SPECIAL REPORT: CLOSED-LOOP CIRCULATING—3: Automation provides SCADA level safety, efficiency

David Pavel, Brian GraysonWeatherford International Ltd.HoustonAdding automation to a closed-loop circulating system improves information and management capabilities that contribute to greater safety and efficiency in drilling operations.This third part of a four-part series of articles describes the type of automation available for closed-loop systems. The two previous articles (OGJ, Dec. 6, 2010, p. 84, and Jan. 3, 2011, p. 86) covered the system fundamentals and manual pressure management.The concluding part (OGJ, Mar. 7, 2011) will examine how closed-loop pressure data help optimize a well plan and enhance a well completion.Managing wellbore pressure in a closed-loop system affords ad...

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