发明名称 |
DOWNHOLE NEUTRON ACTIVATION MEASUREMENT |
摘要 |
<p>Systems and methods for measuring neutron-induced activation gamma-rays in a subterranean formation are provided. In one example, a downhole tool for measuring neutron-induced activation gamma-rays may include a neutron source and a gamma-ray detector. The neutron source may emit neutrons according to a pulsing scheme that includes a delay between two pulses. The delay may be sufficient to allow substantially all neutron capture events due to the emitted neutrons to cease. The gamma-ray detector may be configured to detect activation gamma-rays produced when elements activated by the emitted neutrons decay to a non-radioactive state.</p> |
申请公布号 |
CA2729642(A1) |
申请公布日期 |
2010.01.07 |
申请号 |
CA20092729642 |
申请日期 |
2009.06.26 |
申请人 |
SCHLUMBERGER CANADA LIMITED |
发明人 |
STOLLER, CHRISTIAN;WRAIGHT, PETER |
分类号 |
G01T3/08 |
主分类号 |
G01T3/08 |
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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