Patent ID: 9267257
Filing Date: 2016-02-23
CPC Classification: C09K,E02B,E02D,E21B

Claim Text:
1. A process for the treatment of a rock formation or cavity, comprising the following steps: injection of water into the rock formation or cavity, said water being at a temperature (T injection, into said rock formation or cavity, of a water solution of a water-soluble thermo-thickening polymer, said thermo-thickening polymer being able to form a gel at a threshold temperature (T the thermo-thickening polymer solution being injected in liquid form, at an injection temperature (T the thermo-thickening polymer being a cellulose chain, partially etherified with C so that a gel is formed by the thermo-thickening polymer solution inside the rock formation or cavity, at an inner temperature (T