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A proven record in changing attitudes about MWD logs

Journal Article · · World Oil; (United States)
OSTI ID:6024709
Measurement while drilling (MWD) logs for quantitative reservoir characterization were evaluated during drilling of Gulf of Mexico flexure trend projects, Kilauea (Green Canyon Blocks 6 and 50) and Tick (Garden Banks Block 189). Comparisons confirmed that MWD can be used as an accurate replacement for wireline logging when borehole size is not a limiting factor. Texaco MWD experience evolved from last resort' to primary formation evaluation logging, which resulted in rigtime and associated cost savings. Difficult wells are now drilled and evaluated with confidence, geopressure is safely monitored, conventional core interval tops are selected, and geologic interpretations and operational decisions are made before wells TD. This paper reviews the performance, accuracy, and limitations of the MWD systems and compares the results to standard geophysical well logging techniques. Four case histories are presented.
OSTI ID:
6024709
Journal Information:
World Oil; (United States), Journal Name: World Oil; (United States) Vol. 214:7; ISSN 0043-8790; ISSN WOOIAS
Country of Publication:
United States
Language:
English