Cotton Valley reef pipeline, E&D expand

Workers lay 20-in. pipeline as part of Delhi's second-phase expansion. (Photo courtesy of Delhi Gas Pipeline Corp.) Operators continue to develop infrastructure in the upper Jurassic Cotton Valley pinnacle reef play in East Texas. Delhi Gas Pipeline Corp., Dallas, a member of USX-Delhi Group, a USX Corp. unit, has completed its second-phase system expansion (OGJ, Mar. 10, 1997, p. 34). Delhi said this phase adds more than 275 MMcfd of incremental gas gathering and treating capacity. Meanwhile, Sonat Exploration Co., a unit of Sonat Inc., drilled its fourth pinnacle reef discovery in Leon County. The 3 Cook, drilled to 15,840 ft total depth, encountered a g...

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