358 U CN 203584358U CN 201320838801 U CN201320838801 U CN 201320838801U CN 203584358 U CN203584358 U CN 203584358U
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- China
- Prior art keywords
- pipe nipple
- lubricating
- packing
- short sections
- polish rod
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- Expired - Fee Related
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Abstract
The utility model discloses a self-lubricating hole mouth sealing packing box at the center of an adjustable pumping unit polish rod. The self-lubricating hole mouth sealing packing box consists of short sections, a hole mouth stripper rubber valve, a lubricating device, a packing pad, a gland and a packing pressing cap; after the polish rod is adjusted to be centered by utilizing the movement of the movable short sections at the upper ends of the short sections, glands of the short sections are connected with the movable short sections at the upper end and the fixed short sections at the lower end firmly through fastening with four screw nuts. The maximum distances between the movable short sections at the upper end and the fixed short sections at the lower end can be 6mm, so that operation difficulty caused by hole mouth deviation generally can be met; during the installation process, the centering condition of the polish rod at the hole mouth is adjusted through the movable short sections at the upper ends, thus the service cycles of a seal ring and the packing box are prolonged, the service life of the polish rod is prolonged, and the oil well maintenance-free period is prolonged; during the working process of a pumping unit, the friction force between the polish rod and gland packing can be reduced through the effect of lubricating oil, the temperature of the generation of heat by friction is reduced, and the polish rod is prevented from being contaminated and corroded by a corrosive medium inside the well.
Description
Technical field
The utility model relates to the well head sealing packing box at the adjustable oil-extractor polish-rod of a kind of self lubricating center.
Technical background
Jilin Oil Field belongs to low-permeability oil field, and mature fault and the oil reservoir difference that longitudinally absorbs water is large, and the individual layer phenomenon that absorbs water is in a large number general, causes well water to rise, and oil production declines.In manufacturing process, because the installation of oil pumper is defective, cause the reasons such as well head Disalignment, down-hole to cause polished rod and well head deflection, packing to be not easy to add at the scene and thereby packing leakage phenomena very easily occurs quick abrasion.And come in contact because deflection causes packing box Glan, rubber valve and polished rod, in the normal production of oil pumper, producing wearing and tearing, oil production declines.In order to eliminate this situation, in real work, the adjustment walking beam school oil pumpers that adopt change the error of centralization more, not only labour intensity still can not reach requirement greatly but also after adjusting sometimes, finally can only adopt and reinstall oil pumper and proofread and correct, not only reduced packing life cycle, strengthened oil recovery work working strength, and packing pad, packing box, polished rod life cycle are short, change and frequently greatly increase cost.
Summary of the invention
The purpose of this utility model is to provide the well head sealing packing box at the adjustable oil-extractor polish-rod of a kind of self lubricating center, and the adjustable polished rod of the utility model is placed in the middle, simple and reasonable, easy for installation, and energy-conserving and environment-protective are corrosion-resistant, wear-resistant, good sealing effect.
The utility model is by pipe nipple, wellhead sealing rubber valve, lubricating arrangement, packing pad, Glan, packing pressure cap forms, packing pressure cap has internal thread and is connected with the external screw thread of lube plant upper end, packing pad and Glan are between packing pressure cap and lubricating arrangement, lubricating arrangement middle part has lubricating chamber, in lubricating chamber, be marked with lubricating grease or lubrication oil, packing pad is also equipped with in lubricating chamber bottom, lubricating arrangement offers oil filler point and grease nipple, lubricating arrangement lower end has internal thread, lubricating arrangement is connected with the valve body upper external screw thread of wellhead sealing rubber valve by internal thread, in the left and right through hole of valve body, there is guide rail, stripper rubber and slip iron core are screwed, on slip iron core, there is guide rail groove, leading screw and handle are fastened on after slip iron core, end cap inside has internal thread to be connected with the external screw thread of valve body, there is screwed hole at end cap center, leading screw is spirally connected and is located in the screwed hole of end cap, valve body lower end external screw thread is connected with pipe nipple movable upper end pipe nipple internal thread, by movable upper end pipe nipple, lower end, fixedly pipe nipple, pipe nipple platen and bolt and nut form pipe nipple, the screw thread fixing hole diameter of movable upper end pipe nipple is greater than fixedly short-section thread fixing hole diameter of lower end, the internal diameter of pipe nipple platen is greater than the external diameter of movable upper end pipe nipple, movable upper end pipe nipple and lower end fixedly pipe nipple are stacked together, pipe nipple platen is enclosed within on movable upper end pipe nipple, screw rod in bolt and nut passes fixedly pipe nipple of pipe nipple platen, movable upper end pipe nipple and lower end, with nut, fixes.
