超深双台阶水平井分注及酸化一体化管柱研究
|
摘要
常规偏心分层注水会导致区块欠注严重,难以满足超深双台阶水平井分层注水及不动管柱分层注水分层酸化要求。为此,研制了超深双台阶水平井分注及酸化一体化管柱和配套工具。管柱主要由封隔器和注水酸化一体化配水器等组成。测调过程中测调仪器与管柱中的配水器采用同心对接,投捞成功率高,通过与特制酸化芯子配合可实现不动管柱分层酸化。利用WELLCAT软件模拟注水、酸化和停注时各封隔器的受力、管柱伸缩长度以及管柱整体强度。现场试验结果表明:超深双台阶水平井分注及酸化一体化管柱及配套工具设计合理,施工成功率100%,层段之间注水合格率100%,能够满足超深双台阶水平井的分层注水及酸化要求。研究结果可为封隔器及伸缩管的选择提供理论依据。
Conventional eccentric separate layer water injection may lead to serious insufficient injection in the block,which is difficult to meet the requirements of separate-layer injection/acidification using fixed string in ultradeep double-step horizontal wells. To address the problem,the separate layer water injection and acidification integrated string and supporting tools for ultra-deep double-step horizontal well have been developed. The string is mainly composed of a packer and an integrated water-injection and acidification water distributor. During the process of measurement and adjustment,the measurement and adjustment device and the water distribution device in the string is concentrically connected to allow a high success rate of running and retrieving. By cooperating with a special acidification core,the separate layer acidification could be achieved without additional string running.WELLCAT software is used to simulate the force of each packer,the length of the string expansion and the overall strength of the string under water injection,acidification and stop injection,providing a theoretical basis for the selection of packers and extension tubes. The field test results show that the separate layer water injection and acidification integrated string and supporting tools are designed reasonably,with the operation success rate of 100% and the water injection qualification rate of 100%,which can meet the requirements of separate layer water injection and acidification in double step horizontal well.
Conventional eccentric separate layer water injection may lead to serious insufficient injection in the block,which is difficult to meet the requirements of separate-layer injection/acidification using fixed string in ultradeep double-step horizontal wells. To address the problem,the separate layer water injection and acidification integrated string and supporting tools for ultra-deep double-step horizontal well have been developed. The string is mainly composed of a packer and an integrated water-injection and acidification water distributor. During the process of measurement and adjustment,the measurement and adjustment device and the water distribution device in the string is concentrically connected to allow a high success rate of running and retrieving. By cooperating with a special acidification core,the separate layer acidification could be achieved without additional string running.WELLCAT software is used to simulate the force of each packer,the length of the string expansion and the overall strength of the string under water injection,acidification and stop injection,providing a theoretical basis for the selection of packers and extension tubes. The field test results show that the separate layer water injection and acidification integrated string and supporting tools are designed reasonably,with the operation success rate of 100% and the water injection qualification rate of 100%,which can meet the requirements of separate layer water injection and acidification in double step horizontal well.
引文
[1]王增林,崔玉海,郭海萱,等.锚定补偿式分层注水管柱研究及应用[J].石油机械,2001,29(7):30-32.WANG Z L,CUI Y H,GUO H X,et al.Anchoring compensating separate layer waterflooding string[J].China Petroleum Machinery,2001,29(7):30-32.
[2]马来增,孙卫娟,赵明宸.补偿式自验封分层注水管柱的研制与应用[J].石油矿场机械,2004,33(2):66-68.MA L Z,SUN W J,ZHAO M C.Development and application of compensating and self sealing examination injection string of separate zone flooding[J].Oil Fleld Equipment,2004,33(2):66-68.
[3]贾庆升.液控式同心双管分层注水技术[J].石油机械,2009,37(5):59-60,64.JIA Q S.Research on the technology of separate layer water injection by concentric double-tubing with hydraulic control packers[J].China Petroleum Machinery,2009,37(5):59-60,64.
[4]杨洪源,于鑫,齐德山,等.桥式偏心配水管柱在分层测试中的应用[J].石油机械,2009,37(3):59-60,63.YANG H Y,YU X,QI D S,et al.Application of bridge eccentric water distribution column in stratified test[J].China Petroleum Machinery,2009,37(3):59-60,63.
