CN108661590B - High-pressure flexible connection polish rod sealer - Google Patents
High-pressure flexible connection polish rod sealer Download PDFInfo
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- CN108661590B CN108661590B CN201810860152.7A CN201810860152A CN108661590B CN 108661590 B CN108661590 B CN 108661590B CN 201810860152 A CN201810860152 A CN 201810860152A CN 108661590 B CN108661590 B CN 108661590B
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- packing box
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- sleeve
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/02—Surface sealing or packing
- E21B33/03—Well heads; Setting-up thereof
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/10—Geothermal energy
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
- Sealing Devices (AREA)
Abstract
The invention discloses a high-pressure flexible connection polish rod sealer, which comprises a lower joint and an elastic deviation-adjusting hose assembly, wherein the lower joint is arranged on a wellhead through a tee joint, the lower joint is provided with the elastic deviation-adjusting hose assembly, and the elastic deviation-adjusting hose assembly is provided with a sealing packing box; the sealing packing box comprises a packing box main body, the packing box main body is a four-way joint, a spring mounting groove is formed in a cavity at the upper end of the packing box main body, an upper connecting sleeve is arranged on an outer side interface of the upper end of the packing box main body, a spring seat is arranged at the bottom end of an inner cavity of the upper connecting sleeve, one end of a spring is arranged on the spring seat, the other end of the spring is arranged in the spring mounting groove, a conical mounting groove is further formed in the inner cavity of the upper connecting sleeve, a conical packing is arranged in the conical mounting groove, a sliding sealing sleeve is arranged on the outer side of the conical packing, a first O-shaped sealing ring is arranged on the outer side of the sliding sealing sleeve, a square asbestos packing is arranged at the upper end of the sliding sealing sleeve, a packing pressing sleeve is arranged on the square asbestos packing, and a pressing cover with a handle is arranged on the packing pressing sleeve. The sealer solves the problem of oil leakage at the wellhead and has good anti-bias effect.
Description
Technical Field
The invention relates to the technical field of oilfield sealing, in particular to a high-pressure flexible connection polish rod sealer.
Background
In the process of producing crude oil in an oil field, more than 90% of oil wells adopt an oil pumping unit to drive an oil pumping rod to transfer kinetic energy to an underground oil well pump in a reciprocating manner, the crude oil is lifted to a ground control wellhead by the underground oil well pump, and the crude oil enters a gathering and transporting process through the control wellhead, so that the purpose of collecting the crude oil is achieved.
The control wellhead is provided with an oil pumping polished rod sealing device, a traditional sealing device adopts a method of adding a colloid gasket or a belt rib into a stuffing box and extruding by external force to achieve the sealing purpose, the sealing performance is poor, the sealing period is short, the difficulty of maintenance of operators is high, the labor intensity is high, and the running load of the oil pumping machine is increased while the abrasion to the oil pumping polished rod is serious.
Meanwhile, because the sucker rod moves up and down, certain offset can be generated, so that the sealing device is worn, but the existing sealing device cannot well prevent or reduce eccentric wear, so that the sealing device is damaged fast, and the construction cost is increased.
Disclosure of Invention
In order to solve the problems, the invention provides the high-pressure flexible connection polish rod sealer which solves the problem of oil leakage at the wellhead and has good anti-bias effect, so that the abrasion speed of a sealing device is reduced.
The invention is realized by the following technical scheme:
the high-pressure flexible connection polish rod sealer comprises a lower joint and an elastic deviation-adjusting hose assembly, wherein the lower joint is arranged on a wellhead through a tee joint, the elastic deviation-adjusting hose assembly is arranged on the lower joint, and a sealing packing box is arranged on the elastic deviation-adjusting hose assembly; the sealing packing box comprises a packing box main body, the packing box main body is a four-way joint, a spring mounting groove is formed in a cavity at the upper end of the packing box main body, an upper connecting sleeve is mounted on an outer side interface at the upper end of the packing box main body, a spring seat is arranged at the bottom end of an inner cavity of the upper connecting sleeve, one end of the spring is mounted on the spring seat, the other end of the spring is mounted in the spring mounting groove at the upper end of the packing box main body, a conical mounting groove is formed in an inner cavity of the upper connecting sleeve above the spring seat, a conical packing is mounted in the conical mounting groove, a sliding sealing sleeve is mounted on the outer side of the conical packing, a first O-shaped sealing ring is mounted on the outer side of the sliding sealing sleeve, a packing pressing sleeve is mounted on the square asbestos packing, a pressing cover is mounted on the packing pressing cover, and a handle is mounted on the pressing cover.
