Technip to Lay World’s Deepest Gas Pipeline In Gulf

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Shell Offshore Inc. has awarded Technip an engineering, procurement and installation contract for the development of subsea infrastructure for the Stones field. This field is located in the Walker Ridge area in the U.S. Gulf of Mexico, approximately 200 miles southwest of New Orleans, LA, at a water depth of approximately 9,500 feet. This development will host the deepest floating, production, storage and offloading (FPSO) unit in the world and will be Shell’s first FPSO in the Gulf of Mexico.
  Technip will install the subsea production system and Stones lateral gas pipeline, inclusive of associated project management, engineering and stalk fabrication.
  The gas export/import line connecting the Stones FPSO to the Walker Ridge Gathering System will have a length of approximately 22 miles. Tankers will transport oil from the Stones FPSO to U.S. refineries, and gas will be transported via pipeline.
  Technip’s operating center in Houston will perform the overall project management. The flowlines and risers will be welded at Technip’s spoolbase in Mobile, AL. The offshore installation is expected to be performed in the second half of 2014 by the Deep Blue, Technip’s deepwater pipelay vessel.
  Initial field development is slated to start with two subsea production wells tied back to the FPSO vessel, followed later by six additional production wells. All eight wells will be connected to the FPSO through a single drill center. The reservoir depth is around 26,500 feet below sea level and 17,000 feet below the mud line. This first phase of development is expected to have annual peak production of 50,000 boe/d from more than 250 MMboe of recoverable resources. The Stones field has significant upside potential and is estimated to contain over 2 billion boe of oil in place.