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1. 发明授权

US07334649B2 Drilling with casing 有权
标题翻译：用套管钻
公开(公告)号：US07334649B2
公开(公告)日：2008-02-26
申请号：US11103186
申请日：2005-04-11
申请人： Chen-Kang D. Chen , M. Vikram Rao
发明人： Chen-Kang D. Chen , M. Vikram Rao
IPC分类号： E21B7/20
CPC分类号： E21B7/067 , E21B7/20 , E21B10/26 , E21B17/08 , E21B17/1092
摘要： A borehole may be drilled utilizing the bottom hole assembly 10, 50 with a downhole motor 14, 110, which may offset at a selected bend angle. A bend for directional drilling may be provided by a PDM, or by a RSD. A gauge section 36 secured to the pilot bit 18 has a uniform diameter bearing surface along an axial length of at least 60% of the pilot bit diameter. The bit or reamer 16 has a bit face defining the cutting diameter of the drilled hole. The axial spacing between the bend and the bit face is controlled to less than fifteen times the bit diameter. The downhole motor, pilot bit and bit may be retrieved from the well while leaving the casing string in the well.
摘要翻译：可以利用底孔组件10,50钻出钻孔，井下电机14,110可以以选定的弯曲角度偏移。用于定向钻孔的弯曲可以由PDM或RSD提供。固定到导向钻头18的标尺部分36沿着导向钻头直径的至少60％的轴向长度具有均匀的直径支承表面。钻头或铰刀16具有限定钻孔的切割直径的钻头面。弯头与钻头面之间的轴向间距被控制在钻头直径的十五倍以下。井下电机，导向钻头和钻头可以从井中取出，同时将套管柱留在井中。

2. 发明授权

US07213643B2 Expanded liner system and method 有权
标题翻译：膨胀衬管系统和方法
公开(公告)号：US07213643B2
公开(公告)日：2007-05-08
申请号：US10421135
申请日：2003-04-23
申请人： Chen-Kang D. Chen , Daniel D. Gleitman , M. Vikram Rao
发明人： Chen-Kang D. Chen , Daniel D. Gleitman , M. Vikram Rao
IPC分类号： E21B23/00 , E21B7/00
CPC分类号： E21B7/20 , E21B7/067 , E21B7/068 , E21B10/26 , E21B43/103
摘要： A borehole may be drilled utilizing the bottom hole assembly 10, 50 with a downhole motor 14, which may offset at a selected bend angle. A gauge section 34 is secured to the bit 16 has a uniform diameter bearing surface along an axial length of at least 60% of the bit diameter. The axial spacing between the bend and the bit face is controlled to less than fifteen times the bit diameter. After drilling a section of the well with the BHA according to the present invention, a tubular may be inserted in the well by passing the tubular through an upper tubular, then the inserted tubular expanded while downhole to a diameter substantially equal to the expanded tubular.
摘要翻译：可以利用底孔组件10,50钻出钻孔，井下电机14可以以选定的弯曲角度偏移。标尺部分34被固定到钻头16上，沿钻头直径的至少60％的轴向长度具有均匀直径的支承表面。弯头与钻头面之间的轴向间距被控制在钻头直径的十五倍以下。在根据本发明的BHA钻井一段井后，可以通过使管通过上管而将管状物插入井中，然后将插入的管在井下扩展至基本上等于膨胀管的直径。

