发明名称 |
DETERMINATION OF IRREDUCIBLE WATER CUT-OFF USING TWO DIMENSIONAL NUCLEAR MAGNETIC RESONANCE DATA |
摘要 |
A method for estimating a distribution of pore sizes of a fluid filled rock formation penetrated by a borehole, the method including: processing nuclear magnetic resonance (NMR) data to determine a distribution of diffusion coefficients and a distribution of relaxation time constants for at least one depth in the borehole; plotting the distribution of diffusion coefficients and the distribution of relaxation time constants as a cross-plot for the at least one depth; identifying a water line on the cross-plot, each point on the water line having substantially the same value for the diffusion coefficient; and estimating the distribution of pore sizes from the distribution of relaxation time constants plotted along the water line.
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申请公布号 |
US2009248311(A1) |
申请公布日期 |
2009.10.01 |
申请号 |
US20080055678 |
申请日期 |
2008.03.26 |
申请人 |
BAKER HUGHES INCORPORATED |
发明人 |
COOPE DANIEL F.;ALBANNAW OSAMAH GH. A. GH. |
分类号 |
G01V3/38;G01V3/32 |
主分类号 |
G01V3/38 |
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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