发明名称 |
WELL FLUID SAMPLING TOOL AND WELL FLUID SAMPLING METHOD |
摘要 |
A well fluid sampling tool and method for retrieving reservoir fluid samples from deep wells. The sampling tool is lowered to the required depth, an internal sample chamber is opened to admit well fluid at a controlled rate, and the sample chamber is then automatically sealed. The temperature of the sampled well fluid is maintained at or near initial as-sampled temperature to avoid the volumetric shrinkage otherwise induced by temperature reduction, mitigate precipitation of compounds from the sample, and/or maintain the initial single-phase condition of the sample. The sample chamber is thermally insulated, provided with a storage heater, electrically heated, given a high heat capacity, and/or pre-heated to sample temperature.
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申请公布号 |
WO9612088(A1) |
申请公布日期 |
1996.04.25 |
申请号 |
WO1995GB02435 |
申请日期 |
1995.10.16 |
申请人 |
OILPHASE SAMPLING SERVICES LIMITED;BROWN, JONATHAN, WEBSTER;MASSIE, KEITH, JAMES |
发明人 |
BROWN, JONATHAN, WEBSTER;MASSIE, KEITH, JAMES |
分类号 |
E21B49/08;(IPC1-7):E21B49/08 |
主分类号 |
E21B49/08 |
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