P.E. Pilkington Conoco Inc. Houston Evaluating cement between two strings of casing can be a problem. The signal from the outer string of casing can interfere with amplitude measurement if the inner ...
EnCana Corp. had a new rig built for reverse-circulation airlift drilling to prevent lost-circulation through thick, fractured, vuggy basalts. Encana was faced with drilling Miocene basalt sections as ...
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