CN101672272A - Gas and sand anchor device of electrical submersible pump - Google Patents
Gas and sand anchor device of electrical submersible pump Download PDFInfo
- Publication number
- CN101672272A CN101672272A CN200810222183A CN200810222183A CN101672272A CN 101672272 A CN101672272 A CN 101672272A CN 200810222183 A CN200810222183 A CN 200810222183A CN 200810222183 A CN200810222183 A CN 200810222183A CN 101672272 A CN101672272 A CN 101672272A
- Authority
- CN
- China
- Prior art keywords
- gas
- connecting head
- sand
- lead channel
- submersible pump
- 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.)
- Granted
Links
- 239000004576 sand Substances 0.000 title claims abstract description 77
- 230000001012 protector Effects 0.000 claims description 9
- 238000009827 uniform distribution Methods 0.000 claims description 2
- 239000007789 gas Substances 0.000 abstract description 49
- 239000007788 liquid Substances 0.000 abstract description 27
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000012423 maintenance Methods 0.000 abstract description 2
- 230000007547 defect Effects 0.000 abstract 1
- 238000000926 separation method Methods 0.000 description 9
- 239000003129 oil well Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 238000004062 sedimentation Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 230000008021 deposition Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 239000013049 sediment Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Images
Abstract
The invention relates to a gas and sand anchor device of an electrical submersible pump. To overcome the defect that an underground unit of the prior electrical submersible pump does not have gas, liquid and sand separating function simultaneously, a gas and sand anchor (20) is installed at the lower end of the electrical submersible pump with an air deflector (25); the upper part of a connectingtube (7) of the gas and sand anchor (20) is inserted into a shell (2) through a hole in the middle of a lower sealed disk (6); a liquid inlet groove (10) is arranged at the middle part of a connector(9); the lower end part of the connector (9) is fixedly connected with the lower end of an upper shell (8) and the upper end of a lower shell (12); the upper end part of the connector (9) is fixedly connected with the lower end of the connecting tube (7) and the upper end of an isolating tube (11); a lower connector (13) is fixedly installed at the lower end part of the lower shell (12); and a sand discharge device (16) is installed at the bottom part of the lower connector (13). The invention has the advantages of simple structure, easy manufacture, convenient use, low failure rate and convenient maintenance, improves the adaptability of the electrical submersible pump, and prolongs the service cycle of the electrical submersible pump.
Description
Affiliated technical field
The present invention relates to a kind of petroleum production down-hole oil production equipment submersible electric pump, especially relate to a kind of gas and sand anchor device of electrical submersible pump.
Background technique
Conventional submersible electric pump down-hole unit is mainly connected to form from the bottom to top by oil-submersible motor, protector, deaerator, multistage centrifugal pump.In order to satisfy high gassiness well recovery needs, disclosed Chinese utility model patent on May 6th, 1998 " submersible electric pump gas anchor device " (notification number CN2280786Y), the place is equipped with gas anchor at centrifugal pump, the lower end of gas anchor is lower than the suction port of deaerator, is applied in the high gassiness oil well effectively to improve the Oil-gas Separation ratio.Disclosed Chinese utility model patent on February 2nd, 2000 " submersible electric pump of band air guide sleeve " (CN2361890Y); the top of air guide sleeve is installed on the base of deaerator; air guide sleeve will comprise certainly that the suction port of deaerator bottom and following protector, oil-submersible motor thereof have all covered in the air guide sleeve; be applied in low yield, the thick oil well mining operations; promptly can solve the Electric Submersible Pump Unit heat dissipation problem; can pump into cooling viscosity reduction medium from well head again, reduce the viscous crude viscosity.
Along with the continuous progress of oil exploitation technology, the large scale cased well is more and more, and air content is big in the well, and sand content improves, and the submersible electric pump that installs gas anchor device additional can satisfy the requirement of gas, liquid separation; The submersible electric pump of band air guide sleeve is applied to low yield, thick oil well, can solve the Electric Submersible Pump Unit heat dissipation problem, reduces the viscous crude viscosity; But the submersible electric pump that installs additional behind the air guide sleeve can't install gas anchor device additional; Sand in particularly can't separating liquid in the said apparatus makes sand serious to centrifugal pump in the submersible electric pump and separator abrasion, greatly reduces the working life of Electric Submersible Pump Unit.
