公开(公告)号：US20220290526A1

公开(公告)日：2022-09-15

申请号：US17829970

申请日：2022-06-01

Applicant: CONOCOPHILLIPS COMPANY

Inventor： Dan MUELLER ,  Geir Ove TITLESTAD ,  David D. HEARN ,  Curtis G. BLOUNT ,  Rick D. WATTS ,  Randall S. SHAFER ,  Dale R. DOHERTY

IPC: E21B33/13 ,  E21B43/11 ,  E21B29/00

Abstract: Method of plugging a hydrocarbon well by a through-tubing technique are described. The method allows the tubing to be left in place. Only a short (

公开(公告)号：US20190128092A1

公开(公告)日：2019-05-02

申请号：US16175090

申请日：2018-10-30

Applicant: ConocoPhillips Company

Inventor： Dan MUELLER ,  Geir Ove TITLESTAD ,  David D. HEARN ,  Curtis G. BLOUNT ,  Rick D. WATTS ,  Randall S. SHAFER ,  Dale R. DOHERTY

IPC: E21B33/13 ,  E21B29/00 ,  E21B43/11

Abstract: Method of plugging a hydrocarbon well by a through-tubing technique are described. The method allows the tubing to be left in place. Only a short (

公开(公告)号：US20190003282A1

公开(公告)日：2019-01-03

申请号：US16021916

申请日：2018-06-28

Applicant: CONOCOPHILLIPS COMPANY

Inventor： Dale R. DOHERTY

IPC: E21B33/14 ,  E21B34/14

CPC classification number: E21B33/146 ,  E21B33/10 ,  E21B33/16 ,  E21B34/14 ,  E21B2034/007

Abstract: Methods, systems, and devices for sealing stage tool leaks are disclosed. In one aspect a stage tool for wellbore cementing comprises an external stage tool body and a sliding sleeve within the external stage tool body configured to regulate cement flow through the stage tool. At least a portion of the sliding sleeve comprises a meltable alloy configured to seal a leak. The meltable alloy is configured to be melted by a heating source, flow into the leak, and resolidify as the melted alloy cools, thereby sealing the leak.