The elastic deviation-adjusting hose assembly comprises a high-pressure flexible connecting tube and two connectors at two ends, wherein the two connectors are arranged at two ends of the high-pressure flexible connecting tube, the connector at the lower end is screwed on the lower connector, and the connector at the upper end is screwed on a cavity at the lower end of the packing box main body.
The packing box is characterized in that rubber righting sealing blocks are symmetrically arranged in cavities at the left end and the right end of the packing box main body, pin shafts are arranged on each rubber righting sealing block, an adjusting sleeve is arranged outside each rubber righting sealing block, a plurality of second O-shaped sealing rings are arranged outside the bottom end of the adjusting sleeve, the bottom end of the adjusting screw is arranged in a groove of the adjusting sleeve, elastic check rings and split rings for holes are arranged between the bottom end of the adjusting screw and the groove of the adjusting sleeve, and the adjusting screw is fixed on the cavity at any one end of the left end and the right end of the packing box main body through round nuts.
Compared with the prior art, the invention has the following beneficial technical effects:
the high-pressure flexible connection polish rod sealer provided by the invention has the advantages that the high-pressure flexible connection pipe is arranged, so that the contact between the polish rod of the oil pumping unit and the rubber centralizing sealing block or the packing becomes point contact when the polish rod of the oil pumping unit shakes leftwards and rightwards, namely, when the polish rod of the oil pumping unit shakes rightwards, the whole polish rod of the oil pumping unit is shaked rightwards due to the arrangement of the high-pressure flexible connection pipe on the lower joint, and when the polish rod of the oil pumping unit moves leftwards, the whole polish rod of the oil pumping unit shakes leftwards, the traditional surface contact mode is changed into the point contact mode due to the change of the contact mode, the abrasion of the packing or the rubber centralizing sealing block is reduced, the use speed of the packing or the rubber centralizing sealing block is prolonged, and the replacement speed is reduced, so that the cost is reduced, the anti-deflection effect of the high-pressure flexible connection polish rod sealer is good, the friction mode is always point connection, and the problem of the polish rod of the oil pumping unit is solved.
Further, due to the fact that the rubber centralizing sealing block is arranged, when packing is replaced, the packing is used for sealing a polished rod of the oil pumping unit, oil gas at the bottom layer is prevented from being sprayed out of a wellhead after being sprayed up, packing replacement is affected, meanwhile pressure release is not needed, and packing is directly replaced.
Drawings
Fig. 1 is a schematic diagram of a high-pressure flexible connection polish rod sealer provided by the invention.
Wherein, 1 is a handle; 2 is a gland; 3 is a packing pressing sleeve; 4 is a square asbestos packing; 5 is an O-shaped sealing ring; 6 is a sliding seal sleeve; 7 is a conical packing; 8 is an upper connecting sleeve; 9 is a spring seat; 10 is a spring; 11 is an adjusting screw rod; 12 is a round nut; 13 is an elastic retainer ring for holes; 14 is a split washer; 15 is an adjusting sleeve; 16 is an O-shaped sealing ring; 17 is a pin shaft; 18 is a rubber righting sealing block; 19 is a packing box main body; 20 is an elastic deflection-adjusting hose assembly; 21 is a lower joint; 22 is a jackscrew; 23 is a cylindrical head jackscrew.
Detailed Description
The invention will now be described in further detail with reference to specific examples, which are intended to illustrate, but not to limit, the invention.
