乌鲁木齐–大黄山地区八道湾组煤层气有利区块优选  

Optimal selection of favorable CBM blocks of Badaowan coal seams in Rumqi-Dahuangshan area

作　　者：贾秉义 晋香兰 刘钰辉 王相业 

机构地区：[1]中煤科工集团西安研究院有限公司,陕西西安710077

出　　处：《煤田地质与勘探》2017年第5期54-57,65,共5页Coal Geology & Exploration

基　　金：国家科技重大专项课题(2011ZX05033-002);中煤科工集团西安研究院有限公司科技创新项目(2016XAYQN07)~~

摘　　要：煤层气有利区块优选是煤层气勘探开发的重要研究工作之一。乌鲁木齐–大黄山地区煤层气地质条件复杂,煤层含气量、渗透性等储层条件差异明显。将研究区划分为5个区块,选取构造复杂程度、煤层厚度、含气量、煤层倾角、含气面积、渗透率和含气饱和度等7个指标,运用层次分析法和模糊数学相结合的方法进行区块优选,优选出水磨河–四工河区块、甘河子河–大黄山区块为有利区,四工河–甘河子河区块为较有利区、乌鲁木齐河西区块和乌鲁木齐河–水磨河区块为远景区。Optional selection of favable CBM block is one of the important work in CBM exploration and development.The geologic condition of coalbed methane in Urumqi-Dahuangshan area is very complex.The reservoir conditions such as gas content and permeability of coal seam are obviously different.The study area is divided into 5 blocks.The geological structure complexity,thickness of coal seam,gas content,coal seam dip angle,gas bearing area,permeability and gas saturation are selected by using a combination method of analytic hierarchy process and fuzzy mathematics for block selection.The results show that Shuimo River-Sigong River block and Ganhezi River-Dahuangshan block are favorable areas,Sigong River-Ganhezi River block is the more favorable area,and Urumqi River block on the west and Urumqi River-Shuimo River block are the prospective areas.

关 键 词：煤层气 乌鲁木齐–大黄山地区 储层特征 区块优选 

分 类 号：P618.11[天文地球—矿床学]