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Title:
INTELLIGENT OIL EXTRACTION SYSTEM USING ALL-METAL SCREW PUMP
Document Type and Number:
WIPO Patent Application WO/2020/177349
Kind Code:
A1
Abstract:
An intelligent oil extraction system using an all-metal screw pump, comprising an all-metal screw pump, an oil collecting unit (43), and a steam generating unit (45). The internal threaded surface and the external threaded surface of the all-metal screw pump are both in conical helical structures and have the same taper. The oil extraction system comprises a lifting and lowering mechanism and a monitoring and control mechanism. The monitoring and control mechanism comprises a controller (34), a torque sensor (35), a flow sensor (36), a pressure sensor (39), a liquid level detector (38), and a backup power supply (37). The controller (34) is separately in electronic control connection with the torque sensor (35), the flow sensor (36), the pressure sensor (39), the liquid level detector (38), the backup power supply (37), a drive motor (48), a servo motor (33), a first valve, and a second valve. The present system can solve the technical problems of short service life, high energy consumption, low pump efficiency, being easily jammed by sand, and low intelligence of existing metal screw pumps.

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WO/2013/068326HIGH HEAT RESISTANT POLYAMIDE FOR DOWN HOLE OIL COMPONENTS
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Inventors:
LIANG HAIYANG (CN)
ZHOU GUANG (CN)
SUN XUELEI (CN)
SUN XUELING (CN)
ZHANG ZHIHAI (CN)
Application Number:
PCT/CN2019/113970
Publication Date:
September 10, 2020
Filing Date:
October 29, 2019
Export Citation:
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Assignee:
WUXI HENGXIN BEISHI TECH CO LTD (CN)
International Classes:
E21B43/12
Domestic Patent References:
WO2004092538A12004-10-28
Foreign References:
CN109736756A2019-05-10
CN201262146Y2009-06-24
CN107905773A2018-04-13
CN104847323A2015-08-19
CN109267970A2019-01-25
US20130255933A12013-10-03
Other References:
See also references of EP 3936696A4
Attorney, Agent or Firm:
WUXI SHENGYANG PATENT&TRADEMARK AGENCE (CN)
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