水平分支井射流驱动引导工具控制阀设计
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摘要
针对现有水平分支井射流驱动导入工具中的压力感应式喷嘴开启后无法闭合的现状,引入两块相互吸引的磁铁作为闭合控制阀的辅助动力来源,设计了一种结构稳定、控制简单的具有"常压闭合、中压开启、高压闭合"功能的射流控制阀。对设计的控制阀进行了受力分析,建立了力平衡方程,确定了主要设计参数。对控制阀腔内流体及阀芯进行了流固耦合仿真分析,分析结果显示,最大应力远小于材料的屈服强度,满足设计要求。对样机的开启、闭合压力进行了测试,开启压力的测试值与设计值之间的误差为5%,闭合压力的测试值与设计值之间的误差为7%。研究结果表明,该控制阀满足设计要求及强度要求。该设计对于水平分支井二次重入技术的发展具有一定的促进作用。
In view of the fact that the pressure-sensing nozzle in the horizontal multilateral well jet-drive guide tool cannot be closed after opening,two magnets attracting each other are introduced as the auxiliary power source for closing the control valve,and a jet control valve with stable structure and simple control are designed. The jet control valve has the functions of "normal pressure close,medium pressure open and high pressure close". The forces on the designed control valve are analyzed. The force balance equation is established to determine the main design parameters. The fluid-solid coupling simulation analysis results of the fluid and valve core of the control valve cavity show that the maximum stress is much smaller than the yield strength of the material and meets the design requirements. The opening and closing pressures of the prototype are tested. The error between the test value and the design value of the opening pressure and the closing pressure is 5% and 7%,respectively. The research results show that the control valve meets the design requirements and strength requirements. The design of the control valve has a certain promotion effect on the development of reentry technology of horizontal multilateral wells.
In view of the fact that the pressure-sensing nozzle in the horizontal multilateral well jet-drive guide tool cannot be closed after opening,two magnets attracting each other are introduced as the auxiliary power source for closing the control valve,and a jet control valve with stable structure and simple control are designed. The jet control valve has the functions of "normal pressure close,medium pressure open and high pressure close". The forces on the designed control valve are analyzed. The force balance equation is established to determine the main design parameters. The fluid-solid coupling simulation analysis results of the fluid and valve core of the control valve cavity show that the maximum stress is much smaller than the yield strength of the material and meets the design requirements. The opening and closing pressures of the prototype are tested. The error between the test value and the design value of the opening pressure and the closing pressure is 5% and 7%,respectively. The research results show that the control valve meets the design requirements and strength requirements. The design of the control valve has a certain promotion effect on the development of reentry technology of horizontal multilateral wells.
引文
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[3]陈仁保.水平井采油技术[M].北京:海洋出版社,2012.CHEN R B.Horizontal well production technology[M].Beijing:China Ocean Press,2012.
[4]张峰.长庆油田油气产量创新高[N].中国石油报,2017-11-15(002).ZHANG F.Oil and gas production set a new record in Changqing oil field[N].China Petroleum Daily,2017-11-15(002).
[5]綦兴龙,向俊科,王木乐,等.膨胀管斜向器的研究与应用[J].石油机械,2013,41(10):72-74.QI X L,XIANG J K,WANG M L,et al.Research and application of the expandable casing whipstock[J].China Petroleum Machinery,2013,41(10):72-74.
[6]韦孝忠.浅谈苏里格气田老井开窗侧钻水平井技术[J].钻采工艺,2016,39(1):23-25.WEI X Z.Brief talk on sidetrack horizontal well technology in Sulige gas field old wells[J].Drilling&Production Technology,2016,39(1):23-25.
[7]赵振峰,柴瑞林,徐永高,等.水平分支井井下作业钻具自动定向导入工具:CN200820122846.2[P].2009.ZHAO Z F,CHAI R L,XU Y G,et al.Automatic orientation guide tool of downhole operation drilling tool in horizontal multilateral well:CN200820122846.2[P].2009.
[8]王瑜.永磁装置中磁场力的计算[J].磁性材料及器件,2007,38(5):49-52.WANG Y.Calculation of magnetic force of permanent magnet devices[J].Journal of Magnetic Materials and Devices,2007,38(5):49-52.
[9]钟文定.技术磁学(下)[M].北京:科学出版社,2009.ZHONG W D.Technology of magnetism(Ⅱ)[M].Beijing:Science Press,2009.
[10]张德荣,吴思梦.基于FLUENT的水力喷砂射孔器喷嘴优化设计[J].石油机械,2017,45(12):71-77.ZHANG D R,WU S M.Optimization design of nozzle of hydraulic sand jet perforator based on FLUENT[J].China Petroleum Machinery,2017,45(12):71-77.