Casing Damage Maintenance Technology Of Heavy Oil Thermal Recovery Wells In Liaohe Oilfield

In view of the heavy oil block in liaohe oilfield,the failure of the original well is serious,the high heavy oil adhere to the well wall and the high ratio of casing damage seriously affect the quality of the cementing well.This paper analyzes and studies the geological conditions and engineering factors that affect the construction quality of cementing and makes a solution and solves the problem one by one.This paper expatiates these methods theoretically and practically,and adopts some methods such as improving traditional process and introducing new technology to improve the quality of cementing.This paper presents a new kind of biodegradable temporary plugging agent and a new type of high effective wear-resistant milling cone for the heavy well mentioned in this paper.