Schlumberger Drills and Completes First Coiled Tubing Horizontal Well

Schlumberger Oilfield Services successfully drilled and completed the first horizontal well in the Gulf of Mexico with CoilDRILL coiled drilling technology. Working in conjunction with the Spirit Energy 76 drilling team, Schlumberger Integrated Project Management (IPM) designed and drilled and completed the well. An exit window was milled through two strings of pipe, 1,390 ft. of 4.75 in. open hole was drilled with 750 ft. of this hole above 80 degrees. The well was then completed by conveying a horizontal completion assembly consisting of sand control screens, an inflatable packer for zonal isolation, and Dowell's QUANTUM gravel packer open hole isolation assembly on coiled tubing to 8,100 ft. This assembly was run and set in one trip which included cement inflation of the inflatable packer. It is the first Gulf of Mexico well where this completion has been run on coiled tubing. This was accomplished in a well that is 45 years old.