发明名称 |
Naturally occurring radioactive material contamination detection means |
摘要 |
Radioactive contamination on tubing is detected as the tubing is withdrawn from a wellbore. The tubing is moved past a detector located on the wellhead, preferably through an annular shaped detector, and means responsive to the detected level of radiation exceeding predetermined limits activate both an alarm to gain the operator's attention and means to apply indicia to the contaminated tubing.
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申请公布号 |
US5675146(A) |
申请公布日期 |
1997.10.07 |
申请号 |
US19950526349 |
申请日期 |
1995.09.11 |
申请人 |
TEXACO INC. |
发明人 |
WILLIAMS, THOMAS MARION;SUPERNAW, IRWIN RAY |
分类号 |
G01T7/00;G01V5/04;(IPC1-7):G01V5/04 |
主分类号 |
G01T7/00 |
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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