神木气田多层系致密气藏有利区优选  

Favorable area optimization of multi-layered tight gas reservoir in Shenmu gas field

作　　者：冯永玖[1,2] 冯渊[1,2] 黄琼[1,2] 付晓燕[1,2] 王晔[1,2] 焦廷奎[1,2] 

机构地区：[1]中国石油长庆油田分公司勘探开发研究院,陕西西安710021 [2]低渗透油气田勘探开发国家工程实验室

出　　处：《石油地质与工程》2016年第5期36-39,43,共5页Petroleum Geology and Engineering

基　　金：中石油股份公司重大专项"致密气藏开发重大工程技术研究"(2010E-23)资助

摘　　要：神木气田多层系致密气藏以"纵向发育多套含气层系,储层致密、单层产量低"为主要特征,科学、准确地优选有利区是实现这类气藏有效开发的重要保障。综合指数法综合考虑了储层岩性、物性、气层厚度及生产动态等多种因素,归一化处理后,通过与产量的线性相关系数对各影响因素赋予不同权重,得到单层的综合指数。在此基础上,结合各层产气量的贡献率大小,将各单层的综合指数加权求和,最后通过经济评价确定其界限,进而预测有利区。该技术在神木气田产能建设中得到了有效应用。Multi-layered tight gas reservoir in Shenmu gas field is mainly characterized by vertical development of multiple gas-bearing series,tight reservoir,and low single-well production.Scientific and reasonable optimization of favorable area is an important guarantee for the effective development of such a gas reservoir.In this paper,a comprehensive index method is used,which takes into account many factors,such as reservoir lithology,physical property,thickness of gaslayer and production dynamics.After normalization processing,each influencing factor is given different weights by linear correlation coefficient between the factors and gas production,then,the composite index of each layer is obtained.On this basis,combined with the contribution rate of gas production in different layers,the composite indexes of all layers are weighted and summed,and finally,the boundary of composite indexes is determined by economic evaluation,and the favorable area is predicted.This technical method has been effectively applied in productivity construction of Shenmu gas field.

关 键 词：神木气田 多层系致密气藏 有利区优选 综合指数法 

分 类 号：TE37[石油与天然气工程—油气田开发工程]