页岩气可膨胀衬管重复压裂技术现状与发展
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摘要
可膨胀衬管重复压裂技术是一项依托现有膨胀管补贴工艺发展而来的新型重复压裂技术。相比于传统的重复压裂工艺,该技术不仅能完全封堵老产层,还能帮助作业人员准确预测压裂液的流向,精准地控制裂缝的发育,大幅降低了重复压裂的高风险及不确定性,提高了压裂的成功率。将可膨胀衬管重复压裂技术与传统重复压裂技术进行对比,对该技术的原理、优点、施工流程进行了深入剖析,并给出了该技术发展的重点和难点,为今后相关科研人员深入研究该技术提供参考。
ESeal RF Liner Technology is a new re-fracturing technology developed from the existing subsidy technology of expandable liner.Comparing with the traditional re-fracturing technology,this technology could be applied for not only completely plugging the old reservoir,but also for helping the operators to accurately predict the flow direction of fracturing fluid and control the development of fractures,which greatly reduces the risks and uncertainties of re-fracturing,improves the achievement ratio of fracturing.The technical principle,advantages and construction process of the expandable liner pipe re-fracturing technology were analyzed by comparing with the traditional re-fracturing technology,the key points and difficulties during the technology development were discussed.
ESeal RF Liner Technology is a new re-fracturing technology developed from the existing subsidy technology of expandable liner.Comparing with the traditional re-fracturing technology,this technology could be applied for not only completely plugging the old reservoir,but also for helping the operators to accurately predict the flow direction of fracturing fluid and control the development of fractures,which greatly reduces the risks and uncertainties of re-fracturing,improves the achievement ratio of fracturing.The technical principle,advantages and construction process of the expandable liner pipe re-fracturing technology were analyzed by comparing with the traditional re-fracturing technology,the key points and difficulties during the technology development were discussed.
引文
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[2]杨国丰,周庆凡,李颖.美国页岩油气井重复压裂提高采收率技术进展及启示[J].石油科技论坛,2016,35(2):46-51.
[3]闫治涛.重复压裂高效暂堵剂研制与评价[J].中国工程科学,2012,14(4):20-25.
[4]胡永全,林辉,赵金洲,等.重复压裂技术研究[J].天然气工业,2004(3):72-75.
[5]崔青.美国页岩气压裂增产技术[J].石油化工应用,2010,29(10):1-3.
[6]滕春鸣.Enventure GT公司推出可膨胀衬管重复压裂技[J].石油钻探技术,2016,44(2):98.
[7]龙斌.实体膨胀管技术在塔河油田TK1051井的应用[J].西部探矿工程,2009,21(9):46-48.
[8]姚慧智,尹朝伟,赵炜.可膨胀管在石油工业中的应用[J].石油机械,2003(6):70-72.
[9]刘鹏,谢新华,同武军,等.膨胀管外橡胶模块有限元分析与密封计算[J].石油矿场机械,2017,46(1):17-21.
[10]杨晓莉.基于金属密封的膨胀管悬挂力试验研究[J].石油矿场机械,2015,44(8):44-48.