3. 发明授权

US06877570B2 Drilling with casing 有权
标题翻译：用套管钻
公开(公告)号：US06877570B2
公开(公告)日：2005-04-12
申请号：US10320164
申请日：2002-12-16
申请人： Chen-Kang D. Chen , M. Vikram Rao
发明人： Chen-Kang D. Chen , M. Vikram Rao
IPC分类号： E21B7/06 , E21B7/20 , E21B10/26 , E21B17/08 , E21B17/10
CPC分类号： E21B7/067 , E21B7/20 , E21B10/26 , E21B17/08 , E21B17/1092
摘要： A borehole may be drilled utilizing the bottom hole assembly 10, 50 with a downhole motor 14, which may offset at a selected bend angle. The motor housing is preferably run slick, and a gauge section 36 secured to the pilot bit 18 has a uniform diameter bearing surface along an axial length of at least 60% of the pilot bit diameter. The bit or reamer 16 has a bit face defining the cutting diameter of the drilled hole. The axial spacing between the bend and the bit face is controlled to less than fifteen times the bit diameter. The downhole motor, pilot bit and bit may be retrieved from the well while leaving the casing string in the well.
摘要翻译：可以利用底孔组件10,50钻出钻孔，井下电机14可以以选定的弯曲角度偏移。电动机壳体优选流动滑动，并且固定到导向钻头18的量规部分36沿着导向钻头直径的至少60％的轴向长度具有均匀的直径支承表面。钻头或铰刀16具有限定钻孔的切割直径的钻头面。弯头与钻头面之间的轴向间距被控制在钻头直径的十五倍以下。井下电机，导向钻头和钻头可以从井中取出，同时将套管柱留在井中。

4. 发明授权

US07147066B2 Steerable drilling system and method 有权
标题翻译：可行钻井系统及方法
公开(公告)号：US07147066B2
公开(公告)日：2006-12-12
申请号：US10230709
申请日：2002-08-29
申请人： Chen-Kang D. Chen , Thomas M. Gaynor , Daniel D. Gleitman , John R. Hardin, Jr. , Colin Walker , M. Vikram Rao , Roger Boulton
发明人： Chen-Kang D. Chen , Thomas M. Gaynor , Daniel D. Gleitman , John R. Hardin, Jr. , Colin Walker , M. Vikram Rao , Roger Boulton
IPC分类号： E21B7/04 , E02D29/00
CPC分类号： E21B7/068 , E21B7/067 , E21B47/01
摘要： A bottom hole assembly 10 for drilling a deviated borehole includes a positive displacement motor (PDM) 12 or a rotary steerable device (RSD) 110 having a substantially uniform diameter motor housing outer surface without stabilizers extending radially therefrom. In a PDM application, the motor housing 14 may have a fixed bend therein between an upper power section 16 and a lower bearing section 18. The long gauge bit 20 powered by the motor 10 may have a bit face 22 with cutters 28 thereon and a gauge section 24 having a uniform diameter cylindrical surface 26. The gauge section 24 preferably has an axial length at least 75% of the bit diameter. The axial spacing between the bit face and the bend of the motor housing preferably is less than twelve times the bit diameter. According to the method of the present invention, the bit may be rotated at a speed of less than 350 rpm by the PDM and/or rotation of the RSD from the surface.
摘要翻译：用于钻出偏斜钻孔的底孔组件10包括具有基本均匀直径的马达壳体外表面的正位移马达（PDM）12或旋转可操纵装置（RSD）110，而不具有从其径向延伸的稳定器。在PDM应用中，马达壳体14可以在上功率部分16和下轴承部分18之间具有固定弯曲。由电动机10供电的长规格位20可以具有在其上具有切割器28的钻头面22和具有均匀直径的圆柱形表面26的量规部分24。计量部分24优选地具有至少钻头直径的75％的轴向长度。钻头面和马达壳体的弯曲部之间的轴向间距优选小于钻头直径的十二倍。根据本发明的方法，该钻头可以通过PDM以及/或RSD从表面的旋转以小于350rpm的速度旋转。

