Well drilling acceleration tool

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11920437
APP PUB NO 20230003084A1
SERIAL NO

17757059

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A speed-enhancing drilling tool includes an upstream drill string (10), which has a drive motor and a first driving rod coupled therewith, a downstream drilling bit; and a percussive device connected between the upstream drilling string and the downstream drilling bit. The first driving rod extending axially and the drive motor are configured to drive the first driving rod in rotation. The percussive device has a rotary driving part having an upper end engaged with the first driving rod to rotate together therewith; and a rotary working part having an upper end engaged with a lower end of the rotary driving part and a lower end connected with the downstream drilling bit. The rotary working part can be driven by the rotary driving part to rotate about its axis, and axially movable relative thereto; and a percussion generating part arranged around the rotary working part.

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Patent Owner(s)

  • CHINA PETROLEUM & CHEMICAL CORPORATION; SINOPEC PETROLEUM ENGINEERING TECHNOLOGY RESEARCH INSTITUTE CO., LTD.

International Classification(s)

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  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ding, Shidong Beijing, CN 1 1
Liu, Xiaodan Beijing, CN 17 10
Sun, Mingguang Beijing, CN 4 2
Tao, Xinghua Beijing, CN 27 55
Wang, Jiachang Beijing, CN 4 2
Wang, Lishuang Beijing, CN 7 2
Xuan, Lingchao Beijing, CN 4 2
Zang, Yanbin Beijing, CN 4 2
Zhang, Haiping Beijing, CN 129 422
Zhang, Renlong Beijing, CN 4 2

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