Invention Grant
- Patent Title: Energy-gathered bundle type nesting plugging and wall reinforcing device and application thereof in karst cave plugging
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Application No.: US16242099Application Date: 2019-01-08
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Publication No.: US10822913B2Publication Date: 2020-11-03
- Inventor: Yiqun Zhang , Ya Liu , Gensheng Li , Zhongwei Huang , Huaizhong Shi , Xianzhi Song , Mao Sheng , Lu Ji
- Applicant: China University of Petroleum—Beijing
- Applicant Address: CN Beijing
- Assignee: China University of Petroleum-Beijing
- Current Assignee: China University of Petroleum-Beijing
- Current Assignee Address: CN Beijing
- Agency: Young Basile Hanlon & MacFarlane, P.C.
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@2ee0a621
- Main IPC: E21B33/13
- IPC: E21B33/13 ; E21B29/02 ; F42D3/00
Abstract:
A plugging and wall reinforcing device and a method of using thereof. The nesting plugging and wall reinforcing device comprises an external slotted metal pipe and an internal nested blasting tool, wherein the slotted metal pipe has spiral slits or straight slits cut on a pipe wall thereof; the nested blasting tool is a mandrel having a surface provided with a plurality of explosive grooves in which explosives are placed; the slotted metal pipe is disposed around the mandrel, with a movable fit therebetween. The present invention can effectively improve the plugging success rate.
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