Patent ID: 9719328
Date: 2017-08-01
CPC Classifications: E21B

Claim:
1. A downhole tool system, comprising: a downhole tool string configured to couple to a downhole conveyance that extends in a wellbore from a terranean surface through at least a portion of a subterranean zone, the subterranean zone comprising a geologic formation, the downhole tool string comprising a bottom hole assembly that includes a drill bit configured to form the wellbore; and a heating device coupled with the downhole tool string uphole of the bottom hole assembly and the drill bit, the heating device configured to transfer heat to the geologic formation in the wellbore at a specified temperature sufficient to adjust a quality of the geologic formation associated with a fluid absorption capacity of the geologic formation, and the heating device is configured to transfer heat to a radial surface of the geologic formation in a first portion of the wellbore that is directly adjacent the heating device during operation of the drill bit in a second portion of the wellbore downhole of the first portion of the wellbore, wherein the quality of the geologic formation associated with the fluid absorption capacity of the geologic formation comprises a cationic exchange capacity of the geologic formation.