发明名称 |
A BOREHOLE GAMMA RAY LOGGING DETECTOR AND SYSTEM |
摘要 |
A gamma ray detector for borehole logging includes a bismuth germanate crystal having a sensitivity to gamma rays and giving off light energy proportional to the energy of detected gamma rays. The bismuth germanate crystal is mounted in a housing which allows the operating temperature of the crystal to be maintained under increasing borehole temperature with depth. |
申请公布号 |
DE3475112(D1) |
申请公布日期 |
1988.12.15 |
申请号 |
DE19843475112 |
申请日期 |
1984.03.27 |
申请人 |
MOBIL OIL CORPORATION |
发明人 |
GIVENS, WYATT WENDELL;STROMSWOLD, DAVID CHARLES |
分类号 |
G01V5/06;(IPC1-7):G01V5/06;G01V5/04 |
主分类号 |
G01V5/06 |
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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