摘要
水力喷射压裂技术具有管柱结构简单,节省作业时间,适应范围广等优点,已成为一项比较成熟的压裂技术。但是,该技术在施工过程中广泛存在射孔效率低,工具失效等问题。为了提高水力喷射压裂工具的施工效率,分析了问题产生的原因,优化了工艺管柱方案及配套工具,并进行了现场试验。试验结果表明,改进后的工艺管柱方案合理,工具性能大幅提升,施工效率明显提高。
Hydraulic jet fracturing technology has become a relatively mature fracturing technology by its advantages of simple string structure,time saving and wide application range however with many problems such as low perforation efficiency and tool failures during the construction.In order to improve the construction efficiency of hydraulic jet fracturing tool,the reasons for the problems have been analyzed,the process pipe string scheme and supporting tools have been optimized and the field application tests have been performed.The experimental results show a reasonable improved process string scheme,the greatly enhanced tool performance and higher construction efficiency.
引文
[1]田守增,李根生,黄中伟,等.水力喷射压裂机理与技术研究进展[J].石油钻采工艺,2008,30(1):59-62.
[2]李根生,黄中伟,田守嶒,等.水力喷射压裂理论与应用[M].北京:科学出版社,2011:180-181
[3]周后俊,程智远,王海霞,等.新型压裂滑套水力喷射器的研制及应用[J].石油矿场机械,2017,46(1):45-47.
[4]钟森,林立世,方行,等.不动管柱水力喷射分段压裂技术研究和应用[J].油气藏评价与开发,2012,2(6):50-52.
[5]朱正喜,曹会,陈沙沙.国内水力喷射压裂工艺技术应用研究进展[J].石油矿场机械,2014,43(12):82-87.
[6]张波,苏敏文,邓小强,等.水平井多级水力喷射压裂封隔工具[J].石油机械,2012,40(12):109-112.
[7]熊建华,李根生,黄中伟,等.高压水射流深穿透射孔试验研究[J].流体机械,2011,39(5):1-4.
[8]李宪文,陈生圣,赵文轸.水力喷砂射孔压裂喷嘴的损伤试验与分析[J].石油矿场机械,2009,38(2):42-46.
[9]付钢旦,李宪文,任勇,等.水力喷砂射孔参数优化室内实验研究[J].特种油气藏,2011,18(3):97-99.
[10]曲海,李根生,黄中伟,等.水力喷射压裂孔内压力分布研究[J].西南石油大学学报(自然科学版),2010,33(4):85-88.