发明名称 |
COMPOSITE PERFORATING DEVICE WITH SCALLOPS ON THE INNER WALL |
摘要 |
<p>The present invention relates to a composite perforating device with scallops on its inner wall to improve the depth of penetration in the oil reservoir during perforation of oil and gas well. In one embodiment, the scallops on the inner wall of the gun body are located at a position corresponding to the open end of a perforating charge. In one embodiment, the scallop may have a stepped-cylindrical or truncated-conical inner peripheral surface and a conical or flat bottom surface. Alternatively, the scallop may have an inner conical surface. The scallops on the inner wall of the gun body increased the burst heights of the perforating charges such that the penetration depth of the perforating device is increased.</p> |
申请公布号 |
WO2013090647(A1) |
申请公布日期 |
2013.06.20 |
申请号 |
WO2012US69607 |
申请日期 |
2012.12.14 |
申请人 |
TONG OIL TOOLS CO., LTD.;TONG PETROTECH INC |
发明人 |
ZHANG, GUOAN;CHENG, JIANLONG |
分类号 |
E21B43/117 |
主分类号 |
E21B43/117 |
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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