文档介绍：高丰度煤层气富集区煤层气评价指标优选——以沁水盆地南部为例晋香兰李建武杨志远张培河何金菊中煤科工集团西安研究院,陕西西安710054 摘要:找寻可供煤层气开发的区块,并可获得较高产气并,是评价高丰度煤层气富集区的最终目的。通过煤层气的地质条件、储层条件、资源条件及煤层气井产能情况,探讨影响煤层气井产能的各种因素,最终确定高丰度煤层气富集区的评价指标的界限值为:富集区多处于向斜构造及水文地质条件较简单的地下水滞流区;煤层埋藏较浅;渗透率>1mD;含气饱和度>70%;储层压力梯度>;煤层气单井日产气量>2000m3/d。关键词:高丰度煤层气;富集区;评价指标;沁水盆地 A TheoptimizationofthecoalbedmethaneassessmentIndexesinthehighabundance coalbedmethaneenrichmentareainthecaseofthesouthernpartoftheQinshui basin,China JINXianglan LIJianwuYANGZhiyuan ZHANGPeihe HEJinju Xi'anResearchInstitute,ChinaCoalTechnologyandEngineeringGroupCorp,Xi'an710054,China Abstract:Toseektheblocksforthecoalbedmethane(CBM)developmentandacquirethegaswellswiththe CBMgeologicalconditions,reservoirconditionsandCBMwellproductivitysituations,toapproachvariousfactors impactingtheCBMwellproductivity,andfinally,thelimitvaluesoftheassessmentindexesonthehighabundance CBMenrichmentareaare:the