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1、中图分类号:TE377单位代码:11414学号:2013212079题目柳杨堡气田太2气藏气井出水机理及其开发对策研究学科专业油气田开发工程研究方向油气田开发理论与系统工程硕士生杨大有指导教师代金友(副研究员)二○一六年五月-I-摘要摘要柳杨堡气田紧邻苏里格气田西南侧,构造位于鄂尔多斯盆地天环向斜与伊陕斜坡过渡带,尚处于开发初期,气井试气普遍产水且产水量较大,气水分布规律及其控制因素认识不清,产水气井产出水来源、出水构成、出水特征不明确,缺乏有针对性的开发对策,严重影响了气田开发进程,制约了气田滚动开发进程。本
2、文针对目前存在的问题,首先利用小层对比,地层、砂层展布研究等对气田地质特征进行分析,为后续研究打下基础;其次综合应用地质、测井、生产动态等资料,分析气田生产现状,从纵向及平面上明确了气水分布规律,并分别对源岩、储层条件及构造对气水分布的控制进行了研究;进而开展了对气井出水机理研究,通过地层水离子、矿化度、特征系数等研究明确了地层水特征,并根据日产液情况分成特高产液、高产液、中产液和低产液四类对产水动态进行分析,从而明确了产水来源并对地层水构成问题进行分析,分成凝析水、自由水、可动水三类并进行比例计算。最后针对各
3、种不同类型气井提出堵水、排水采气、解堵、补孔四种开发措施建议,为加快气田开发进程提供依据。关键词:气井出水;气水分布;控制因素;地层水;出水机理-II-ABSTRACTResearchonwaterproductionmechanismanditsdevelopmentmeasuresofLiuyangbaoT2GasReservoirABSTRACTLiuYangBaogasfieldlocatedinthesouthwestsideoftheSuLiGegasfield,itisinearlydevelop
4、mentperiod,waterproductioniswidespreadandlargequantityinwellgastest,gasandwaterdistributionanditscontrollingfactorsarenotunderstandingclear,andsourceoftheproductwater,constitutionoftheproductwater,featureoftheproductwaterisnotclear,lackoftargeteddevelopingco
5、untermeasures,rollingdevelopmentprocessisrestricted.Forthereasonofbeingunclearofthewaterproduction.Firstly,usingsmalllayercontrast,formationspread,sandspreadresearch,wemakeaanalyzeofgeologicalfeaturesofthegasfield.Secondly,basedontheseexistingproblems,usingt
6、hegeophysical,geological,loggingmethods,weclearthegasandwaterdistribution,andrespectivelyresearchongasandwaterdistributioncontrollingfactorswhicharesourcerock,reservoirconditionsandstructure.Thirdly,researchonwaterproductionmechanism,usingformationwaterion,s
7、alinity,characteristiccoefficientmakeclearformationwaterfeature,thenaccordingtodailywaterproduction,wedividedwellsintofourtypestoanalysis.Andweresearchonsourceofwaterandconstituteofformationwater.Finally,itagainstdifferenttypeofgaswells,wemakefourdifferentde
8、velopmentmeasureswhichareplugging,drainagegas,depluggingandperforationsupplementtoacceleratethefielddevelopmentprocess.KeyWords:GasWellWaterProduction;GasandWaterDistribution;ControllingFactors;