用灰色模糊综合评判方法识别聚驱后优势通道
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摘要
大庆油田聚驱区块经过长期开发,在注聚阶段聚合物溶液沿优势通道无效窜流,严重影响聚驱效果。常规模糊数学分析方法识别聚驱后优势通道误差较大。以大庆M区块部分井组为例,综合利用灰色关联度和模糊综合评判法对聚驱后优势通道进行识别,再根据油水井间连通关系、相带以及射孔数据进一步明确优势通道发育方向。通过与示踪剂方法测得结果对比,符合率达到92.3%,识别结果准确可靠。该方法可为区块后续调整及挖潜提供指导。
After a long period of the development,during the polymer injection stage,the polymer solution crossflows ineffectively and invalidly along the prevailing channel for the polymer flooding blocks in Daqing Oilfield,thus the flooded effects are seriously influenced. For the conventional fuzzy mathematics analyzing method,there are rather bigger errors. Taking a part of the well groups in Daqing Block M as an example,integrating the grey association degree and fuzzy comprehensive evaluating method,the dominant channel after the polymer flooding were identified.And moreover according to the connected relationships between the producers and injectors,facies belts and perforation data,the development directions of the prevailing channel were further confirmed. By comparing with the tested results by the tracer method,the coincidence reaches 92. 3%,the identified results are accurate and reliable. In a word,the approach can provide a certain guidance for the block subsequent adjustment and potential tapping.
After a long period of the development,during the polymer injection stage,the polymer solution crossflows ineffectively and invalidly along the prevailing channel for the polymer flooding blocks in Daqing Oilfield,thus the flooded effects are seriously influenced. For the conventional fuzzy mathematics analyzing method,there are rather bigger errors. Taking a part of the well groups in Daqing Block M as an example,integrating the grey association degree and fuzzy comprehensive evaluating method,the dominant channel after the polymer flooding were identified.And moreover according to the connected relationships between the producers and injectors,facies belts and perforation data,the development directions of the prevailing channel were further confirmed. By comparing with the tested results by the tracer method,the coincidence reaches 92. 3%,the identified results are accurate and reliable. In a word,the approach can provide a certain guidance for the block subsequent adjustment and potential tapping.
引文
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[17]高淑玲,张鹤川,闫伟,等.聚驱后井网加密高质量浓度聚合物驱提高采收率试验[J].大庆石油地质与开发,2016,35(3):94-98.
[18]姜维东,张健,徐文江,等.海上油田采出液含聚浓度检测新方法[J].石油科技论坛,2014,33(3):12-15.
[19]周丛丛,张晓芹,崔长玉.聚合物驱合理地层压力控制方法[J].特种油气藏,2015,22(6):111-113.
[20]陈朝辉,尹彦君,王宏申,等.基于蒙特卡洛法的边水油藏聚合物驱段塞优化[J].特种油气藏,2015,22(4):112-114.
[21]马先平,卢祥国,张德富,等.疏水缔合聚合物渗流特性及其影响因素[J].大庆石油地质与开发,2015,34(3):102-107.
[22]何春百,唐恩高,谢晓庆,等.聚合物驱注入能力影响因素数值模拟研究[J].石油科技论坛,2014,33(3):20-23.
[23]赵凤兰,侯吉瑞,李洪生,等.聚合物驱后二次聚驱可行性及质量浓度优化研究[J].中国石油大学学报(自然科学版),2010,34(4):102-106.
[24]刘海波.大庆油区长垣油田聚合物驱后优势渗流通道分布及渗流特征[J].油气地质与采收率,2014,21(5):69-72.
[25]韩培慧,苏伟鹏,林海川,等.聚驱后不同化学驱提高采收率对比评价[J].西安石油大学学报(自然科学版),2011,26(5):44-48.
[2]宋考平,杨二龙,王锦梅,等.聚合物驱提高驱油效率机理及驱油效果分析[J].石油学报,2004,25(3):71-74.
