发明名称 |
API estimate using multiple fluorescence measurements |
摘要 |
A method for evaluating the API gravity of a sample of underground formation includes steps of: Solvating a known volume of an underground formation sample in a known volume of a solvent which will solvate hydrocarbons; Quantitatively measuring with a changeable filter portable fluorometer the emission fluorescence of the solvated sample at a fixed excitation wavelength with measurements of emission intensities at two points; characterizing the oil by the ratio of two emission intensities obtained at a fixed excitation wavelength; determining the yield; applying regression analysis to a data base of oils to obtain an equation which results in an algorithm value; and interpreting the value of the algorithm to give a value for API gravity and estimate in-situ oil concentration.
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申请公布号 |
US5780850(A) |
申请公布日期 |
1998.07.14 |
申请号 |
US19960664485 |
申请日期 |
1996.06.17 |
申请人 |
TEXACO INC. |
发明人 |
DELAUNE, PATRICK LEE;SPILKER, KERRY KENNEDY;WRIGHT, ALAN CAMERON |
分类号 |
E21B49/00;G01N21/64;G01N33/24;G01N33/28;(IPC1-7):G01V5/00 |
主分类号 |
E21B49/00 |
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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