Lower Deepwater Development Costs With a Compact Rig and Solid Expandable Tubular Technology
With over 400 solid expandable tubular systems, a process emerged that combines existing expandable technology with the “compact” rig to significantly reduce deepwater exploratory and development drilling costs. This approach incorporates solid expandable tubulars to work as part of an overall system that includes the compact rig with its smaller blowout preventer (BOP) and riser. The process of “slenderizing” the well results in lower overall cost as operators are able to utilize compact rigs in deepwater environments previously requiring Generation 5 rigs. Solid expandable tubular systems allow casing strings with less diameter to be used from surface to total depth (TD) without compromising the objective hole size. Using this enabling technology results in significant benefits realized within project objectives regarding economic parameters, time constraints, and environmental concerns. In addition to slimming the well, solid expandable systems provide options that enhance, enable and encourage deepwater development. This paper will explain how solid expandable tubular technology impacts deepwater activities such as exploration, appraisal and development. Case histories provide real results and tangible value realized by operators who recognized the benefits of using solid expandable tubular technology.