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公开(公告)号：US20140365133A1
公开(公告)日：2014-12-11
申请号：US14290187
申请日：2014-05-29
IPC分类号： G01V1/28
CPC分类号： G01V1/50
摘要： Disclosed herein is method of computing formation attributes from acoustic measurements in a borehole. The acoustic measurements can be made by operating an acoustic source at multiple frequencies to excite the formation and operating receivers at multiple, longitudinally spaced receiver stations to receive acoustic energy from the formation. The method can include: deriving phase data from the spectrum of received acoustic signals; unwrapping phase information of the phase spectrum data; determining two or more values of difference of phase between acoustic signals at each of a range of frequencies each based on a single generated signal received at two or more pairs of adjacent said receiver stations; generating a value of slope of phase difference values; and in any case of slope ambiguity, unwrapping phase difference information and deriving a dominant slope, at each frequency, from which slowness of the acoustic signal in the formation can be derived.
摘要翻译： 这里公开的是在钻孔中从声学测量计算地层属性的方法。 可以通过在多个频率处操作声源来激发声学测量，以激励在多个纵向间隔的接收站处的接收机的形成和操作以从地层接收声能。 该方法可以包括：从接收的声信号的频谱中导出相位数据; 展开相位谱数据的相位信息; 确定每个频率范围中的每个声频信号之间的相位差的两个或更多个值，其基于在两个或更多对相邻的所述接收机站处接收的单个产生的信号; 产生相位差斜率值; 并且在任何情况下的斜率模糊度，在每个频率处展开相位差信息并导出主斜率，从中可以导出地层中的声信号的慢度。
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公开(公告)号：US20140238660A1
公开(公告)日：2014-08-28
申请号：US14172331
申请日：2014-02-04
IPC分类号： E21B33/00
CPC分类号： E21B33/00 , E21B33/126 , E21B2033/005
摘要： A downhole seal element (10) comprises a cup portion (11) formed of or including a resiliently deformable material. The cup portion (11) extends between on the one hand a nose part (12) comprising an annulus intended for sealingly mounting the seal element on a mandrel (22) and on the other hand a skirt (13), the seal element flaring in shape between the nose part (12) and the skirt (13). The skirt includes extending therefrom away from the nose part (12) a plurality of elongate, flexible limbs (18) that are spaced at intervals about the skirt (13).
摘要翻译： 井下密封元件（10）包括由可弹性变形的材料形成或包括可弹性变形材料的杯部（11）。 杯部分（11）一方面在包括用于将密封元件密封地安装在心轴（22）上的环的鼻部部分（12）之间延伸，另一方面在裙部（13）上延伸，密封元件 鼻部（12）和裙部（13）之间的形状。 所述裙部包括从所述鼻部部分（12）延伸出多个细长的柔性肢体（18），所述多个细长的柔性肢体（18）围绕所述裙部（13）间隔开。
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公开(公告)号：US08286710B2
公开(公告)日：2012-10-16
申请号：US12604214
申请日：2009-10-22
CPC分类号： E21B21/10 , E21B2034/005
摘要： A valve assembly (10) comprises a drillpipe (11) defining a hollow, generally cylindrical interior having secured therein a valve member (12) that is moveable between an open position, permitting passage of an object through the valve (10), and a closed position preventing passage of fluids along the drillpipe (11). A resiliently contractile arm (17) interconnects the valve member (12) and the drillpipe (11) so as to urge the valve member (12) towards the closed position and such that when an object passes along the drillpipe (11) and engages the valve member (12) or the arm (17) the valve member (12) occupies the open position.
摘要翻译： 阀组件（10）包括钻杆（11），所述钻杆（11）限定中空的大致圆柱形的内部，其中固定有阀构件（12），所述阀构件可在允许物体通过所述阀（10）的打开位置和 闭合位置防止流体沿着钻杆（11）通过。 弹性收缩臂（17）将阀构件（12）和钻杆（11）相互连接，以便将阀构件（12）推向关闭位置，并且使得当物体沿着钻杆（11）通过并且接合 阀构件（12）或臂（17），阀构件（12）占据打开位置。
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34.发明授权Apparatuses and methods for deploying logging tools and signalling in boreholes 有权在钻孔中部署采伐工具和信号的装置和方法公开(公告)号：US07201231B2
公开(公告)日：2007-04-10
申请号：US10639133
申请日：2003-08-12
CPC分类号： E21B47/18
摘要： The apparatus includes a pump for circulating pressurized fluid in a wellbore. A control device controls the pump which a conduit interconnects to the wellbore. A downhole transducer detects changes in fluid pressure at a downhole location and generates signals accordingly. A processor generates actuator commands based on the signals. Actuators activate a downhole tool based on the actuator command. A modulating valve modulates the fluid pressure. A remote transducer detects the pressure remotely from the downhole transducer. The control device causes the pump to generate acoustic signals in the fluid via wave forms which the downhole transducer detects. The modulating valve generates wave forms in the fluid. The control device sends control signals via the fluid to the downhole transducer. Consequently the processor actuates the tools. Following correct actuation the modulating valve generates signals via pressure changes which the remote transducer receives to indicate successful tool deployment.