5. 发明授权

US06269892B1 Steerable drilling system and method 有权
标题翻译：可行钻井系统及方法
公开(公告)号：US06269892B1
公开(公告)日：2001-08-07
申请号：US09217764
申请日：1998-12-21
申请人： Roger Boulton , Chen-Kang D. Chen , Thomas C. Gaynor , M. Vikram Rao
发明人： Roger Boulton , Chen-Kang D. Chen , Thomas C. Gaynor , M. Vikram Rao
IPC分类号： E21B704
CPC分类号： E21B7/068 , E21B7/067 , E21B47/01
摘要： A bottom hole assembly 10 for drilling a deviated borehole includes a positive displacement motor 12 having a substantially uniform diameter motor housing outer surface without stabilizers extending radially therefrom. The motor housing 14 has a fixed bend therein between an upper power section 16 and a lower bearing section 18. The long gauge bit 20 powered by the motor 10 has a bit face 22 with cutters 28 thereon and a gauge section 24 having a uniform diameter cylindrical surface 26. The gauge section 24 has an axial length at least 75% of the bit diameter. The axial spacing between the bit face and the bend of the motor housing is less than ten times the bit diameter. According to the method of the present invention, fluid is pumped through the downhole motor to rotate the bit at a speed of less than 350 rpm. A substantial portion of the curved borehole section may be drilled while sliding rather than rotating the motor housing.
摘要翻译：用于钻出偏斜钻孔的底孔组件10包括具有基本上均匀直径的马达的容积式马达12，该马达具有外部表面，而没有从其径向延伸的稳定器。电动机壳体14在上功率部分16和下轴承部分18之间具有固定的弯曲。由电动机10供电的长规格钻头20具有在其上具有切割器28的钻头面22和具有均匀直径的量规部分24 表面部分24的轴向长度至少为钻头直径的75％。钻头面和马达外壳的弯头之间的轴向间距小于钻头直径的十倍。根据本发明的方法，将流体泵送通过井下电动机，以小于350rpm的速度旋转钻头。可以在滑动而不是旋转电动机壳体的同时钻出弯曲钻孔部分的大部分。

6. 发明授权

US07621343B2 Steerable drilling system and method 有权
标题翻译：可行钻井系统及方法
公开(公告)号：US07621343B2
公开(公告)日：2009-11-24
申请号：US11491738
申请日：2006-07-24
申请人： Chen-Kang D. Chen , Thomas M. Gaynor , Daniel D. Gleitman , John R. Hardin, Jr. , Colin Walker , M. Vikram Rao , Roger Boulton
发明人： Chen-Kang D. Chen , Thomas M. Gaynor , Daniel D. Gleitman , John R. Hardin, Jr. , Colin Walker , M. Vikram Rao , Roger Boulton
IPC分类号： E21B7/04 , E02D29/00
CPC分类号： E21B7/068 , E21B7/067 , E21B47/01
摘要： A bottom hole assembly 10 for drilling a deviated borehole includes a positive displacement motor (PDM) 12 or a rotary steerable device (RSD) 110 having a substantially uniform diameter motor housing outer surface without stabilizers extending radially therefrom. In a PDM application, the motor housing 14 may have a fixed bend therein between an upper power section 16 and a lower bearing section 18. The long gauge bit 20 powered by the motor 10 may have a bit face 22 with cutters 28 thereon and a gauge section 24 having a uniform diameter cylindrical surface 26. The gauge section 24 preferably has an axial length at least 75% of the bit diameter. The axial spacing between the bit face and the bend of the motor housing preferably is less than twelve times the bit diameter. According to the method of the present invention, the bit may be rotated at a speed of less than 350 rpm by the PDM and/or rotation of the RSD from the surface.
摘要翻译：用于钻出偏斜钻孔的底孔组件10包括具有基本均匀直径的马达壳体外表面的正位移马达（PDM）12或旋转可操纵装置（RSD）110，而不具有从其径向延伸的稳定器。在PDM应用中，马达壳体14可以在上功率部分16和下轴承部分18之间具有固定的弯曲。由马达10供电的长规格钻头20可以具有在其上具有切割器28的钻头面22和测量部分24具有均匀直径的圆柱形表面26.测量部分24优选地具有至少75％钻头直径的轴向长度。钻头面和马达壳体的弯曲部之间的轴向间距优选小于钻头直径的十二倍。根据本发明的方法，该钻头可以通过PDM以及/或RSD从表面的旋转以小于350rpm的速度旋转。

