江汉油田盐间非砂岩油藏应力敏感特征  

STRESS SENSITIVITY CHARACTERS OF INTER-SALT NON-SANDSTONE RESERVOIR IN JIANGHAN OILFIELD

作　　者：黄亚杰[1] 解琪[1] 

机构地区：[1]江汉油田公司采油工艺研究院,湖北潜江433123

出　　处：《石油钻采工艺》2005年第5期75-77,共3页Oil Drilling & Production Technology

摘　　要：江汉油田盐间非砂岩油藏岩性复杂,应力异常,后期开发中存在问题较多,增产工艺措施见效率低。经历了40多年的开发,仍然很难对该类油藏进行合理有效地开发。从应力敏感方面对该类油藏进行了分析,并与砂岩储层进行了对比,发现盐间非砂岩储层具有较强的应力敏感特征,这种敏感特征也是影响后期开发效果的一个重要因素。这类油藏应注重早期注水,控制生产压差,开发过程中尽量维持地层原始压力系统,在一定程度上可以缓解单井产量下降快、油井措施后有效期短等问题。There is abundance oil in jianghan inter-salt nonsandstone reservoir,but it is difficulty to exploration because of complex lithology and abnormal stress.Analyzed effect of stress to this reservoir,and compared it with sandstone reservoir,showed it has obvious stress sensitivity characters,this seriously effect exploitation of later period,for this kind of reservoir,should inject water at forepart and control production pressure difference, try to keep reservoir pressure close to initial pressure,this will delay decrease of oil output and prolong treating effect of a well.

关 键 词：盐间非砂岩 应力敏感 塑性 弹性 

分 类 号：TE321[石油与天然气工程—油气田开发工程]