US 12,331,614 B2
Methods, apparatus and systems for creating wellbore plugs for abandoned wells
Terizhandur S. Ramakrishnan, Boxborough, MA (US); Hua Zhang, Cambridge, MA (US); Quincy K. Elias, Hyde Park, MA (US); and Albert Perez, Brookfield, CT (US)
Assigned to SCHLUMBERGER TECHNOLOGY CORPORATION, Sugar Land, TX (US)
Filed by Schlumberger Technology Corporation, Sugar Land, TX (US)
Filed on Aug. 21, 2023, as Appl. No. 18/453,025.
Application 18/453,025 is a continuation of application No. 17/045,366, granted, now 11,732,547, previously published as PCT/US2018/034422, filed on May 24, 2018.
Claims priority of provisional application 62/652,015, filed on Apr. 3, 2018.
Prior Publication US 2024/0159124 A1, May 16, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. E21B 33/13 (2006.01); C09K 8/42 (2006.01); C09K 8/46 (2006.01); C22C 12/00 (2006.01); E21B 29/12 (2006.01); E21B 33/12 (2006.01); E21B 33/134 (2006.01); E21B 33/138 (2006.01); E21B 33/14 (2006.01); G01N 33/2028 (2019.01)
CPC E21B 33/13 (2013.01) [C09K 8/426 (2013.01); C09K 8/46 (2013.01); C22C 12/00 (2013.01); E21B 29/12 (2013.01); E21B 33/12 (2013.01); E21B 33/1208 (2013.01); E21B 33/134 (2013.01); E21B 33/138 (2013.01); E21B 33/143 (2013.01); G01N 33/2028 (2019.01)] 8 Claims
OG exemplary drawing
 
1. A system for plugging a wellbore traversing a formation, comprising:
a barrier deployed in the wellbore at or below a relatively permeable layer of the formation; and
a wellbore tool assembly including a packer deployed at a relatively impermeable layer of the formation, a tool body extending through the packer in the wellbore and comprising a fluid passageway having a fluid inlet located above the packer, a fluid outlet located below the packer, and a pump between said fluid inlet and fluid outlet for pumping fluid from above the packer to below the packer in the wellbore, said tool body including a bismuth alloy storage chamber storing bismuth alloy and adapted to release the bismuth alloy into the wellbore towards the barrier.