US 12,326,063 B2
Non-reactive colloid particles to stop gas migration in expandable metal applications
Roberto Vega, Singapore (SG); Rutger Evers, Singapore (SG); and Michael Linley Fripp, Singapore (SG)
Assigned to Halliburton Energy Services, Inc., Houston, TX (US)
Filed by Halliburton Energy Services, Inc., Houston, TX (US)
Filed on Sep. 13, 2023, as Appl. No. 18/466,132.
Prior Publication US 2025/0084722 A1, Mar. 13, 2025
Int. Cl. E21B 33/12 (2006.01); C09K 8/32 (2006.01); E21B 33/16 (2006.01)
CPC E21B 33/165 (2020.05) [C09K 8/32 (2013.01); E21B 33/12 (2013.01); E21B 33/1208 (2013.01); E21B 2200/08 (2020.05)] 37 Claims
OG exemplary drawing
 
1. A downhole tool, comprising:
a housing;
an expandable metal member positioned about the housing, the expandable metal member comprising a metal configured to expand in response to hydrolysis, wherein the expandable metal includes magnesium or aluminum;
colloid particles surrounding a surface of the expandable metal member; and
a dissolvable sleeve positioned about the colloid particles, the dissolvable sleeve configured to keep the colloid particles proximate the expandable metal member until such time as the expandable metal member is to undergo the hydrolysis.