PART Ⅰ: Poseidon 29,000-ft well in 4,800-ft depths harbinger of future for US Gulf

摘要

Oil and gas producers in the US Gulf of Mexico long ago drilled up the shallow seismically visible deposits on the continental shelf and within the last decade accessed the large deepwater reserves on the slopes and fans. This left the more-difflcult-to-access reserves in ultra-deepwater and deep under the seafloor.rnThe challenges, both economic and technical, are manifold for ultra-deepwater reserves. Less well known are the challenges in pursuing very deep reserves - wells in excess of 15,000-18,000 ft vertical depth.