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公开(公告)号：US09027652B2
公开(公告)日：2015-05-12
申请号：US13541738
申请日：2012-07-04
申请人： Boris P. Cherewyk
发明人： Boris P. Cherewyk
IPC分类号： E21B33/068 , E21B23/08
CPC分类号： E21B23/08 , E21B33/068
摘要： A method is provided for safely delivering actuators such as balls from a ball injector to a downhole tool in a wellbore. A structure or carrier medium, such as a slug of gel or foam, is introduced to a bore of injector and the ball is injected into the bore for support by the carrier medium. A displacement fluid, such as fracturing fluid, is pumped into the wellbore to drive the carrier medium and ball. Each slug and ball can be retrieved at a ball catcher at the wellhead.
摘要翻译： 提供了一种用于将诸如球的致动器从球注射器安全地输送到井眼中的井下工具的方法。 将诸如凝胶或泡沫块的结构或载体介质引入注射器的孔中，并将球注入孔中以由载体介质支撑。 将位移流体（如压裂液）泵送到井眼中以驱动载体介质和球。 每个s子和球都可以在井口处的一个捕球器上取出。
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2.发明授权公开(公告)号：US08122949B2
公开(公告)日：2012-02-28
申请号：US12243854
申请日：2008-10-01
IPC分类号： E21B33/03
CPC分类号： E21B33/068 , E21B43/26
摘要： A tapered sleeve and fracturing head system for introducing fracturing fluid to a wellbore, while protecting a conveyance string from the erosive effects of the fracturing fluid is disclosed. A tapered sleeve has a top portion and a tapered downhole portion. The sleeve is fit to a main bore of a fracturing head by an upset at the top portion of the sleeve that engages a shoulder of the fracturing head. The sleeve intercepts, deflects and redirects introduced fracturing fluids downhole, preventing direct impingement of the fracturing fluid against the conveyance string. The main bore of the fracturing head may also be tapered at an angle substantial parallel to and along the length of the taper of the sleeve, to further improve the fluid dynamics of the fracturing fluid and further reduce the erosive effects of the fracturing fluid.
摘要翻译： 公开了一种用于将压裂流体引入井筒的锥形套管和压裂头系统，同时保护输送管线免受压裂液的侵蚀作用。 锥形套筒具有顶部和锥形井下部分。 套筒通过在套筒的顶部处的镦粗而与压裂头的主孔相配合，从而与压裂头的肩部接合。 套管拦截，引导和引导井下引入的压裂液，防止压裂液直接撞击输送管柱。 压裂头的主孔也可以以基本上平行于并且沿着套筒锥度的长度的角度逐渐变细，以进一步改善压裂液的流体动力学，并进一步降低压裂液的侵蚀作用。
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