摘要翻译： 该设备包括用于在井筒中循环加压流体的泵。 控制装置控制导管与井筒相互连接的泵。 井下传感器检测井下位置处的流体压力的变化并相应地产生信号。 处理器根据信号产生执行器命令。 执行器基于执行器命令激活井下工具。 调节阀调节流体压力。 远程传感器从井下传感器远程检测压力。 控制装置使泵通过井下换能器检测的波形在流体中产生声信号。 调节阀在流体中产生波形。 控制装置通过流体将控制信号发送到井下换能器。 因此，处理器致动工具。 在正确致动之后，调节阀通过远程换能器接收的压力变化产生信号，以指示工具部署成功。
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公开(公告)号：US10859724B2
公开(公告)日：2020-12-08
申请号：US14290187
申请日：2014-05-29
IPC分类号： G01V1/50
摘要： Disclosed herein is method of computing formation attributes from acoustic measurements in a borehole. The acoustic measurements can be made by operating an acoustic source at multiple frequencies to excite the formation and operating receivers at multiple, longitudinally spaced receiver stations to receive acoustic energy from the formation. The method can include: deriving phase data from the spectrum of received acoustic signals; unwrapping phase information of the phase spectrum data; determining two or more values of difference of phase between acoustic signals at each of a range of frequencies each based on a single generated signal received at two or more pairs of adjacent said receiver stations; generating a value of slope of phase difference values; and in any case of slope ambiguity, unwrapping phase difference information and deriving a dominant slope, at each frequency, from which slowness of the acoustic signal in the formation can be derived.
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公开(公告)号：US10436021B2
公开(公告)日：2019-10-08
申请号：US14988461
申请日：2016-01-05
IPC分类号： E21B47/12
摘要： Logging tool communication apparatus (10), for carrying out a downhole communication method, comprises rotatable and/or longitudinally reciprocable drill pipe (12) including fixed or capable of being fixed in a co-rotative and/or co-reciprocable relationship at an in-use downhole end an in-use downhole logging tool (27). The logging tool (27) includes a movement sensor (33); and the apparatus (10) includes a motor, at a location remote from the logging tool (27), for causing rotation and/or reciprocation of the drill pipe (12) in a borehole or wellbore (18). The apparatus (10) includes one or more control elements for selectively controlling operation of the motor so as to cause selective rotation and/or reciprocation of the drill pipe (12) which causes movement of the logging tool (27), when fixed to the drill pipe (12), in a manner that is detectable by the movement sensor (33).
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公开(公告)号：US10359533B2
公开(公告)日：2019-07-23
申请号：US13548725
申请日：2012-07-13
申请人： James Roger Samworth
发明人： James Roger Samworth
IPC分类号： G01V3/20
摘要： In a method of processing resistivity log data, two or more resistivity log measurements of differing depths of penetration of an invaded formation are generated. The deepest and shallowest of the resistivity log measurements are combined in accordance with a non-linear combination algorithm that is modulated by a parameter. The value of the parameter used varies in dependence on a comparison between deep and shallow log measurements. The results of the comparison are forward modelled from sample data. A modified log output is generated as a result of combining the deepest and shallowest of the resistivity log measurements in accordance with the non-linear combination algorithm.
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公开(公告)号：US09842581B2
公开(公告)日：2017-12-12
申请号：US14570288
申请日：2014-12-15
发明人： Terence Paul Mayor
CPC分类号： G10K9/121 , G01V1/159 , G01V2210/1299
摘要： A transmitter for an acoustic logging tool includes an elongated housing, an acoustic energy generator, and a driver. The elongate housing defines a hollow interior and supports an acoustic energy generator, which includes four mutually orthogonally orientated bender bars that are electrically driveable to flex within the hollow interior in order to generate pressure-derived waves in a fluid surrounding the transmitter in use. The housing includes one or more transmissive windows via which flexing of the bender bars gives rise to propagation of one or more said waves in a said fluid. The driver electrically drives the bender bars to flex so as selectively to generate monopole, dipole, or quadrupole waves in a said fluid, with the poles of the dipole and quadrupole when generated selectively being aligned with normals to pairs of the bender bars or rotated 45° relative thereto.
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公开(公告)号：US09840884B2
公开(公告)日：2017-12-12
申请号：US14172331
申请日：2014-02-04
IPC分类号： E21B33/126 , E21B21/10 , E21B34/14 , E21B33/00
CPC分类号： E21B33/00 , E21B33/126 , E21B2033/005
摘要： A downhole seal element (10) comprises a cup portion (11) formed of or including a resiliently deformable material. The cup portion (11) extends between on the one hand a nose part (12) comprising an annulus intended for sealingly mounting the seal element on a mandrel (22) and on the other hand a skirt (13), the seal element flaring in shape between the nose part (12) and the skirt (13). The skirt includes extending therefrom away from the nose part (12) a plurality of elongate, flexible limbs (18) that are spaced at intervals about the skirt (13).
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公开(公告)号：US09715615B2
公开(公告)日：2017-07-25
申请号：US13789374
申请日：2013-03-07
CPC分类号： G06K9/00 , E21B49/006 , G01V1/50 , G01V3/36 , G01V3/38 , G06K9/00503
摘要： A method of processing geological log data to construct missing information from destroyed or occluded parts using cues from observed data comprises the steps of: a. in respect of one or more data dimensions associated with missing values in a log data set, decomposing the signal into a plurality of morphological components; and b. morphologically reconstructing the signal such that missing values are estimated.
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