桥式同心分层注水工艺的研究与试验
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摘要
由于常规偏心分注技术、桥式偏心分注技术存在着测调成功率低、效率低、工作量大、作业风险大等诸多问题,提出了桥式同心分层注水工艺技术。该技术将可调式水嘴与配水器一体化集成,实现配水器中心通道内免投捞配水作业模式,通过地面可视化直读方式操作井下测调仪与配水器同心定位对接,实现流量测试与调配同步进行,具有较高的测调成功率和工艺效率。桥式同心分层注水工艺在长庆油田现场应用1 664口井,施工成功率100%,分层测调合格率96.8%,平均单井测调时间4~6 h,具有一定的推广价值。
Due to low success rate in testing, low efficiency, large workload and large work risks of conventional eccentric separate layer injection technology and bridge eccentric separate injection technology, this paper presents this bridge concentric separated layer water injection technology. This technology is capable of integrating the adjustable water nozzle with water distributor, realizing fishingfree water distribution inside the central channel of water distribution. And the downhole tester can be operated through surface visualized direct reading to be concentrically positioned and connected with water distributor. This technology carries out flow test and allocation simultaneously, having high successful rate in testing and high technological efficiency. This technology has been used in 1 664 wells in Changqing Oilfield with 100% successful rate in operation and 96.8% acceptable rate in separate testing. The average single testing time is 4~6 h, and of some promotional value.
Due to low success rate in testing, low efficiency, large workload and large work risks of conventional eccentric separate layer injection technology and bridge eccentric separate injection technology, this paper presents this bridge concentric separated layer water injection technology. This technology is capable of integrating the adjustable water nozzle with water distributor, realizing fishingfree water distribution inside the central channel of water distribution. And the downhole tester can be operated through surface visualized direct reading to be concentrically positioned and connected with water distributor. This technology carries out flow test and allocation simultaneously, having high successful rate in testing and high technological efficiency. This technology has been used in 1 664 wells in Changqing Oilfield with 100% successful rate in operation and 96.8% acceptable rate in separate testing. The average single testing time is 4~6 h, and of some promotional value.
引文
[1]罗艳滚,王姝,李留中,等.南堡油田斜井分层注水技术研究[J].石油钻采工艺,2009,31(S2):124-127.
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[4]王琳.桥式偏心分层注水测试管柱平衡密封段的研制[J].石油机械,2006,34(11):59-60.
[5]范锡彦,于鑫,杨洪源,等.分层注水井分层流量及验封测试技术[J].石油机械,2007,35(10):64-65.
[6]ZHOU W,XIE Z Y,LI J S,et al.Development and practice of separate layer production technique in Daqing Oilfield[R].SPE 30813,1997.
[7]PEI X H,YANG Z P,LI B,et al.History an actuality of separate layer oil production technologies in Daqing Oilfield[R].SPE 100859,2006.
[8]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.
[9]李明,金文庆,巨亚锋,等.桥式偏心分层注水技术在大斜度井上的应用[J].石油机械,2010,38(12):70-72.
[10]李明,王治国,朱蕾,等.桥式偏心分层注水技术现场试验研究[J].石油矿场机械,2010,39(10):66-70.
[2]石建设,顾春元,姜建胜,等.定向井分层注水工艺研究与应用[J].石油钻采工艺,2000,22(1):46-49.
[3]邓刚,王琦,高哲.桥式偏心分层注水及测试新技术[J].油气井测试,2002,11(3):45-48,77.
[4]王琳.桥式偏心分层注水测试管柱平衡密封段的研制[J].石油机械,2006,34(11):59-60.
[5]范锡彦,于鑫,杨洪源,等.分层注水井分层流量及验封测试技术[J].石油机械,2007,35(10):64-65.
[6]ZHOU W,XIE Z Y,LI J S,et al.Development and practice of separate layer production technique in Daqing Oilfield[R].SPE 30813,1997.
[7]PEI X H,YANG Z P,LI B,et al.History an actuality of separate layer oil production technologies in Daqing Oilfield[R].SPE 100859,2006.
[8]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.
[9]李明,金文庆,巨亚锋,等.桥式偏心分层注水技术在大斜度井上的应用[J].石油机械,2010,38(12):70-72.
[10]李明,王治国,朱蕾,等.桥式偏心分层注水技术现场试验研究[J].石油矿场机械,2010,39(10):66-70.