基于耦合沉积动力学模拟与多点地质统计学方法的河口湾储层三维建模  

Three-Dimensional Modeling of Estuary Reservoir Based on Coupling Sedimentary Dynamics Simulation and Multipoint Geostatistics Method

作　　者：唐佳凡 唐明明 卢双舫 刘雪萍 张克鑫[3] 何涛华 韩迪 Tang Jiafan;Tang Mingming;Lu Shuangfang;Liu Xueping;Zhang Kexin;He Taohua;Han Di(Key Laboratory of Deep Oil and Gas,China University of Petroleum,Qingdao 266580,China;Shengli Oilfield Branch Binnan Oil Recovery Factory,China Petroleum and Chemical Corporation,Dongying 256606,China;PetroChina Research Institute of Petroleum Exploration and Development,Beijing 100871,China)

机构地区：[1]中国石油大学深层油气重点实验室,山东青岛266580 [2]中国石化胜利油田分公司滨南采油厂,山东东营256606 [3]中国石油勘探开发研究院,北京100871

出　　处：《地球科学》2024年第1期174-188,共15页Earth Science

基　　金：国家自然科学基金项目(Nos.42072163,41402108,41972250);山东省自然科学基金项目(Nos.ZR2019MD006,ZR2014DL003)。

摘　　要：为提高潮控河口湾储层中少井区三维建模精度,以南美Oriente盆地J油田M1层为研究对象,采用沉积动力学模拟与多点统计学建模方法,设定地形坡折高度、潮汐幅度,河口流速、沉积物粒径等参数建立了研究区三维沉积模型.结合M1层储层特征将沉积模拟结果转换为三维训练模板,联合井上测井数据,使用多点地质统计学方法构建沉积动力学模拟约束下的潮控河口湾储层三维精细地质模型.结果表明在沉积动力学建立的三维训练模板约束下,模型中取心井结果与岩心拟合程度高,验证井与井上测井数据相对误差为7.6%,高于序贯高斯模拟方法模拟的精度.在潮控河口湾储层中,通过沉积动力学建立三维训练模板约束储层模型,能够在少井区有效提高模型精度,并得到了验证井交叉验证的结果,这将为潮控河口湾含油储层的勘探与开发提供指导.In order to improve the three-dimensional modeling accuracy of the few well areas in the tidal-controlled estuary bay reservoir,the sedimentary dynamics simulation and multipoint geostatistics modeling method were used on the M1 layer of the J oilfield in the Oriente Basin,South America,to establish the sedimentation model of the study area with the selected terrain slope break height,tidal amplitude,estuary velocity,sediment particle size and other parameters.Considering the reservoir characteristics of the M1 layer,the sedimentation simulation results are converted into a three-dimensional training template.Combined with the three-dimensional training template and logging data,the multipoint geostatistics method was used to construct a fine three-dimensional geological model of the tidal-controlled estuary reservoir under the constraints of sedimentary dynamics simulation.The results show that under the constraints of the three-dimensional training template established by the sedimentary dynamics,the results of the core wells in the model fit well with the cores,and the relative error between the verification wells and the logging data is 7.6%,which are much better than those obtained by the sequential Gaussian simulation.It indicates that,in the tidal-controlled estuary bay reservoir,the establishment of a three-dimensional training template constrained reservoir model through sedimentary dynamics could effectively improve the accuracy of model in areas with a few wells,which are supported by the cross-validation results of verification wells.It will provide guidance for the exploration and development of oil-bearing reservoirs in tidal-controlled estuaries.

关 键 词：河口湾 沉积动力学模拟 多点地质统计学 三维建模 Oriente盆地 石油地质 

分 类 号：P618.13[天文地球—矿床学]