Estimation of Oil Water Contact in Development Wells with the Help of Variable Density Logs

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Keshri Nandan Pande
Oil and Natural Gas Commission India

SPWLA TWENTY-FOURTH ANNUAL LOGGING SYMPOSIUM, JUNE 27-30, 1983

1983

Abstract

Sometimes in development wells, open hole logs are not available due to hole problems or high inclination. Under such conditions it becomes difficult to locate the oil-water (0/W) contact and select the layer to perforate for production. The cement bond log (CBL) and variable density log (VDL), which are recorded to assess the quality of cementation, are useful to identify the O/W contact.’ This is possible because it is observed that the compressional wave has different travel times for oil bearing layers than for water bearing layers in the same lithology.