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.