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Method and system for using conventional core data to calibrate bound water volumes derived from NMR logs
Method and system for using conventional core data to calibrate bound water volumes derived from NMR logs
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机译:使用常规岩心数据校准由NMR测井得出的结合水体积的方法和系统
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摘要
Disclosed are a method and system for developing customized bound water transformations to obtain accurate determinations of non-producible water from nuclear magnetic resonance (NMR) logs. The approaches of this invention can he applied for in situ calibration where laboratory NMR measurements may not be possible or practical. In particular, a transformation model directly linking BVI and capillary pressure is developed by calibrating NMR derived BVI with the core data, the novel transformation model utilizes SBVI and/or CBVI models to directly relate NMR derived BVI and capillary pressure responses through the height of the measurement in a borehole. The derived height-based BVI transformation model is applied to the NMR log of the borehole to quantify non-producible water in the NMR log.
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