砂砾岩稠油油藏储层伤害机理研究  

STUDY ON RESERVIOR DAMAGE MECHANISM IN THE GLUTERNITE HEAVY OIL RESERVOIR

作　　者：尹祥翔[1] 刘林泉 柯贤贵[3] 张昕 刘杨[3] 

机构地区：[1]长江大学石油工程学院,湖北武汉430100 [2]中石油新疆油田分公司石西油田作业区,新疆克拉玛依834000 [3]中国石油新疆油田公司勘探开发研究院,新疆克拉玛依834000

出　　处：《新疆石油天然气》2013年第4期60-62,7-8,共3页Xinjiang Oil & Gas

基　　金：中国石油天然气集团公司资助项目(2010-228-WK)

摘　　要：新疆油田六东区克下组砂砾岩稠油油藏为中—高孔、中—高渗储层,在开发中频繁的吞吐过程会对储层造成伤害,影响开发效果。为了研究储层的伤害机理,利用储层敏感性评价实验,通过对钻完井液体系对储层伤害影响研究,分析该储层伤害微观机理。确定了造成该储层伤害的主要因素是储层粘土膨胀、钻井液对储层的污染和温度变化等,据此提出了相应的储层保护措施,解决了开采过程中的油层保护问题,并为同类油田提供了可借鉴的油层保护技术和措施。Gluternite heavy oil reservoir of the Kexia set,6th block of Xinjiang oilfield is a medium-high porosity,medium-high permeability oil accumulation,whose development effect will be negatively affected by frequent huff and puff during the exploitation process,causing harm to the reservoir.To probe into the mechanism of reservior contamination,sensitivity evaluation experiments were conducted and through study of the drilling and completion fluid systems' s impact on reservoir contamination,microscopic mechanism of formation damage was analyzed.It is decided that major factors causing formation damage are clay swelling,contamination by drilling fluid and temperature change.And,in response,reservoir protection measures are proposed,which addresses problems of reservoir protection in the mining process and provides a reference in reservoir protection techniques and means for analogous reservoirs.

关 键 词：稠油 敏感性评价 钻完井液体系 储层伤害 油层保护 

分 类 号：TE353.3[石油与天然气工程—油气田开发工程]