Invention Grant
- Patent Title: Downhole power drilling tool having multi-stage dual plunger eccentric gear mechanism
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Application No.: US17331646Application Date: 2021-05-27
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Publication No.: US11598151B2Publication Date: 2023-03-07
- Inventor: Yu Wang , Jiaxing Lu , Zhiqiao Wang , Baolin Liu , Qin Zhou , Tengteng Chang
- Applicant: CHINA UNIVERSITY OF GEOSCIENCES (BEIJING)
- Applicant Address: CN Beijing
- Assignee: CHINA UNIVERSITY OF GEOSCIENCES (BEIJING)
- Current Assignee: CHINA UNIVERSITY OF GEOSCIENCES (BEIJING)
- Current Assignee Address: CN Beijing
- Agency: Cooper Legal Group, LLC
- Priority: CN201911007463.X 20191022
- Main IPC: E21B4/02
- IPC: E21B4/02 ; E21B4/00
Abstract:
A downhole power drilling tool includes a flow distribution shaft, an outer pipe and a multi-stage eccentric gear driving mechanism which are coaxially arranged, the flow distribution shaft is suspended and supported in the outer pipe by the multi-stage eccentric gear driving mechanism.
Public/Granted literature
- US20210285289A1 ALL-METAL DOWNHOLE POWER DRILLING TOOL BASED ON MULTI-STAGE DUAL PLUNGER ECCENTRIC GEAR MECHANISM Public/Granted day:2021-09-16
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