摘要
本文基于柿庄地区煤层气水平井资料,从地质、工程、排采三个方面系统分析水平井低产原因,认为断层沟通含水层、煤体结构破碎,邻井压裂沟通含水层、井眼轨迹上倾、排采速度过快、排采时效低为区内煤层气水平井主要低产原因。通过水平井低产原因分析,为该区煤层气勘探开发提供依据。
Based on the data of CBM horizontal wells in Shizhuang area, the paper analyzes the causes for the low production of horizontal wells from the aspects of geology, engineering and drainage. The main causes includes the fault communication aquifer, the broken coal structure, the fracturing communication aquifer, the borehole trajectory, the fast drainage rate and the low drainage efficiency in the area. Based on the cause analysis of the low production of horizontal wells, the paper provides the reference for exploration and development of CBM in this area.
出处
《中国煤层气》
2017年第2期21-25,39,共6页
China Coalbed Methane
关键词
柿庄地区
煤储层
水平井
低产原因
Shizhuang area
coal reservoir
horizontal well
cause for low production
