公开(公告)号：US12203338B2

公开(公告)日：2025-01-21

申请号：US17087283

申请日：2020-11-02

Applicant: ConocoPhillips Company

Inventor： Hans Martin Leistad ,  Donald R. Girdler ,  Leif Arne Kvarme

IPC: E21B37/00 ,  C09K8/42 ,  E21B33/14 ,  E21B34/06 ,  E21B34/10 ,  E21B37/10 ,  E21B43/10

Abstract: A procedure and apparatus for cementing and cleaning a reservoir liner 3 comprises installing a reservoir liner using a drill string 4 which extends only as far as the distal end of a cased part 2 of the well, then, using the drill string, displacing cement into the reservoir liner using completion fluid whereby, when the cement is in place in the annulus around the reservoir liner, the reservoir liner is already clean and filled with completion fluid. A ball valve 6 at the top of the reservoir liner 3 is then closed before the cased part 2 of the wellbore is cleaned, to avoid debris entering the reservoir liner.

公开(公告)号：US11927066B2

公开(公告)日：2024-03-12

申请号：US17214238

申请日：2021-03-26

Applicant: CONOCOPHILLIPS COMPANY

Inventor： Eivind Christoffer Eike Halvorsen ,  Leif Arne Kvarme

IPC: E21B33/038 ,  E21B33/06 ,  E21B34/02

CPC classification number: E21B33/038 ,  E21B33/063 ,  E21B34/02

Abstract: A suspension head (11) is provided for connection between a high pressure riser (8) and a subsea wellhead (9), for use in drilling and completion operations in which a jack-up rig (1) is employed and a blowout preventer (7) is installed on the jack-up rather than on the wellhead. The use of the suspension head (11) offers improved safety and convenience, allowing the riser (8) to be isolated from the wellhead (9) in emergencies or for carrying out certain operations which would otherwise require the installation of a temporary plug.
(FIG. 1)

公开(公告)号：US10851618B2

公开(公告)日：2020-12-01

申请号：US16195541

申请日：2018-11-19

Applicant: ConocoPhillips Company

Inventor： Hans Martin Leistad ,  Donald R. Girdler ,  Leif Arne Kvarme

IPC: E21B33/13 ,  E21B33/14 ,  E21B33/16 ,  E21B37/00 ,  E21B43/10 ,  E21B34/06 ,  E21B34/10 ,  E21B37/10 ,  C09K8/42

Abstract: A procedure and apparatus for cementing and cleaning a reservoir liner 3 comprises installing a reservoir liner using a drill string 4 which extends only as far as the distal end of a cased part 2 of the well, then, using the drill string, displacing cement into the reservoir liner using completion fluid whereby, when the cement is in place in the annulus around the reservoir liner, the reservoir liner is already clean and filled with completion fluid. A ball valve 6 at the top of the reservoir liner 3 is then closed before the cased part 2 of the wellbore is cleaned, to avoid debris entering the reservoir liner.