油气储层多裂缝形成机理研究—以腰英台油田为例  

Formation mechanism of multiple fractures in oil and gas reservoir:taking Yaoyingtai oilfield asinstance

作　　者：孙昆[1] 曾正荣[2] 陈敏华 

机构地区：[1]中国石化东北油气分公司工程技术研究院,吉林长春130062 [2]中石油西南油气田分公司蜀南气矿,四川泸州646001 [3]中国石油辽河油田茨榆坨采油厂,辽宁盘锦124000

出　　处：《石油化工应用》2014年第5期67-71,共5页Petrochemical Industry Application

基　　金：国家自然科学基金项目"超深层油气藏岩石垂向分布规律及渗流特征研究"部分研究成果;项目编号:50874114

摘　　要：裂缝是储层流体的重要渗流通道,它的形成和发展将直接影响到油气从储层到井筒中的运移。因此,研究油气储层裂缝形成机理对认识储层中特征,合理开发油气藏有重要的意义。以腰英台油田为例,研究了储层中的多裂缝形成机理。分析了不同的储层多裂缝情况。并通过实例计算等手段,研究了地应力状况、天然微裂缝、井斜和地层倾斜、射孔和微环面等因素对储层的多裂缝的影响。为正确认识油气储层的微裂缝机理提供一定的理论参考。Fracture, which is the most important flow channel for fluid in reservoir, is signifi- cant for the seepage from formation to wellbore. And it is of great importance to investigate the fracture formation mechanism. Taken Yaoyingtai oilfield as example, the multiple frac- tures formation mechanism was studied and different multiple fractures conditions were ana- lyzed as well. Through example calculation, influence of different elements （ground stress, natural micro fracture, hole deviation/formation inclination, perforation, micro torus et al.） on multiple fractures was investigated. This study can provide theory evidence for the mecha- nism learning of multiple fractures formation.

关 键 词：多裂缝 形成机理 天然裂缝 实例研究 

分 类 号：P618.13[天文地球—矿床学]