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Patent Searching and Data


Title:
PETROLEUM DEPOSITION LIQUID SUCTION DEVICE WITH HIGH DEGREE OF FREEDOM
Document Type and Number:
WIPO Patent Application WO/2021/208049
Kind Code:
A1
Abstract:
Disclosed is a petroleum deposition liquid suction device with a high degree of freedom. The petroleum deposition liquid suction device comprises a first suction pipe (1) and a second suction pipe (2), wherein the first suction pipe (1) is coaxial with the second suction pipe (2); the outer wall of the first suction pipe (1) is provided with a rubber seal ring (3); and the first suction pipe (1) and the second suction pipe (2) form a piston mechanism by means of the rubber seal ring (3). The suction device is not limited by the placement position of the device during use, and pipes can be arranged in a winding and narrow area.

Inventors:
JIN XUESONG (CN)
WANG YONGMING (CN)
Application Number:
PCT/CN2020/085223
Publication Date:
October 21, 2021
Filing Date:
April 17, 2020
Export Citation:
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Assignee:
HAIAN PETROLEUM SCIENT RESEARCH INSTRUMENT CO LTD (CN)
International Classes:
E21B34/06; E21B21/00
Foreign References:
CN203476258U2014-03-12
CN206397470U2017-08-11
CN105952421A2016-09-21
CN202157790U2012-03-07
CN110594140A2019-12-20
US4224993A1980-09-30
Attorney, Agent or Firm:
BEIJING CHINA IP LTD. (CN)
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