发明名称 |
EXPANDED LINER SYSTEM AND METHOD |
摘要 |
A borehole may be drilled utilizing the bottom hole assembly (10, 50) with a downhole motor (14), which may offset at a selected bend angle. A gauge section (34) is secured to the bit (16) has a uniform diameter bearing surface along an axial length of at least 60% of the bit diameter. The axial spacing between the bend and the bit face is controlled to less than fifteen times the bit diameter. After drilling a section of the well with the BHA according to the present invention a tubular may be inserted in the well by passing the tubular through an upper tubular, then the inserted tubular expanded while downhole to a diameter substantially equal to the expanded tubular.
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申请公布号 |
CA2521658(C) |
申请公布日期 |
2011.04.12 |
申请号 |
CA20042521658 |
申请日期 |
2004.04.21 |
申请人 |
HALLIBURTON ENERGY SERVICES, INC. |
发明人 |
CHEN, CHEN-KANG D.;GLEITMAN, DANIEL D.;RAO, M. VIKRAM |
分类号 |
E21B43/10;E21B7/04;E21B7/06;E21B7/20;E21B10/26 |
主分类号 |
E21B43/10 |
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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