无线智能分层注采技术研究
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摘要
针对当前油田分层注采技术灵活性差,效率低,调配需要现场施工及工作量大的问题,在室内试验的基础上,研究了一种基于智能测控装置和压力/流量脉冲载波传输的无线智能分层注采技术。试验结果表明:该技术能够高效、灵活地实现对井下分层流量的实时控制,免去了现场井下投捞测试和调配的工作量;通过集成化的井下智能配水器与智能配产器等核心工具,可灵活可靠地对井下流量和压力等生产参数进行测试与控制;利用井口测控装置能够对井筒连续相流体施加压力或流量扰动,产生附带地址和动作信息的可执行脉冲指令,实现井口与井下的无线信号传输;该技术既能实时监测油水井产层流量、压力等生产动态,又可以在线控制分层注采液量,从而有效减少层间干扰、强化层间均衡动用。研究结果可为转流线、调流场以及注采耦合等水驱开发调整模式提供一种便捷的工程技术手段。
The poor flexibility and low efficiency of the current separate layer injection and production technology results in heavy workload. Through the indoor test,a kind of wireless intelligent separate layer injection and production technology based on intelligent measurement and control device and pressure/flow pulse transmission is studied. The test results show that the integrated downhole intelligent water distributor and intelligent production control device can flexibly and reliably measure and control the downhole production parameters such as flow and pressure. The wellhead measurement and control device can apply pressure or flow disturbance to the continuous phase fluid in the wellbore to produce executable pulse command with address and action information,thus realizing wireless signal transmission between the wellhead and the downhole tool. The intelligent separate layer injection and prodution technology can allow not only real-time monitoring the production state of oil and water wells such as flow rate and pressure,but also controlling the amount of injection and production,thereby effectively reducing interlayer interference and enhancing interlayer balance. The developed technology can provide a convenient engineering measure for water flooding development adjustment such as diverting flow line,flow field regulation and injectionproduction coupling.
The poor flexibility and low efficiency of the current separate layer injection and production technology results in heavy workload. Through the indoor test,a kind of wireless intelligent separate layer injection and production technology based on intelligent measurement and control device and pressure/flow pulse transmission is studied. The test results show that the integrated downhole intelligent water distributor and intelligent production control device can flexibly and reliably measure and control the downhole production parameters such as flow and pressure. The wellhead measurement and control device can apply pressure or flow disturbance to the continuous phase fluid in the wellbore to produce executable pulse command with address and action information,thus realizing wireless signal transmission between the wellhead and the downhole tool. The intelligent separate layer injection and prodution technology can allow not only real-time monitoring the production state of oil and water wells such as flow rate and pressure,but also controlling the amount of injection and production,thereby effectively reducing interlayer interference and enhancing interlayer balance. The developed technology can provide a convenient engineering measure for water flooding development adjustment such as diverting flow line,flow field regulation and injectionproduction coupling.
引文
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[13]GLANDT C A.Reservoir management employing smart wells:a review[J].SPE Drilling&Completion,2005,20(4):281-288.
[14]MIKKELSEN L L,BO N J.Towards intelligent optimization of offshore oil and gas production using multiagent software systems[R].SPE 153815,2012.
[15]WANG F,XU D,YU L,et al.The full-automatic real-time display,testing and adjustable system in separated layers water injection well[R].SPE 149851,2012.
[16]BROUWER D R,JANSEN J D.Dynamic optimization of waterflooding with smart wells using optimal control theory[J].SPE Journal,2002,9(4):391-402.
[2]邴绍献,吴作舟,侯春华,等.胜利油田特高含水期改善水驱开发技术[C]∥第二届全国油气田开发技术大会论文集.北海:石油工业出版社,2007.BING S S,WU Z Z,HOU C H,et al.Water flooding technology during ultra-high water cut stage in Shengli Oilfield[C]∥Proceedings of the Second National Oil and Gas Development Technology Conference.Beihai:Petroleum Industry Press,2007.
