发明名称 |
Gun brake device |
摘要 |
The present invention provides a gun brake system adapted to slow the descent of a tool string in a well. In one embodiment, the brake system comprises a brake installed within the well and having a snug fitting restriction and one or more fluid channels extending along a portion thereof. The brake system further provides means for maintaining the fluid volume substantially constant within the production tubing to which the gun brake is installed.
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申请公布号 |
US2003089504(A1) |
申请公布日期 |
2003.05.15 |
申请号 |
US20020280744 |
申请日期 |
2002.10.25 |
申请人 |
PARROTT ROBERT A.;LLOYD STEPHEN F.;SCHOONDERBEEK GERHARD;KAPLAN ATILLA;PRAESIUS HENRIK;CHEN KUO-CHIANG |
发明人 |
PARROTT ROBERT A.;LLOYD STEPHEN F.;SCHOONDERBEEK GERHARD;KAPLAN ATILLA;PRAESIUS HENRIK;CHEN KUO-CHIANG |
分类号 |
E21B34/00;E21B40/00;E21B43/11;E21B43/116;E21B43/119;(IPC1-7):E21B23/00 |
主分类号 |
E21B34/00 |
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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