发明名称 |
Determining the viscosity of a hydrocarbon reservoir fluid |
摘要 |
Determining the viscosity of a hydrocarbon reservoir fluid that is present in a formation layer traversed by a borehole, which method involves the steps of selecting a location in the formation layer; lowering in the borehole to the location a tool that has a central conduit having an inlet, means for displacing fluids through the central conduit, and an optical fluid analyzer; making an exclusive fluid communication between the formation and the inlet of the central conduit; obtaining a spectrum of the optical density; calculating a first factor that is the maximum optical density in a predetermined short-wavelength range multipled with the length of the short-wavelength range, calculating a second factor which is the integral over the same short-wavelength range of the spectrum, subtracting the second factor from the first factor to obtain a hydrocarbon oil property; and obtaining the magnitude of the in-situ viscosity from the oil property using a relation that has been obtained by fitting a curve through previously obtained data points having the measured magnitude of the actual viscosity as a function of the oil property. |
申请公布号 |
AU2002246041(B2) |
申请公布日期 |
2006.04.06 |
申请号 |
AU20020246041 |
申请日期 |
2002.01.17 |
申请人 |
SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V. |
发明人 |
GUSTAVO, ANTONIO UGUETO;MOHAMED, NAGUIB HASHEM |
分类号 |
E21B49/08;G01N33/28;G06F19/00 |
主分类号 |
E21B49/08 |
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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