CN107178333B - Polished rod sealer - Google Patents
Polished rod sealer Download PDFInfo
- Publication number
- CN107178333B CN107178333B CN201710609149.3A CN201710609149A CN107178333B CN 107178333 B CN107178333 B CN 107178333B CN 201710609149 A CN201710609149 A CN 201710609149A CN 107178333 B CN107178333 B CN 107178333B
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- China
- Prior art keywords
- sealing
- assembly
- polish rod
- packing
- wellhead
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- 238000007789 sealing Methods 0.000 claims abstract description 100
- 238000012856 packing Methods 0.000 claims abstract description 75
- 230000002265 prevention Effects 0.000 claims abstract description 18
- 238000006073 displacement reaction Methods 0.000 claims abstract description 16
- 238000004519 manufacturing process Methods 0.000 claims abstract description 7
- 239000003129 oil well Substances 0.000 claims abstract description 5
- 238000000034 method Methods 0.000 claims abstract description 4
- 238000003825 pressing Methods 0.000 claims description 17
- 239000002184 metal Substances 0.000 claims description 10
- 210000004907 gland Anatomy 0.000 claims description 6
- 239000003292 glue Substances 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 238000000926 separation method Methods 0.000 claims description 2
- 229910001220 stainless steel Inorganic materials 0.000 claims description 2
- 239000010935 stainless steel Substances 0.000 claims description 2
- 238000005086 pumping Methods 0.000 abstract description 19
- 239000003921 oil Substances 0.000 abstract description 10
- 230000000694 effects Effects 0.000 abstract description 5
- 239000010779 crude oil Substances 0.000 abstract description 3
- 238000002347 injection Methods 0.000 abstract description 2
- 239000007924 injection Substances 0.000 abstract description 2
- 229920000642 polymer Polymers 0.000 abstract description 2
- 238000010793 Steam injection (oil industry) Methods 0.000 abstract 1
- 238000003912 environmental pollution Methods 0.000 abstract 1
- 230000010354 integration Effects 0.000 abstract 1
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 239000011553 magnetic fluid Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
Images
Classifications
-
- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/40—Sealings between relatively-moving surfaces by means of fluid
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Pressure Vessels And Lids Thereof (AREA)
- Sealing Devices (AREA)
Abstract
A polish rod sealer comprises a main sealing assembly, a secondary sealing assembly and a deviation adjusting blowout prevention assembly. The method is characterized in that: the main sealing assembly is positioned at the upper part, the secondary sealing assembly is positioned at the middle part, and the deviation adjusting blowout prevention assembly is positioned at the lower part; when the main seal assembly realizes normal production of an oil well, the polish rod and the wellhead are sealed, the secondary seal assembly realizes temporary sealing when the main seal packing is replaced, the lower part of the deviation-adjusting blowout-preventing assembly is connected with the wellhead, the adjustment of the angle displacement and the horizontal displacement between the polish rod and the wellhead is realized, the polish rod and the wellhead are concentric, and the polish rod blowout-preventing function after breakage is realized. The hydraulic sealing device is novel in design and compact in structure, realizes hydraulic sealing, angular displacement and horizontal displacement, and blowout prevention and integration design, and is convenient to adjust and operate. The packing eccentric wear is reduced, the load of the pumping unit is reduced, the electric energy is saved, the packing sealing effect is good, and the packing sealing device is particularly suitable for sealing the wellhead of a pumping well in a thick oil steam injection and polymer injection area, avoids crude oil loss, prevents environmental pollution and improves the management level of an oil field.
Description
Technical Field
The invention relates to wellhead equipment of an oilfield pumping well, in particular to a polish rod sealer.
