Comparative experimental study on filtration loss effect of primary structure coal rock fracturing fluid in Qinnan and Edong
Liu Jianhua1, Wang Shengwei2, Zhang Xiaofei3, Zhang Yechang4
1. Shanxi Institute of Engineering Technology, Yangquan 045000, China; 2. School of Resources, China University of Geosciences ( Wuhan ), Wuhan 430074, China; 3. Gujiao Project Department, China Coalbed Methane Co., Ltd., Taiyuan 030200, China; 4. Beijing Construction Digital Technology Co., Ltd., Beijing 100048， China
Abstract： In this paper, a large number of primary structure coal and rock in Qinnan and Edong coal mines are selected. Fracturing filtration experiments are carried out by improved filter equipment, real-time observation of filtration phenomenon, measurement of filtration related parameters, qualitative and quantitative analysis of filtration effect. The experimental results show that under the same pumping pressure, the filtration performance of coal and rock varies greatly, and the filtration performance of Qinnan coal and rock is greater than that of Edong coal and rock. By comparing the fracture development characteristics of coal and rock, it is found that the filtration of coal and rock is largely affected by the fracture development characteristics of coal and rock joints. As a fractured reservoir, coal reservoir must take reasonable and effective measures to reduce filtration performance in fractured zone, which provides a theoretical basis for further exploration and development of coalbed methane.
刘建华1，王生维2，张晓飞3，张业畅4. 沁南与鄂东原生结构煤岩压裂液滤失效应对比实验研究[J]. 煤炭与化工, 2022, 45(7): 119-121.
Liu Jianhua1, Wang Shengwei2, Zhang Xiaofei3, Zhang Yechang4. Comparative experimental study on filtration loss effect of primary structure coal rock fracturing fluid in Qinnan and Edong. CCI, 2022, 45(7): 119-121.
