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    • 1. 发明授权
    • Drilling system using weight of mud
    • 钻井系统采用泥土重量
    • US3958650A
    • 1976-05-25
    • US581408
    • 1975-05-28
    • James H. CobbsRoger J. Morrell
    • James H. CobbsRoger J. Morrell
    • E21B21/16C09K7/00E21B21/00
    • E21B21/16
    • A drill system for drilling very large holes in the earth, of diameters up to from 10 to 20 feet, by means of a rotary bit carrying a plurality of cutters, wherein the bit assembly is pressed against the bottom of the hole, so that the unit pressure against each of the cutters will be adequate for their optimum performance. The force holding the bit in contact with the bottom of the hole is created by the weight of the drilling liquid on top of the bit. A fluid seal is maintained between the outer edge of the bit and the wall of the bore hole. Liquid flows down the annulus around the drill pipe and through a plurality of orifices in the bit, terminating at the bit cutters. Rock cuttings are washed radially inwardly to a central drill pipe, which supports the bit, and through which torque is applied to the bit. The pressure drop in the orifices serves to create a differential pressure above and below the bit. The differential pressure times the exposed surface area of the bit provides the hold down force. Cuttings are lifted out of the central drill pipe by means of a smaller diameter pipe lowered inside of the drill pipe, through which compressed air is applied.
    • 一种用于在地球上钻出非常大的孔的钻孔系统,其直径可达10至20英尺,通过承载多个切割器的旋转钻头,其中钻头组件被压靠在孔的底部,使得 对每个切割机的单位压力将足以达到其最佳性能。 保持钻头与孔底部接触的力是由钻头顶部钻井液的重量产生的。 在钻头的外边缘和钻孔的壁之间保持流体密封。 液体沿着钻杆管周围的环空流动并穿过钻头中的多个孔,终止于钻头刀。 岩石切屑被径向向内冲洗到支撑钻头的中心钻杆,并且通过该钻杆施加扭矩。 孔中的压降用于在钻头上方和下方产生压差。 压差乘以钻头的暴露表面积提供压紧力。 通过在钻杆内部下降的较小直径的管将切屑从中央钻杆中提出,通过该钻杆施加压缩空气。
    • 2. 发明授权
    • Rock cutting tool
    • 岩石切割工具
    • US4907664A
    • 1990-03-13
    • US285594
    • 1988-12-16
    • James H. CobbsDavid C. Cobbs
    • James H. CobbsDavid C. Cobbs
    • E21B10/10E21B10/16E21B10/28
    • E21B10/16E21B10/10E21B10/28
    • A drilling member for use in a drilling system, such as for drilling a large diameter subterranean hole or for removing rock at the earth's surface, in which the system employs a cutting head rotated about an axis and mounted for movement into a rock face, the cutting head having a plurality of drilling members, each of which has a truncated conical external surface rotated about the conical axis thereof, and a plurality of spaced-apart rows of indentors secured to the drilling member conical surface, the indentors being adapted to penetrate into the rock face a distance P, and wherein the indentors are spaced a distance not greater than 7 P apart.
    • 一种用于钻井系统的钻孔构件,例如用于钻出大直径地下孔或用于移除地球表面的岩石,其中系统采用围绕轴旋转并安装成用于移动到岩面中的切割头, 切割头具有多个钻孔构件,每个钻孔构件具有围绕其圆锥形轴线旋转的截头圆锥形外表面和固定到钻孔构件锥形表面的多个间隔开的一排压头,所述压头适于穿透入 岩石面积为距离P,并且其中压痕间隔开不大于7P的距离。
    • 3. 发明授权
    • Mine enhanced hydrocarbon recovery technique
    • 矿用增强烃回收技术
    • US4165903A
    • 1979-08-28
    • US875427
    • 1978-02-06
    • James H. Cobbs
    • James H. Cobbs
    • E21C41/18E21C41/10
    • E21C41/24
    • A method of extracting hydrocarbon from an underground strata, wherein the hydrocarbon has high in situ viscosity, by the steps of forming a vertical access hole from the earth's surface to a point below the strata, the diameter of the access hole being sufficient to permit passage of workmen and machinery, mining an elongated horizontal shaft from the vertical access hole under the strata, establishing at least one drilling station in the horizontal shaft, drilling upwardly from the drilling station a plurality of wells into the hydrocarbon strata, the wells being spaced apart and preferably drilled so as to be substantially vertical in the hydrocarbon strata, injecting a viscosity reducing agent into one or more of the wells to reduce hydrocarbon in the strata to free flowing liquid, withdrawing the free flowing hydrocarbon from the strata through one or more of the wells, and pumping the withdrawn hydrocarbon to the earth's surface.
