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公开(公告)号：US06868901B2
公开(公告)日：2005-03-22
申请号：US10096362
申请日：2002-03-12
申请人： Guy Harvey Mason , William Peter Stuart-Bruges , Thomas Lempriere Searight , Philip Anton Strong , Timothy George Boxell , Michael Andrew Yuratich , Alan Thomas Fraser
发明人： Guy Harvey Mason , William Peter Stuart-Bruges , Thomas Lempriere Searight , Philip Anton Strong , Timothy George Boxell , Michael Andrew Yuratich , Alan Thomas Fraser
CPC分类号： E21B23/01 , E21B29/005 , Y10T409/304424
摘要： A tubular cutting tool includes two or more sets of electrically actuated retractable anchoring legs mounted at longitudinally spaced apart locations and an electrically driven rotary cutting head with a retractable cutting blade. The anchoring legs can be arranged such that they are capable of compensating for variations in the internal radii of the tubular to be cut, thereby ensuring that the cutting tool is clamped rigidly in position.
摘要翻译： 一种管状切割工具包括两组或多组电动致动的伸缩式锚固腿，其安装在纵向间隔开的位置处，以及具有可缩回切割刀片的电动旋转切割头。 锚定腿可以被布置成使得它们能够补偿要切割的管状物的内部半径的变化，从而确保切割工具刚性地被夹紧就位。
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公开(公告)号：US06457357B1
公开(公告)日：2002-10-01
申请号：US09600828
申请日：2000-09-25
IPC分类号： G01N916
CPC分类号： G01N9/20
摘要： A fluid density measurement device includes a float (12) and a weight (14), each mounted on links (16) for essentially vertical movement. A crank (22) is mounted above the float and weight and is connected to them,by a float link (24) and a counterweight link (28) to convert the forces from the float and the forces from the weight to rotational forces on the crank acting in opposite directions. The position adopted by the crank will be dependent upon the density of the fluid in which the instrument is immersed. The links (16) are arranged so that a good approximation to straight line motion is obtained at the centre of the float and the weight.
摘要翻译： 流体密度测量装置包括浮子（12）和重物（14），每个安装在链节（16）上，用于基本垂直运动。 曲柄（22）安装在浮子和重物上方，并通过浮子连杆（24）和对重连杆（28）连接到曲柄（22）上，以将来自浮子的力和从重量的力转换成旋转力 曲柄在相反方向上起作用。 曲柄所采用的位置将取决于仪器浸入液体的密度。 链节（16）布置成使得在浮子和重量的中心处获得对直线运动的良好近似。
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公开(公告)号：US20100126711A1
公开(公告)日：2010-05-27
申请号：US12621169
申请日：2009-11-18
申请人： John BUSS , Charles William Donkin , Ian Hitchcock , William Peter Stuart Bruges , Roy Mowatt , James Ratcliffe , Anthony Webb
发明人： John BUSS , Charles William Donkin , Ian Hitchcock , William Peter Stuart Bruges , Roy Mowatt , James Ratcliffe , Anthony Webb
IPC分类号： E21B23/00
CPC分类号： E21B47/10 , E21B33/126
摘要： A modulator is disclosed for creating a pressure pulse in a fluid-filled well. The modulator comprises a tool body on which a plurality of extendable arms are mounted. The arms may be retracted into a stowed position substantially adjacent the tool body, or may be extended to meet the wall of the borehole. The arms are preferably resilient bowsprings that may be flexed outwards from the tool by means of an actuator pushing on at least one end of the springs. A flexible valve sleeve or bag is suspended between the arms and cooperates with a valve mounted adjacent the sleeve on the tool body. The valve sleeve creates a fluid-flow path through the valve, and in operation, the valve closes one end of the valve sleeve to create the pressure pulse. Sealing of the valve sleeve against the wall of the well is a result of the fluid pressure inflating the sleeve against the well wall. As a result, sealing takes place over an extended area of the bag and is dynamically responsive to changes in fluid flow or pressure.
