三维地质建模在页岩气甜点定量表征中的应用——以扬子地区昭通页岩气示范区为例  

Application of 3D geological modeling in quantitative characterization of shale gas sweet spots:Case study of Zhaotong national demonstration area of Yangtze region

作　　者：张磊夫 董大忠[1,2,3] 孙莎莎 于荣泽[1,2] 李林 林士尧[5] 欧阳小虎 施振生 武瑾 昌燕 马超[1,2] 李宁 Zhang Lei-fu;Dong Da-zhong;Sun Sha-sha;Yu Rong-ze;Li Lin;Lin Shi-yao;Ouyang Xiao-hu;Shi Zhen-sheng;Wu Jin;Chang Yan;Ma Chao;Li Ning(CNPC Research Institute of Petroleum Exploration and Development,Beijing100083,China;National Energy Shale Gas R&D(Experiment)Center,Langfang065007,China;CNPC Key Laboratory of Unconventional Oil and Gas,Langfang065007,China;CNPC Zhejiang Oilfield,Hangzhou310023,China;CNPC International Exploration and Production Corporation,Beijing100086,ChinaChina Petroleum Pipeline Engineering Co.Ltd.,Langfang065000,China)

机构地区：[1]中国石油勘探开发研究院,北京100083 [2]国家能源页岩气研发(实验)中心,河北廊坊065007 [3]中国石油天然气集团公司非常规油气重点实验室,河北廊坊065007 [4]中国石油浙江油田公司,浙江杭州310023 [5]中国石油国际勘探开发有限公司,北京100086 [6]中国石油管道局工程有限公司,河北廊坊065000

出　　处：《天然气地球科学》2019年第9期1332-1340,共9页Natural Gas Geoscience

基　　金：国家科技重大专项“页岩储层定量表征及评价”(编号:2017ZX05035002-002)资助

摘　　要：基于地震解释、钻井资料、测井数据、先验地质知识,以扬子地区昭通国家级页岩气示范区为研究对象,应用Petrel三维建模软件,建立了涵盖TOC、孔隙度、含气饱和度、含气量、脆性指数等多种属性的三维储层地质模型。采用Petrel自带模块计算游离气资源量,按照体积法运算公式计算吸附气资源量,计算页岩气资源量超过1 000×10~8m^3,与EUR预测较符合。应用中石油甜点评价标准对模型中所有网格进行筛选,实现对研究区甜点层的定量评价,以及甜点体的三维定量刻画,为气藏开发方案提供指导,是地质—工程一体化的重中之重。Based on seismic interpretation,drilling data,well logging data,and prior geological knowledge,taking the Zhaotong shale gas National Demonstration Area as a research target,using the three-dimensional modeling software PetrelTM,three-dimensional reservoir models covering the TOC,porosity,gas saturation,gas content,brittleness index and other properties have been built.Free gas resources are calculated using PetrelTM built-in modules.Adsorption gas resources are calculated according to the volumetric method.The overall shale gas resources are estimated to be more than 1 000×10~8 m^3,in good accordance with the EUR forecasts.The CNPC sweet spot evaluation standard is applied to filter all the grids in the 3 D property models,so that sweet spot layers in the research area can be quantitatively evaluated and sweet spot body can be quantitatively characterized in 3 D.Such results can provide guidance for shale gas reservoir development plan,which serve as the priority among all priorities for the geology-engineering integration practice.

关 键 词：昭通页岩气示范区 三维地质建模 页岩气甜点 定量表征 

分 类 号：P618.13[天文地球—矿床学]