    • 一种从地下层提取烃的方法,其中烃具有高的原位粘度,通过形成从地球表面到地层下方的垂直通道的步骤,进入孔的直径足以允许通过 的工人和机械,从地层下方的垂直通道孔挖出细长的水平轴,在水平轴上建立至少一个钻井台,从钻井站向上钻取多个井进入烃层,井间隔开 并且优选地在烃层中钻取成基本垂直的方式,将一种或多种这样的孔注入一个或多个孔中,以将地层中的烃减少为自由流动的液体,通过一个或多个 并将抽出的碳氢化合物泵送到地球表面。
    • 4. 发明授权
    • Technique for lining shaft
    • 衬里轴技术
    • US3958637A
    • 1976-05-25
    • US580111
    • 1975-05-22
    • James H. Cobbs
    • James H. Cobbs
    • E21B33/138E21B33/14E21D5/12E21B33/13
    • E21B33/138E21B33/146E21D5/12
    • Method and apparatus for lining large diameter, deep, boreholes in the earth, which provides a relatively thick lining of cement. A slip form is provided having a cylindrical outer wall of the diameter corresponding to the desired inner diameter of the liner. This is supported on a long central pipe through which cement can be pumped through side pipes and through openings in the wall of the slip form. A base unit is provided with an internal diameter substantially equal to that of the slip form. A petal basket of flexible material is not provided to seal against the wall of the borehole. The slip form is attached to the base by means of shear pins, and the assembly lowered into the borehole until the base is on bottom. Cement is pumped down through the central pipe and out through the openings in the slip form to form a cement liner between the slip form, the base, and the wall of the borehole. When the cement reaches a first set, the slip form is lifted, breaking the shear pins. Cement is then pumped through the upper set of openings and the slip form is raised at a slow controlled rate, so that there is always support for the cement at the lowest part of the slip form, so that it has a residence time at least sufficient to reach that first set, before the slip form moves up. This process is continued until the complete liner is in place.
    • 在地球内衬大直径,深孔,钻孔的方法和装置,提供了较厚的水泥衬里。 提供了一种滑动形式,其具有对应于衬套的期望内径的直径的圆柱形外壁。 这种支撑在一个长的中心管上,水泥可以通过这些中心管被泵送通过侧管,并穿过滑动壁的壁上的开口。 底座单元具有基本上等于滑动形式的内径的内径。 不提供弹性材料的花瓣篮以密封钻孔壁。 滑动形式通过剪切销附接到基座,并且组件下降到钻孔中,直到基部在底部。 水泥通过中心管被抽出并通过开口形成滑动形式,以在滑动形式,底座和井壁之间形成水泥衬套。 当水泥达到第一组时,滑动形式被提升,破坏剪切销。 然后将水泥泵送通过上部开口,并且滑动形式以缓慢的控制速率升高,使得在滑动形式的最低部分总是支撑水泥,使得其具有至少足够的停留时间 到达第一组,在滑动形式向上移动之前。 该过程一直持续到完整的衬管就位。
    • 5. 发明授权
    • Rock saw
    • 摇滚看
    • US5295735A
    • 1994-03-22
    • US896203
    • 1992-06-10
    • David C. CobbsJames H. Cobbs
    • David C. CobbsJames H. Cobbs
    • E21B10/12E21C25/16E21B10/16
    • E21C25/16E21B10/12
    • A device for cutting trenches in hard rock. A plurality of disc-like primary cutters are positioned on arms around a frame. The frame rotates about a central shaft and the center shaft is moved along horizontally in the direction the trench is to be cut. Between the primary cutters are reaming cutters. Each primary and each reaming cutter is provided with a plurality of spaced apart indentors secured to the external surface and each indentor has an end point and being adaptable to penetrate the rock face upon the application of working force a distance "P" and wherein the indentor end points are spaced a distance not greater then 7P apart.