The gas and sand anchor device is applied to the rod pumping pump oil producing operation, it mainly acts on is that down-hole liquid is carried out gas-liquid separation and desanding, as on April 20th, 2005 disclosed " interior offset gas and sand anchor " (CN2693990Y), on January 9th, 2008 disclosed " spiral bell-type gas and sand anchor " (CN201003398), be installed in the below of oil well pump, through spiral separation, utilize liquid, gas, gravitational difference between sand and slippage effect are realized liquid, gas, the separation of sand, have gas-liquid separation and desanding effect, can improve the pump efficiency of oil well pump, eliminate the infringement of sand grains, prolong the manufacture cycle of oil well oil well pump.But existing gas and sand anchor complex structure breaks down easily, is not suitable for being applied to the oil recovery production of submersible electric pump.
Summary of the invention
In order to overcome the deficiency that existing submersible electric pump down-hole unit does not have gas, liquid, sand separation function simultaneously, the invention provides a kind of gas and sand anchor device of electrical submersible pump.This gas and sand anchor device of electrical submersible pump separates the liquid in the well liquid, gas and sand grains by the applied in any combination of decanter type gas-liquid separation technology and rotary liquid-solid stripping technique, improves the adaptability of Electric Submersible Pump Unit.
The technical solution adopted for the present invention to solve the technical problems is: gas and sand anchor device of electrical submersible pump comprises submersible electric pump down-hole unit; air guide sleeve; gas and sand anchor; submersible electric pump down-hole unit is connected with oil-submersible motor from the bottom to top in turn; protector; deaerator; multistage centrifugal pump; air guide sleeve is installed in the underpart of deaerator; air guide sleeve will comprise the suction port and the protector of deaerator underpart; oil-submersible motor covers on wherein; air guide sleeve housing lower end is installed with the lower seal dish, and insert in the air guide sleeve housing by lower seal dish intermediate throughholes on the connecting tube top of gas and sand anchor.The connecting head center of gas and sand anchor is a through hole; There is lead channel at the connecting head middle part; The connecting head underpart diameter of axle is greater than the diameter of axle at lead channel place, and the connecting head upper end portion diameter of axle is less than or equal to the diameter of axle at lead channel place.Fixedlying connected with the upper shell lower end in the connecting head underpart, between upper shell endoporus and the lead channel slit is arranged; Fixedly connected with the lower shell body upper end in the connecting head underpart; The tie point of the tie point of connecting head and upper shell, connecting head and lower shell body is lower than the lead channel of connecting head.Fixedly connected with the connecting tube lower end in the connecting head upper end portion; Fixedly connected with the isolated tube upper end in the connecting head upper end portion; The tie point of the tie point of connecting head and connecting tube, connecting head and isolated tube is higher than the lead channel of connecting head; The slit is radially arranged between upper shell and lead channel, the connecting tube; The slit is radially arranged between lower shell body and isolated tube, the lead channel.The lower shell body lower end is installed with lower contact, and the lower contact bottom is equipped with sand removing device.
The beneficial effect of gas and sand anchor device of electrical submersible pump of the present invention is, simple in structure, be easy to make, easy to use, rate of fault is low, be convenient to maintenance, solve the contradiction that air guide sleeve and gas anchor can't use simultaneously in the submersible electric pump, the gas in the well liquid, liquid, sand successfully can have been separated, improved submersible electric pump adaptability, reduce the damage of sand grains, prolong the submersible electric pump life cycle submersible electric pump.
Description of drawings
Fig. 1 is a gas and sand anchor device of electrical submersible pump structural representation of the present invention.
Fig. 2 is a gas and sand anchor device of electrical submersible pump band air guide sleeve structural representation of the present invention.
Fig. 3 is the A-A sectional drawing of Fig. 1.
Fig. 4 is a B portion sand removing device enlarged view among Fig. 1.
Fig. 5 is that the C of Fig. 4 is to view.
Among the figure: 1. go up seal disc, 2. housing, 3. suction port, 4. supporting slip, 5. oil-submersible motor; 6. lower seal dish, 7. connecting tube, 8. upper shell, 9. connecting head; 10. lead channel, 11. isolated tubes, 12. lower shell bodys, 13. lower contacts; 14. baffle plate, 15. protectors, 16. sand removing devices, 19. radial direction through hole; 20. gas and sand anchor, 22. bearing pins, 23. limiting boards, 24. retaining screws; 25. air guide sleeve, 26. deaerators, 27. sedimentation chambers, 28. eddy flow chambeies.
Embodiment
The invention will be further described below in conjunction with accompanying drawing 1～accompanying drawing 5 and embodiment.
