砂岩油田注采结构优化调整方法  

Optimizing and adjusting of injection and production structure in sandstone oilfield

作　　者：高海龙 柳朝阳[2] 王倩[2] 杨永强[3] GAO Hai-long;LIU Chao-yang;WANG Qian;YANG Yong-qiang(Research Institute of Shaanxi Yanchang Petroleum(Group)Co.,Ltd.,Xi an 710075,China;Exploration and Development Technology Research Center of Yanchang Oilfield Co.,Ltd.,Yan an 716000,Shaanxi,China;State Key Laboratory of Geological Processes and Mineral Resources,China University of Geosciences,Beijing 100083,China)

机构地区：[1]陕西延长石油(集团)有限责任公司研究院,西安710075 [2]延长油田股份有限公司勘探开发技术研究中心,陕西延安716000 [3]中国地质大学成矿作用与成矿过程国家重点实验室,北京100083

出　　处：《世界地质》2020年第1期90-97,共8页World Geology

基　　金：国家自然科学基金(40172076、41072070)。

摘　　要：砂岩油田开发过程中注采结构优化调整是一项非常复杂的工程,采液速度和采油速度是其中两个重要的指标,依照其变化可以把油田不同开采阶段划分为3种模式:提液稳产模式、稳液降产模式和降液控水模式。注采结构直接关系到油田的开发效果,在油气田不同的开发阶段,注采结构中存在的问题也是不同的。为了达到注采结构优化调整目的,针对沉积微相、沉积构造和剩余油分布进行精细的研究,根据构造特点调整注采结构,根据微构造、沉积微相特征进行注采井网的适应性调整,从而提高注水结构面横纵向调整和注水井整体调整以及油田分区、油井分类及单井结构调整等注采结构优化调整的切实效果。The optimizing and adjusting of injection and production structure is a very complex project in sandstone oilfield development.The rates of fluid production and oil production are two important indicators for it,which can divide the development stages of oilfield into three modes,namely stable production by liquid extraction,reduction production by liquid stable and water control by liquid reduction.The injection and production structure directly affects the development efficiency of the oilfield,and in different development stages of oil fields,the problems in the injection and production structure are different.In order to optimize and adjust the injection and production structure,it is necessary to conduct detailed research on sedimentary microfacies,structure and remaining oil distribution,and adjust the injection and production structure according to the structural characteristics.Injection production well pattern is then adaptively adjusted according to the microstructure and sedimentary microfacies,so as to improve the effects of optimizing and adjusting of injection and production structure,which includes horizontal and vertical adjustment of water injection structure,the overall adjustment of water injection well,oil field division,oil well classification and single well structure adjustment.

关 键 词：砂岩油田 注采结构 优化调整 微构造 沉积微相 

分 类 号：P618.13[天文地球—矿床学] TE35[天文地球—地质学]