The beneficial effects of the utility model:
1, in installation process, by movable upper end pipe nipple, regulate wellhead polish rod situation placed in the middle, thereby extend the life cycle of sealing ring and packing box, extend the application life of polished rod, extend oil well repair free period.
2, in the course of work of oil pumper, the effect by lubrication oil can reduce the frictional force between polished rod and airtight and watertight padding, reduces the temperature of frictional heat and prevents that polished rod is infected with the effect of corrosion by down-the hole corrosion medium.
Accompanying drawing explanation
Fig. 1 is sectional view of the present utility model.
Fig. 2 is perspective exploded view of the present utility model.
Fig. 3 is the utility model wellhead sealing rubber valve internal structure schematic perspective view.
Fig. 4 is use view of the present utility model.
The specific embodiment
Refer to shown in Fig. 1, Fig. 2 and Fig. 3, the present embodiment is comprised of pipe nipple 1, wellhead sealing rubber valve 2, lubricating arrangement 3, packing pad 4, Glan 5, packing pressure cap 6, packing pressure cap 6 has internal thread 61 and is connected with the external screw thread 31 of lube plant 3 upper ends, packing pad 4 and Glan 5 are between packing pressure cap 6 and lubricating arrangement 3, lubricating arrangement 3 middle parts have lubricating chamber 34, in lubricating chamber 34, be marked with lubricating grease or lubrication oil, packing pad 4 is also equipped with in 34 bottoms in lubricating chamber
The effect of principle of the present utility model and each several part: consult shown in Fig. 4;
The effect of pipe nipple 1: the movement that utilizes movable upper end pipe nipple 11 to polished rod A adjust placed in the middle after, with four bolt and nuts 14 by pipe nipple gland 13 and movable upper end pipe nipple 11 and lower end fixedly pipe nipple 12 be connected fastening firm.Movable upper end pipe nipple 11 and lower end be the pipe nipple 12 maximums 6mm that can stagger fixedly, can meet the operating difficulties generally partially causing due to well head.
The effect of wellhead sealing rubber valve 2: wellhead sealing rubber valve 2 is double-vane valve, two blocks of oil resistant stripper rubbers 24 are housed on flashboard, 210 liang of side handles 29 of rotary end cover, leading screw 28 precessions make to slide iron core 25 along guide rail 23 propellings, make the oil resistant stripper rubber 24 of front end hold polished rod A tightly, when two blocks of oil resistant stripper rubbers 24 are held polished rod A tightly, can rise and realize sealing function.Because using elastic gum part, thus when clamping polished rod A, can not damage polished rod, and also do not sting leakage.
The effect sealing wellhead of packing pad 4 and polished rod annular space.
The effect of lubricating arrangement 3: at pumpingh well fluid well not during fluid intermittently, there is dry grinding phenomenon in polished rod A and packing pad 4, frictional force increases will damage existing packing pad 4 very soon, now the lubricating grease in lubricating chamber 34 or lubrication oil will contact with polished rod, on polished rod A top layer, form oil film, reduce the temperature of polished rod A, reduce friction, extend the application life of packing pad 4, thereby extend the cycle of changing packing pad 4.Make polished rod A anticorrosion, extend polished rod A application life, reduce because of polished rod A corrosion fracture cause stop well operations phenomenon, rate during assurance oil pump running.
The effect of Glan 5 and packing pressure cap 6: sealing is packing box fixedly.
