CO2增能压裂在煤层气垂直井中的应用
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2018-08-11 00:44:18
文档简介:
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
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