[5]林仁义,罗平亚,孙雷,等.高温高盐产水气藏微胶堵水封堵特性实验[J].天然气工业,2018,38(3):69-75.LIN R Y,LUO P Y,SUN L,et al.Blocking characteristics of microgel in high-temperature and high-salinity waterproducing gas reservoirs:an experimental study[J].Natural Gas Industry,2018,38(3):69-75.
[6]李江涛,柴小颖,邓成刚,等.提升水驱气藏开发效果的先期控水技术[J].天然气工业,2017,37(7):132-139.LI J T,CHAI X Y,DENG C G,et al.Early-stage water control technology in improving the development effeciency ofwater drive gas reservoirs[J].Natural Gas Industry,2017,37(7):132-139.
[7]韩承骋,陈雷,孟康,等.桥式偏心分层注水水嘴选配方法研究[J].断块油气田,2013,20(5):659-662.HAN C C,CHEN L,MENG K,et al.Selection method of throttle for bridge type eccentric stratified waterflooding[J].Fault Block Oil&gas Field,2013,20(5):659-662.
[8]LIU H,GAO Y,SUN F C,et al.Overview of key zonal water injection technologies in China[C]∥IPTC2013:International Petroleum Technology Conference.2013.
[9]曾文广,卢开东,张建军,等.超深井碳酸盐岩油藏裸眼分层注水管柱研究[J].石油矿场机械,2013,42(10):6-11.ZENG W G,LU K D,ZHANG J J,et al.Research of separate layer water injection string for open hole in ultra deep carbonate reservoir[J].Oil Fleld Equipment2013,42(10):6-11.
[10]张玉荣,闫建文,杨海英,等.国内分层注水技术新进展及发展趋势[J].石油钻采工艺,2011,33(2):102-107.ZHANG Y R,YAN J W,YANG H Y,et al.Technologies of separated layer water flooding:an overview[J].Oil Drilling&Production Technology,2011,33(2):102-107.
[11]王宏万,李永康,马艳洁,等.分层酸化,注水一体化管柱的研制及应用[J].石油机械,2015,43(7):108-110.WANG H W,LI Y K,MA Y J,et al.Development and application of integrated separate layer acidification and water injection string[J].China Petroleum Machinery,2015,43(7):108-110.
[12]NUNEZ-LOPEZ G J,AMAYA M,HERNANDEZ M J,et al.Integrated sand-production management in a heterogeneous and multilayer mature field with water injection[C]∥SPE Latin American and Caribbean Petroleum Engineering Conference.[S.l.]:Society of Petroleum Engineers,2010.
[13]张立义,黄新业,王金龙,等.双台阶水平井分层注水管柱设计及优化[J].石油机械,2016,44(2):97-101.ZHANG L Y,HUANG X Y,WANG J L,et al.Optimization of multilayer water injection string for two-step horizontal well[J].China Petroleum Machinery,2016,44(2):97-101.
[14]刘江波,白小佩,王效明,等.长庆油田带压作业分层注水工艺管柱[J].断块油气田,2014,21(2):259-261.LIU J B,BAI X P,WANG X M,et al.Snubbing string of separate layer water injection in Changqing Oilfield[J].Fault Block Oil&Gas Field,2014,21(2):259-261.
[15]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):560-566.
[16]耿海涛,肖国华,宋显民,等.同心测调一体分注技术研究与应用[J].断块油气田,2013,20(3):406-408.GENG H T,XIAO G H,SOMG X M,et al.Research and application of concentric testing and regulating in separate layer injection[J].Fault Block Oil&Gas Field,2013,20(3):406-408.
[17]TERRY B,MARK B.Design and qualification of a remotely-operated,downhole flow control system for highrate water injection in deepwater[C]//SPE Asia Pacific Oil and Gas Conference and Exhibition.[S.l.]:Society of Petroleum Engineers,2004.
[2]马来增,孙卫娟,赵明宸.补偿式自验封分层注水管柱的研制与应用[J].石油矿场机械,2004,33(2):66-68.MA L Z,SUN W J,ZHAO M C.Development and application of compensating and self sealing examination injection string of separate zone flooding[J].Oil Fleld Equipment,2004,33(2):66-68.
[3]贾庆升.液控式同心双管分层注水技术[J].石油机械,2009,37(5):59-60,64.JIA Q S.Research on the technology of separate layer water injection by concentric double-tubing with hydraulic control packers[J].China Petroleum Machinery,2009,37(5):59-60,64.
