WELL TREATMENT FLUID MATERIAL AND WELL TREATMENT FLUID COMPRISING THE SAME

摘要

A well treatment fluid material comprising: 100 parts by mass of a polyester resin containing 50 mass% or more of a lactic acid-type resin; and at least one decomposition accelerator selected from an organophosphorus compound in an amount of 0.01 to 10 parts by mass and a carboxylic acid anhydride in an amount of 10 to 50 parts by mass.