公开(公告)号：US09151118B2

公开(公告)日：2015-10-06

申请号：US12955478

申请日：2010-11-29

申请人： Daniel John Robson ,  Paul Allan Sibbald ,  Laurier E. Comeau ,  Christopher Konschuh

发明人： Daniel John Robson ,  Paul Allan Sibbald ,  Laurier E. Comeau ,  Christopher Konschuh

IPC分类号： E21B10/26 ,  E21B10/62 ,  E21B17/10

CPC分类号： E21B10/26 ,  E21B10/62 ,  E21B17/1078

摘要： A downhole apparatus for reaming a borehole incorporates two sets of cutting structures into two integral blade stabilizers, one oriented downhole and the other oriented uphole. The cutting structures comprise polycrystalline diamond cutters that are brazed into a wedge of steel that is inserted into the body of the reamers in an axial direction and retained by a stop block and retention cover that is bolted into the reamer. The two integral blade stabilizers have a combination left hand/right hand blade wrapping to provide 360° support around the circumference of the reamer. Between the two stabilizers, an impeller and a flow accelerator agitate cuttings on the low side of the borehole to mix the cuttings in with the drilling mud.

摘要翻译： 用于铰孔钻孔的井下装置将两组切割结构组合成两个一体式叶片稳定器，一个定向井下和另一个定向的井。 切割结构包括多孔金刚石切割器，其被钎焊到钢楔中，该楔形楔在轴向方向插入到铰刀的主体中并由止动块和固定盖保持在螺栓中。 两个整体的叶片稳定器具有左手/右手叶片组合的组合，以在铰刀周围提供360°的支撑。 在两个稳定器之间，叶轮和流动促进器在钻孔的低侧搅动切屑以将钻屑与钻井泥浆混合。

公开(公告)号：US20120132469A1

公开(公告)日：2012-05-31

申请号：US12955478

申请日：2010-11-29

申请人： Daniel John Robson ,  Paul Allan Sibbald ,  Laurier E. Comeau ,  Christopher Konschuh

发明人： Daniel John Robson ,  Paul Allan Sibbald ,  Laurier E. Comeau ,  Christopher Konschuh

IPC分类号： E21D1/06 ,  E21B10/00 ,  E21B7/04

CPC分类号： E21B10/26 ,  E21B10/62 ,  E21B17/1078

摘要： A downhole apparatus for reaming a borehole incorporates two sets of cutting structures into two integral blade stabilizers, one oriented downhole and the other oriented uphole. The cutting structures comprise polycrystalline diamond cutters that are brazed into a wedge of steel that is inserted into the body of the reamers in an axial direction and retained by a stop block and retention cover that is bolted into the reamer. The two integral blade stabilizers have a combination left hand/right hand blade wrapping to provide 360° support around the circumference of the reamer. Between the two stabilizers, an impeller and a flow accelerator agitate cuttings on the low side of the borehole to mix the cuttings in with the drilling mud.

摘要翻译： 用于铰孔钻孔的井下装置将两组切割结构组合成两个一体式叶片稳定器，一个定向井下和另一个定向的井。 切割结构包括多孔金刚石切割器，其被钎焊到钢楔中，该楔形楔在轴向方向插入到铰刀的主体中并由止动块和固定盖保持在螺栓中。 两个整体的叶片稳定器具有左手/右手叶片组合的组合，以在铰刀周围提供360°的支撑。 在两个稳定器之间，叶轮和流动促进器在钻孔的低侧搅动切屑以将钻屑与钻井泥浆混合。