会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 1. 发明授权
    • Directional drilling of a drill string
    • 钻柱的定向钻孔
    • US4807708A
    • 1989-02-28
    • US79780
    • 1986-10-01
    • John ForrestRoger CatherallWilliam StewartRandall J. Pounds
    • John ForrestRoger CatherallWilliam StewartRandall J. Pounds
    • E21B7/06E21B17/10E21B7/08
    • E21B17/1078E21B7/068
    • A method of controlling the direction of a drill bit (3) at the downhole end of a drill string (2) drilling from a surface comprises providing two steerable stabilizers (4, 5) at the downhole end of the drill string (2) at locations spaced apart in the drilling direction and adjusting the orientation of the stabilizers to create reactive forces from the bore hole (6) to deflect the course of the bit (3) in a desired direction. The stabilizers (4, 5) are suitably arranged eccentrically and circumferentially offset by 180.degree..+-.60.degree.. In normal drilling the drill string (2) is rotated such that stabilizers (4, 5) engage the bore hole (6) to support a downhole motor (1) against tilting. When off course drilling is sensed the stabilizers are rotated to a position and stopped from rotation such that drilling forces generate reaction forces to cause a desired change of direction.
    • PCT No.PCT / GB86 / 00727 Sec。 371日期:1987年10月1日 102(e)日期1987年10月1日PCT申请日1986年11月28日PCT公开号 公开号WO87 / 03329 日期:1987年6月4日。一种用于控制钻杆(3)在钻柱(2)从井下钻孔的井下端的方向的方法包括在井下端处提供两个可转向稳定器(4,5) 所述钻柱(2)位于沿钻孔方向间隔开的位置处,并且调节所述稳定器的方向以产生来自所述钻孔(6)的反作用力,以使所述钻头(3)的路线在期望的方向偏转。 稳定器(4,5)适当地偏心地偏置180°+/- 60°。 在正常钻孔中,钻柱(2)旋转,使得稳定器(4,5)与钻孔(6)接合,以支撑井下马达(1)以防止倾斜。 当感测到离心钻井时,稳定器被旋转到一个位置并且停止旋转,使得钻井力产生反作用力以引起期望的方向变化。
    • 2. 发明授权
    • Drill string stabilizer
    • 钻柱稳定器
    • US4844179A
    • 1989-07-04
    • US79779
    • 1987-08-24
    • John ForrestRory TullochWilliam Stewart
    • John ForrestRory TullochWilliam Stewart
    • E21B17/10
    • E21B17/1078
    • A stabilizer sleeve (7) for a drill string, adapted to fit about a down hole motor (1) or a drill string member, is formed with an internally threaded coupling at a lower end for releasable coupling to complimentary threads (8) formed on an upwardly extending intermediate coupling portion (15) of a bottom coupling-nut (3). The coupling-nut (3) is provided with a lower end portion (14) of larger diameter and an upper coupling portion (16) of reduced diameter. The upper coupling portion (16) is conventionally formed with an upwardly tapering form and right-hand thread whereas the intermediate coupling portion (15) is formed with a left-hand thread. The stabilizer sleeve (7) fits about the motor (1) or other body member and above the coupling-nut (3) so that the sleeve (7) may be removed upwardly from the coupling-nut (3).
    • PCT No.PCT / GB86 / 00728 Sec。 371日期1987年8月24日 102(e)日期1987年8月24日PCT提交1986年11月28日PCT公布。 出版物WO87 / 03642 日期:1987年6月18日。一种用于钻柱的稳定器套筒(7),其适于围绕井下电机(1)或钻柱构件,在下端形成有内螺纹联接件,用于可释放地联接 形成在底部联接螺母(3)的向上延伸的中间联接部分(15)上的互补螺纹(8)。 联接螺母(3)设置有较大直径的下端部分(14)和减小直径的上连接部分(16)。 上联接部分(16)通常形成有向上锥形和右旋螺纹,而中间联接部分(15)形成有左旋螺纹。 稳定器套筒(7)围绕马达(1)或其他主体构件并在联接器 - 螺母(3)上方安装,使得套筒(7)可以从联接螺母(3)向上移除。
    • 3. 发明授权
    • Drop ball sub-assembly for a down-hole device
    • 用于井下装置的落球组件
    • US4796704A
    • 1989-01-10
    • US27231
    • 1987-03-04
    • John ForrestWilliam StewartRory Tulloch
    • John ForrestWilliam StewartRory Tulloch
    • E21B21/10E21B34/06E21B34/10
    • E21B34/063E21B21/10Y10T137/1782Y10T137/7849Y10T137/7856
    • A drop-ball sub-assembly comprises a tubular casing (4) defining a flushing fluid flow passage adapted for coupling at one end (3) to an inlet pipe (1) and at the other end (23) to an outlet pipe (24). A drop-ball (17) supporting member (8) is secured within the casing (4) in the flow passage. Apertures (21) are arranged to allow fluid flow past the supporting member (8), and a further aperture (9) supports a blow-out device (13) supporting a drop-ball (17) on a side distal from the end (23). The blow-out device (13) and the apertures (21,9) are such that at a first, lower fluid rate from the inlet (3) to the outlet (23) end, fluid flows through said aperture (21) and the blow-out device is retained, and that at a second, higher flow rate the blow-out device (13) is blown out of the further aperture to release the ball (17) through the further aperture (9). The blow-out device suitably comprises a frangible disc.