摘要翻译： 公开了用于在流体填充的井中产生压力脉冲的调制器。 调制器包括一个工具主体，多个可伸缩臂安装在该工具主体上。 臂可以缩回到基本上邻近工具主体的收起位置，或者可以延伸以满足钻孔的壁。 臂优选地是弹性弓形，其可以通过推动弹簧的至少一端的致动器从工具向外弯曲。 柔性阀套或袋悬挂在臂之间并与安装在工具主体上的套筒相邻的阀配合。 阀套产生通过阀的流体流动路径，并且在操作中，阀关闭阀套的一端以产生压力脉冲。 将阀套密封在井的壁上是由于流体压力使套筒相对于井壁膨胀的结果。 结果，密封发生在袋的延伸区域上并且动态地响应于流体流动或压力的变化。
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公开(公告)号：US08693284B2
公开(公告)日：2014-04-08
申请号：US12513278
申请日：2007-10-19
IPC分类号： E21B47/18
CPC分类号： E21B47/18 , E21B47/187
摘要： An apparatus for creating pressure pulses in the fluid of a bore hole is described. The preferred embodiment takes the form of a mud pulser apparatus having a signalling valve controlled by a variable pilot valve. The forces on the signalling valve are balanced and controlled by the flow of mud through the variable orifice of the pilot valve. The arrangement is such as to act like a hydraulic amplifier, and results in the signalling valve being compensated for variable flow rates. In the preferred embodiment, the pilot valve has rotary vanes that allow it to be self-cleaning.
摘要翻译： 描述了一种用于在钻孔的流体中产生压力脉冲的装置。 优选实施例采用具有由可变先导阀控制的信号阀的泥浆脉冲发生器装置的形式。 信号阀上的力通过先导阀的可变孔的泥浆流平衡和控制。 该布置使得像液压放大器那样起作用，并导致信号阀被补偿可变流量。 在优选实施例中，先导阀具有允许其自清洁的旋转叶片。
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公开(公告)号：US20100157735A1
公开(公告)日：2010-06-24
申请号：US12513278
申请日：2007-10-19
IPC分类号： E21B47/18
CPC分类号： E21B47/18 , E21B47/187
摘要： An apparatus for creating pressure pulses in the fluid of a bore hole is described. The preferred embodiment takes the form of a mud pulser apparatus (10) having a signalling valve controlled by a variable pilot valve (34). The forces on the signalling valve are balanced and controlled by the flow of mud through the variable orifice of the pilot valve. The arrangement is such as to act like a hydraulic amplifier, and results in the signalling valve being compensated for variable flow rates. In the preferred embodiment, the pilot valve has rotary vanes that allow it to be self-cleaning.
摘要翻译： 描述了一种用于在钻孔的流体中产生压力脉冲的装置。 优选实施例采用具有由可变先导阀（34）控制的信号阀的泥浆泵装置（10）的形式。 信号阀上的力通过先导阀的可变孔的泥浆流平衡和控制。 该布置使得像液压放大器那样起作用，并导致信号阀被补偿可变流量。 在优选实施例中，先导阀具有允许其自清洁的旋转叶片。
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公开(公告)号：US07044219B2
公开(公告)日：2006-05-16
申请号：US10476919
申请日：2002-05-03
CPC分类号： E21B17/07 , E21B47/011
摘要： A shock absorbing tool for use in pipelines and oil wells, particularly in combination with perforation guns comprises a central mass supported on two springs between the end terminal members. The shock wave is absorbed in the free oscillation of the mass. The mass is constituted by a piston assembly. A steel rope permits the shock absorbing tool to be maneuvered within the bore hole without damage to the springs.
摘要翻译： 一种用于管道和油井的减震工具，特别是与穿孔枪组合在一起，包括支撑在端部端子构件之间的两个弹簧上的中心质量。 冲击波在质量的自由振荡中被吸收。 质量由活塞组件构成。 钢丝绳允许减震工具在钻孔内被操纵而不损坏弹簧。
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公开(公告)号：US06842697B1
公开(公告)日：2005-01-11
申请号：US09936790
申请日：2000-03-15
CPC分类号： G01V3/265
摘要： A method and apparatus for measuring the properties such as permeability of the rock surrounding a borehole in which a directional seismic or sonic signal is generated downhole and propagated into the surrounding formation to generate an electrokinetic signal and the focus of the seismic signal is moved in three dimensions in the surrounding rock by physically moving the source or by having two seismic sources which generate oscillating seismic signals at different frequencies and the focus of the seismic signal is varied by wave interference or wave interaction.
