公开(公告)号：US20230340856A1

公开(公告)日：2023-10-26

申请号：US18304121

申请日：2023-04-20

Applicant: CONOCOPHILLIPS COMPANY

Inventor： Jan Ove SOERHEIM ,  Lars ALBERTSEN ,  Rune WOIE

IPC: E21B33/12 ,  E21B47/06 ,  E21B33/04 ,  E21B34/06

CPC classification number: E21B33/1208 ,  E21B47/06 ,  E21B33/04 ,  E21B34/06

Abstract: In the process of suspending a subsea hydrocarbon well (1) after finalizing the completion operation and prior to stimulation of the well and putting the well on production, preinstalled upper and lower glass plugs (11, 12) are used as temporary barriers in the tubing. The plugs allow various tests to be performed before the lower plug (12), below the production packer (10), is broken; the upper plug (11) located above the downhole safety valve (13) then forms one of the barriers required to suspend the well whilst the Blow Out Preventer (BOP) is removed and Xmas tree installed, at which point the upper plug (11) is broken.

公开(公告)号：US20230144711A1

公开(公告)日：2023-05-11

申请号：US18053841

申请日：2022-11-09

Applicant: CONOCOPHILLIPS COMPANY

Inventor： Jan Ove SOERHEIM ,  Maxim PROSVIRNOV ,  Elizabeth R. MATHIS ,  Tollef SVENUM

IPC: E21B43/27

CPC classification number: E21B43/27

Abstract: The invention relates to a method and apparatus for performing acid stimulation of a hydrocarbon well (1), especially in a multi-lateral branched well system. In the first lateral (8), after installation of the production liner (9) with ball-activated completion equipment (10), acid stimulation is performed through drill string (21) which is introduced into the well and which seals with the production liner (9) by means of a stinger (22) and polished bore receptacle (23) before introduction of acid.

公开(公告)号：US20220268128A1

公开(公告)日：2022-08-25

申请号：US17668562

申请日：2022-02-10

Applicant: CONOCOPHILLIPS COMPANY

Inventor： Jan Ove SOERHEIM ,  Tollef SVENUM

IPC: E21B41/00 ,  E21B34/06 ,  E21B43/10

Abstract: The invention relates to an improved method for installing a dual/multiple lateral well where the overburden casing is relatively narrow. A tapered liner is employed for the first lateral. The liner has a narrow production section (109) and a larger diameter section (104) allowing a liner (116) for Lateral B to be run through it, after a window (114) has been milled. The system saves a drilling run and a liner installation run, as well as avoiding the need to set a liner hanger in Lateral A.