Referring to fig. 1, the high-pressure flexible connection polish rod sealer comprises a lower joint 21 and an elastic deviation-adjusting hose assembly 20, wherein the lower joint 21 is arranged on a wellhead through a tee joint, the elastic deviation-adjusting hose assembly 20 is arranged on the lower joint 21, and a sealing packing box is arranged on the elastic deviation-adjusting hose assembly 20; the sealing packing box comprises a packing box main body 19, the packing box main body 19 is a four-way joint, a spring mounting groove is formed in a cavity at the upper end of the packing box main body 19, an upper connecting sleeve 8 is mounted on an outer side interface at the upper end of the packing box main body 19, a spring seat 9 is arranged at the bottom end of an inner cavity of the upper connecting sleeve 8, one end of a spring 10 is mounted on the spring seat 9, the other end of the spring 10 is mounted in a spring mounting groove at the upper end of the packing box main body 19, a conical mounting groove is formed in an inner cavity of the upper connecting sleeve 8 above the spring seat 9, a conical packing 7 is mounted in the conical mounting groove, a sliding sealing sleeve 6 is mounted at the outer side of the conical packing 7, a first O-shaped sealing ring 5 is mounted at the outer side of the sliding sealing sleeve 6, a square asbestos packing 4 is mounted at the upper end of the sliding sealing sleeve 6, a packing pressing cover 3 is mounted on the square asbestos packing 4, and a handle 1 is mounted on the pressing cover 2.
The elastic deviation-adjusting hose assembly 20 comprises a high-pressure flexible connecting pipe and two connectors at two ends, the two connectors are arranged at two ends of the high-pressure flexible connecting pipe, the connector at the lower end is screwed on the lower connector 21, the connector at the upper end is screwed on the cavity at the lower end of the packing box main body 19, when the sucker rod of the pumping unit moves up and down, left and right shaking can be generated, and at the moment, the elastic deviation-adjusting hose assembly can move left and right along with the left and right shaking of the sucker rod, so that the deviation-adjusting effect is achieved.
The packing box is characterized in that rubber centralizing sealing blocks 18 are symmetrically arranged in cavities at the left end and the right end of the packing box main body 19, pin shafts 17 are arranged on each rubber centralizing sealing block 18, an adjusting sleeve 15 is arranged outside each rubber centralizing sealing block 18, a plurality of second O-shaped sealing rings 16 are arranged outside the bottom end of the adjusting sleeve 15, the bottom end of an adjusting screw 11 is arranged in a groove of the adjusting sleeve 15, an elastic check ring 13 and an opening check ring 14 for holes are arranged between the bottom end of the adjusting screw 11 and the groove of the adjusting sleeve, the adjusting screw 11 is fixed on the cavities at any one of the left end and the right end of the packing box main body 19 through round nuts 12, two holes for fixing the adjusting screw 11 are respectively formed in shells at the left end and the right end of the packing box main body 19, a jackscrew 22 is arranged in one hole, and a cylindrical head jackscrew 23 is arranged in the air.
The spring is a belleville spring.
Further, the high-pressure flexible connecting pipe has the pressure resistance of more than 60 kg and is anti-eccentric wear, and meanwhile, the pipe is anti-corrosion, anti-aging, shock-resistant, anti-fatigue, oil-resistant, water-resistant, cold-resistant and high-pressure-resistant.
The high-pressure flexible connection polish rod sealer provided by the invention has the advantages that the high-pressure flexible connection pipe is arranged, so that the contact between the polish rod of the oil pumping unit and the rubber centralizing sealing block or the packing becomes point contact when the polish rod of the oil pumping unit shakes leftwards and rightwards, namely, when the polish rod of the oil pumping unit shakes rightwards, the whole polish rod of the oil pumping unit is shaked rightwards due to the arrangement of the high-pressure flexible connection pipe on the lower joint, and when the polish rod of the oil pumping unit moves leftwards, the whole polish rod of the oil pumping unit shakes leftwards, the traditional surface contact mode is changed into the point contact mode due to the change of the contact mode, the abrasion of the packing or the rubber centralizing sealing block is reduced, the use speed of the packing or the rubber centralizing sealing block is prolonged, and the replacement speed is reduced, so that the cost is reduced, the anti-deflection effect of the high-pressure flexible connection polish rod sealer is good, the friction mode is always point connection, and the problem of the polish rod of the oil pumping unit is solved.
