A油田长6油藏控制因素分析  

CONTROL FACTORS OF CHANG 6 RESERVOIR IN A OILFIELD

作　　者：陈雷[1,2] 朱玉双[1,2] 何永宏[3] 李书恒[3] 王杰[3] 

机构地区：[1]大陆动力学国家重点实验室.西北大学 [2]西北大学地质学系 [3]长庆油田公司超低渗透油藏研究中心

出　　处：《天然气勘探与开发》2010年第3期36-40,共5页Natural Gas Exploration and Development

基　　金：国家重点基础研究发展计划(973)项目(2003CB214603)

摘　　要：分析A油田长6油藏控制因素,为进一步寻找油藏提供依据。在对钻井、录井、分析测试和试油等资料综合分析的基础上,讨论了A油田长6油藏的控制因素。研究发现,A油田长6油藏的形成受有利的沉积相带、物性和岩性圈闭闭合高度三种因素控制。一定厚度的砂体,具备一定的物性条件是形成油藏的必要条件,但高孔、高渗或砂体厚度却不是形成油藏的充分条件。只有储集层的物性、砂体厚度和岩性圈闭的闭合高度三者达到合理的配置,才是形成油藏的充分条件,且三个条件之间可以相互补偿。岩性圈闭的闭合高度受东高西低的大的构造背景、小型的鼻状构造、隔层的发育状况、河道的宽度和河道沉积砂体厚度的影响。In this study,a basis for further seeking oil reservoirs is provided based on the comprehensive analysis of drilling,logging,analyzing testing and oil testing data;moreover,the control factors of Chang 6 reservoir in A Oilfield are discussed.Study shows that Chang 6 is controlled by three factors:the favorable sedimentary facies belt,physical property and closure height of lithologic trap.Sand body with a certain thickness and certain physical-property conditions are the necessary conditions of forming an oil reservoir.But high porosity,high permeability and sand body thickness are not the sufficient conditions.Only if physical property,sand body thickness and closure height are suitably configured,and featured by co-compensation,can oil reservoir form.The closure height is influenced by tectonic setting of high east and low west,small-scale nose structure,development status of interlayer,river width and sedimentary-body thickness.

关 键 词：岩性油气藏 油藏控制因素 岩性圈闭闭合高度 

分 类 号：P618.13[天文地球—矿床学]