公开(公告)号：US11268359B2

公开(公告)日：2022-03-08

申请号：US17100316

申请日：2020-11-20

Applicant: CONOCOPHILLIPS COMPANY

Inventor： Lars Christian Tronstad Bahr ,  John P. Spence ,  Svein Kristian Furre

IPC: E21B34/04 ,  E21B34/06 ,  E21B43/013 ,  E21B43/12 ,  E21B43/27 ,  E21B47/06 ,  E21B47/07 ,  E21B47/13

Abstract: The invention relates to the fluid treatment, such as acid stimulation, of a subsea hydrocarbon well via a subsea wellhead/Christmas tree. Fluid is delivered directly to the subsea wellhead from a pumping vessel. Control of the delivery of fluid is from the pumping vessel via a fail-safe close valve in the delivery line. The Christmas tree subsea module is controlled directly from a host platform via a subsea cable, whilst a radio data link between the vessel and host platform provides communication of downhole data to the pumping vessel during the operation.