Further, due to the fact that the rubber centralizing sealing block is arranged, when packing is replaced, the packing is used for sealing a polished rod of the oil pumping unit, oil gas at the bottom layer is prevented from being sprayed out of a wellhead after being sprayed up, packing replacement is affected, meanwhile pressure release is not needed, and packing is directly replaced.
Further, the device is provided with a rubber centralizing sealing block, a conical packing and a square asbestos packing for multiplex sealing, so that the sealing effect is ensured through multiplex sealing, and the sealing effect is ensured through the rubber centralizing sealing block and the square asbestos packing; simultaneously through setting up belleville spring, realized adjusting of gland regulation, spring regulation and butterfly regulation three kinds of mediation, sealed through threaded connection simultaneously, guaranteed sealed effect.
The foregoing has shown and described the basic principles and main features of the present invention and the advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (1)
1. The high-pressure flexible connection polish rod sealer is characterized by comprising a lower joint (21) and an elastic deviation adjusting hose assembly (20), wherein the lower joint (21) is arranged on a wellhead through a tee joint, the elastic deviation adjusting hose assembly (20) is arranged on the lower joint (21), and a sealing packing box is arranged on the elastic deviation adjusting hose assembly (20); the sealing packing box comprises a packing box main body (19), the packing box main body (19) is a four-way structure, a spring mounting groove is formed in a cavity at the upper end of the packing box main body (19), an upper connecting sleeve (8) is mounted on an outer side interface at the upper end of the packing box main body (19), a spring seat (9) is arranged at the bottom end of an inner cavity of the upper connecting sleeve (8), one end of a spring (10) is mounted on the spring seat (9), the other end of the spring is mounted in the spring mounting groove at the upper end of the packing box main body (19), a conical mounting groove is formed in an inner cavity of the upper connecting sleeve (8) above the spring seat (9), a conical packing (7) is mounted in the conical mounting groove, a sliding sealing sleeve (6) is mounted on the outer side of the conical packing (7), a first O-shaped sealing ring (5) is mounted on the outer side of the sliding sealing sleeve (6), a square asbestos packing (4) is mounted on the square asbestos packing (4), a packing (3) is mounted on the packing (3), and a gland (1) is mounted on the gland (2); the elastic deviation-adjusting hose assembly (20) comprises a high-pressure flexible connecting pipe and two connectors at two ends, wherein the two connectors are arranged at two ends of the high-pressure flexible connecting pipe, the connector at the lower end is screwed on the lower connector (21), and the connector at the upper end is screwed on a cavity at the lower end of the packing box main body (19); the packing box is characterized in that rubber righting sealing blocks (18) are symmetrically arranged in cavities at the left end and the right end of the packing box main body (19), pin shafts (17) are arranged on each rubber righting sealing block (18), an adjusting sleeve (15) is arranged outside each rubber righting sealing block (18), a plurality of second O-shaped sealing rings (16) are arranged outside the bottom end of the adjusting sleeve (15), the bottom end of the adjusting screw (11) is arranged in a groove of the adjusting sleeve (15), a circlip (13) and an opening retainer ring (14) for holes are arranged between the bottom end of the adjusting screw (11) and the groove of the adjusting sleeve, and the adjusting screw (11) is fixed on the cavity at any one end of the left end and the right end of the packing box main body (19) through round nuts (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810860152.7A CN108661590B (en) | 2018-08-01 | 2018-08-01 | High-pressure flexible connection polish rod sealer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810860152.7A CN108661590B (en) | 2018-08-01 | 2018-08-01 | High-pressure flexible connection polish rod sealer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108661590A CN108661590A (en) | 2018-10-16 |
