CO2增能压裂在煤层气垂直井中的应用

煤炭工程2011年第2期CO2增能压裂在煤层气垂直井中的应用焦中华，倪小明，贾炳(1．中原石油勘探局井下特种作业处，河南濮阳457161；2．河南理丁大学能源科学与工程学院，河南焦作454000)摘要：根据伴注CO增能压裂特点，系统分析了CO增能压裂增产杌理，结合芦岭矿实际情况，设计了该研究区CO：增能压裂煤储层工艺技术。芦岭矿井伴注CO：增能压裂和常规活性水压裂的产气对比表明：CO，增能压裂从一定程度上可增加煤层气垂直井的产气量，具有较好地应用前景。关键词：CO增能；压裂；煤层气；垂直井；吸附中图分类号：P618文献标识码：B文章编号：1671—0959(2011)02．()048-()3ApplicationofcarbondioxideenergyaccumulationfracturingtocoalbendmethaneverticalwellJIAOZhong—hua，NIXiao—ming，JUABing(1．UndergroundSpeeiMOperationDivision，ZhongyuanPetroleumExplorationBureau，Puyang457001，China；2．SchoolofEnergyScienceandEngineering，HenanPolytechnicUniversity，Jiaozuo454000，China)Abstract：AccordingtotheCO—injectioncarbondioxidefoamfracturingfeatures，thepapersystematicallyanalyzedthemechanismsofthecarbondioxidefoamfracturingandthegasproductionincreasing．IncombinationwiththeactualconditionsofLulingMine，thecarbondioxidefoamseamfracturingtechniqueandtechnologyofthestudyzonewasdesigned．ThegasproductioncomparisonbetweentheCO—injectioncarbondioxidefoamfracturingandthenormalactivewaterfr