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LaXsmANaMinggu, Juli 06, 2008. Measurement While Drilling "MWD" Services. 8226; Measurement While Drilling "MWD". Systems are installed in the drill string to provide real time measurements of basic trajectory parameters such as inclination, direction, tool-face and temperature. Additional sensors such as pressure,and gamma-ray and resistivity may be added depending upon the specific tool type and/or application. MWD tools consist of three basic sections;. Signals through the earth to surface. 8226; Mud Pulse.
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