Referring to Fig. 2.Gas and sand anchor device of electrical submersible pump of the present invention, submersible electric pump down-hole unit is connected with oil-submersible motor 5, protector 15, deaerator 26, multistage centrifugal pump from the bottom to top in turn.Air guide sleeve 25 mainly comprises seal disc 1, housing 2, supporting slip 4, lower seal dish 6, last seal disc 1 and lower seal dish 6 lay respectively at the two ends of housing 2, and fixedly connected with housing 2, the supporting slip 4 that is positioned at housing 2 middle parts is fixedlyed connected air guide sleeve 25 with submersible electric pump down-hole unit.Air guide sleeve 25 upper ends are installed in the underpart of deaerator 26, will comprise that the suction port 3 of deaerator 26 and protector 15, oil-submersible motor 5 cover on wherein.
Referring to Fig. 1.The gas and sand anchor 20 of gas and sand anchor device of electrical submersible pump of the present invention mainly comprises connecting head 9, connecting tube 7, isolated tube 11, upper shell 8, lower shell body 12, lower contact 13 and sand removing device 16 etc.
Connecting head 9 has axial hole, and there is lead channel 10 at the middle part of connecting head 9; The connecting head 9 underpart diameters of axle are greater than the diameter of axle at lead channel 10 places; The connecting head 9 upper end portion diameters of axle are less than or equal to the diameter of axle at lead channel 10 places.The direction of lead channel 10 is connecting head 9 tangent directions (referring to Fig. 3); Usually the quantity of lead channel 10 is 2～4, and along connecting head 9 circumference uniform distributions.
Fixedly connected with upper shell 8 lower ends in connecting head 9 underparts, fixedlying connected with lower shell body 12 upper ends in connecting head 9 underparts, generally adopts thread connecting mode.The tie point of the tie point of connecting head 9 and upper shell 8, connecting head 9 and lower shell body 12 all is lower than the lead channel 10 on the connecting head 9.Usually upper shell 8 is connected with the outside thread of connecting head 9, and lower shell body 12 is connected with the internal thread or the outside thread of connecting head 9.
Fixedlying connected with connecting tube 7 lower ends in connecting head 9 upper end portions, fixedlys connected with isolated tube 11 upper ends in connecting head 9 upper end portions; The tie point of connecting head 9 and connecting tube 7 is higher than the tie point of connecting head 9 and isolated tube 11; Placement is generally and is threaded.The tie point of the tie point of connecting head 9 and connecting tube 7, connecting head 9 and isolated tube 11 all is higher than the lead channel 10 of connecting head 9.
The connecting head 9 of gas and sand anchor 20 radially has the slit with after upper shell 8, lower shell body 12, connecting tube 7, isolated tube 11 are fixedlyed connected between upper shell 8 and lead channel 10, the connecting tube 7, forms sedimentation chamber 27; Between lower shell body 12 and isolated tube 11, the lead channel 10 slit is arranged, form eddy flow chamber 28.
After gas and sand anchor 20 assembling finished, inserted in the housing 2 by the through holes in the middle of the air guide sleeve 25 lower seal dishes 6 connecting tube 7 upper end portions of gas and sand anchor 20, and connecting tube 7 is fixedlyed connected with lower seal dish 6; Fixedlying connected with oil-submersible motor 5 lower ends in connecting tube 7 upper ends that perhaps are positioned at housing 2, simultaneously has radial direction through hole 19 on the connecting tube 7 that is positioned at housing 2, and through hole 19 promptly can be perpendicular to axis, also can angle less than 90 ° be arranged with the upper end axis.
The invention process process is, the Electric Submersible Pump Unit that air guide sleeve 25 and gas and sand anchor 20 are installed is lowered in the pit shaft, after submersible electric pump is started working, well liquid is being entered by upper shell 8 upper ends in sedimentation chamber 27 processes of gas and sand anchor 20, gas moves upward, well liquid (containing sand) flows vertically downward, and gas separates with well liquid; Then, the lead channel 10 of well liquid on connecting head 9 that enters sedimentation chamber 27 enters eddy flow chamber 28, because the direction of lead channel 10 is along connecting head 9 tangential direction, well liquid can be directed flowing downward while rotating after entering eddy flow chamber 28 by lead channel 10; In the downward process of liquid stream rotation, enter the sand grains in eddy flow chamber 28 with well liquid, because of its proportion greater than liquid specific gravity, will move laterally, along lower shell body 12 inwalls to gas and sand anchor 20 bottom deposits; Well liquid enters gas and sand anchor 20 inner chambers by isolated tube 11 lower ends and moves upward, and enters the annular space of air guide sleeve 25 by connecting tube 7 upper ends or through hole 19, enters multistage centrifugal pump by deaerator suction port 3.When the sand grains of gas and sand anchor 20 bottom deposits was too much, the baffle plate 14 of sand removing device 16 will be opened automatically, and to effluent sand, after sediment outflow finished, baffle plate 14 will be closed automatically.