摘要翻译： 用于测量诸如围绕钻孔的岩石的渗透性的特性的方法和装置，其中定向地震或声音信号在井下生成并传播到周围地层中以产生电动信号，并且地震信号的焦点在三个 通过物理移动源或通过具有两个产生振荡的地震信号在不同频率的地震信号并且地震信号的焦点由波浪干扰或波浪相互作用而变化的周围岩石的尺寸。
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公开(公告)号：US08453744B2
公开(公告)日：2013-06-04
申请号：US12621169
申请日：2009-11-18
申请人： John Buss , Charles William Donkin , Ian Hitchcock , William Peter Stuart Bruges , Roy Mowatt , James Ratcliffe , Anthony Webb
发明人： John Buss , Charles William Donkin , Ian Hitchcock , William Peter Stuart Bruges , Roy Mowatt , James Ratcliffe , Anthony Webb
CPC分类号： E21B47/10 , E21B33/126
摘要： A modulator is disclosed for creating a pressure pulse in a fluid-filled well. The modulator comprises a tool body on which a plurality of extendable arms are mounted. The arms may be retracted into a stowed position substantially adjacent the tool body, or may be extended to meet the wall of the borehole. The arms are preferably resilient bowsprings that may be flexed outwards from the tool by means of an actuator pushing on at least one end of the springs. A flexible valve sleeve or bag is suspended between the arms and cooperates with a valve mounted adjacent the sleeve on the tool body. The valve sleeve creates a fluid-flow path through the valve, and in operation, the valve closes one end of the valve sleeve to create the pressure pulse. Sealing of the valve sleeve against the wall of the well is a result of the fluid pressure inflating the sleeve against the well wall. As a result, sealing takes place over an extended area of the bag and is dynamically responsive to changes in fluid flow or pressure.
摘要翻译： 公开了用于在流体填充的井中产生压力脉冲的调制器。 调制器包括一个工具主体，多个可伸缩臂安装在该工具主体上。 臂可以缩回到基本上邻近工具主体的收起位置，或者可以延伸以满足钻孔的壁。 臂优选地是弹性弓形，其可以通过推动弹簧的至少一端的致动器从工具向外弯曲。 柔性阀套或袋悬挂在臂之间并与安装在工具主体上的套筒相邻的阀配合。 阀套产生通过阀的流体流动路径，并且在操作中，阀关闭阀套的一端以产生压力脉冲。 将阀套密封在井的壁上是由于流体压力使套筒相对于井壁膨胀的结果。 结果，密封发生在袋的延伸区域上并且动态地响应于流体流动或压力的变化。
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公开(公告)号：US06639404B1
公开(公告)日：2003-10-28
申请号：US10018109
申请日：2001-12-13
IPC分类号： G01V300
CPC分类号： G01F1/712
摘要： A device for measuring the rate of flow of fluids in a conduit is positioned within the conduit and includes a tube having two spaced part detectors which are separated by shielding units either side of them which are not in electrical contact with the detector units, when a variable electrical field is applied between the walls of the conduit and the shielding units the detector units detect discontinuities in the fluid, e.g., by detecting changes in the ratio of voltage to current and by correlating the movement of the discontinuities between the detector units, it is possible to measure the rate of flow of the fluid.
摘要翻译： 用于测量导管中的流体流速的装置位于导管内，并且包括具有两个间隔部分检测器的管，该隔离部分检测器由它们的两侧的屏蔽单元隔开，所述两个隔离部分检测器当它们不与检测器单元电接触时， 可变电场施加在导管的壁和屏蔽单元之间，检测器单元检测流体中的不连续性，例如通过检测电压与电流的比率的变化，并通过将检测器单元之间的不连续性的移动相关联 可以测量流体的流速。
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