MULTI-COMPONENT INDUCTION LOGGING SYSTEMS AND METHODS USING SELECTED FREQUENCY INVERSION
摘要
Formation properties may he more efficiently derived from measurements of multi-frequency, multi-component array induction tools, by emphasizing the measurements associated with shorter spacings/lower frequencies in certain regions and short-to-middle spacings/higher frequencies in other regions. In at least one embodiment, a disclosed logging system includes a logging tool that when conveyed along a borehole through a formation obtains multi-component transmit-receive antenna coupling measurements with multiple arrays having different antenna spacings; and a processing system that operates on the measurements. The processing system derives from said measurements one or more formation parameter estimates; determines measurement weight coefficients for a cost function based on said one or more formation parameter estimates; and inverts said measurements with said cost function to obtain one or more enhanced parameter estimates.
申请公布号
EP3105419(A1)
申请公布日期
2016.12.21
申请号
EP20140887817
申请日期
2014.06.19
申请人
Halliburton Energy Services, Inc.
发明人
WU, Dagang;HOU, Junsheng;DONDERICI, Burkay;SAN MARTIN, Luis, E.