US 11,807,804 B2
Method for sealing a bore
Peter James Tait, Acacia Ridge (AU)
Assigned to Solutions for Millennia Pty Ltd, Spring Hill (AU)
Filed by Solutions for Millennia Pty Ltd, Spring Hill (AU)
Filed on Jun. 15, 2022, as Appl. No. 17/840,879.
Claims priority of application No. 2021901890 (AU), filed on Jun. 23, 2021.
Prior Publication US 2022/0411688 A1, Dec. 29, 2022
Int. Cl. E21B 33/138 (2006.01); C09K 8/42 (2006.01)
CPC C09K 8/426 (2013.01) [E21B 33/138 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A method for plugging a bore comprising:
pumping a slurry composition comprising a swellable phyllosilicate clay in an amount of 70 wt % or less into the bore,
permitting compaction of the phyllosilicate clay in the slurry to plug the bore
wherein the method further comprises maintaining a target slurry level of the slurry composition within the bore; and
wherein the step of maintaining the slurry level comprises monitoring a slurry level within the bore and, if the slurry level decreases below the target slurry level, introducing additional slurry composition into the bore to raise the slurry level to at least the target slurry level.