Background
In pumping well pumping, the pumping unit drives the polish rod, the pumping rod and the oil pump to reciprocate up and down to realize pumping, and the polish rod reciprocates up and down in the sealer to form dynamic seal with the polish rod through the packing. In production, due to the reasons of installation errors of the pumping unit, the foundation of the pumping unit, sinking of a wellhead pipeline and the like, an angle displacement and a horizontal displacement are generated between a suspension point of the pumping unit and the center of the wellhead, so that the wellhead and a polished rod are not centered, packing is eccentrically worn, load is increased, energy consumption is high, sealing is invalid, oil leakage of the wellhead occurs, in addition, due to the fact that the polished rod is subjected to alternating load when the pumping polished rod runs for a long time, fatigue fracture of the polished rod falls into a well, blowout phenomenon occurs, crude oil loss is caused, environment is polluted, and the improvement of the management level of an oil field is influenced. Therefore, the wellhead sealing, centering and broken rod blowout prevention of the pumping well are three technical problems of oilfield management, and especially the wellhead sealing difficulty of a thickened oil well and a polymer injection flooding well is higher.
At present, the polish rod sealer is more in variety, and conventional polish rod sealer relies on pressing cap compression packing axial, radial deformation to reach sealedly, and when rubber elasticity compression reaches the limit, just lose sealed effect, when changing the packing, need close both sides rubber gate, complex operation makes the polished rod take place the skew easily, causes to change the packing difficulty. An energy-saving anti-theft polarization-adjusting rod sealer, patent number: 200420097041.9, adopting nylon blowout prevention ball, is not suitable for high-temperature thermal production well. Published magnetic pressurizing polish rod sealer has the application number: 201610372660.1 the magnetic fluid seal that adopts, actual magnetic fluid seal requires to work under accurate dust-free environment, is not applicable to the field of production of oil field, and simultaneously, when magnetic booster polished rod sealer has the upper portion problem of handling, the lower part can not temporarily seal, does not possess broken pole blowout prevention function. Therefore, the prior art still can not better solve the problems of wellhead sealing, centering and broken rod blowout prevention of the pumping well.
Disclosure of Invention
The invention aims to overcome the defects of the existing polish rod sealer technology and provides a polish rod sealer.
The invention is realized by the following technical scheme:
the invention comprises a main sealing assembly, a secondary sealing assembly, a deviation adjusting blowout prevention assembly; the method is characterized in that: the main sealing assembly is positioned at the upper part, the secondary sealing assembly is positioned at the middle part, and the deviation adjusting blowout prevention assembly is positioned at the lower part; when the main seal assembly realizes normal production of an oil well, the polish rod and the wellhead are sealed, the secondary seal assembly realizes temporary sealing when the main seal packing is replaced, the lower part of the deviation-adjusting blowout-preventing assembly is connected with the wellhead, the adjustment of the angle displacement and the horizontal displacement between the polish rod and the wellhead is realized, the polish rod and the wellhead are concentric, and the polish rod blowout-preventing function after breakage is realized.
Above-mentioned main seal assembly's in polished rod sealer main seal intracavity establishes main seal packing, is equipped with the pressure package around the main seal packing, and the lower part of pressure package is equipped with the inlet tube, and the inlet tube passes main seal chamber, is equipped with the quick male plug that has the uniflow valve on the inlet tube, and the upper portion of main seal packing, pressure package is equipped with the clamp plate, goes up the pressure cap, goes up pressure cap and main seal chamber threaded connection.
Above-mentioned secondary seal assembly cube in polished rod sealer is equipped with the secondary seal packing left seat and the secondary seal packing right seat of the articulated secondary seal packing of rear end through well hinge in the secondary seal chamber, secondary seal packing left seat and secondary seal packing right seat front end are equipped with left back silk sleeve axle and right positive silk sleeve axle respectively, power shaft and left back silk sleeve axle and right positive silk sleeve axle threaded connection pass, the right side in secondary seal chamber passes the apron through the screw rod with the secondary seal chamber is connected, and be equipped with sealed the pad between, the apron is equipped with side seal packing box, side seal packing box is equipped with side seal packing, the left side of side seal packing is equipped with the gland, little pressure cap and side seal packing box threaded connection, power shaft right part passes side seal packing, gland, little pressure cap, the right-hand member of power shaft is equipped with the hand wheel.
Two halves of the secondary sealing packing in the polish rod sealer are respectively pressed together with the left secondary sealing packing seat and the right secondary sealing packing seat by high-temperature glue.
The left end of the left part of the power shaft in the polish rod sealer is provided with the reverse thread, the middle is provided with the separation groove, and the right side is provided with the positive thread.
