发明名称 |
Wellbore caliper measurement method using measurements from a gamma-gamma density |
摘要 |
Methods are disclosed for determining the standoff of a well logging instrument from the wall of a wellbore and the shape of the wellbore itself. The methods include measuring a compensated gamma-gamma formation density at a rotary orientation proximate a bottom of the wellbore, and measuring an apparent density at at least one other rotary orientation. The apparent density is related to the compensated density, a density of a fluid disposed between the logging instrument and a wall of the wellbore, and the standoff. Repeated measurements at a plurality of axial positions along the wellbore provide a log of the wellbore.
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申请公布号 |
US6552334(B2) |
申请公布日期 |
2003.04.22 |
申请号 |
US20010847501 |
申请日期 |
2001.05.02 |
申请人 |
SCHLUMBERGER TECHNOLOGY CORPORATION |
发明人 |
ELLIS DARWIN V.;DOGHMI MOHAMMED |
分类号 |
G01V5/12;(IPC1-7):G01V5/12;E21B47/08 |
主分类号 |
G01V5/12 |
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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