煤田地质与勘探2017，Vol.45Issue(6)：54-59,6.DOI:10.3969/j.issn.1001-1986.2017.06.009
渭北区块煤体结构测井评价及其在射孔段优化中的应用
Evaluation of coal structure by logging and its application in optimization of perforation section of coal reservoir in Weibei block
李剑 1刘琦 2熊先钺 2边利恒 2王伟 2杨海星2
作者信息
- 1. 中国矿业大学(北京),北京100083
- 2. 中石油煤层气有限责任公司,北京100028
- 折叠
摘要
Abstract
Coal seam of Weibei block is damaged seriously by multi period tectonic movement and the coal structure is very complicated.Based on core samples and well logging data,this paper analyzed response characteristics of different coal structure and presented logging identification chart of different coal structure of No.5 coal seam in fault zone and non-fault zone.The results show that coal structure of No.5 coal seam tends to be complete from bottom to top.In plane view,the structure of coal in northern area is mainly fractured coal and coal particles.Coal structure of southern area is relatively complete and local is structure coal.According to fracturing and drainage data,and the development of No.5 coal seam roof,this paper makes studies on daily gas production of different roof perforation ratio.When the roof is sandstone or muddy sandstone,gas production of tectonic coal is higher than that of mudstone or sandy mudstone roof.The more crushing the coal structure,the higher the perforation ratio.If the roof of coal is sandstone or muddy sandstone,roof perforated ratio can be higher.关键词
煤体结构/测井评价/压裂特征/射孔段/渭北区块Key words
coal structure/logging evaluation/fracturing characteristic/perforation layer/Weibei block分类
矿业与冶金引用本文复制引用
李剑,刘琦,熊先钺,边利恒,王伟,杨海星..渭北区块煤体结构测井评价及其在射孔段优化中的应用[J].煤田地质与勘探,2017,45(6):54-59,6.
