扎尔则油田注气混相驱数值模拟研究  

Numerical simulation study on miscible gas flooding in Zarzaitine Oilfield

作　　者：陈晓军[1] 成伟[2] 史华[3] 

机构地区：[1]中国石油大学(北京)石油工程学院,北京102249 [2]中国石化集团国际石油勘探开发有限公司,北京100029 [3]中国石化股份胜利油田分公司地质科学研究院,山东东营257015

出　　处：《西北大学学报（自然科学版）》2013年第6期927-931,共5页Journal of Northwest University（Natural Science Edition）

基　　金：国家973基金资助项目(2006CB705804);国家重点实验室基金资助项目(PLN9925)

摘　　要：在注烃气混相驱矿场先导试验的基础上,通过选择合适的试验区域,完善注采井网,优化混相驱注入参数,设计不同条件下的混相注入方案,利用数值模拟技术进行方案预测优化,以探索油田开发后期高采出程度、高含水条件下,利用注烃气混相驱技术提高原油采收率的技术可行性。研究后认为,在注入溶剂段塞总量分别为0.3,0.2,0.1倍孔隙体积条件下,相应提高采出程度10.6%,9.0%,7.6%;在油层厚度较大或者多层合注合采的情况下,油层纵向上的混相效果是不均匀的;在井网完善的条件下,油藏平面上各生产井混相效果差异不大。注气混相驱在扎尔则油田是一项具有广阔应用前景的提高采收率的技术,该研究成果对海内外类似难动用储量的开采也提供了有益的借鉴。On the basis of miscible gas flooding tion well pattern, optimize injection parameters pilot test, to select appropriate test area, and design different miscible gas flooding perfect production-injec- injection plans to forecast and optimize the gas flooding process by numerical stimulation technology. To research EOR feasibility of miscible gas flooding in late development stage with high recovery percent and high watercut. The study shows that in the case of 0.3, 0.2 and 0.1 PV injecting volume of solvent, enhanced oil recovery of percent is 10.6%, 9.0%, 7. 6%, respectively; in the case of large reservoir thickness or commingling production and injection, vertical misci- ble effect is inhomogeneous; in the case of perfecting well pattern, there isn＇t any difference of miscible effect in reservoir plane. The research results show the broad application prospects of hydrocarbon miscible gas flooding in Zarzaitine Oilfield, and also offers useful reference to the development of the other difficult-to-produce reserves all over the world.

关 键 词：扎尔则油田 开发后期 注气混相驱 数值模拟研究 

分 类 号：TE122.1[石油与天然气工程—油气勘探]