A plane metal sealing gasket is arranged between the deviation adjusting body of the deviation adjusting blowout prevention assembly in the polish rod sealer and the upper plane of the ball head, and a pressing cap is used for sleeving the deviation adjusting body from the upper part and is in threaded connection with the ball head so as to press the plane metal sealing gasket; and 6-8 ball bolts penetrate through the through holes of the ball flange to connect the clamp head with the ball.
The deviation adjusting body in the polish rod sealer comprises an upper part and a lower part, wherein the upper part and the lower part are connected through threads, a lower sealing gasket is arranged in the middle of the deviation adjusting body, a ball cavity is arranged in the deviation adjusting body, and a stainless steel hollow blowout prevention ball is arranged in the ball cavity.
Two hollow lugs are symmetrically arranged on the circumference of the pressing cap in the polish rod sealer.
The bottom surface of the clamp head in the polish rod sealer is provided with a trapezoid steel ring groove.
The ball flange in the polish rod sealer is provided with the cambered surface through hole at the center, 6-8 through holes are circumferentially arranged, and the lower opening of each through hole is a taper opening.
The pressure bag in the polish rod sealer is made of oil-resistant rubber materials.
Working principle: the pressure bag in the polish rod sealer is filled with pressure oil, the main sealing packing is circumferentially extruded, dynamic sealing is realized on the polish rod under the upper pressure of the upper pressing cap, the packing box sealing pressure is timely observed through the pressure gauge, and the higher the temperature is, the better the sealing is; when the main sealing packing needs to be replaced, the hand wheel is rotated clockwise, the hand wheel drives the power shaft, the power shaft drives the right seat of the secondary sealing packing to shrink inwards through the right positive wire sleeve shaft and the left reverse wire sleeve shaft, so that the secondary sealing packing holds the polish rod, and temporary sealing is realized; the pressing cap is disassembled and delivered, the horizontal displacement adjustment is realized through the deflection adjusting body, the ball stud is disassembled and delivered, and the angular displacement adjustment is realized through the ball flange; when the polish rod falls into the well after being broken, the blowout prevention ball automatically seals the upper opening of the ball cavity under the action of the liquid pressure in the well, so that the blowout prevention effect of the broken rod is achieved.
Compared with the prior art, the invention has the following advantages:
1. a polish rod sealer overcomes the traditional manual fastening packing mode, realizes hydraulic sealing and has good sealing effect.
2. The polish rod sealer is a temporary sealing packing, is tightly fixed on one side, has novel design and compact structure, and has initiative.
3. The polish rod sealer is a temporary sealing packing, and is designed in an integrated manner of angular displacement, horizontal displacement, blowout prevention and convenient to adjust and operate.
4. The utility model provides a polished rod sealer seals packing temporarily, in pumping well pumping, makes beam-pumping unit suspension point and well head center centering, alleviates packing eccentric wear, reduces beam-pumping unit load, practices thrift the electric energy, and packing sealed effect is good, is particularly useful for viscous crude annotates steam, annotates the oil pumping well head seal of gathering district, especially polished rod fatigue fracture falls into the well, effectively prevents that blowout phenomenon from taking place, has not only avoided crude oil loss, prevents the polluted environment moreover, improves oil field management level.
Drawings
FIG. 1-schematic view of the present invention in front view and semi-section
FIG. 2-a cross-sectional view of the secondary seal assembly 2 of the present invention
In the figure, 1 part of a main seal assembly, 1 part to 1 part of an upper pressing cap, 1 part to 2 parts of a pressing plate, 1 part to 3 parts of a main seal packing, 1 part to 4 parts of a pressure bag, 1 part to 5 parts of an inlet pipe, 1 part to 6 parts of a quick male plug and 1 part to 7 parts of a main seal cavity; 2. the secondary seal assembly comprises 2-1 parts of cover plate, 2-2 parts of secondary seal cavity, 2-3 parts of secondary seal packing, 2-3z parts of secondary seal packing left seat and 2-3y parts of secondary seal packing right seat; 2-4 parts of sealing gasket, 2-5 parts of side sealing packing, 2-6 parts of side sealing packing box, 2-7 parts of small pressure cap, 2-8 parts of gland, 2-9 parts of power shaft, 2-10 parts of hand wheel, 2-11 parts of screw rod, 2-12 parts of middle hinge shaft, 2-13 parts of right positive wire sleeve shaft and 2-14 parts of left reverse wire sleeve shaft; 3. the anti-blowout assembly comprises 3-1 parts of a pressing cap, 3-2 parts of an ear handle, 3-3 parts of a lower sealing gasket, 3-4 parts of an anti-blowout body, 3-5 parts of an anti-blowout ball, 3-6 parts of a planar metal sealing gasket, 3-7 parts of a ball head, 3-8 parts of a ball head flange, 3-9 parts of a ball head bolt, 3-10 parts of a cambered surface metal sealing gasket and 3-11 parts of a clamp head; G. steel ring groove, Q.
