发明名称 |
Method and apparatus for perforating or cutting with a solid fueled gas mixture |
摘要 |
A method for cutting pipe casings and concrete liners or perforating the same and localized portions of surrounding strata in an earth bore is set forth wherein a gas phase cutting or perforating jet mixture of fluorine and nitrogen trifluoride is delivered to the cutting or perforation site from the decomposition of a solid, normally stable, perfluoroammonium salt. An appropriate apparatus for delivering the gas mixture of fluorine and nitrogen trifluoride from the salt is also disclosed.
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申请公布号 |
US4446920(A) |
申请公布日期 |
1984.05.08 |
申请号 |
US19830457815 |
申请日期 |
1983.01.13 |
申请人 |
AIR PRODUCTS AND CHEMICALS, INC. |
发明人 |
WOYTEK, ANDREW J.;LILECK, JOHN T.;STEIGERWALT, EDWARD J. |
分类号 |
E21B29/02;E21B43/114;(IPC1-7):E21B29/02 |
主分类号 |
E21B29/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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