一种单砂体多因素分类评价方法——以柴达木盆地扎11井区下油砂山组为例  

A Method on Multi-factor Evaluation and Classification of Single Sand Body: A Case from Lower Youshashan Formation in Zha 11 Wellblock, Qaidam Basin

作　　者：李积永 张平[2] 胡光明[3] 蒲勇 王军林[5] 祁青山 吴涛 LI Ji-yong;ZHANG Ping;HU Guang-ming;PU Yong;WANG Jun-lin;QI Qing-shan;WU Tao(Exploration and Development Research Institute of Qinghai Oilfield Company,PetroChina,Dunhuang 736202,China;Northwest Branch of China Petroleum Exploration and Development Research Institute,Lanzhou 730020,China;School of Geosciences,Yangtze University,Wuhan 430100,China;Production and Operation Department of Qinghai Oilfield Company,PetroChina,Dunhuang 736202,China;The No.5 Oil Production of Qinghai Oilfield Company,Dunhuang 736202,China)

机构地区：[1]中国石油青海油田勘探开发研究院,敦煌736202 [2]中国石油勘探开发研究院西北分院,兰州730020 [3]长江大学地球科学学院,武汉430100 [4]中国石油青海油田生产运行处,敦煌736202 [5]青海油田采油五厂,敦煌736202

出　　处：《科学技术与工程》2021年第10期4005-4010,共6页Science Technology and Engineering

基　　金：中国石油重大科技专项(2016E01);国家自然科学基金(41472097)。

摘　　要：传统的砂体分类评价方法受人为主观因素影响较大,评价方法较为复杂,无法满足油田精细开发的需求,探索新的砂体分类评价方法很有必要。以扎11井区下油砂山组湖相砂坝为例,基于SPSS软件,根据皮尔逊相关系数优选出单砂体地质储量、含油面积、地层系数、形状因子等代表性参数,采用多元线性回归确定各参数的权重,然后进行多因素分类评价,建立了单砂体分类模型及标准,实现了对扎11井区下油砂山组单砂体分类评价。该方法为油田开发与调整提供科学依据,并在油田生产中得到较好应用。Traditional evaluation methods on sand bodies are insufficient to meeting the fine developing requirement in oil production because they are often affected by subjective factors, or very complicated to operate. Therefore, it is necessary to explore new method on evaluating and classifying sand body. A new evaluation and classification method was introduced based on SPSS software and lacustrine sand bars in Lower Youshashan Formation in Zha 11 wellblock, Zhahaquan Oilfield, Qaidam Basin. Firstly, representative evaluation parameters, such as geological reserves, oil-bearing area, formation coefficient and shape factor were filtered out by Pearson correlation coefficient in SPSS. Secondly, the weight coefficients of all parameters were confirmed by multiple linear regression analysis in SPSS. Thirdly, multi-factor evaluation of single sand body was carried out, and classification model and standard were set up. The single sand bodies in Lower Youshashan Formation in Zha 11 wellblock were evaluated and classified by this method, which provided technical support for development plan adjustment and was applied well in oil production.

关 键 词：柴达木盆地 扎哈泉油田 单砂体 多因素分类评价 多元线性回归 

分 类 号：TE323[石油与天然气工程—油气田开发工程]