发明名称 |
NOVEL CONFIGURATION DESIGN OF DETECTOR SHIELDING FOR WIRELINE AND MWD/LWD DOWN-HOLE THERMAL NEUTRON POROSITY TOOLS |
摘要 |
An apparatus for estimating a property of an earth formation penetrated by a borehole, the apparatus includes: a carrier configured to be conveyed through the borehole; a neutron source disposed at the carrier and configured to irradiate the earth formation with neutrons; a neutron detector disposed at the carrier and configured to detect neutrons reflected by the earth formation to the detector; a neutron reflector disposed partially around the detector, an area of the detector not covered by the reflector being configured to admit the reflected neutrons; and a neutron absorber disposed at least around the reflector.
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申请公布号 |
US2010230585(A1) |
申请公布日期 |
2010.09.16 |
申请号 |
US20100721665 |
申请日期 |
2010.03.11 |
申请人 |
BAKER HUGHES INCORPORATED |
发明人 |
ZHANG QIANMEI;CHALITSIOS CONSTANTYN |
分类号 |
G01V5/10 |
主分类号 |
G01V5/10 |
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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