发明名称 |
APPARATUS AND METHOD FOR CONVEYANCE AND CONTROL OF A HIGH PRESSURE HOSE IN JET DRILLING OPERATIONS |
摘要 |
<p>A jetting hose is conveyed downhole at least partially retracted within a tubing string for jetting lateral boreholes from a main wellbore, is released at the jetting depth and pumped from the tubing string and into a lateral borehole with jetting fluid. A piston is secured to the upper end of the jetting hose, and the pumped jetting fluid drives the piston. A speed control regulates the penetration rate of the jetting hose into the formation independent of the tubing string weight.</p> |
申请公布号 |
WO2009055381(A2) |
申请公布日期 |
2009.04.30 |
申请号 |
WO2008US80631 |
申请日期 |
2008.10.21 |
申请人 |
RADJET LLC;BRUNET, CHARLES;BOUCHARD, MICHEL |
发明人 |
BRUNET, CHARLES;BOUCHARD, MICHEL |
分类号 |
E21B7/18 |
主分类号 |
E21B7/18 |
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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