有缆智能分注技术在华北油田的应用
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摘要
为了提高华北油田非均质砂岩油藏的分注效果及注水合格率,减少验封测调工作量,开发并应用了有缆智能分注技术。该技术可在地面远程实时读取井下智能配水器采集的各层注水流量、温度和压力等数据,并可实时调整各分层配水器水嘴开度大小,轻松完成验封测调工作,在保障分注井注水合格率,减少验封测调工作量的同时,也能够为油藏的分析评价提供大量的数据支撑。介绍了有缆智能分注技术的特点、关键工具和施工辅助装置等,并分析评价了35口有缆智能分注井的应用效果。其对应井组见效率90%,对应油井见效率82. 8%,累计增油16 690余t,节约验封测调费用688万元,降本增效显著。有缆智能分注技术能够有效提高水驱采收率,助力油藏精准开发,具有较高的推广应用价值。
To improve the separate layer water injection effect and water injection pass rate of the heterogeneous sandstone reservoirs in Huabei Oilfield,and reduce the workload of sealing inspection and measurement and adjustment,the wireline intelligent separate layer water injection technology was developed and applied. The technology can be applied to remotely and real-time read the data of water injection flow rate,temperature and pressure acquired by the downhole intelligent water distributor on the ground. It can adjust the opening of water distributor nozzle for each layer in real time,and easily complete the sealing inspection and measurement and adjustment work.The characteristics,key tools and auxiliary devices of the wireline intelligent separate layer water injection technology are introduced. There are 87 wells were implemented by wireline inteelligent separate-layer water injection technology in Huabei Oilfield. The applications in 35 wells are analyzed and evaluated. The corresponding well group has an efficiency of 90%. The corresponding oil well has an efficiency of 82. 8%. The cumulative oil increase is more than 16 690 tons,and the saved cost of sealing inspection and measurement and adjustment is 6. 88 million RMB,presenting great cost saving and benefit increasing performance. The wireline intelligent separate layer water injection technology can effectively improve the water flooding recovery rate,assist the accurate development of reservoir,presenting high promotion and application value.
To improve the separate layer water injection effect and water injection pass rate of the heterogeneous sandstone reservoirs in Huabei Oilfield,and reduce the workload of sealing inspection and measurement and adjustment,the wireline intelligent separate layer water injection technology was developed and applied. The technology can be applied to remotely and real-time read the data of water injection flow rate,temperature and pressure acquired by the downhole intelligent water distributor on the ground. It can adjust the opening of water distributor nozzle for each layer in real time,and easily complete the sealing inspection and measurement and adjustment work.The characteristics,key tools and auxiliary devices of the wireline intelligent separate layer water injection technology are introduced. There are 87 wells were implemented by wireline inteelligent separate-layer water injection technology in Huabei Oilfield. The applications in 35 wells are analyzed and evaluated. The corresponding well group has an efficiency of 90%. The corresponding oil well has an efficiency of 82. 8%. The cumulative oil increase is more than 16 690 tons,and the saved cost of sealing inspection and measurement and adjustment is 6. 88 million RMB,presenting great cost saving and benefit increasing performance. The wireline intelligent separate layer water injection technology can effectively improve the water flooding recovery rate,assist the accurate development of reservoir,presenting high promotion and application value.
引文
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[2]雷创,马永忠,安淑凯,等.无线智能分注技术在牙刷状油藏上的应用[J].石油机械,2016,44(8):54-57.LEI C,MA Y Z,AN S K,et al.Application of wireless intelligent separate layer injection technology in toothbrush-shape reservoir[J].China Petroleum Machinery,2016,44(8):54-57.
[3]夏健,王忠秀,杨春林,等.底部支撑锚定分注管柱的研究与应用[J].石油钻采工艺,2015,37(5):89-91.XIA J,WANG Z X,YANG C L,et al.Research and application of layered water injection pipestring anchored by bottom support[J].Oil Drilling&Production Technology,2015,37(5):89-91.
[4]宋显民,张立民,张宇辉,等.分层定量注水分层测压一体技术[J].石油钻采工艺,2016,38(4):526-530.SONG X M,ZHANG L M,ZHANG Y H,et al.Integrated technology of separate-layer quantitative water flooding and pressure monitoring[J].Oil Drilling&Production Technology,2016,38(4):526-530.
[5]杨满平,赵晓晶,邓爱居,等.多层砂岩油藏分注效果评价方法及应用[J].内蒙古石油化工,2015(20):106-109.YANG M P,ZHAO X J,DENG A J,et al.Evaluation method and application of the effect of separate layer water injection for multi-layer sandstone reservoirs[J].Inner Mongolia Petrochemical Industry,2015(20):106-109.
[6]于泳.预置电缆式分层注水测调工艺研究[D].哈尔滨:哈尔滨理工大学,2016.YU Y.The preset cable stratified water injection testing technology research[D].Harbin:Harbin University of Science and Technology,2016.
[7]刘合,裴晓含,贾德利,等.第四代分层注水技术内涵、应用与展望[J].石油勘探与开发,2017,44(4):608-614.LIU H,PEI X H,JIA D L,et al.Connotation,application and prospect of the fourth-generationseparated layer water injection technology[J].Petroleum Exploration and Development,2017,44(4):608-614.
[8]韦栋,李振彬,魏勇,等.远程测调智能分注技术在吐哈油田的应用[J].新疆石油天然气,2017,13(2):93-96.WEI D,LI Z B,WEI Y,et al.Application of the remote measurement and adjustment intelligent injection technology in Tuha Oilfield.[J].Xinjiang Oil&Gas,2017,13(2):93-96.
[9]张博,刘勇,黎丽丽,等.深层高温高压油藏分层注水测试方法研究与应用[J].钻采工艺,2017,40(6):60-62.ZHANG B,LIU Y,LI L L,et al.Detection method for separate zone water injection in deep HPHT reservoirs[J].Drilling&Production Technology,2017,40(6):60-62.
[10]杨玲智,巨亚锋,申晓莉,等.数字式分层注水流动特性研究与分析[J].石油机械,2014,42(10):52-55.YANG L Z,JU Y F,SHEN X L,et al.Study and analysis of flow characteristics for digital separate-zone water flooding[J].China Petroleum Machinery,2014,42(10):52-55.
[11]张兵强,高有兵,蒲鹤.孔板流量计计量精度数值模拟研究[J].天然气与石油,2014,32(4):70-74.ZHANG B Q,GAO Y B,PU H.Numerical simulation of measuring accuracy of orifice flowmeter[J].Natural Gas and Oil,2014,32(4):70-74.