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11. 发明授权

US06705413B1 Drilling with casing 有权
标题翻译：用套管钻
公开(公告)号：US06705413B1
公开(公告)日：2004-03-16
申请号：US09337558
申请日：1999-06-22
申请人： Robert M. Tessari
发明人： Robert M. Tessari
IPC分类号： E21B1100
CPC分类号： E21B10/66 , E21B7/067 , E21B7/208
摘要： A method and apparatus for drilling directional wellbores using a casing string as a drill stem is taught. A retrievable bit is mounted at an end of the casing string and either a mud motor with a bent housing and/or bent sub or a rotary steerable tool is used to direct the bit to drill directionally.
摘要翻译：教导了使用套管柱作为钻杆来钻取定向井筒的方法和装置。可回收钻头安装在套管柱的一端，并且使用具有弯曲壳体和/或弯曲副或旋转可操纵工具的泥浆马达来引导钻头定向钻孔。

12. 发明申请

US20090025981A1 Method for drilling with casing 有权
公开(公告)号：US20090025981A1
公开(公告)日：2009-01-29
申请号：US12284082
申请日：2008-09-18
申请人： Per G. Angman , Robert M. Tessari
发明人： Per G. Angman , Robert M. Tessari
IPC分类号： E21B10/64
CPC分类号： E21B7/20 , E21B7/208 , E21B10/66 , E21B23/08
摘要： A method for drilling boreholes using casing as the drill string and for removing a drilling assembly from the wellbore while leaving the casing in the well bore. In the method, the drilling assembly is prepared for removal from the wellbore by launching a release tool and manipulating the drilling assembly using the release tool.

13. 发明授权

US07140455B2 Valve method for drilling with casing using pressurized drilling fluid 有权
标题翻译：使用加压钻井液钻井的阀门方法
公开(公告)号：US07140455B2
公开(公告)日：2006-11-28
申请号：US10492559
申请日：2004-01-30
申请人： Bruno H. Walter , Robert M. Tessari , Per G. Angman
发明人： Bruno H. Walter , Robert M. Tessari , Per G. Angman
IPC分类号： E21B21/10 , E21B19/00
CPC分类号： E21B7/20 , E21B21/10
摘要： A valve (30), a drill string valve assembly (10) and a method of drilling using compressed fluid as a drill drilling fluid are described. The valve and valve assembly (10) may be used in order to prevent escape of compressed fluid during the time that a connection is being made into the drill string. The valve (10) can be insertable into a drill string inner diameter to seal against fluid passage past the body except through the valve (30) and can be selected to maintain fluid pressure in the drill string when the upper end of the drill string is open to atmosphere. The valve can also be capable of being releasably engaged to a drive mechanism, such as a top drive (40) which is handling the drill string (12) to be slidably moved within the drill string, as driven by the drive mechanism, but releasable from the drive mechanism, when the drive mechanism is removed from the drill string.
摘要翻译：描述了阀（30），钻柱阀组件（10）以及使用压缩流体作为钻井液的钻孔方法。可以使用阀和阀组件（10），以便在连接被制成钻柱期间防止压缩流体逸出。阀（10）可以插入到钻柱内径中，以密封除了通过阀（30）之外的通过主体的流体通道，并且当钻柱的上端为开放大气。该阀还能够可释放地接合到驱动机构，例如在由驱动机构驱动的情况下操纵钻柱（12）以在钻柱内可滑动地移动的驱动机构（40），但可释放当驱动机构从钻柱中移除时。

14. 发明授权

US07108080B2 Method and apparatus for drilling a borehole with a borehole liner 有权
标题翻译：用钻孔衬套钻孔的方法和装置
公开(公告)号：US07108080B2
公开(公告)日：2006-09-19
申请号：US10799217
申请日：2004-03-12
申请人： Robert M. Tessari , Bruce D. Houtchens
发明人： Robert M. Tessari , Bruce D. Houtchens
IPC分类号： E21B7/26
CPC分类号： E21B43/10 , E21B7/20 , E21B21/103 , E21B33/14
摘要： A method for drilling a borehole includes; providing a drill string of drill pipe including a center bore, a distal end, a bit assembly at the distal end; hanging a liner from the drill string, thereby forming an annular space between the drill string and the liner and with the bit assembly extending from a lower end of the liner; positioning the drill string with the liner attached thereto in a borehole such that a second annular space is formed between the liner and the borehole wall; operating the bit assembly to proceed with drilling the borehole; and circulating drilling fluid down through the center bore of the drill string out through the bit assembly and down through the second annular space between the liner and the borehole wall, the drilling fluid returning up through the annular space between the drill string and the liner.
摘要翻译：钻孔的方法包括：提供钻杆的钻柱，其包括中心孔，远端，位于远端的钻头组件; 从钻柱中悬挂衬垫，从而在钻柱和衬套之间形成环形空间，并且钻头组件从衬套的下端延伸; 将其中附接有衬垫的钻柱定位在钻孔中，使得在衬套和井眼壁之间形成第二环形空间; 操作钻头组件以继续钻孔; 并且将钻井液体向下循环穿过钻头组件的中心孔并向下穿过衬套和钻孔壁之间的第二环形空间，钻井液体通过钻柱和衬套之间的环形空间返回。

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