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METHOD OF PULSE-JET STIMULATION OF WELL AND PRODUCING FORMATION AND DEVICE FOR METHOD EMBODIMENT

机译:用于方法实施例的井的脉冲射流模拟方法以及生产地层和装置

摘要

FIELD: applicable in operation of oil, water and other wells. SUBSTANCE: method includes supply of active fluid medium through tubing string to jet device nozzle. Passive medium is pumped out by jet device from formation zone through tubing string. In this case, prior to performance of said operations, channels for intake of both media to jet device are closed by means of blocking insert installed in tubing string. Packers set to transportation state and well under-packer zone is treated with active zone with help of hydraulic pulse device with withdrawal of a part of medium through packer from well to surface. After completion of said treatment, packer is set to working position and blocking insert is replaced with depressive insert. Channels of input of active and passive media to jet device are isolated from each other. Passive medium is pumped out through check valve system installed on tubing string below packer. Used as hydraulic pulse device is pressure booster, with flat-jet head in lower part, installed below perforation of well zone. During treatment, pressure booster assembly is lifted along well to provide for formation of flat fan-shaped jets with pulse frequency of 50 to 300 per minute and pressure above 1.5-2.5 values of static pressure value in well at formation level. At each step of treatment, additional depression stimulation of formation is accomplished by means of pulse-depressing device installed on ground surface. Depression stimulation is realized under conditions of hydraulic impact and abrupt opening of well preliminarily loaded with pressure. Offered method is realized by device whose units are described above. EFFECT: higher well productivity. 2 cl, 5 dwg
机译:领域:适用于油,水和其他井的操作。物质:方法包括通过管柱将活性流体介质供应到喷射装置喷嘴。射流装置通过地层带将被动介质从地层带中抽出。在这种情况下,在执行所述操作之前,通过安装在管柱中的阻塞插入件来封闭用于将两种介质吸入喷射装置的通道。处于运输状态的封隔器和井下封隔器区域在液压脉冲装置的帮助下通过活动区域进行处理,一部分介质通过封隔器从井中抽出到地面。在完成所述处理之后,将封隔器设置到工作位置,并用压入式嵌件代替阻塞式嵌件。主动和被动介质到喷射设备的输入通道相互隔离。被动介质通过安装在封隔器下方油管柱上的止回阀系统抽出。增压器用作液压脉冲装置,下部带有平喷头,安装在井区射孔下方。在处理过程中,将增压器总成沿井提升,以形成平扇形射流,脉冲频率为每分钟50到300分钟,并且压力在地层水平上高于静压值的1.5-2.5。在每个处理步骤中,都通过安装在地面上的脉冲下压装置来完成对地层的进一步下压刺激。在水力冲击和预先加载压力的井的突然打开的条件下实现了压裂增产。提供的方法通过上面描述了其单元的设备来实现。效果:更高的油井生产率。 2厘升,5载重吨

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