[3]张继红,张静,李钟灵.葡北二断块聚合物溶液参数优化及驱油效果研究[J].当代化工,2015,44(8):1829-1831.
[4]白振强,吴胜和,付志国.大庆油田聚合物驱后微观剩余油分布规律[J].石油学报,2013,34(5):924-931.
[5]李振泉,侯建,曹绪龙,等.储层微观参数对剩余油分布影响的微观模拟研究[J].石油学报,2005,26(6):69-73.
[6]韩培慧,赵群,穆爽书,等.聚合物驱后进一步提高采收率途径的研究[J].大庆石油地质与开发,2006,25(5):81-85.
[7]彭红利,周小平,姚广聚,等.大孔道油藏聚驱后微观剩余油分布规律及提高采收率实验室研究[J].天然气勘探与开发,2005,28(3):62-65.
[8]刘思峰,党耀国,方志耕,等.灰色系统理论及其应用[M].北京:科学出版社,2007:50-61.
[9]曾流芳,赵国景,张子海,等.疏松砂岩油藏大孔道形成机理及判别方法[J].应用基础与工程科学学报,2002,10(3):268-275.
[10]窦之林,曾流芳,张志海,等.大孔道诊断和描述技术研究[J].石油勘探与开发,2001,28(1):268-275.
[11]曾流芳,陈柏平,王学忠.疏松砂岩油藏大孔道定量描述初步研究[J].油气地质与采收率,2002,9(4):53-55.
[12]周志军,王胡振,张小静,等.应用模糊综合评判方法识别水驱优势渗流通道井和层[J].数学的实践与认识,2014,44(21):129-136.
[13]宋考平,杨秋荣,付青春,等.模糊综合评判方法判断低效循环井层[J].钻采工艺,2006,29(4):35-37.
[14]贾云林,王冰,刘月田,等.基于生产实际的大孔道模糊识别模型及评价体系研究[J].石油钻采工艺,2013,35(5):88-91.
[15]刘红岐,李宝英,王万福,等.锦16区块储层及优势通道特征分析[J].西南石油大学学报(自然科学版),2014,36(6):60-68.
[16]赵艳,吴胜和,朱筱敏,等.大孔道识别特征及形成机理研究:以胡12块油田沙三中段为例[J].科技导报,2008,26(11):59-61.
[17]高淑玲,张鹤川,闫伟,等.聚驱后井网加密高质量浓度聚合物驱提高采收率试验[J].大庆石油地质与开发,2016,35(3):94-98.
[18]姜维东,张健,徐文江,等.海上油田采出液含聚浓度检测新方法[J].石油科技论坛,2014,33(3):12-15.
[19]周丛丛,张晓芹,崔长玉.聚合物驱合理地层压力控制方法[J].特种油气藏,2015,22(6):111-113.
[20]陈朝辉,尹彦君,王宏申,等.基于蒙特卡洛法的边水油藏聚合物驱段塞优化[J].特种油气藏,2015,22(4):112-114.
[21]马先平,卢祥国,张德富,等.疏水缔合聚合物渗流特性及其影响因素[J].大庆石油地质与开发,2015,34(3):102-107.
[22]何春百,唐恩高,谢晓庆,等.聚合物驱注入能力影响因素数值模拟研究[J].石油科技论坛,2014,33(3):20-23.
[23]赵凤兰,侯吉瑞,李洪生,等.聚合物驱后二次聚驱可行性及质量浓度优化研究[J].中国石油大学学报(自然科学版),2010,34(4):102-106.
[24]刘海波.大庆油区长垣油田聚合物驱后优势渗流通道分布及渗流特征[J].油气地质与采收率,2014,21(5):69-72.
[25]韩培慧,苏伟鹏,林海川,等.聚驱后不同化学驱提高采收率对比评价[J].西安石油大学学报(自然科学版),2011,26(5):44-48.