OSPMICROCHECK.COM | INFO@OSPMICROCHECK.COM CASE STUDY 2K7 BIOCIDE ADDRESSES PREMATURE COILED TUBING FAILURES IN THE MONTNEY FORMATION Comprehensive post-failure analysis identifies microbiologically influenced corrosion background Premature coiled tubing (CT) unit failure has been observed in certain areas of the United States, such as the Eagle Ford and Haynesville formations, and the Permian basin in Texas. This issue was not thought to be as prevalent in Canada until a recent Society of Petroleum Engineers (SPE) publication detailed how a major Canadian CT service company experienced an alarming seven CT string failures within three months while performing bridge plug mill-out operations in the northeastern British Columbia portion of the Montney formation 1 . The CT string po

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