杜212块兴隆台水平井产能影响因素及治理对策
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摘要
为了提高水平井蒸汽吞吐方式的产能、指导同类型油藏水平井开发效果,利用矿场已投产23口水平井生产数据,通过数理统计方法得出水平井产能变化规律,对影响产能的地质参数、注汽参数和工程参数进行系统性分析。得出结果:水平井周期内和周期间产能变化形态呈不规则"抛物线"状;水平井产能高低受目的层厚度、原油黏度、注汽速度、焖井时间、完井方式等9项因素影响;水平井目的层厚度在15m左右、高压区注汽速度控制在9t/h以内、采用砾石充填筛管完井,水平井产能高。
In order to improve the productivity of steam stimulation in horizontal wells and to guide the development effect of horizontal wells in the same type of reservoir,the production data of 23 horizontal wells have been put into production by the mine field.The law of productivity change in horizontal wells is obtained by mathematical statistics,and the geological parameters,steam injection parameters and engineering parameters are systematically analyzed.The production of horizontal well is influenced by 9 factors,such as the thickness of the target layer,the viscosity of the crude oil,the speed of steam injection,the time of the stew,the completion mode and so on.The thickness of the horizontal well is about 15 m,the velocity of steam injection in the high-pressure area is within 9 t/h,and the gravel is used,then the well completion horizontal well with filling sieve tube has high productivity.
In order to improve the productivity of steam stimulation in horizontal wells and to guide the development effect of horizontal wells in the same type of reservoir,the production data of 23 horizontal wells have been put into production by the mine field.The law of productivity change in horizontal wells is obtained by mathematical statistics,and the geological parameters,steam injection parameters and engineering parameters are systematically analyzed.The production of horizontal well is influenced by 9 factors,such as the thickness of the target layer,the viscosity of the crude oil,the speed of steam injection,the time of the stew,the completion mode and so on.The thickness of the horizontal well is about 15 m,the velocity of steam injection in the high-pressure area is within 9 t/h,and the gravel is used,then the well completion horizontal well with filling sieve tube has high productivity.
引文
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[2]包连纯,杨立强,周大胜,等.杜229块兴隆台油层超稠油蒸汽吞吐图开发规律及对策[C]//刘俊荣.辽河油田开发技术座谈会文集.北京:石油工业出版社,2002:186-190.
[3]张雄君,程林松,李春兰,等.灰色关联分析法在产量递减率影响因素分析中的应用[J].油气地质与采收率,2004,11(6):48-50.
[4]顾文欢,刘月田,刘立成,等.油藏非均质性对水平井蒸汽吞吐效果的影响[J].油气井测试,2012,21(1):33-34.
[5]顾文欢.薄层稠油油藏水平井蒸汽吞吐开发效果研究[J].重庆科技学院(自然科学版),2014,16(6):89-91.
[6]顾文欢,刘月田.边水稠油油藏水平井产能影响因素敏感性分析[J].石油钻探技术,2011,39(1):90-92.
[7]马翠玉,刘月田,王春红,等.浅薄层稠油油藏水平井蒸汽吞吐注汽参数分析[J].科学技术与工程,2013,13(8):2203-2206.
[8]杨立强,周大胜,王飞宇,等.监测资料在超稠油蒸汽吞吐开采中的应用[C]//刘俊荣.辽河油田开发技术座谈会文集.北京:石油工业出版社,2002:199-208.
[9]朱春明,王希玲.水平井不同完井方式下的产能预测研究[J].西部探矿工程,2011(10):92-93.
[10]黄小雷.杜212兴隆台水平井高套坏率影响因素研究[J].中国石油化工标准与质量,2012(6):186.