发明名称 |
Neutron measurement method for determining porosity of a formation surrounding a borehole |
摘要 |
The invention concerns a neutron measurement method for determining porosity of an earth formation surrounding a borehole comprising: conveying a tool along said borehole, wherein said tool comprises a source of neutron radiation and at least one detector axially spaced from said source; generating measured detector response for said at least one detector that is indicative of neutron radiation from said source interacting with said earth formations; operating said measured detector response with a predetermined mathematical equation and thereby obtaining corrected detector response that is independent of the density of said earth formation; and determining porosity of the earth formation surrounding the borehole from said corrected detector response. The invention also relates to a system implementing said method.
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申请公布号 |
US2005051718(A1) |
申请公布日期 |
2005.03.10 |
申请号 |
US20030657391 |
申请日期 |
2003.09.08 |
申请人 |
ELLIS DARWIN;COUET BENOIT;EVANS MICHAEL;CASE CHARLES R.;ALLIOLI FRANCOISE |
发明人 |
ELLIS DARWIN;COUET BENOIT;EVANS MICHAEL;CASE CHARLES R.;ALLIOLI FRANCOISE |
分类号 |
E21B49/00;G01V5/08;G01V5/10;(IPC1-7):G01V5/10 |
主分类号 |
E21B49/00 |
代理机构 |
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地址 |
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