基于单砂体的湖泊三角洲相储层构型模型的建立——以鄂尔多斯盆地S区块为例  

Establishment of Reservoir Architecture Model of Lacustrine Delta Based on Single Sandbody:Taking S Area in Ordos Basin as an Example

作　　者：梁卫卫 党海龙 徐波[3] 张亮 崔鹏兴 LIANG Weiwei;DANG Hailong;XU Bo;ZHANG Liang;CUI Pengxing(Research Institute,Shaanxi Yanchang Petroleum(Group)Co.,Ltd.,Xi'an,Shaanxi 710065,China;Ultra-low Permeability Oil and Gas Exploration and Development Engineering Research Center of Shaanxi Province,Xi'an,Shaanxi 710065,China;College of Petroleum Engineering,Xi'an Shiyou University,Xi'an,Shaanxi 710065,China)

机构地区：[1]陕西延长石油(集团)有限责任公司研究院,陕西西安710065 [2]陕西省特低渗透油气勘探开发工程研究中心,陕西西安710065 [3]西安石油大学石油工程学院,陕西西安710065

出　　处：《西安石油大学学报（自然科学版）》2020年第2期26-34,共9页Journal of Xi’an Shiyou University（Natural Science Edition）

基　　金：陕西省科技统筹创新工程计划项目“提高延长油田主力油层开发效果系统工程关键技术研究”(2012KTZB01-04)。

摘　　要：为精细表征湖泊三角洲沉积体系下的储层内部单砂体结构特征,利用岩心、录井、测井等资料对小层内部发育的单砂体进行识别,同时结合储层构型特征参数阐述不同沉积环境下的储层构型要素类型及特点,建立了基于单砂体的湖泊三角洲相储层构型模型。结果表明:对长82小层单一河道砂体边界有2种垂向及3种侧向识别标志。目的层可进一步划分为水下分流河道、水下分流河道间、前三角洲泥3种四级构型要素;单砂体垂向构型可划分为孤立型及多期河道垂向叠置型2类;单砂体侧向构型可划分为侧向拼接及侧向相隔型2类。储层构型模型可以精细刻画单砂体在三维空间的展布规律,揭示复合砂体的叠置模式,精细描述主力单砂体在平面及垂向上的发育规律。In order to accurately characterize the structural characteristics of the single sand-bodies in the lacustrine delta sedimentary system,the single sand-bodies developed in the small layer are identified by using core,mud logging,logging and other data.Combining with the characteristic parameters of the reservoir configuration,the types and characteristics of the reservoir configuration elements under different sedimentary environments are described,and the reservoir configuration model of the lacustrine delta based on the single sand-body is established.The results show that there are two vertical and three lateral identification marks on the boundary of Chang 82 single channel sand-body.The target layer can be further divided into three fouth-level configuration elements:underwater distributary channel,underwater distributary channel bay and front Delta mud.Vertical configuration of single sand bodies can be divided into two types:isolated type and multi-stage channel vertical superposition type.The lateral configuration of single sand bodies can be divided into two types:lateral splicing and lateral segregation.Reservoir configuration model can delineate the distribution of single sand bodies in three-dimensional space,reveal the overlapping mode of composite sand body,and delicately describe the development law of main single sand body in plane and verticaly.

关 键 词：储层构型模型 湖泊三角洲 单砂体 储层构型 

分 类 号：TE122[石油与天然气工程—油气勘探]