US 12,291,938 B2
Running tool for a downhole aparatus for patching a wall of conduit and a method of patching a conduit
Einar Waage-Rasmussen, Hommersåk (NO); and Bengt Gunnarsson, Hundvåg (NO)
Assigned to ISEALATE AS, Stavanger (NO)
Appl. No. 17/913,642
Filed by ISEALATE AS, Stavanger (NO)
PCT Filed Mar. 23, 2021, PCT No. PCT/NO2021/050074
§ 371(c)(1), (2) Date Sep. 22, 2022,
PCT Pub. No. WO2021/194348, PCT Pub. Date Sep. 30, 2021.
Claims priority of application No. 20200342 (NO), filed on Mar. 23, 2020.
Prior Publication US 2023/0103962 A1, Apr. 6, 2023
Int. Cl. E21B 36/00 (2006.01); E21B 29/10 (2006.01); E21B 33/138 (2006.01); E21B 43/10 (2006.01)
CPC E21B 33/138 (2013.01) [E21B 29/10 (2013.01); E21B 36/00 (2013.01); E21B 43/103 (2013.01); E21B 43/105 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A running tool for a downhole apparatus for patching a wall of a casing in a wellbore, wherein the apparatus comprises:
a plurality of pieces of material for patching the wall of the casing,
wherein the running tool comprises one or more compartments configured to hold the plurality of pieces of material for being released for patching the wall of the casing, and wherein the running tool is arranged for allowing selective release of the plurality of pieces of material, wherein the running tool further comprises:
a forcing device configured to apply a force to each said piece of material for forcing or holding the piece of material against the wall of the casing,
wherein the forcing device includes an expandable device, and
wherein the tool further comprising a hydraulic actuator configured to expand the expandable device.