摘要
随着聚合物驱油技术大规模的推广应用,目前很多聚合物驱油区块已进入了后续水驱油阶段,国外许多大石油公司对聚合物的特性研究的较多,但对聚合物驱后测井响应机理鲜有论述;近年来,我国的聚合物驱油技术大规模的推广应用,聚合物驱油技术也走在了世界的前列,但是聚合物驱油后测井响应特征分析及机理研究尚处在发展研究阶段,不同的配注方式其测井的响应特征不同,聚合物水淹后,油层的岩石骨架颗粒基本不变,但孔喉、混合地层水电阻率、含油性都发生了不同程度的变化,导致电性特征变化,从而在测井响应上造成假象,影响了测井解释结果,给科研和生产带来很大的困难,本次以孤岛中一区Ng3层和孤东八区Ng5+6层为例,通过试验证明,胜利油区聚合物溶液主要有两种配注方式:清水配制母液清水注入和清水配制母液污水注入。阿尔奇公式仍然适用于聚合物水淹层解释,在此基础上重新定量准确的建立了新的测井解释模型,大大提高了解释精度,为今后的科研和生产工作奠定了基础。
With oil displacement technique of polymer extensively using and spreading, extensively using and spreading,at the momen,a lot of blocks have entering follow-up displacement of oil by water period,many foreign big oil company have researched polymer's character,but they have researched polymer's log response mechanism a little,in the past few years,the oil displacement technique of polymer has extensively been used and spreadedin our country,and oil displacement technique of polymer is the best in the world.They else researched polymer's injection proration mechanism and character.Different injection proration method is defferent of log response mechanism.When reservoir polymer was submerged by water,physical property of reservoir has been changed,and electric property has been changed too.for example, GuanTao group of the first zone of GuDao oil field was maked up by fresh water and was sewaged,and the eighth zone of GuDong was maked up by fresh water and was sewaged,this time we begined with the datum of geology,well logging,history.theory was guided by developed geologyand developed well logging.Researched the well logging's macro rule of deferent developing period by experimenting and analyzing couplet well.Revealed microscope rule of the well logging feature.Accurately established the well logging's interpretation model by dynamics datas.This kind of method enhanced interpretation accuracy degree.
引文
[1]张贤松,郭兰磊,屈智坚等.孤岛油田中一区聚合物驱先导试验效果评价及驱油特征[J].石油勘探与开发,1996,23(6):54-57
[2]李振泉.孤岛油田中一区特高含水期聚合物驱工业试验[J].石油勘探与开发,2004,31(2):129-131
[3]蔡燕杰,赵金亮,关悦.孤岛油田中一区聚合物驱油井见效特征及影响因素[J].石油勘探与开发,2000,27(6):63-64
[4](美)S.K.拜佳著.聚合物在多孔介质中的流动[M].北京:石油工业出版社,1986
[5]吴文祥,刘洋.聚合物驱后岩心孔隙结构变化特性研究[J].油田化学,2002,19(3):253-256
[6]孙九玲.聚合物聚合物溶液在孔隙模型的流动及渗流机理[D].中国石油大学(北京)图书馆,2000
[7]曾流芳,李林祥,卢云之.聚合物驱水淹层测井响应特征[J].测井技术,2004,28(1):71-74
[8]毕生,彭立.注聚开发对测井曲线的影响[J].石油仪器,2002,16(4):41-43
[9]丛健生,李艳荣,陈德华等.井中聚合物溶液声学参数的实验测量研究[J].测井技术,2002,26(6):506-509
[10]刘兵开,穆津杰.聚合物驱岩石电阻率变化特征的实验研究[J].测井技术,2003,27(增刊):44-46