F油田套损原因及预防对策研究

Study on the Causes of Casing Damage in Oilfield and Preventive Measures

套损类型主要分为破裂、外漏、变形和错断,F油田以变形和错断为主;影响因素归结起来大概分为地质、工程、开发三大因数。从F油田分布套损特点来看,断层和地质构造是造成套损主要地质因数;投产压裂和固井质量是造成套损的主要工程因数;注水压力、综合含水以及区块间的压差是造成套损主要开发因素。

The current types of casing damage are mainly divided into rupture, leakage, deformation and fault.The oil field is mainly composed of deformation and fault.The influencing factors are divided into three major factors ： geology, engineering and development.From the characteristics of casing casing damage distribution, the fault and geological structure are the main geological factors of casing damage.The fracturing and cementing quality is the main engineering factor of casing damage.Water injection pressure, comprehensive water content and inter-block Differential pressure is the main development factor caused by casing damage.