[3]朱丽红,杜庆龙,姜雪岩,等.陆相多层砂岩油藏特高含水期三大矛盾特征及对策[J].石油学报,2015,36(2):210-216.ZHU L H,DU Q L,JIANG X Y,et al.Characteristics and strategies of three major contradictions for continental facies multrlayered sandstone reservoir at ultrahigh water cut stage[J].Acta Petrolei Sinica,2015,36(2):210-216.
[4]崔传智,徐建鹏,王端平,等.特高含水阶段新型水驱特征曲线[J].石油学报,2015,36(10):1267-1271.CUI C Z,XU J P,WANG D P,et al.A new water flooding characteristic curve at ultra-high water cut stage[J].Acta Petrolei Sinica,2015,36(10):1267-1271.
[5]项燚伟.萨尔图油田北二西块分注分采提高采收率数值模拟研究[D].大庆:大庆石油学院,2010.XIANG Y W.Numericai simuiation study of separate zone injectian and production for EOR in Beierxi block of Saertu Oilfield[D].Daqing:Daqing Petroleum Institute,2010.
[6]李常友.胜利油田测调一体化分层注水工艺技术新进展[J].石油机械,2015,43(6):66-70.LI C Y.New development of measurement and regulation integrated separate layer water injection technology in Shengli Oilfield[J].China Petroleum Machinery,2015,43(6):66-70.
[7]刘红兰.分层注水井测调一体化新技术[J].石油钻探技术,2018,46(1):83-89.LIU H L.A new integrated measuring and adjusting technology of separate layer water injection well[J].Petroleum Drilling Techniques,2018,46(1):83-89.
[8]张绍东,古光明,李蓉,等.不动管柱换层采油工艺技术与应用[J].石油机械,2002,30(4):36-37.ZHANG S D,GU G M,LI R,et al.Application of technology for layering production without pulling strings[J].China Petroleum Machinery,2002,30(4):36-37.
[9]崔海平,李金发,宋斗贵,等.井下不动管柱换层采油工艺技术[J].油气地质与采收率,2004,11(4):65-67.CUI Y H,LI J F,SONG D G,et al.Oil production technology of zone replacement by downhole immobile stringy[J].Petroleum Geology and Recovery Efficiency,2004,11(4):65-67.
[10]葛乐清.多油层分层合采抽油泵的设计研究[D].哈尔滨:哈尔滨工业大学,2006.GE L Q.Design and research of multi layer combined production pump[D].Harbin:Harbin Institute of Technology,2006.
[11]刘合,肖国华,孙福超,等.新型大斜度井同心分层注水技术[J].石油勘探与开发,2015,42(4):512-517.LIU H,XIAO G H,SUN F C,et al.A new concentric zonal water injection technique for highly-deviated wells[J].Petroleum Exploration and Development,2015,42(4):512-517.
[12]王瑞,袁士宝,王建,等.复杂断块油藏注采耦合技术提高采收率机理[J].大庆石油地质与开发,2018,46(6):1-5.WANG R,YUAN S B,WANG J,et al.Mechanism of the injection-producton coupling technique for complex fault-block oil reservoirs[J].Petroleum Geology and Oilfield Development in Daqing,2018,46(6):1-5.
[13]GLANDT C A.Reservoir management employing smart wells:a review[J].SPE Drilling&Completion,2005,20(4):281-288.
[14]MIKKELSEN L L,BO N J.Towards intelligent optimization of offshore oil and gas production using multiagent software systems[R].SPE 153815,2012.
[15]WANG F,XU D,YU L,et al.The full-automatic real-time display,testing and adjustable system in separated layers water injection well[R].SPE 149851,2012.
[16]BROUWER D R,JANSEN J D.Dynamic optimization of waterflooding with smart wells using optimal control theory[J].SPE Journal,2002,9(4):391-402.