Submersible electric pump is when the high gassiness oil mining of low discharge capacity, after installing gas and sand anchor device of electrical submersible pump of the present invention additional, can reach the purpose of gas-liquid separation, simultaneously the sand in the well liquid be discharged gas and sand anchor, make Electric Submersible Pump Unit not be subjected to the influence of sand grains, prolong the working life of Electric Submersible Pump Unit.
Claims (6)
1. gas and sand anchor device of electrical submersible pump; comprise submersible electric pump down-hole unit, air guide sleeve; submersible electric pump down-hole unit is connected with oil-submersible motor, protector, deaerator, multistage centrifugal pump from the bottom to top in turn; air guide sleeve is installed in the underpart of deaerator; air guide sleeve will comprise that the suction port of deaerator underpart and protector, oil-submersible motor cover on wherein, is characterized in that:
Housing (2) lower end of described air guide sleeve (25) is installed with lower seal dish (6), and insert in the housing (2) by lower seal dish (6) intermediate throughholes on connecting tube (7) top of gas and sand anchor (20);
Connecting head (9) center is a through hole; There is lead channel (10) at connecting head (9) middle part; The diameter of axle that connecting head (9) the underpart diameter of axle is located greater than lead channel (10), connecting head (9) the upper end portion diameter of axle is less than or equal to the diameter of axle that lead channel (10) is located;
Fixedlying connected with upper shell (8) lower end in connecting head (9) underpart, between upper shell (8) endoporus and the lead channel (10) slit is arranged; Fixedly connected with lower shell body (12) upper end in connecting head (9) underpart; The tie point of the tie point of connecting head (9) and upper shell (8), connecting head (9) and lower shell body (12) is lower than the lead channel (10) of connecting head (9);
Fixedly connected with connecting tube (7) lower end in connecting head (9) upper end portion; Fixedly connected with isolated tube (11) upper end in connecting head (9) upper end portion; The tie point of the tie point of connecting head (9) and connecting tube (7), connecting head (9) and isolated tube (11) is higher than the lead channel (10) of connecting head (9); Upper shell (8) and lead channel (10), connecting tube radially have the slit between (7); Lower shell body (12) and isolated tube (11), lead channel radially have the slit between (10);
Lower shell body (12) lower end is installed with lower contact (13), and sand removing device (16) is arranged at lower contact (13) bottom.
2. gas and sand anchor device of electrical submersible pump according to claim 1 is characterized in that: described lead channel (10) is along connecting head (9) tangent to periphery direction.
3. gas and sand anchor device of electrical submersible pump according to claim 2 is characterized in that: the quantity of described lead channel (10) is 2～4, and along connecting head (9) circumference uniform distribution.
4. gas and sand anchor device of electrical submersible pump according to claim 3 is characterized in that: fixedly connected with the oil-submersible motor lower end in described connecting tube (7) upper end that is positioned at housing (2); Radial direction through hole (19) is arranged at connecting tube (7) top that is positioned at housing (2).
5. gas and sand anchor device of electrical submersible pump according to claim 4 is characterized in that: described baffle plate (14) is connected with lower contact (13) by bearing pin (22); Be installed with limiting board (23) in the lower contact (13) of baffle plate (14) below.
