-
公开(公告)号：US20140202705A1
公开(公告)日：2014-07-24
申请号：US14224312
申请日：2014-03-25
CPC分类号： E21B41/0085 , E21B43/086
摘要： The present invention is directed to methods for harnessing flow-induced electrostatic energy in a tubular length and using this energy to power electrical devices (e.g., flowmeters, electrically-actuated valves, etc.). The present invention is also directed to corresponding systems through which such methods are implemented.
-
公开(公告)号：US20140210307A1
公开(公告)日：2014-07-31
申请号：US14224328
申请日：2014-03-25
IPC分类号： H02N3/00
CPC分类号： H02N3/00 , E21B41/0085 , E21B43/086
摘要： The present invention is directed to methods for harnessing flow-induced electrostatic energy in a tubular length and using this energy to power electrical devices (e.g., flowmeters, electrically-actuated valves, etc.). The present invention is also directed to corresponding systems through which such methods are implemented.
摘要翻译： 本发明涉及用于以管状长度利用流动感应静电能并利用该能量为电气装置（例如，流量计，电致动阀等）供电的方法。 本发明还涉及实现这些方法的相应系统。
-
公开(公告)号：US20120273234A1
公开(公告)日：2012-11-01
申请号：US13094954
申请日：2011-04-27
CPC分类号： E21B43/086 , E21B41/0085 , H02N1/04
摘要： The present invention is directed to processes (methods) for harnessing flow-induced electrostatic energy in an oil and/or gas well and using this energy to power electrical devices (e.g., flowmeters, electrically-actuated valves, etc.) downhole. The present invention is also directed to corresponding systems through which such methods are implemented.
-
4.发明申请FLOW-INDUCED ELECTROSTATIC POWER GENERATOR FOR DOWNHOLE USE IN OIL AND GAS WELLS 有权流动诱发的静电发电机，用于油气井下的井下使用公开(公告)号：US20120273235A1
公开(公告)日：2012-11-01
申请号：US13094964
申请日：2011-04-27
CPC分类号： E21B41/0085
摘要： The present invention is directed to processes (methods) for harnessing flow-induced electrostatic energy in an oil and/or gas well and using this energy to power electrical devices (e.g., flowmeters, electrically-actuated valves, etc.) downhole. The present invention is also directed to corresponding systems through which such methods are implemented.
摘要翻译： 本发明涉及用于利用油和/或气井中的流动静电能量并利用该能量向井下的电气装置（例如，流量计，电致动阀等）供电的方法（方法）。 本发明还涉及实现这些方法的相应系统。
-
公开(公告)号：US5323852A
公开(公告)日：1994-06-28
申请号：US971527
申请日：1992-11-03
摘要： An auger gravel pack screen or other wellbore device is driven by a workstring which includes a torque-limiting device interposed therein to limit the maximum torque exerted on the screen during augering into a gravel packing in a well bore. The torque-limiting device includes driving and driven mandrels with removable shear pin support parts connected to the mandrels, respectively, and supporting plural shear pins through which driving torque is exerted on the device. An alternate embodiment includes a slip clutch with cooperating lobed clutch members. An axially translatable nut is disposed in a fluid-filled chamber between the mandrels and is operable to permit controlled rotation of the mandrels relative to each other when the limit torque is exceeded to absorb torsional deflection energy built up in the workstring without damaging the workstring or the gravel pack screen.