7. 发明授权

US06581699B1 Steerable drilling system and method 有权
公开(公告)号：US06581699B1
公开(公告)日：2003-06-24
申请号：US09378023
申请日：1999-08-21
申请人： Chen-Kang D. Chen , Thomas M. Gaynor , Daniel D. Gleitman , John R. Hardin, Jr. , Colin Walker , M. Vikram Rao , Roger Boulton
发明人： Chen-Kang D. Chen , Thomas M. Gaynor , Daniel D. Gleitman , John R. Hardin, Jr. , Colin Walker , M. Vikram Rao , Roger Boulton
IPC分类号： E21B704
CPC分类号： E21B7/068 , E21B7/067 , E21B47/01
摘要： A bottom hole assembly 10 for drilling a deviated borehole includes a positive displacement motor (PDM) 12 or a rotary steerable device (RSD) 110 having a substantially uniform diameter motor housing outer surface without stabilizers extending radially therefrom. In a PDM application, the motor housing 14 may have a fixed bend therein between an upper power section 16 and a lower bearing section 18. The long gauge bit 20 powered by the motor 10 may have a bit face 22 with cutters 28 thereon and a gauge section 24 having a uniform diameter cylindrical surface 26. The gauge section 24 preferably has an axial length at least 75% of the bit diameter. The axial spacing between the bit face and the bend of the motor housing preferably is less than twelve times the bit diameter. According to the method of the present invention, the bit may be rotated at a speed of less than 350 rpm by the PDM and/or rotation of the RSD from the surface.

8. 发明授权

US07571777B2 Method and apparatus for a monodiameter wellbore, monodiameter casing, monobore, and/or monowell 有权
标题翻译：用于单径井筒，单径套管，单孔和/或单窝的方法和装置
公开(公告)号：US07571777B2
公开(公告)日：2009-08-11
申请号：US11953169
申请日：2007-12-10
申请人： Glenda Wylie , Frank Zamora , Beegamudre N. Murali , James B. Terry , Lance Everett Brothers , Anthony Vann Palmer , Baireddy R. Reddy , Larry S. Eoff , Jimmie D. Weaver , John M. Wilson , Denise Berryhill , Russell M. Fitsgerald , Anne M. Culotta , M. Vikram Rao , Roger Boulton , Chen-Kang David Chen , Thomas M. Gaynor , John Hardin , Dan Gleitman , Colin Walker
发明人： Glenda Wylie , Frank Zamora , Beegamudre N. Murali , James B. Terry , Lance Everett Brothers , Anthony Vann Palmer , Baireddy R. Reddy , Larry S. Eoff , Jimmie D. Weaver , John M. Wilson , Denise Berryhill , Russell M. Fitsgerald , Anne M. Culotta , M. Vikram Rao , Roger Boulton , Chen-Kang David Chen , Thomas M. Gaynor , John Hardin , Dan Gleitman , Colin Walker
IPC分类号： E21B47/12 , E21B7/26
CPC分类号： C09K8/12 , C09K8/34 , C09K8/512 , E21B33/138 , E21B43/103
摘要： An assembly and methods for constructing a MONOWELL includes a monodiameter casing disposed in a monodiameter wellbore having diametric efficiency with a monobore production delivery system disposed within the monodiameter casing. An assembly for constructing a monodiameter wellbore includes a bottomhole assembly having a overgauge hole drilling member, a directional steering assembly, a measurement while drilling tool, and a logging while drilling tool; a work string attached to the bottomhole assembly and extending to the surface; drilling fluids flowing through the work string and bottomhole assembly; chemical casing casing the borehole; expandable casing disposed in the wellbore; and a sealing composition disposed between the expandable casing and the wellbore.
摘要翻译：用于构造MONOWELL的组件和方法包括设置在具有直径效率的单直径井眼中的单参数壳体，其中单孔生产输送系统设置在单体壳体内。用于构造单一直径井筒的组件包括具有过大孔钻孔构件的井底组件，定向转向组件，钻孔工具的测量以及钻井工具的测井; 连接到井底组件并延伸到表面的工作串; 钻井液流经工作柱和井底组件; 化学套管套管井眼; 设置在井眼中的可膨胀套管; 以及设置在可膨胀套管和井筒之间的密封组合物。

