Invention Grant
- Patent Title: Cavity creation tool by crushing with multi-stage controllable water jet for natural gas hydrate development
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Application No.: US17537447Application Date: 2021-11-29
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Publication No.: US11542789B2Publication Date: 2023-01-03
- Inventor: Yang Tang , Peng Zhao , Guorong Wang , Jinhai Zhao , Qingyou Liu , Jinzhong Wang , Guangjie Yuan , Yufa He , Qingping Li , Xushen Li , Xiaoyu Fang , Zeliang Li , Xin Jing
- Applicant: Southwest Petroleum University , Southern Marine Science and Engineering Guangdong Laboratory (Zhanjiang)
- Applicant Address: CN Chengdu; CN Zhanjiang
- Assignee: Southwest Petroleum University,Southern Marine Science and Engineering Guangdong Laboratory (Zhanjiang)
- Current Assignee: Southwest Petroleum University,Southern Marine Science and Engineering Guangdong Laboratory (Zhanjiang)
- Current Assignee Address: CN Chengdu; CN Zhanjiang
- Priority: CN202110209892.6 20210224
- Main IPC: E21B41/00
- IPC: E21B41/00 ; E21B34/10
Abstract:
A cavity creation tool by crushing with multi-stage controllable water jet, it is used in natural gas hydrate development and mainly consists of an inner tube upper joint, an inner tube lower joint, an intermediate sleeve, an inner structure consisting of a coaxial throttle push rod, an outer layer sleeve, an outer layer structure consisting of a supporting ring, a jet head mounted to the intermediate sleeve and threading the outer layer sleeve, and a jet crushing structure consisting of a single-stage telescopic jet head and a two-stage telescopic jet head.
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