    • 用于切割硬岩中的沟槽的装置。 多个盘状主切割器位于框架周围的臂上。 框架围绕中心轴旋转,并且中心轴沿着要切割的沟槽的方向沿水平方向移动。 主切割机之间是铰刀。 每个主要和每个铰刀切割器设置有固定到外表面的多个间隔开的压头,并且每个压头具有端点,并且在施加距离“P”的工作力时可适应于穿透岩石表面,并且其中压头 端点间隔不大于7P的距离。
    • 6. 发明授权
    • Geophone implantation system
    • 地音检波器植入系统
    • US5206840A
    • 1993-04-27
    • US703507
    • 1991-06-17
    • David C. CobbsJames H. Cobbs
    • David C. CobbsJames H. Cobbs
    • G01V1/16G01V1/52
    • G01V1/52G01V1/16Y10S181/401
    • The method of implanting a geophone in the earth including the steps of drilling a borehole in the earth, pumping grout into the borehole, pumping a geophone down the interior of a cylindrical pipe positioned in the borehole, the end of the pipe being adjacent the desired point of implantation of the geophone, and pumping additional grout into the borehole to completely surround the geophone and allow the grout to solidify. In one embodiment, a tubular drill pipe having a severable drill bit at the lower end is first used to drill a borehole, after which the drill bit is hydraulically severed from the tubular drill pipe and the grout and the geophone are pumped down into the hole through the interior of the drill pipe.
    • 将地震检波器植入地球的方法包括在地球上钻井的步骤,将砂浆泵送到钻孔中,将地震检波器沿着定位在钻孔中的圆柱形管道的内部抽吸,管道的端部邻近所需的 地震检波器的注入点,并将额外的灌浆泵送到钻孔中,以完全地围绕地震检波器,并允许水泥浆凝固。 在一个实施例中,在下端具有可分割钻头的管状钻杆首先用于钻孔,此后钻头从管状钻杆液压切断并且砂浆和地震检波器被泵送到孔中 通过钻杆的内部。
    • 7. 发明授权
    • Liner for large diameter borehole
    • 内径大的钻孔
    • US4178110A
    • 1979-12-11
    • US838745
    • 1977-10-03
    • James H. Cobbs
    • James H. Cobbs
    • E02D5/38E21B17/10E21B33/14E02D5/00
    • E02D5/38E21B17/1035E21B33/14
    • A means of anchoring a lining of low flexural rigidity with grout into a borehole drilled in the earth, which comprises a relatively thin-walled cylinder which may be composed of steel, elastomeric or plastic material of selected diameter, which is less than that of the borehole. A plurality of keys, each having one end bonded to the wall of the cylinder, extend outwardly, and have an enlarged head portion which is adapted to be bonded to the grout, which will fill the annular space between the cylinder and the borehole. A plurality of vertically spaced support rings surround the cylinder and are attached to the cylinder by means of a plurality of keys. The support rings are supported and spaced apart by means of circumferentially spaced rods, which are attached at their ends to the support rings and are guided at intermediate positions by keys which are locked to the cylinder.
    • 一种将具有水泥浆的低抗弯刚度衬砌锚固在钻孔中的钻孔的方法,其中包括一个相对薄壁的气缸,其可以由选择直径的钢,弹性体或塑料材料组成,该材料小于 钻孔。 每个具有一个端部连接到气缸壁的多个键向外延伸,并且具有扩大的头部,该头部适于粘结到灌浆,该灌浆将填充圆筒和钻孔之间的环形空间。 多个垂直间隔的支撑环围绕气缸并通过多个键附接到气缸。 支撑环通过周向隔开的杆被支撑并间隔开,所述杆在其端部附接到支撑环,并且通过锁定到气缸的键在中间位置处被引导。
    • 8. 发明授权
    • Drill pipe joint
    • 钻管接头
    • US4099745A
    • 1978-07-11
    • US784288
    • 1977-04-04
    • James H. Cobbs
    • James H. Cobbs
    • E21B17/043F16L15/00F16L35/00
    • F16L15/006E21B17/043Y10S285/913Y10S285/914Y10T403/5746Y10T403/66Y10T403/68
    • A tool joint for drill pipe which is particularly well adapted for large diameter drill pipe, comprises a pin section and a box section. Each section of the tool joint is adapted at a first end to be attached to the drill pipe by welding, or threads, as is conventionally done. The principal part of the tool joint is of larger diameter than the pipe and includes a plurality of longitudinal, circumferentially-spaced tongues and grooves in the form of a jaw clutch. The tongues in the pin section match the grooves in the box section and vice versa. Means are provided to polarize the tongues and grooves so that they fit together in only one angular position. A tubular extension on the second end of the pin section is adapted to fit into a bored opening or socket in the second end of the box section. O rings or other means, are provided to seal the tubular extension into the bored opening. The outer circumferential surface of the enlarged portions of the tool joint sections are threaded with a selected, uniform diameter, thread. A threaded collar is screwed over the full threaded section. This locks the two tool joint sections in tension, while the tongues and grooves provide full torque transmitting capacity of the drill pipe.