摘要翻译： 螺旋钻砾石包装屏幕或其他井筒装置由工作串驱动，该工作绳包括插入其中的扭矩限制装置，以限制在螺旋钻进井眼中的砾石填料期间施加在筛网上的最大扭矩。 扭矩限制装置包括驱动和驱动的心轴，其具有分别连接到心轴的可移除的剪切销支撑部分，并且支撑多个剪切销，驱动扭矩通过该剪切销施加在装置上。 一个替代实施例包括具有配合的叶片离合器构件的滑动离合器。 可轴向平移的螺母设置在心轴之间的流体填充室中，并且可操作以允许在超过极限转矩时相对于彼此受控地旋转心轴，以吸收构建在工作系统中的扭转挠度能量而不损坏工作绳或 砾石包装屏幕。
-
公开(公告)号：US5038614A
公开(公告)日：1991-08-13
申请号：US391919
申请日：1989-08-10
摘要： Fluid leakage from a crack or other leakage point and other vibration-generating events in pipes and conduits may be located and analyzed by sensing axial and torsional vibrations and pressure fluctuations created by such events by placing accelerometers and/or strain gauges and pressure sensors on the conduit at selected points. The location of the event may be determined by comparing the travel time of selected pairs of signals such as axial propagated signals as compared with torsional propagated signals as a result in the difference of the acoustic wave speed of axial versus torsional waves. Cross correlation and deconvolution processes are carried out on the measured signals to determine differential signal arrival times at the sensors and to eliminate pipe response signals. An apparatus having axial and torsional vibration sensing accelerometers thereon includes mechanism for clamping the apparatus to the inside wall of the tubing or pipe and sensing the vibratory output signals of the accelerometers to determine the nature of and location of the vibration inducing event.
摘要翻译： 可以通过将加速度计和/或应变计和压力传感器放置在管道和管道上的流体泄漏点和管道和管道中的其他振动产生事件来定位和分析，方法是通过感测由这种事件产生的轴向和扭转振动和压力波动 导管在选定的点。 事件的位置可以通过比较所选择的信号对（例如轴向传播信号）与扭转传播信号的行进时间，从而导致轴向与扭转波的声波速度的差异来确定。 对测量信号进行互相关和去卷积处理，以确定传感器的差分信号到达时间，并消除管道响应信号。 在其上具有轴向和扭转振动感测加速度计的装置包括用于将装置夹持到管道或管道的内壁并感测加速度计的振动输出信号以确定振动诱发事件的性质和位置的机构。
-
公开(公告)号：US5327960A
公开(公告)日：1994-07-12
申请号：US980823
申请日：1992-11-24
CPC分类号： E21B43/04 , E21B34/12 , E21B43/08 , E21B43/10 , E21B2034/005
摘要： A gravel pack screen assembly includes a bit or sub having a flow passage which may accept a wash pipe. The wash pipe may be inserted past a flapper-type closure member which moves to a closed position upon withdrawal of the wash pipe after completion of the installation of the gravel pack assembly. The closure member can be formed of a porous material to permit the flow of liquid through the bit or sub flow passage into the interior of the gravel pack screen but to prevent flow of gravel packing or produced sand into the interior of the screen. The closure member may serve as a backup to a conventional one-way valve and permit additional gravel pack material to be placed in the flow passage upon completion of the gravel pack installation and in the event of early or late failure of the one-way valve.
摘要翻译： 砾石包装屏幕组件包括具有可以接受洗涤管的流动通道的钻头或副。 洗涤管可以插入通过挡板式封闭构件，该封闭构件在完成砾石充填组件的安装之后在洗涤管抽出时移动到关闭位置。 封闭构件可以由多孔材料形成，以允许液体通过钻头或子流动通道进入砾石包装屏幕的内部，但是防止砾石填充或产生的砂子流入筛网的内部。 关闭构件可以用作传统单向阀的备用，并且在砾石充填装置完成时允许附加的砾石包装材料放置在流动通道中，并且在单向阀的早期或晚期故障的情况下 。
-
公开(公告)号：US5320178A
公开(公告)日：1994-06-14
申请号：US987934
申请日：1992-12-08
申请人： H. Mitchell Cornette
发明人： H. Mitchell Cornette
摘要： A sand control screen is installed in a well by interposing the screen in a drillstring having a retrievable bit and drive motor. The screen is drilled into place with the distal end of the drillstring and remains in the wellbore. The drillstring may be disconnected from a bottom hole assembly comprising the screen and the distal end of the drillstring and replaced by a tubing string having a packer or other external seal member interposed therein for sealing one portion of the wellbore from another. The sand control screen has a basepipe with plural apertures temporarily closed plugs which are threadedly or force-fit in the apertures. The plugs may be formed of a meltable or dissolvable fiber reinforced wax, for example, or an active metal which may be dissolved by an acid or caustic solution. The screen may also include a temporary plugging medium such as wax in the interstices of the screen sleeve to prevent accumulation of drilling fluid solids during insertion in the wellbore.
