Matterhorn TLP succeeds with Pseudo-Smart well completions

摘要

The Pseudo-Smart system, which Total E&P USA Inc. based on intelligent well technology, aided in the development of the Matterhorn field in the Gulf of Mexico. A complex and challenging completion scenario, which evolved through batch completions, complex well architecture, and deviations to 75°, emphasized the need for design. This design addressed operational issues and contingencies, minimized intervention, and provided reservoir management to maximize production. Total's Matterhorn field is in Mississippi Canyon block 243 in 2,811 ft of water. Mississippi Canyon block 243 is 30 mi southeast of the mouth of the Mississippi river and 100 mi southeast of New Orleans, Louisiana. Total batch drilled the wells with a semisubmersible drilling unit prior to the installation of the platform. Due to the shallow nature (approximately 3,500 ft below the mud line) of the upper-targeted sands, the operator kicked off some of the wells about 500 ft below the mud line, resulting in highly deviated wells with a maximum deviation of 72°. The operator then installed a Tri-Star TLP hull and topside with all of the wells tied back to the floating structure. The platform is capable of carrying nine top-tensioped 95/8-in., 97/8-in., or 103/4-in. production risers, seven of which the operator installed on the platform during commissioning.