Detailed Description
The invention is further described below with reference to the accompanying drawings:
as shown in fig. 1 and 2, the polish rod sealer comprises a main sealing assembly 1, a secondary sealing assembly 2 and a deviation adjusting blowout prevention assembly 3. The method is characterized in that: the main seal assembly 1 is arranged at the upper part, a main seal packing 1-3 is arranged in a main seal cavity 1-7 of the main seal assembly 1, a pressure pack 1-4 is arranged around the main seal packing 1-3, an inlet pipe 1-5 is arranged at the lower part of the pressure pack 1-4, the inlet pipe 1-5 penetrates through the main seal cavity 1-7, a quick male plug 1-6 with a check valve is arranged on the inlet pipe 1-5, a pressing plate 1-2 and an upper pressing cap 1-1 are arranged at the upper parts of the main seal packing 1-3 and the pressure pack 1-4, and the upper pressing cap 1-1 is in threaded connection with the main seal cavity 1-7. The secondary sealing assembly 2 is positioned in the middle, the secondary sealing assembly 2 is a cube, a secondary sealing packing left seat 2-3z and a secondary sealing packing right seat 2-3y of which the rear ends are hinged through a middle hinge shaft 2-12 are arranged in the secondary sealing cavity 2-2, a left back wire sleeve shaft 2-14 and a right positive wire sleeve shaft 2-13 are respectively arranged at the front ends of the secondary sealing packing left seat and the secondary sealing packing right seat 2-3y, a power shaft 2-9 is in threaded connection with the left back wire sleeve shaft 2-14 and the right positive wire sleeve shaft 2-13, a cover plate 2-1 is connected with the secondary sealing cavity 2-2 through a screw rod 2-11, a sealing gasket 2-4 is arranged between the secondary sealing cavity 2-2 and the secondary sealing cavity 2-2, a side sealing packing box 2-6 is arranged on the cover plate 2-1, a side sealing packing box 2-5 is arranged on the side, a gland 2-8 is arranged on the right side of the side sealing packing box 2-5, a small pressure cap 2-7 is connected with the side packing box 2-6 through a small pressure cap 2-9, and a small pressure cap 2-9 is arranged on the right side of the side packing box 2-5 and is in threaded connection with the power shaft 2-9. The deviation adjusting and blowout preventing assembly 3 is positioned at the lower part, a plane metal sealing gasket 3-6 is arranged between the deviation adjusting body 3-4 of the deviation adjusting and blowout preventing assembly 3 and the upper plane of the ball head 3-7, the deviation adjusting body 3-4 is sleeved by the pressing cap 3-1 from the upper part and is in threaded connection with the ball head 3-7, and the plane metal sealing gasket 3-6 is pressed tightly; and a cambered surface metal sealing gasket 3-10, 6-8 ball stud 3-9 penetrates through a through hole of the ball flange 3-8 between the clamp head 3-11 and the lower spherical surface of the ball head 3-7 to connect the clamp head 3-11 with the ball head 3-7.
When the main seal assembly 1 of the polish rod sealer realizes normal production of an oil well, the polish rod is sealed with a wellhead, the secondary seal assembly 2 realizes temporary sealing when the main seal packing 1-3 is replaced, the lower part of the deviation-adjusting blowout-preventing assembly 3 is connected with the wellhead, the adjustment of the angular displacement and the horizontal displacement between the polish rod and the wellhead is realized, the polish rod is concentric with the wellhead, and the polish rod blowout-preventing function after breakage is realized.
