摘要
筠连煤层气田构造位于四川盆地南缘,主要发育二叠系乐平组高阶煤层,为海陆交替的潮坪相沉积,煤层具有连续性好,单层厚度薄的特点,在煤层沉积后由于受到燕山及喜山多期构造运动影响,区块内具有构造类型多、局部断裂发育的特点,具有明显的先沉积、后断裂的地质特征。本文通过区域内不同构造类型的生产井的产气情况分析,总结了背斜、向斜及单斜等构造类型下煤层井的产气规律。
Junlian CBM field is located in the southern margin of Sichuan Basin. The mainly developed coal seam is Leping Formation in Permian, with the tidal flat facies sedimentary of sea and land. The coal seam has the characteristics of good continuity and thin layer thickness. Because of the influence of Yan Mountains and Himalayan multi-stage tectonic movement, the coal beds deposits in the area are characterized by many tectonic structural types and partial faults, with obvious geological characteristics of deposition first and fracture later. Based on the analysis of the gas production of CBM wells with different structure types in the Area, this paper summarizes the gas production rules of CBM wells in different tectonic structure types, including anticline, syncline and monocline.
作者
韩永胜
黄小青
尹开贵
梅珏
艾静静
HAN Yongsheng;HUANG Xiaoqing;YIN Kaigui;MEI Jue;AI Jingjing(Zhejiang Oilfield Company,CNPC,Zhejiang 310023)
出处
《中国煤层气》
2020年第4期19-23,共5页
China Coalbed Methane
关键词
筠连煤层气
地质特征
构造类型
产气规律
CBM in Junlian Area
geological characteristics
structural type
gas production rules
