Patent ID: 9663706
Date: 2017-05-30
CPC Classifications: C09K,E21B

Claim:
1. A method of treating a geologic formation having one or more pathways through which a fluid may flow from a wellbore into the geologic formation, comprising: preparing a fiber laden fluid viscosified solely by a crosslinked polymer such that the initial fluid viscosity is higher than or equal to 100 cP; injecting the fiber laden fluid into a wellbore such that, during injection, the fibers exhibit flocking inside the wellbore resulting from a viscosity reduction triggered by exposure to a viscosity reducing agent; and sealing the one or more pathways by allowing the flocked fibers to bridge across or within pathways leading from the wellbore into the geologic formation, thereby controlling fluid flow from the inside of the wellbore into the geologic formation,