发明名称 |
SHOCK ATTENUATING APPARATUS AND METHOD |
摘要 |
An apparatus attenuates a shock, such as an impact load from an explosion, by undergoing plastic deformation and by serially dissipating energy from a plurality of surfaces. In a particular embodiment, the plastic deformation and serial energy dissipation occur in and from a hollow unitary body having a cylindrical wall in which are defined a plurality of longitudinally spaced circumferential grooves. A method of attenuating shock from an explosion in an oil gas well comprises: lowering into the well an explosive connected to a shock attenuating member; detonating the explosive whereby an impact load with a shock wave is generated; and collapsing without severing the member in response to the impact load and dissipating energy of the shock wave from a plurality of surfaces of the member so that the shock wave is attenuated along the member. |
申请公布号 |
AU1492592(A) |
申请公布日期 |
1992.10.22 |
申请号 |
AU19920014925 |
申请日期 |
1992.04.15 |
申请人 |
JET RESEARCH CENTER, INC. |
发明人 |
MIKE NAVARETTE;JERRY L. WALKER |
分类号 |
E21B17/07;E21B29/02;E21B43/119 |
主分类号 |
E21B17/07 |
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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