Claims (7)
1. A polish rod sealer comprises a main sealing assembly (1), a secondary sealing assembly (2) and a deviation adjusting blowout prevention assembly (3); the method is characterized in that: the main sealing assembly (1) is positioned at the upper part, the secondary sealing assembly (2) is positioned at the middle part, and the deviation-adjusting blowout-preventing assembly (3) is positioned at the lower part; when the main seal assembly (1) realizes normal production of an oil well, the polish rod and the wellhead are sealed, the secondary seal assembly (2) realizes temporary sealing when the main seal packing (1-3) is replaced, the lower part of the deviation-adjusting blowout-preventing assembly (3) is connected with the wellhead, the adjustment of the angular displacement and the horizontal displacement between the polish rod and the wellhead is realized, the polish rod and the wellhead are concentric, and the polish rod blowout-preventing function after breakage is realized; a main sealing packing (1-3) is arranged in a main sealing cavity (1-7) of the main sealing assembly (1), a pressure bag (1-4) is arranged around the main sealing packing (1-3), an inlet pipe (1-5) is arranged at the lower part of the pressure bag (1-4), the inlet pipe (1-5) penetrates through the main sealing cavity (1-7), a quick male plug (1-6) with a check valve is arranged on the inlet pipe (1-5), a pressing plate (1-2) and an upper pressing cap (1-1) are arranged at the upper part of the main sealing packing (1-3) and the upper part of the pressure bag (1-4), and the upper pressing cap (1-1) is in threaded connection with the main sealing cavity (1-7); the secondary sealing assembly (2) is a cube, a secondary sealing packing left seat (2-3 z) and a secondary sealing packing right seat (2-3 y) of a secondary sealing packing (2-3) with the rear end hinged through a middle hinge shaft (2-12) are arranged in the secondary sealing cavity (2-2), a left back wire sleeve shaft (2-14) and a right positive wire sleeve shaft (2-13) are respectively arranged at the front ends of the secondary sealing packing left seat (2-3 z) and the secondary sealing packing right seat (2-3 y), a power shaft (2-9) is in threaded connection with the left back wire sleeve shaft (2-14) and the right positive wire sleeve shaft (2-13) to pass through, the right side of the secondary sealing cavity (2-2) is connected with a cover plate (2-1) through a screw rod (2-11) and is connected with the secondary sealing cavity (2-2), a sealing gasket (2-4) is arranged between the cover plate and the secondary sealing cavity, the cover plate (2-1) is provided with a side sealing packing box (2-6), the side sealing packing box (2-6) is provided with a side sealing packing (2-5), the right side of the side sealing packing box (2-5) is provided with a gland (2-8), a small pressure cap (2-7) is in threaded connection with the side sealing packing box (2-6), and the left part of a power shaft (2-9) penetrates through the side sealing packing (2-5), the gland (2-8), A hand wheel (2-10) is arranged at the right end of the power shaft (2-9); a plane metal sealing gasket (3-6) is arranged between the deviation adjusting body (3-4) of the deviation adjusting blowout prevention assembly (3) and the upper plane of the ball head (3-7), the deviation adjusting body (3-4) is sleeved in the pressing cap (3-1) from the upper part, and is in threaded connection with the ball head (3-7) to press the plane metal sealing gasket (3-6); and 6-8 ball stud bolts (3-9) penetrate through the through holes of the ball flange (3-8) to connect the clamp head (3-11) with the ball head (3-7) at the cambered surface metal sealing gasket (3-10) between the clamp head (3-11) and the lower spherical surface of the ball head (3-7).
2. A polish rod sealer according to claim 1, characterized by: the two halves of the secondary sealing packing (2-3) are respectively pressed together with the left secondary sealing packing seat (2-3 z) and the right secondary sealing packing seat (2-3 y) by high-temperature glue.
3. A polish rod sealer according to claim 1, characterized by: the left end of the left part of the power shaft (2-9) is provided with a reverse thread, the middle is provided with a separation groove, and the right side is provided with a positive thread.
