发明名称 |
Method for Quantifying Resistivity and Hydrocarbon Saturation in Thin Bed Formations |
摘要 |
A method for estimating hydrocarbon volume in a layered subsurface formation includes determining a vertical resistivity and a horizontal resistivity in the formation. A bound water saturation and a total porosity of individual layers of the formation are determined. Values of horizontal resistivity and vertical resistivity of the formation are calculated based on the bound water saturation and the total porosity for each layer and on an estimated irreducible bulk volume of water in each layer. The estimated values are compared to the determined horizontal resistivity and vertical resistivity. The estimated irreducible water saturation in each layer is adjusted and estimating the values is repeated until differences between the estimated values and the determined vertical and horizontal resistivity values fall below a selected threshold. The hydrocarbon volume is estimated from the adjusted irreducible water saturation for each layer.
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申请公布号 |
US2009043510(A1) |
申请公布日期 |
2009.02.12 |
申请号 |
US20070836269 |
申请日期 |
2007.08.09 |
申请人 |
SCHLUMBERGER TECHNOLOGY CORPORATION |
发明人 |
ALLEN DAVID F.;BORDAKOV GEORGIY |
分类号 |
G01V1/40 |
主分类号 |
G01V1/40 |
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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