基于模拟退火的曲流河复合点坝建模新方法  

A new modeling method of meandering river complex point bars based on simulated annealing

作　　者：郑昕 束青林[1] 苏朝光[2] 吴胜和[3] 蒋小伟 田媛 岳大力[3] ZHENG Xin;SHU Qinglin;SU Chaoguang;WU Shenghe;JIANG Xiaowei;TIAN Yuan;YUE Dali(Hydrocarbon Development and Management Centre,Shengli Oilfield Company,SINOPEC,Dongying 257001,China;Geophysical Research Institute,Shengli Oilfield Company,SINOPEC,Dongying 257022,China;College of Geosciences,China University of Petroleum,Beijing 100083,China)

机构地区：[1]中国石化胜利油田分公司油气开发管理中心,山东东营257000 [2]中国石化胜利油田分公司物探研究院,山东东营257022 [3]中国石油大学(北京)地球科学学院,北京100083

出　　处：《断块油气田》2023年第1期114-119,135,共7页Fault-Block Oil & Gas Field

基　　金：国家科技重大专项“胜利油田特高含水期提高采收率技术(二期)”(2016ZX05011)。

摘　　要：文中提出了一种基于模拟退火的曲流河复合点坝建模新方法。与基于目标和基于沉积过程的方法相比,新方法更加灵活,易于条件化;与两点统计建模和多点统计建模相比,新方法可更好地再现复杂的河道特征;与基于构型精细解剖的确定性建模方法相比,新方法适用于井网稀疏的情况。新方法通过逐步模拟河道中线、活动河道和串珠状点坝,从串珠状点坝随机抽取单一点坝建立了8种单一点坝模型,将这8种单一点坝模型作为随机模拟时单一点坝生成、删除和移动操作对象,采用模拟退火的策略较好地再现了复合点坝三维分布。在真实现代沉积和中国东部某油田实际工区中应用新方法,证明了新方法的合理性和对真实油田数据的适用性。A new method for modeling a meandering river complex point bars based on simulated annealing is proposed in this paper.Compared with target-based and deposition process-based methods,the new method is more flexible and easier to condition.Compared with two-point statistical modeling and multi-point statistical modeling,the new method can better reproduce complex channel characteristics.Compared with the deterministic modeling method based on fine architecture anatomy,the new method is suitable for the sparse well situation.The new method establishes eight types of single point bar models by randomly selecting single point bar from the bead-like point bars by gradually simulating the centerline of the river channel,the active channel,and the bead-like point bars,and uses these eight types of single point bar models as operation objects of single point bar generating,deleting and moving in stochastic simulation.The three-dimensional distribution of the complex point bars is better reproduced by the strategy of simulated annealing.The application of the new method to real modern deposits and actual work area of an oil field in eastern China demonstrates the rationality of the new method and its applicability to real oil field data.

关 键 词：模拟退火 曲流河 复合点坝 建模 构型 随机模拟 

分 类 号：TE121.3[石油与天然气工程—油气勘探] P618.13[天文地球—矿床学]