基于BP网络分析大牛地气田山西组气井压裂效果影响因素  

Research on Influence Factors of Fracturing Effect of Gas Wells in Shanxi Formation of Daniudi Gas Field Based on BP Network

作　　者：战永平[1] 付春丽 段晓飞[1] 温庆志[1] 李松岩[1] 

机构地区：[1]中国石油大学(华东)石油工程学院,山东青岛266555 [2]中国石油集团海洋工程有限公司,山东青岛266555

出　　处：《长江大学学报（自然科学版）》2017年第19期85-89,共5页Journal of Yangtze University(Natural Science Edition)

基　　金：国家自然科学基金项目(51304229);中国石油大学(华东)精品实验建设项目(JS201402)

摘　　要：影响大牛地气田山西组气井压裂效果的因素繁多,且之间的关系十分复杂。利用高精度拟合的BP网络预测模型,获得了压裂效果影响因素的影响程度如下:泥质体积分数(13.30%)、加砂强度(9.47%)、含气饱和度(8.12%)、砂体厚度(8.12%)。运用BP网络分析结果优选2口井进行压裂增产,增产效果分别为61.09%、59.75%,表明BP网络分析计算结果可为压裂井层的优选、压裂施工设计与优化提供了可靠的依据。There were many factors influencing the effect of fracturing in the gas wells of Daniudi Gasfield,the relationship between them was complex.In this paper,the model with high precision BP network was used to acquire the degree of all the influencing factors,which included that the shale's volume fraction was 13.3%,sanding intensity was 9.47%,gas saturation was 8.12% and sand body thickness was 8.12%.The analysis result of BP network is used for choosing 2well for stimulation fracturing,the effects of production increase are 61.09% and 59.75% respectively,the result indicates that the analysis result of BP network can provide a reliable basis for choosing fracturing well,the design and optimization of fracturing operation.

关 键 词：气井压裂 泥质体积分数 加砂强度 含气饱和度 砂体厚度 BP网络 

分 类 号：TE375[石油与天然气工程—油气田开发工程]