US 12,305,484 B2
Pre-positioning a meltable seal for plug and abandonment
David Lyall Mitchell, 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 Nov. 1, 2022, as Appl. No. 17/978,828.
Prior Publication US 2024/0141754 A1, May 2, 2024
Int. Cl. E21B 34/14 (2006.01); E21B 33/13 (2006.01); E21B 36/00 (2006.01)
CPC E21B 34/142 (2020.05) [E21B 33/13 (2013.01); E21B 36/008 (2013.01); E21B 2200/06 (2020.05)] 20 Claims
OG exemplary drawing
 
1. A method comprising:
disposing a conduit in a wellbore, wherein the conduit forms an interior flow path for fluids through an interior of the conduit, and wherein the interior flow path extends along a longitudinal axis of the conduit;
moving a sliding sleeve of the conduit;
exposing a meltable sealant that is pre-installed on an inner diameter (ID) of the conduit,
applying a heat to the meltable sealant to melt the meltable sealant from a solid state to a molten state;
stopping the heat to the meltable sealant to cool and to solidify the meltable sealant and form a plug in the conduit to block the interior flow path inside the conduit.