煤层气钻井过程中的储层伤害及保护技术

Research on Reservoir Damage and Protection Technology During Coalbed Methane Drilling

在煤层气钻井过程中,由于地质因素或者操作不当,会对煤储层造成一定的伤害,严重影响煤层气开采及煤炭资源开发。结合煤层气成藏原理和储层特点,给出钻井过程中对煤储层的伤害形式,介绍煤储层保护技术,为类似情况提供一定的借鉴。

In the process of coalbed methane drilling,due to geological factors or improper operation,it will cause certain damage to coal reservoirs,which will seriously affect the mining of coalbed methane and the development of coal resources.Combining the theory of coalbed methane accumulation and the characteristics of the reservoir,the damage to the coal reservoir during the drilling process is given,and the coal reservoir protection technology is introduced to provide a certain reference for similar situations.