The utility model discloses a hydraulic jetting double seal single clip perforating and fracturing integrated process string, which is designed to realize the multi section dragging fracturing transformation of the oil and gas field vertical well, multi-layer or horizontal well. The pipe connection safety releasing, through tubing from top to bottom upper packer, hydraulic ejector, hydraulic ejector, packer, sliding sleeve seat, single flow valve, pipe plug and guide the eye. This column combined with fracturing and double seal fracturing single card function hydraulic injection, integrated operation can achieve a tripcolumn perforating and fracturing, can realize vertical wells or horizontal wells by multi-layer multi segment single trip column drag fracturing pipe string has the advantages of simple structure, convenient operation, high efficiency, high safety. Controllable packer can make the pipe with double seal card fracturing, hydraulic controlled injector can effectively reduce the throttle nozzle, for subsequent fracturing in displacement space provide the basis for improved tubing. When the pipe column difficult cannot drill, safety can ensure safety releasing string out.
【技术实现步骤摘要】
本技术涉及一种水力喷射双封单卡射孔压裂一体化工艺管柱,属于油气田压裂
技术介绍
目前,国内的水平井分段改造工艺有水力喷射压裂和封隔器分段压裂等。水力喷砂射孔分段压裂工艺具有施工简单、效率高及可降低井底施工压力等优点,但该工艺对地层的破压高,对井口配套及套管钢级的要求相应较高;而封隔器分段压裂工艺则对井口配套及套管钢级的要求相对较低,但其施工工序相对复杂,需要油管传输射孔,下入专用刮管器时需处理射孔段毛刺,且存在射孔不完善而导致的压不开地层的现象。
技术实现思路
本技术的目的在于提供一种水力喷射双封单卡射孔压裂一体化工艺管柱,以实现油气田直井多层或水平井多段拖动的压裂改造。本技术的具体
技术实现思路
如下:本管柱的油管下端连接安全丢手,安全丢手下端通过油管连接可控式的上封隔器,上封隔器下端连接可控式的上水力喷射器,上水力喷射器下端连接下水力喷射器,下水力喷射器下端通过油管短节连接下封隔器,下封隔器下端连接滑套 ...
【技术保护点】
一种水力喷射双封单卡射孔压裂一体化工艺管柱,其特征在于:本管柱的油管(1)下端连接安全丢手(2),安全丢手(2)下端通过油管(1)连接可控式的上封隔器(3),上封隔器(3)下端连接可控式的上水力喷射器(4),上水力喷射器(4)下端连接下水力喷射器(5),下水力喷射器(5)下端通过油管短节连接下封隔器(6),下封隔器(6)下端连接滑套座(7),滑套座(7)下端连接单流阀(8),单流阀(8)下端连接眼管(9),眼管(9)下端连接导向丝堵(10)。
【技术特征摘要】
1.一种水力喷射双封单卡射孔压裂一体化工艺管柱,其特征在
于:
本管柱的油管(1)下端连接安全丢手(2),安全丢手(2)下端通过
油管(1)连接可控式的上封隔器(3),上封隔器(3)下端连接可控式的
上水力喷射器(4),上水力喷射器...
【专利技术属性】
技术研发人员:冯飞,桂捷,任勇,刘锐,冯长青,李旭梅,
申请(专利权)人:中国石油天然气股份有限公司,
类型:新型
国别省市:北京;11
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