9. 发明授权

US07066284B2 Method and apparatus for a monodiameter wellbore, monodiameter casing, monobore, and/or monowell 有权
公开(公告)号：US07066284B2
公开(公告)日：2006-06-27
申请号：US10293013
申请日：2002-11-13
申请人： Glenda Wylie , Frank Zamora , Beegamudre N. Murali , James B. Terry , Lance Everett Brothers , Anthony Vann Palmer , Baireddy R. Reddy , Larry S. Eoff , Jimmie D. Weaver , John M. Wilson , Denise Berryhill , Russell M. Fitsgerald , M. Vikram Rao , Anne M. Culotta
发明人： Glenda Wylie , Frank Zamora , Beegamudre N. Murali , James B. Terry , Lance Everett Brothers , Anthony Vann Palmer , Baireddy R. Reddy , Larry S. Eoff , Jimmie D. Weaver , John M. Wilson , Denise Berryhill , Russell M. Fitsgerald , M. Vikram Rao , Anne M. Culotta
IPC分类号： E21B43/10 , E21B29/00 , E21B33/14
CPC分类号： C09K8/12 , C09K8/34 , C09K8/512 , E21B33/138 , E21B43/103
摘要： An assembly and methods for constructing a MONOWELL includes a monodiameter casing disposed in a monodiameter wellbore having diametric efficiency with a monobore production delivery system disposed within the monodiameter casing. An assembly for constructing a monodiameter wellbore includes a bottomhole assembly having a overgauge hole drilling member, a directional steering assembly, a measurement while drilling tool, and a logging while drilling tool; a work string attached to the bottomhole assembly and extending to the surface; drilling fluids flowing through the work string and bottomhole assembly; chemical casing casing the borehole; expandable casing disposed in the wellbore; and a sealing composition disposed between the expandable casing and the wellbore.

10. 发明授权

US5495174A Method and apparatus for detecting boundary stratum and adjusting the direction of drilling to maintain the drill string within a bed of interest 失效
标题翻译：用于检测边界层并调整钻孔方向以将钻柱保持在感兴趣的床内的方法和装置
公开(公告)号：US5495174A
公开(公告)日：1996-02-27
申请号：US113969
申请日：1993-08-30
申请人： M. Vikram Rao , Paul F. Rodney
发明人： M. Vikram Rao , Paul F. Rodney
IPC分类号： E21B7/04 , E21B47/02 , G01V3/18 , G01V3/30 , G01V3/20
CPC分类号： E21B47/02 , E21B7/046 , G01V3/18
摘要： Methods and apparatus for detecting the approach of a boundary stratum while drilling in a substantially horizontal subsurface zone using sensor tools having sensors with different depths of investigation. The two depths of investigation signals are used to reduce spurious signals. In some cases, dips or angles of the boundary strat with the borehole may be determined. In alternative embodiments, one or more electromagnetic energy transmitters are used with a single receiver pair to generate a characteristic signature of approaching boundary stratum.
摘要翻译：用于使用具有不同深度调查的传感器的传感器工具在基本水平的地下区域中钻探时检测边界层的接近的方法和装置。调查信号的两个深度用于减少杂散信号。在某些情况下，可以确定边界与钻孔的倾角或角度。在替代实施例中，一个或多个电磁能量发射器与单个接收器对一起使用以产生接近边界层的特征签名。

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