| CN108661590B true CN108661590B (en) | 2023-11-24 |
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ID=63788921
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810860152.7A Active CN108661590B (en) | 2018-08-01 | 2018-08-01 | High-pressure flexible connection polish rod sealer |
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| Country | Link |
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| CN (1) | CN108661590B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2189223Y (en) * | 1993-12-08 | 1995-02-08 | 胜利石油管理局钻井工艺研究院 | Over-pressure protective device |
| WO2002004783A1 (en) * | 2000-07-07 | 2002-01-17 | Zeroth Technology Limited | Deformable member |
| CN200949441Y (en) * | 2006-04-21 | 2007-09-19 | 中国石油天然气股份有限公司 | Hose type anti-bias wear packing box |
| CN202300276U (en) * | 2011-09-23 | 2012-07-04 | 克拉玛依胜利高原机械有限公司 | Hosepipe following deflection-regulation polish rod sealer |
| CN103061705A (en) * | 2013-01-28 | 2013-04-24 | 黄胜志 | High-temperature long-acting polish rod sealing device |
| CN103590775A (en) * | 2013-11-06 | 2014-02-19 | 郑州光力科技股份有限公司 | Drill pipe sealing device, mining arrester and mining drilling device |
| CN106958430A (en) * | 2016-01-08 | 2017-07-18 | 于立成 | Rod beam-pumping unit well head sealing apparatus |
| CN207453943U (en) * | 2017-09-28 | 2018-06-05 | 中国石油集团西部钻探工程有限公司 | Soft contact component and contact type igniter |
| CN207485396U (en) * | 2017-11-13 | 2018-06-12 | 中国石油化工股份有限公司 | A kind of suitable high temperature High water cut heavy oil wells polished rod sealer |
| CN208486858U (en) * | 2018-08-01 | 2019-02-12 | 陕西鸿美实业有限公司 | High pressure is flexible coupling polished rod sealer |
-
2018
- 2018-08-01 CN CN201810860152.7A patent/CN108661590B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2189223Y (en) * | 1993-12-08 | 1995-02-08 | 胜利石油管理局钻井工艺研究院 | Over-pressure protective device |
| WO2002004783A1 (en) * | 2000-07-07 | 2002-01-17 | Zeroth Technology Limited | Deformable member |
| CN200949441Y (en) * | 2006-04-21 | 2007-09-19 | 中国石油天然气股份有限公司 | Hose type anti-bias wear packing box |
| CN202300276U (en) * | 2011-09-23 | 2012-07-04 | 克拉玛依胜利高原机械有限公司 | Hosepipe following deflection-regulation polish rod sealer |
| CN103061705A (en) * | 2013-01-28 | 2013-04-24 | 黄胜志 | High-temperature long-acting polish rod sealing device |
| CN103590775A (en) * | 2013-11-06 | 2014-02-19 | 郑州光力科技股份有限公司 | Drill pipe sealing device, mining arrester and mining drilling device |
| CN106958430A (en) * | 2016-01-08 | 2017-07-18 | 于立成 | Rod beam-pumping unit well head sealing apparatus |
| CN207453943U (en) * | 2017-09-28 | 2018-06-05 | 中国石油集团西部钻探工程有限公司 | Soft contact component and contact type igniter |
| CN207485396U (en) * | 2017-11-13 | 2018-06-12 | 中国石油化工股份有限公司 | A kind of suitable high temperature High water cut heavy oil wells polished rod sealer |
| CN208486858U (en) * | 2018-08-01 | 2019-02-12 | 陕西鸿美实业有限公司 | High pressure is flexible coupling polished rod sealer |
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| Publication number | Publication date |
|---|---|
| CN108661590A (en) | 2018-10-16 |
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Effective date of registration: 20240313 Address after: 710000 room 310, Jinxin international, No. 99 Heping Road, Beilin District, Xi'an City, Shaanxi Province Patentee after: Xi'an Yunlian Power Group Co.,Ltd. Country or region after: China Address before: 710000, Building 6, East of Changqing Weiyang Lake Garden, Dongfeng Road, Caotan Town, Weiyang District, Xi'an City, Shaanxi Province Patentee before: SHAANXI HONGMEI INDUSTRIAL CO.,LTD. Country or region before: China |
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Effective date of registration: 20240419 Address after: 710000 room 310, Jinxin international, No. 99 Heping Road, Beilin District, Xi'an City, Shaanxi Province Patentee after: Xi'an Xuanwa Power Group Co.,Ltd. Country or region after: China Address before: 710000 room 310, Jinxin international, No. 99 Heping Road, Beilin District, Xi'an City, Shaanxi Province Patentee before: Xi'an Yunlian Power Group Co.,Ltd. Country or region before: China |
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