发明名称 |
METHOD AND SYSTEM FOR REAL-TIME MONITORING OF EARTH FORMATION FRACTURE MOVEMENT |
摘要 |
<p>A method of monitoring formation fractures in real-time is performed in which a fluid containing a radio-active tracer element is pumped at a high pressure down a wellbore into a formation. As the fluid creates fractures and moves through the formation gamma-rays are emitted from the radio-active tracer element in thefluid. Detector means placed at predetermined locations in the wellbore continuously detect these gamma-rays. Gamma-rays emitted from wellbore fracture fluids are distinguished from formation gamma-rays and the detected formation gamma-rays are counted. As the fracture fluid approaches the height or vertical depth of these detector means, the gamma-ray count increases. Once the gammaray count reaches a predetermined level, the fracture will have reached a desired location in the formation and pumping of the fracture fluid will stop.</p> |
申请公布号 |
CA2143892(A1) |
申请公布日期 |
1995.09.05 |
申请号 |
CA19952143892 |
申请日期 |
1995.03.03 |
申请人 |
SCHLUMBERGER CANADA LIMITED |
发明人 |
WRAIGHT, PETER D. |
分类号 |
E21B43/26;E21B47/10;G01V5/12;(IPC1-7):G01V5/00 |
主分类号 |
E21B43/26 |
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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