公开(公告)号：US20210189827A1

公开(公告)日：2021-06-24

申请号：US17100081

申请日：2020-11-20

Applicant: CONOCOPHILLIPS COMPANY

Inventor： Leif KVARME ,  John SPENCE ,  Birger HEIGRE

IPC: E21B33/076 ,  E21B34/04 ,  E21B43/27 ,  E21B19/16 ,  E21B19/00

Abstract: The invention relates to the introduction of pressurized fluid, e.g. acid, into a subsea well directly from a vessel (33). A fluid injection assembly (20) is fitted to the top of a subsea Xmas tree (3), the assembly (20) including fail safe closed valve (21) which is controlled via a hydraulic line (31) from the vessel. The hose and assembly and valve are designed with an internal bore allowing a large diameter ball to be dropped (required for acid stimulation). The subsea subsea control module (8) on the Xmas tree is controlled from the producing platform.

公开(公告)号：US20230078342A1

公开(公告)日：2023-03-16

申请号：US18050301

申请日：2022-10-27

Applicant: CONOCOPHILLIPS COMPANY

Inventor： Leif KVARME ,  John SPENCE ,  Birger HEIGRE

IPC: E21B33/076 ,  E21B43/27 ,  E21B19/00 ,  E21B19/16 ,  E21B34/04

Abstract: The invention relates to the introduction of pressurized fluid, e.g. acid, into a subsea well directly from a vessel (33). A fluid injection assembly (20) is fitted to the top of a subsea Xmas tree (3), the assembly (20) including fail safe closed valve (21) which is controlled via a hydraulic line (31) from the vessel. The hose and assembly and valve are designed with an internal bore allowing a large diameter ball to be dropped (required for acid stimulation). The subsea subsea control module (8) on the Xmas tree is controlled from the producing platform.