属性建模中基于变差函数理论的数据分析方法  

Data analysis method based on variogram theory in attribute modeling

作　　者：王大成 刘义坤[1] 付青春[2] 曲国辉[1] 白军辉 陈奋[2] 李文龙[2] WANG Dacheng;LIU Yikun;FU Qingchun;Qü Guohui;BAI Junhui;CHEN Fen;LI Wenlong(Key Laboratory of Enhanced Oil and Gas Recovery of Education Ministry,Northeast Petroleum University,Daqing 163000,China;No.3 Oil Production Plant of PetroChina Daqing Oilfield Co.Ltd.,Daqing 163113,China;PetroChina Daqing Oilfield Co.Ltd.,Daqing 163113,China)

机构地区：[1]东北石油大学提高油气采收率教育部重点实验室,黑龙江大庆163000 [2]大庆油田有限责任公司第三采油厂,黑龙江大庆163113 [3]中国石油大庆油田有限责任公司,黑龙江大庆163113

出　　处：《成都理工大学学报（自然科学版）》2020年第6期681-690,共10页Journal of Chengdu University of Technology: Science & Technology Edition

基　　金：国家油气重大专项(2016ZX05010-002-004);黑龙江省自然科学基金重点项目(ZD2018010)。

摘　　要：探讨数据分析过程中参数设定顺序和调整范围。根据变差函数理论设计了变程对属性计算影响实验,实验发现随着变程值增大属性体计算值逐渐变小,得出了变程值对属性计算结果影响较大的结论。依据楔形搜索域点对搜索策略,明确滞后距和搜索半径是“假拟合”和“无效搜索”现象的主要原因。重新厘定8个参数设定顺序,明确6个参数调整范围,设计了新的数据分析技术流程。通过抽稀验证表明该方法能较大幅度提高模型精度,进一步对比不同类型沉积微相成果发现能够对各类储层物性实现较好模拟。In this paper,the parameter setting sequence and adjustment range in the process of data analysis are discussed.According to the theory of variational function,the experiment of the influence range on the calculation of attributes is designed.It is found that the value of the attribute body becomes smaller as the value of range increases,and a conclusion is drawn that the value of range has a great influence on the result of attribute calculation.Based on the point pair search strategy of wedge search domain,it is recognized that the lag distance and search radius are the main reasons for the phenomenon of“false fitting”and“invalid search”.Combined with the aforementioned results,the setting sequence of 8 parameters was redefined,the adjustment range of 6 parameters was defined,and a new technical process of data analysis was designed.The simulation results show that this method can greatly improve the accuracy of the model,and it can be used to simulate the physical properties of various reservoirs by comparing the results of different types of sedimentary microfacies.

关 键 词：数据分析 假拟合 无效搜索 变差函数 技术流程 

分 类 号：TE319.1[石油与天然气工程—油气田开发工程]