Invention Grant
- Patent Title: Determining borehole corrected formation on properties
- Patent Title (中): 确定钻孔校正结构的性质
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Application No.: US12597977Application Date: 2008-05-08
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Publication No.: US08571797B2Publication Date: 2013-10-29
- Inventor: Peter T. Wu , Hanming Wang , Gerald N. Minerbo
- Applicant: Peter T. Wu , Hanming Wang , Gerald N. Minerbo
- Applicant Address: US TX Sugar Land
- Assignee: Schlumberger Technology Corporation
- Current Assignee: Schlumberger Technology Corporation
- Current Assignee Address: US TX Sugar Land
- Agent Kenneth Liu; Jeremy Berman
- International Application: PCT/US2008/063052 WO 20080508
- International Announcement: WO2008/137987 WO 20081113
- Main IPC: G01V3/38
- IPC: G01V3/38

Abstract:
A method to determine one or more borehole corrected formation properties using measurements made using a logging tool disposed in a borehole penetrating an earth formation is disclosed. The measurements are used to determine an apparent conductivity tensor for the formation and, for a set of parameters, a parameter value for each parameter in a subset of the set of parameters. A parameter value for each parameter in the set of parameters not in the subset is provided and a borehole-inclusive modeled conductivity tensor is computed. The apparent conductivity tensor and the borehole-inclusive modeled conductivity tensor are iteratively used to optimize the parameter values, and the optimized parameter values are used to compute an optimized conductivity tensor. A borehole corrected conductivity tensor is computed using the optimized conductivity tensor, and the borehole corrected formation properties are determined using the borehole corrected conductivity tensor and/or the optimized parameter values.
Public/Granted literature
- US20100198569A1 DETERMINING BOREHOLE CORRECTED FORMATION PROPERTIES Public/Granted day:2010-08-05
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