[4]杨洪源,于鑫,齐德山,等.桥式偏心配水管柱在分层测试中的应用[J].石油机械,2009,37(3):59-60,63.YANG H Y,YU X,QI D S,et al.Application of bridge eccentric water distribution column in stratified test[J].China Petroleum Machinery,2009,37(3):59-60,63.
[5]林仁义,罗平亚,孙雷,等.高温高盐产水气藏微胶堵水封堵特性实验[J].天然气工业,2018,38(3):69-75.LIN R Y,LUO P Y,SUN L,et al.Blocking characteristics of microgel in high-temperature and high-salinity waterproducing gas reservoirs:an experimental study[J].Natural Gas Industry,2018,38(3):69-75.
[6]李江涛,柴小颖,邓成刚,等.提升水驱气藏开发效果的先期控水技术[J].天然气工业,2017,37(7):132-139.LI J T,CHAI X Y,DENG C G,et al.Early-stage water control technology in improving the development effeciency ofwater drive gas reservoirs[J].Natural Gas Industry,2017,37(7):132-139.
[7]韩承骋,陈雷,孟康,等.桥式偏心分层注水水嘴选配方法研究[J].断块油气田,2013,20(5):659-662.HAN C C,CHEN L,MENG K,et al.Selection method of throttle for bridge type eccentric stratified waterflooding[J].Fault Block Oil&gas Field,2013,20(5):659-662.
[8]LIU H,GAO Y,SUN F C,et al.Overview of key zonal water injection technologies in China[C]∥IPTC2013:International Petroleum Technology Conference.2013.
[9]曾文广,卢开东,张建军,等.超深井碳酸盐岩油藏裸眼分层注水管柱研究[J].石油矿场机械,2013,42(10):6-11.ZENG W G,LU K D,ZHANG J J,et al.Research of separate layer water injection string for open hole in ultra deep carbonate reservoir[J].Oil Fleld Equipment2013,42(10):6-11.
[10]张玉荣,闫建文,杨海英,等.国内分层注水技术新进展及发展趋势[J].石油钻采工艺,2011,33(2):102-107.ZHANG Y R,YAN J W,YANG H Y,et al.Technologies of separated layer water flooding:an overview[J].Oil Drilling&Production Technology,2011,33(2):102-107.
[11]王宏万,李永康,马艳洁,等.分层酸化,注水一体化管柱的研制及应用[J].石油机械,2015,43(7):108-110.WANG H W,LI Y K,MA Y J,et al.Development and application of integrated separate layer acidification and water injection string[J].China Petroleum Machinery,2015,43(7):108-110.
[12]NUNEZ-LOPEZ G J,AMAYA M,HERNANDEZ M J,et al.Integrated sand-production management in a heterogeneous and multilayer mature field with water injection[C]∥SPE Latin American and Caribbean Petroleum Engineering Conference.[S.l.]:Society of Petroleum Engineers,2010.
[13]张立义,黄新业,王金龙,等.双台阶水平井分层注水管柱设计及优化[J].石油机械,2016,44(2):97-101.ZHANG L Y,HUANG X Y,WANG J L,et al.Optimization of multilayer water injection string for two-step horizontal well[J].China Petroleum Machinery,2016,44(2):97-101.
[14]刘江波,白小佩,王效明,等.长庆油田带压作业分层注水工艺管柱[J].断块油气田,2014,21(2):259-261.LIU J B,BAI X P,WANG X M,et al.Snubbing string of separate layer water injection in Changqing Oilfield[J].Fault Block Oil&Gas Field,2014,21(2):259-261.
[15]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):560-566.
[16]耿海涛,肖国华,宋显民,等.同心测调一体分注技术研究与应用[J].断块油气田,2013,20(3):406-408.GENG H T,XIAO G H,SOMG X M,et al.Research and application of concentric testing and regulating in separate layer injection[J].Fault Block Oil&Gas Field,2013,20(3):406-408.
[17]TERRY B,MARK B.Design and qualification of a remotely-operated,downhole flow control system for highrate water injection in deepwater[C]//SPE Asia Pacific Oil and Gas Conference and Exhibition.[S.l.]:Society of Petroleum Engineers,2004.