摘要翻译： 通过将筛网插入具有可回收钻头和驱动马达的钻柱中，将防砂屏安装在井中。 将屏幕钻入到钻柱的远端并保留在井眼中。 钻柱可以从包括筛网的底孔组件和钻柱的远端断开，并由插入其中的封隔器或其它外部密封构件的管柱替代，以将井筒的一部分与另一个密封。 防砂屏具有一个具有多个孔的基管，临时封闭的塞子螺纹地或者强力地配合在孔中。 塞子可以由可熔化或可溶解的纤维增强蜡形成，例如可以由酸或苛性碱溶液溶解的活性金属形成。 屏幕还可以包括临时堵塞介质，例如在屏幕套管的间隙中的蜡，以防止钻井液固体在插入井筒期间积聚。
-
公开(公告)号：US5010964A
公开(公告)日：1991-04-30
申请号：US506139
申请日：1990-04-06
申请人： H. Mitchell Cornette
发明人： H. Mitchell Cornette
IPC分类号： E21B43/119
CPC分类号： E21B43/119
摘要： A wellbore perforating apparatus for forming casing or wellbore wall perforations in inclined wellbores includes a perforating gun, a reference unit for determining the high side of the wellbore and a motor for rotating the reference unit and perforating gun to orient the perforation charges at a predetermined angle with respect to the high side and the wellbore axis so as to optimize the angle at which the hydraulic fracture is initiated in the formation. The apparatus includes a motor section with extensible grippers for non-rotatably securing the motor section with respect to the wellbore and for rotating the reference unit and the perforating gun.
摘要翻译： 用于在倾斜井筒中形成套管或井筒壁穿孔的井筒穿孔装置包括穿孔枪，用于确定井筒的高侧的参考单元和用于旋转参考单元和穿孔枪的马达，以将穿孔荷电定向在预定角度 相对于高侧和井眼轴线，以便优化在地层中水力压裂起始的角度。 该装置包括具有可延伸夹持器的马达部分，用于不可旋转地固定马达部分相对于井眼并且用于旋转参考单元和射孔枪。
-
公开(公告)号：US4928759A
公开(公告)日：1990-05-29
申请号：US305250
申请日：1989-02-01
IPC分类号： E21B33/127 , E21B47/10
CPC分类号： E21B47/10 , E21B33/127
摘要： A fluid flow measuring or so-called production logging instrument for fluids produced in a well includes an inflatable packer for forming a seal in the wellbore to require diversion of wellbore fluid through a passage formed in the instrument whereby fluid flow rate and other fluid properties may be measured. The inflatable packer receives pressure fluid from the tubing string and may be remotely controlled to inflate and deflate, at will, through signals conducted from the surface to the instrument by way of a cable extending through the tubing string. The instrument includes a main wellbore fluid flow passage in which a shutoff valve is disposed for controlling the flow of fluid through the passage and which may be automatically closed or opened in response to actuation of the packer seal.
摘要翻译： 用于在井中产生的流体的流体流量测量或所谓的生产测井仪器包括用于在井眼中形成密封件的充气封隔器，以要求井筒流体通过在仪器中形成的通道转移，由此流体流速和其它流体性质可以 被测量。 充气封隔器从管柱接收压力流体，并且可以被远程控制，以便随意地通过经由管柱延伸穿过的电缆从表面传递到仪器的信号来充气和放气。 仪器包括主井筒流体流动通道，其中设置截流阀以控制通过通道的流体流动，并且可以响应于封隔器密封件的致动而自动关闭或打开流体。
-
-
-
-
-
-
-
-
-
搜索结果
20 条记录 (耗时 0.03 秒)