6. gas and sand anchor device of electrical submersible pump according to claim 4 is characterized in that: described baffle plate (14) is connected with lower contact (13) by bearing pin (22); Described bearing pin is equipped with torque spring on (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102221836A CN101672272B (en) | 2008-09-11 | 2008-09-11 | Gas and sand anchor device of electrical submersible pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102221836A CN101672272B (en) | 2008-09-11 | 2008-09-11 | Gas and sand anchor device of electrical submersible pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101672272A true CN101672272A (en) | 2010-03-17 |
| CN101672272B CN101672272B (en) | 2011-01-12 |
Family
ID=42019634
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008102221836A Expired - Fee Related CN101672272B (en) | 2008-09-11 | 2008-09-11 | Gas and sand anchor device of electrical submersible pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101672272B (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105298465A (en) * | 2015-11-25 | 2016-02-03 | 中国海洋石油总公司 | Sand-controlled pumping device of submarine caisson gas-liquid separator |
| CN107473329A (en) * | 2017-10-12 | 2017-12-15 | 大庆油田有限责任公司 | Underground three swirler separator |
| CN109751252A (en) * | 2019-01-21 | 2019-05-14 | 临城清泉水泵制造有限公司 | A kind of built-in cooling device submersible pump |
| JP2019161718A (en) * | 2018-03-08 | 2019-09-19 | 日産自動車株式会社 | Cooling device for rotary electric machine |
| RU193678U1 (en) * | 2019-09-30 | 2019-11-11 | Публичное акционерное общество "Татнефть" имени В.Д. Шашина | Gas sand anchor for plug-in sucker rod pumps |
| CN110485970A (en) * | 2019-09-18 | 2019-11-22 | 东北石油大学 | A kind of exhaust sand control installation for oil well pump |
| CN112761961A (en) * | 2021-01-25 | 2021-05-07 | 左保林 | Water pump |
| CN113123758A (en) * | 2019-12-31 | 2021-07-16 | 中国石油天然气股份有限公司 | Metal vane pump steam injection valve, lifting device and oil extraction process |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3106526A (en) * | 1960-09-22 | 1963-10-08 | Benjamin F Schmidt | Sand and gas deflector for oil well pumps |
| US3285186A (en) * | 1965-04-26 | 1966-11-15 | Borg Warner | Sand and gas separator |
| CN2281421Y (en) * | 1996-05-28 | 1998-05-13 | 玉环县石油机械厂 | Underground three phase separator |
| CN2280786Y (en) * | 1996-11-28 | 1998-05-06 | 大港油田集团中成机械制造有限公司潜油电泵修造厂 | Pneumatic anchoring device for submersible electric-pump |
| CN2311602Y (en) * | 1997-07-16 | 1999-03-24 | 辽河石油勘探局欢喜岭采油厂 | Efficient compound gas sand anchor |
| CN2361890Y (en) * | 1998-08-14 | 2000-02-02 | 胜利石油管理局无杆采油泵公司 | Submersible electric pump with deflector |
| CN2693990Y (en) * | 2003-12-24 | 2005-04-20 | 大港油田集团有限责任公司 | Inner offset gas sand anchor |
| CN201003398Y (en) * | 2006-08-08 | 2008-01-09 | 杨峰 | Spiral cover type gas sand anchor |
| CN201273270Y (en) * | 2008-09-11 | 2009-07-15 | 大港油田集团中成机械制造有限公司 | Gas and sand anchor device for oil-submersible electric pump |
-
2008
- 2008-09-11 CN CN2008102221836A patent/CN101672272B/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105298465A (en) * | 2015-11-25 | 2016-02-03 | 中国海洋石油总公司 | Sand-controlled pumping device of submarine caisson gas-liquid separator |
| CN107473329A (en) * | 2017-10-12 | 2017-12-15 | 大庆油田有限责任公司 | Underground three swirler separator |
| CN107473329B (en) * | 2017-10-12 | 2020-08-14 | 大庆油田有限责任公司 | Underground three-stage cyclone separation device |
| JP2019161718A (en) * | 2018-03-08 | 2019-09-19 | 日産自動車株式会社 | Cooling device for rotary electric machine |
| JP6996356B2 (en) | 2018-03-08 | 2022-01-17 | 日産自動車株式会社 | Rotating machine cooling device |
| CN109751252A (en) * | 2019-01-21 | 2019-05-14 | 临城清泉水泵制造有限公司 | A kind of built-in cooling device submersible pump |
| CN110485970A (en) * | 2019-09-18 | 2019-11-22 | 东北石油大学 | A kind of exhaust sand control installation for oil well pump |
| CN110485970B (en) * | 2019-09-18 | 2021-10-29 | 东北石油大学 | Exhaust sand prevention device for oil well pump |
| RU193678U1 (en) * | 2019-09-30 | 2019-11-11 | Публичное акционерное общество "Татнефть" имени В.Д. Шашина | Gas sand anchor for plug-in sucker rod pumps |
| CN113123758A (en) * | 2019-12-31 | 2021-07-16 | 中国石油天然气股份有限公司 | Metal vane pump steam injection valve, lifting device and oil extraction process |