    • 一种特别适用于大直径钻杆的钻杆工具接头,包括销部分和箱体部分。 工具接头的每个部分在第一端被适配以通过焊接或螺纹附接到钻杆,如通常所做的那样。 工具接头的主要部分具有比管道更大的直径,并且包括多个形式为颚式离合器的纵向,周向间隔开的舌状物和凹槽。 销部分中的舌头匹配盒部分中的凹槽,反之亦然。 提供了用于使舌片和凹槽极化的装置,使得它们仅在一个角度位置配合在一起。 在销部分的第二端上的管状延伸部适于装配在盒部分的第二端中的钻孔或插座中。 O形环或其他装置被提供以将管状延伸部密封到钻孔中。 工具接头部分的扩大部分的外圆周表面以选定的均匀直径的螺纹进行螺纹连接。 螺纹套环拧在整个螺纹部分上。 这样就可以使两个工具接头部分处于张紧状态,同时舌部和沟槽提供了钻杆的全扭矩传递能力。
    • 9. 发明授权
    • Method of installing a liner in a large diameter borehole
    • 在大直径钻孔中安装衬套的方法
    • US4191492A
    • 1980-03-04
    • US947011
    • 1978-09-29
    • James H. Cobbs
    • James H. Cobbs
    • E02D5/38E02D5/66E21B17/10E21B33/14E21D5/00E21D11/04E21D9/00
    • E02D5/665E02D5/38E21B17/1035E21B33/14E21D5/00
    • A means of anchoring a lining of low flexural rigidity with grout into a borehole drilled in the earth, which comprises a relatively thin-walled cylinder which may be composed of steel, elastomeric or plastic material of selected diameter, which is less than that of the borehole. A plurality of keys, each having one end bouded to the wall of the cylinder, extend outwardly, and have an enlarged head portion which is adapted to be bonded to the grout, which will fill the annular space between the cylinder and the borehole. A plurality of vertically spaced support rings surround the cylinder and are attached to the cylinder by means of a plurality of keys. The support rings are supported and spaced apart by means of circumferentially spaced rods, which are attached at their ends to the support rings and are guided at intermediate positions by keys which are locked to the cylinder.
    • 一种将具有水泥浆的低抗弯刚度衬砌锚固在钻孔中的钻孔的方法,其中包括一个相对薄壁的气缸,其可以由选择直径的钢,弹性体或塑料材料组成,该材料小于 钻孔。 每个具有一个端部的多个键被压到气缸的壁上,向外延伸,并且具有扩大的头部,该头部适于粘结到灌浆部,该灌浆部将填充圆筒和钻孔之间的环形空间。 多个垂直间隔的支撑环围绕气缸并通过多个键附接到气缸。 支撑环通过周向隔开的杆被支撑并间隔开,所述杆在其端部附接到支撑环,并且通过锁定到气缸的键在中间位置处被引导。
    • 10. 发明授权
    • Multi-element packer
    • 多元包装机
    • US3659648A
    • 1972-05-02
    • US3659648D
    • 1970-12-10
    • JAMES H COBBS
    • COBBS JAMES H
    • E21B33/12E21B33/128E21B23/00
    • E21B33/1216E21B33/128
    • A multi-element packer for closing a borehole including a tubular inner mandrel, a cylindrical member at one end of the mandrel and a coupling plate at the other end, an outer mandrel coaxially positioned over the inner mandrel providing an annular passageway between the two, an annular piston positioned in the cylinder member displaced by fluid pressure applied to the cylinder member, and a plurality of tubular elastomer elements positioned on the outer mandrel between the piston and the coupling plate, the elastomer elements being expanded by force of the piston.
    • 一种用于封闭钻孔的多元件封隔器,包括管状内心轴,在心轴的一端处的圆柱形构件和在另一端的联接板,同轴地定位在内心轴上方的外心轴,其在两者之间提供环形通道, 位于气缸构件中的环形活塞通过施加到气缸构件的流体压力而移动,以及多个管状弹性体元件,其定位在活塞和联接板之间的外心轴上,弹性体元件通过活塞的力而膨胀。