公开(公告)号：US12037866B2

公开(公告)日：2024-07-16

申请号：US18056401

申请日：2022-11-17

Applicant: CONOCOPHILLIPS COMPANY

Inventor： Eivind C. Eike Halvorsen ,  Leif Kvarme ,  Rune Woie

IPC: E21B33/043

CPC classification number: E21B33/043

Abstract: The invention relates to the alignment of a tubing hanger (14) when installed in a subsea wellhead (11). Sensors (39a,b; 40a,b) detect when the orientation is correct and send a signal to the surface to provide positive confirmation of correct orientation, before a XMT (15) is installed on the wellhead (11) and the HP riser (31) removed, etc.

公开(公告)号：US11512550B2

公开(公告)日：2022-11-29

申请号：US17100081

申请日：2020-11-20

Applicant: CONOCOPHILLIPS COMPANY

Inventor： Leif Kvarme ,  John Spence ,  Birger Heigre

IPC: E21B19/16 ,  E21B33/076 ,  E21B34/04 ,  E21B43/27 ,  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：US12209475B2

公开(公告)日：2025-01-28

申请号：US18676188

申请日：2024-05-28

Applicant: CONOCOPHILLIPS COMPANY

Inventor： Leif Kvarme ,  John Spence ,  Birger Heigre

IPC: E21B19/16 ,  E21B19/00 ,  E21B33/076 ,  E21B34/04 ,  E21B34/06 ,  E21B43/27

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：US12018540B2

公开(公告)日：2024-06-25

申请号：US18050301

申请日：2022-10-27

Applicant: CONOCOPHILLIPS COMPANY

Inventor： Leif Kvarme ,  John Spence ,  Birger Heigre

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

CPC classification number: E21B33/076 ,  E21B19/004 ,  E21B19/16 ,  E21B34/04 ,  E21B43/27

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：US11585179B2

公开(公告)日：2023-02-21

申请号：US17493301

申请日：2021-10-04

Applicant: CONOCOPHILLIPS COMPANY

Inventor： Rune Woie ,  Leif Kvarme

IPC: E21B33/035

Abstract: The invention relates to the drilling of subsurface oil and gas wells and the installation of subsurface equipment (11). A lifting vessel 7 brings heavy equipment such as Xmas trees or manifolds and wet parks this equipment (11) on the seafloor (5) during good weather when the significant wave height is low. The equipment (11), once it is underwater, has much lower weight and may easily be moved into place onto a wellhead (10) at an appropriate time using lower capacity lifting gear. The timing of this operation is much less sensitive to weather conditions because the equipment does not need to pass through the splash zone (sea surface). This makes for efficient use of expensive drilling rig time, and allows for acceleration of production of first wells on the template as critical heavy lifts could not else be done until rig has left the location. (FIG. 1).