    • PCT No.PCT / GB86 / 00409 Sec。 371日期:1987年3月4日 102(e)1987年3月4日PCT PCT日期为1986年7月15日PCT公布。 公开号WO87 / 00572 日期:1987年1月29日。落球子组件包括管状壳体(4),其限定冲洗流体流动通道,其适于在一端(3)与入口管(1)连接并且在另一端(23 )到出口管(24)。 落球(17)支撑构件(8)固定在流道内的壳体(4)内。 孔21被布置成允许流体流过支撑构件(8),并且另外的孔(9)支撑在远离端部的一侧支撑落球(17)的吹出装置(13) 23)。 吹出装置(13)和孔(21,9)使得在从入口(3)到出口(23)的第一较低流体速率结束时,流体流过所述孔(21),并且 吹出装置被保持,并且在第二较高流速下,吹出装置(13)从另外的孔中吹出,以通过另外的孔(9)释放球(17)。 吹出装置适当地包括易碎盘。
    • 4. 发明授权
    • Drilling using downhole drilling tools
    • 钻井使用井下钻具
    • US4775017A
    • 1988-10-04
    • US133062
    • 1987-12-09
    • John ForrestRory TullochWilliam Stewart
    • John ForrestRory TullochWilliam Stewart
    • E21B4/02E21B4/20E21B7/28E21B21/08E21B44/00
    • E21B44/005E21B21/08E21B4/02E21B4/20E21B7/28
    • A downhole motor (19) is mounted in a drill pipe (13) above a hole enlarger (14) intermediate ends of the pipe (13). The motor drives a lower pilot bit (28). A split flow bypass device (24) above the motor (19) allows part of the flow to drive the motor and the remainder to bypass through a central passage, the divided flows rejoining below the motor (19) with a restricted flow through jet nozzles (32) to the hole enlarger cutter (15). Flow passes centrally of the output shaft (26), past a bleed valve (34) bleeding up to 5% to an outer shaft space for lubricating bearings (30), to flow restrictor jet nozzles (33) of the pilot bit (28). In use flow is controlled to drive the motor (19) to drive the pilot bit (28) at desired speed and the drill string is rotated from the rotary platform of a drill rig to drive the hole enlarger (14) so that the hydraulic requirements of the hole enlarger (14) and the pilot bit (28) are met while only allowing sufficient fluid to pass through the motor (19) to give the required output speed at the pilot bit (28).
    • PCT No.PCT / GB87 / 00245 Sec。 371日期1987年12月9日第 102(e)1987年12月9日PCT PCT 1987年4月10日PCT公布。 公开号WO87 / 06300 日期:1987年10月22日。井下电动机(19)安装在管道(13)上方的钻孔管(13)上方,位于管道(13)的中间端部的扩孔器(14)上方。 电机驱动一个较低的导频位(28)。 马达(19)上方的分流式旁路装置(24)允许部分流动驱动马达并且其余部分绕过中心通道,分流的流体以受限制的流动流动通过喷嘴 (32)连接到孔放大器切割器(15)。 流体通过输出轴(26)的中心,经过泄放阀(34)的泄放阀(34),泄漏到用于润滑轴承(30)的外轴空间的5%到导向钻头(28)的限流喷嘴(33) 。 在使用中控制流量以驱动马达(19)以期望的速度驱动导向钻头(28),并且钻柱从钻机的旋转平台旋转以驱动孔扩大器(14),使得液压要求 满足孔扩大器(14)和导向钻头(28),同时仅允许足够的流体通过马达(19)以在导向钻头(28)处给出所需的输出速度。
    • 10. 发明申请
    • System and method for sensing the level and composition of liquid in a fuel tank
    • 用于感测燃料箱中液体的含量和组成的系统和方法
    • US20070000321A1
    • 2007-01-04
    • US11431912
    • 2006-05-10
    • Idir BoudaoudWilliam StewartAlan McCall
    • Idir BoudaoudWilliam StewartAlan McCall
    • G01F23/24
    • G01F23/26G01F23/22G01F23/284
    • In a liquid sensing system, an RF signal is applied to a series-resonant circuit. The coil of the resonant circuit is placed proximate to a fuel tank, causing electromagnetic radiation to propagate into the fuel space. The fuel acts as an electrical load to the resonant circuit in a manner proportionate to the volume of fuel in the tank and/or to variations in electrical properties of the fuel itself. The loading effect of the fuel can change the resonant frequency and/or the Q of the resonant circuit. The loading effect of the fuel is determined by monitoring a change in one or more electrical parameters associated with the excited resonant circuit, such as a voltage across the resistor in the resonant circuit. Changes in this voltage are analyzed by a controller, the result of which is used to output a value indicative of level and/or composition of the fuel.
    • 在液体感测系统中,将RF信号施加到串联谐振电路。 谐振电路的线圈靠近燃料箱放置,导致电磁辐射传播到燃料空间。 燃料以与罐中燃料的体积成比例的方式和/或燃料本身的电气特性的变化作为对谐振回路的电负载。 燃料的负载效应可以改变谐振电路的谐振频率和/或Q。 通过监测与激发的谐振电路相关联的一个或多个电参数的变化(例如谐振电路中的电阻器两端的电压)来确定燃料的负载效果。 该电压的变化由控制器分析,其结果用于输出指示燃料的水平和/或组成的值。