High-temp. MWD, LWD tools help South Texas wells

Acquiring wellbore and formation data in high-temperature South Texas wells is often limited by the ability of measurement-while-drilling (MWD) and logging-while-drilling (LWD) technology to operate in hostile wellbore environments. In two recent applications, Newfield Exploration Co. significantly improved on those operational limits when it acquired high-quality data at unprecedented temperature extremes. Accurate real-time MWD steering was accomplished at bottomhole circulating temperatures (BHCT) that reached 363° F. (184° C.). High-quality, triple-combo LWD data were acquired at temperatures greater than 340° F. (171° C.) BHCT. In both instances, Newfield perform...

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