WELL TREATMENT METHOD BY DISINTEGRATING ELASTIC MATERIAL BY CONTACTING SEAL MEMBER FOR DOWNHOLE TOOLS COMPRISING ELASTIC MATERIAL WITH WELL TREATMENT FLUID

摘要

Provided is a well-processing method, characterized in that a seal member (preferably one having a hardness of A60 to D80) for use as a downhole tool containing an elastic material is brought into contact with a well-processing fluid (acids such as hydrochloric acid, formic acid, acetic acid, hydrofluoric acid, or the like, alkali, hot water, steam, and organic solvents, and the like), to thereby induce collapse of the elastic material.