4. A polish rod sealer according to claim 1, characterized by: the deflection adjusting body (3-4) comprises an upper part and a lower part, the middle part is provided with a lower sealing gasket (3-3) through threaded connection, a ball cavity (Q) is arranged in the lower sealing gasket, and a stainless steel hollow blowout prevention ball (3-5) is arranged in the ball cavity (Q).
5. A polish rod sealer according to claim 1, characterized by: two hollow lugs (3-2) are symmetrically arranged on the circumference of the pressing cap (3-1).
6. A polish rod sealer according to claim 1, characterized by: the center of the ball flange (3-8) is provided with a cambered surface through hole, 6-8 through holes are circumferentially arranged, and the lower opening of each through hole is a taper opening.
7. A polish rod sealer according to claim 1, characterized by: the pressure bag (1-4) is made of oil-resistant rubber materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710609149.3A CN107178333B (en) | 2017-07-25 | 2017-07-25 | Polished rod sealer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710609149.3A CN107178333B (en) | 2017-07-25 | 2017-07-25 | Polished rod sealer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107178333A CN107178333A (en) | 2017-09-19 |
| CN107178333B true CN107178333B (en) | 2023-06-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710609149.3A Active CN107178333B (en) | 2017-07-25 | 2017-07-25 | Polished rod sealer |
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| CN (1) | CN107178333B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108240195A (en) * | 2018-02-08 | 2018-07-03 | 许和谦 | Polished rod sealer |
| CN110230482A (en) * | 2019-07-17 | 2019-09-13 | 山东四通石油技术开发有限公司 | Self-sealing anti-corrosion blowout prevention polished rod protective device |
| CN111894508B (en) * | 2020-08-13 | 2022-05-27 | 赵振军 | Thick oil thermal recovery well head sealing blowout preventer |
| CN114059952A (en) * | 2021-10-26 | 2022-02-18 | 桂林航天工业学院 | Spherical polish rod sealing device |
| CN115306342B (en) * | 2022-10-11 | 2023-02-03 | 克拉玛依红山油田有限责任公司 | Glue injection guiding sealing blowout preventer |
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| CN2376531Y (en) * | 1999-06-04 | 2000-05-03 | 胜利石油管理局孤东采油厂 | Polished rod deflection-regulating blowout-prevening sealing for oil pumping machine |
| CN2426913Y (en) * | 2000-03-01 | 2001-04-18 | 胜利石油管理局孤东采油厂 | High-pressure rod less sealing device for pumping unit well head |
| CN1727635A (en) * | 2004-11-21 | 2006-02-01 | 王福成 | Method and equipment for equipotential self-balancing pumping unit in cluster wells |
| CN101806202A (en) * | 2010-03-31 | 2010-08-18 | 中国石油大学(华东) | Water drainage and gas production simulated experimental device |
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| CN102828731A (en) * | 2012-09-20 | 2012-12-19 | 长春大吉油田工程技术有限公司 | Oil field water injection well dual-pressure cavity anti-blowout operation technology |
| CA3010651A1 (en) * | 2016-01-08 | 2017-07-13 | Licheng YU | Wellhead sealing device of sucker-rod pumping machine |
| CN207048715U (en) * | 2017-07-25 | 2018-02-27 | 东营市昌瑞石油机械配件有限责任公司 | A kind of polished rod sealer |
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2017
- 2017-07-25 CN CN201710609149.3A patent/CN107178333B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2376531Y (en) * | 1999-06-04 | 2000-05-03 | 胜利石油管理局孤东采油厂 | Polished rod deflection-regulating blowout-prevening sealing for oil pumping machine |
| CN2426913Y (en) * | 2000-03-01 | 2001-04-18 | 胜利石油管理局孤东采油厂 | High-pressure rod less sealing device for pumping unit well head |
| CN1727635A (en) * | 2004-11-21 | 2006-02-01 | 王福成 | Method and equipment for equipotential self-balancing pumping unit in cluster wells |
| CN101806202A (en) * | 2010-03-31 | 2010-08-18 | 中国石油大学(华东) | Water drainage and gas production simulated experimental device |
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| CN107178333A (en) | 2017-09-19 |
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Inventor after: Gao Yundong Inventor before: Gao Yundong Inventor before: Qiao Yongsheng |