| CN112761961A (en) * | 2021-01-25 | 2021-05-07 | 左保林 | Water pump |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101672272B (en) | 2011-01-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101672272B (en) | Gas and sand anchor device of electrical submersible pump | |
| CN200955384Y (en) | Oil-gas separator for electric submersible pump | |
| CN201184183Y (en) | De-sanding and de-gassing device of oil extraction screw pump | |
| WO2016123162A1 (en) | Charge pump for gravity gas separator of well pump | |
| CN101398014B (en) | Rotating dynamical type multiphase booster pump | |
| CN101810944A (en) | Vortex gas-liquid separator | |
| CN202417467U (en) | Underground liquid-sand separator | |
| CN201273270Y (en) | Gas and sand anchor device for oil-submersible electric pump | |
| RU79936U1 (en) | DEVICE FOR SEPARATION OF GAS AND MECHANICAL IMPURITIES FROM OIL IN A WELL | |
| RU2290506C1 (en) | Device for in-well gas separation | |
| CN201470171U (en) | Liquid-sand separator | |
| CN212479195U (en) | High-pressure composite wellhead sand removal cylinder with replaceable rotational flow internal part | |
| CN105999868B (en) | Gas-liquid separator for open flow in oil-gas well test | |
| CN201827082U (en) | Centrifugal filter screen oil separator component for rotor type compressor | |
| CN104453837B (en) | Oil well flour sand device and oil production equipment | |
| CN210033386U (en) | Special screw pump device of coal bed gas | |
| CN100357565C (en) | Sleeved sand control device for downhole oil extraction device | |
| RU184048U1 (en) | DEVICE FOR GAS SEPARATION OF SUBMERSIBLE ELECTRIC CENTRIFUGAL PUMP IN CASING | |
| CN203783533U (en) | Oil production system of waterpower oil-submerged pump | |
| CN104213897A (en) | High-efficiency underground gas-liquid separator | |
| CN202937243U (en) | Underground liquid-gas separator | |
| CN201949924U (en) | Improved horizontal decanter centrifuge | |
| CN100353026C (en) | Uniform distribution type sand control device for downhole oil extraction device | |
| RU80906U1 (en) | SELF-CLEANING VALVE MECHANISM | |
| CN201330759Y (en) | Rotary power type multiphase booster pump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| ASS | Succession or assignment of patent right |
Owner name: CNPC BOHAI PETROLEUM EQUIPMENT MANUFACTURING CO., Free format text: FORMER OWNER: DAGANG OILFIELD GROUP, ZHONGCHENG MACHINERY MANUFACTURING CO., LTD. Effective date: 20100903 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20100903 Address after: 300280 Tianjin City, Grand Port Dagang Oilfield Sichuan Road Applicant after: CNPC BOHAI EQUIPMENT MANUFACTURING Co.,Ltd. Address before: 300280 Tianjin City, Grand Port Dagang Oilfield Sichuan Road Applicant before: ZHONGCHENG MACHINERY MFG Co.,Ltd. |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Bohai Petroleum Equipment (Tianjin) Zhongcheng Machinery Manufacturing Co.,Ltd. Assignor: CNPC BOHAI EQUIPMENT MANUFACTURING Co.,Ltd. Contract record no.: 2011120000184 Denomination of invention: Gas and sand anchor device of electrical submersible pump Granted publication date: 20110112 License type: Exclusive License Open date: 20100317 Record date: 20110915 |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20180813 Address after: 300280 the north passage of Dagang Oilfield in Tianjin. Co-patentee after: Bohai Petroleum Equipment (Tianjin) Zhongcheng Machinery Manufacturing Co.,Ltd. Patentee after: CNPC BOHAI EQUIPMENT MANUFACTURING Co.,Ltd. Address before: 300280 Chuan Gang Road, Dagang Oilfield, Grand Port, Tianjin Patentee before: CNPC BOHAI EQUIPMENT MANUFACTURING Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201021 Address after: 100007 Beijing, Dongzhimen, North Street, No. 9, No. Patentee after: CHINA NATIONAL PETROLEUM Corp. Patentee after: CNPC BOHAI EQUIPMENT MANUFACTURING Co.,Ltd. Patentee after: Bohai Petroleum Equipment (Tianjin) Zhongcheng Machinery Manufacturing Co.,Ltd. Address before: 300280 the north passage of Dagang Oilfield in Tianjin. Patentee before: CNPC BOHAI EQUIPMENT MANUFACTURING Co.,Ltd. Patentee before: Bohai Petroleum Equipment (Tianjin) Zhongcheng Machinery Manufacturing Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110112 Termination date: 20210911 |