Claims (1)
1. the well head sealing packing box at the adjustable oil-extractor polish-rod of a self lubricating center, it is characterized in that: be by pipe nipple (1), wellhead sealing rubber valve (2), lubricating arrangement (3), packing pad (4), Glan (5), packing pressure cap (6) forms, packing pressure cap (6) has internal thread (61) and is connected with the external screw thread (31) of lube plant (3) upper end, packing pad (4) and Glan (5) are positioned between packing pressure cap (6) and lubricating arrangement (3), lubricating arrangement (3) middle part has lubricating chamber (34), lubricating chamber is marked with lubricating grease or lubrication oil in (34), packing pad (4) is also equipped with in bottom in lubricating chamber (34), lubricating arrangement (3) offers oil filler point and grease nipple (32), lubricating arrangement (3) lower end has internal thread (33), lubricating arrangement (3) is connected with valve body (21) upper external screw thread (22) of wellhead sealing rubber valve (2) by internal thread (33), in the left and right through hole of valve body (21), there is guide rail (23), stripper rubber (24) is fixing by screw (26) with slip iron core (25), on slip iron core (25), there is guide rail groove (27), leading screw (28) is fastened on slip iron core (25) below with handle (29), end cap (210) inside has internal thread (211) to be connected with the external screw thread (214) of valve body (21), there is screwed hole (212) at end cap (210) center, leading screw (28) is spirally connected and is located in the screwed hole (212) of end cap (210), valve body (21) lower end external screw thread (213) is connected with pipe nipple (1) movable upper end pipe nipple (11) internal thread (113), pipe nipple (1) is by movable upper end pipe nipple (11), lower end is pipe nipple (12) fixedly, pipe nipple platen (13) and bolt and nut (14) form, the screw thread fixing hole diameter (111) of movable upper end pipe nipple (11) is greater than fixedly pipe nipple (12) screw thread fixing hole diameter (121) of lower end, the internal diameter (131) of pipe nipple platen (13) is greater than the external diameter (112) of movable upper end pipe nipple (11), movable upper end pipe nipple (11) and lower end fixedly pipe nipple (12) are stacked together, pipe nipple platen (13) is enclosed within on movable upper end pipe nipple (11), screw rod in bolt and nut (14) is through pipe nipple platen (13), movable upper end pipe nipple (11) and lower end be pipe nipple (12) fixedly, with nut, fix.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320838801.6U CN203584358U (en) | 2013-12-18 | 2013-12-18 | Self-lubricating hole mouth sealing packing box at center of adjustable pumping unit polish rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320838801.6U CN203584358U (en) | 2013-12-18 | 2013-12-18 | Self-lubricating hole mouth sealing packing box at center of adjustable pumping unit polish rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203584358U true CN203584358U (en) | 2014-05-07 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320838801.6U Expired - Fee Related CN203584358U (en) | 2013-12-18 | 2013-12-18 | Self-lubricating hole mouth sealing packing box at center of adjustable pumping unit polish rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203584358U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105089538A (en) * | 2015-05-22 | 2015-11-25 | 克拉玛依胜利高原机械有限公司 | Sealing structure of rod oil producing wellhead polish rod |
| CN112647884A (en) * | 2021-01-07 | 2021-04-13 | 中国石油天然气股份有限公司 | Christmas tree wellhead sealing device |
-
2013
- 2013-12-18 CN CN201320838801.6U patent/CN203584358U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105089538A (en) * | 2015-05-22 | 2015-11-25 | 克拉玛依胜利高原机械有限公司 | Sealing structure of rod oil producing wellhead polish rod |
| CN105089538B (en) * | 2015-05-22 | 2017-12-01 | 克拉玛依胜利高原机械有限公司 | A kind of sealing structure for having bar production wellhead polished rod |
| CN112647884A (en) * | 2021-01-07 | 2021-04-13 | 中国石油天然气股份有限公司 | Christmas tree wellhead sealing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140507 Termination date: 20141218 |
|
| EXPY | Termination of patent right or utility model |