US 11,851,982 B2
Well tools with components formed from pyrolytically degradable materials
Michael Linley Fripp, Carrollton, TX (US); Charles Timothy Smith, Edgewood, TX (US); and Chad William Glaesman, McKinney, TX (US)
Assigned to Halliburton Energy Services, Inc., Houston, TX (US)
Filed by Halliburton Energy Services, Inc., Houston, TX (US)
Filed on Apr. 12, 2021, as Appl. No. 17/228,171.
Prior Publication US 2022/0325604 A1, Oct. 13, 2022
Int. Cl. E21B 34/14 (2006.01); E21B 34/06 (2006.01); C09K 8/42 (2006.01); E21B 33/12 (2006.01); E21B 43/247 (2006.01)
CPC E21B 34/063 (2013.01) [C09K 8/426 (2013.01); E21B 33/1208 (2013.01); E21B 34/142 (2020.05); E21B 43/247 (2013.01); E21B 2200/08 (2020.05)] 20 Claims
OG exemplary drawing
 
1. A well tool, comprising:
a body; and
at least one barrier element comprising a pyrolytically degradable material that is positionable to block a flow of fluid across the body within a wellbore and to degrade by pyrolysis degradation over time within the wellbore, the pyrolysis degradation comprising an initiation phase including chain scission that produces free radicals for auto-accelerating the pyrolysis degradation, wherein the pyrolytically degradable material is a compound, the compound further comprising an initiator ingredient that is positionable with respect to the pyrolytically degradable material for auto-accelerating the initiation phase of the pyrolysis degradation, and wherein the initiator ingredient is peroxide or hydroperoxide.