LOGGING WITH COILED TUBING LESS EFFECTIVE THAN WITH DRILL PIPE

01/31/1994
Rainer van den BoschMobil Erdgas-Erdol GmbHCelle, Germany Coiled tubing offered neither economic nor operational advantages over drill pipe for conveying logging tools in open hole shallow horizontal wells in Germany. In the past 2 years, Mobil Erdgas Erdol GmbH (MEEG) participated in completing eight shallow horizontal wells. These were medium to short radius wells at measured depths of between 850 and 2,000 m (2,789 6,662 ft). The average horizontal section was 350 m (1,148 ft). The logging tools were conveyed by coiled tubing or drill pipe. MEEG attempted to log five wells with coiled tubing-conveyed tools, four with 1 in. ...
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