Addressing the challenge of difficult gas production recovery following the reservoir plugging in coalbed methane vertical wells,this study investigates the causes of reservoir plugging and the unplug-ging measures.By analyzing the causes of reservoir plugging in coalbed methane vertical wells and their production characteristics,three types of blockage were identified:interlayer interference,discontinuous drainage and inter-well interference.For the reservoir plugging caused by different reasons,it is crucial to select wells and conduct operations based on the specific applicability when performing unplugging using fracturing trucks.At the same time,the injection water volume and the discharge rate should be maximized to improve the effectiveness of the measure and the gas production of individual wells.The fracturing truck unplugging technology put forward by this paper can effectively resolve the issue of reser-voir plugging and improve the gas production of reservoir-plugging wells.
关键词
储层堵塞/压裂车解堵/层间干扰/排采不连续/井间干扰
Key words
Reservoir plugging/unplugging using fracturing truck/inter-layer interference/discontinu-ous drainage/inter-well interference
维普
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