Acoustic source apparatus, systems, and methods
    2.
    发明授权
    Acoustic source apparatus, systems, and methods 有权
    声源设备,系统和方法

    公开(公告)号:US09158014B2

    公开(公告)日:2015-10-13

    申请号:US14386671

    申请日:2012-04-09

    IPC分类号: G01V1/40 G01V1/143

    CPC分类号: G01V1/143 G01V2210/1299

    摘要: In some embodiments, an apparatus and a system, as well as a method and an article, may operate to rotate a rotatable driving member having at least one driving lobe, and to periodically contact at least one cam on a unitary driven member with the at least one driving lobe during rotation of the rotatable driving member, to set the driven member in motion. This motion can be used to launch an acoustic wave along an axis substantially orthogonal to the axis of rotation of the driving member, where the driving member disposed completely within the driven member. The signature of the acoustic wave can be at least partially determined by the profile of the cam and the rotation rate of the driving member. Additional apparatus, systems, and methods are disclosed.

    摘要翻译: 在一些实施例中,装置和系统以及方法和制品可以操作以旋转具有至少一个驱动凸角的可旋转驱动构件,并且周期性地接触单一从动构件上的至少一个凸轮, 在可旋转驱动构件的旋转期间至少一个驱动凸轮,以使从动构件运动。 该运动可以用于沿着基本上垂直于驱动构件的旋转轴线的轴线发射声波,其中驱动构件完全设置在从动构件内。 声波的签名可以至少部分地由凸轮的轮廓和驱动构件的旋转速度决定。 公开了附加装置,系统和方法。

    Borehole acoustic noise measurement and processing

    公开(公告)号:US10215884B2

    公开(公告)日:2019-02-26

    申请号:US14237240

    申请日:2011-08-17

    申请人: Burkay Donderici

    发明人: Burkay Donderici

    摘要: In some embodiments, an apparatus and a system, as well as a method and an article, may operate to acquire acoustic noise data by one or more receivers, the acoustic noise provided by a passive source comprising a down hole tool body moving within a borehole, and/or a positioning device or a measurement device attached to the tool body. Additional operations may include processing the acoustic noise data to determine receiver calibration parameters, and/or formation properties. Additional apparatus, systems, and methods are disclosed.

    SLEEVE EXCITATION FOR RANGING MEASUREMENTS USING ELECTRODE SOURCES

    公开(公告)号:US20180230794A1

    公开(公告)日:2018-08-16

    申请号:US15534378

    申请日:2016-09-26

    IPC分类号: E21B47/022 E21B47/09 G01V3/26

    摘要: The structural integrity and reliability of a downhole tool or mandrel may be improved by implementation of a design and configuration that does not require several separate components to be coupled together. An insulating sleeve is wrapped around the outside of a mandrel. Electrodes, both transmit and return, are wrapped around the insulating sleeve. The outside diameter of the mandrel is increased but the structural integrity and reliability of the mandrel is maintained as no gap sub is used to electrically isolate the electrodes from the mandrel. The insulating sleeve may be tapered at the edges to prevent excessive wear on the sleeve. The insulating sleeve may also extend the full distance between the electrodes to provide even more insulation.

    Imaging and sensing of subterranean reservoirs

    公开(公告)号:US09612355B2

    公开(公告)日:2017-04-04

    申请号:US13809100

    申请日:2010-07-09

    IPC分类号: G01V3/30

    CPC分类号: G01V3/30

    摘要: Various embodiments include apparatus and methods of sensing and/or mapping a subterranean reservoir. In various embodiments, arrangements of electromagnetic sensors are disposed relative to a subterranean reservoir such that a signal received by electromagnetic sensors of one arrangement, in response to activation of an electromagnetic transmitter, can be analyzed to map the subterranean reservoir. Additional apparatus, systems, and methods are disclosed.

    Multi-array laterolog tools and methods with split monitor electrodes
    7.
    发明授权
    Multi-array laterolog tools and methods with split monitor electrodes 有权
    具有分割监视器电极的多阵列后置工具和方法

    公开(公告)号:US09081114B2

    公开(公告)日:2015-07-14

    申请号:US14356139

    申请日:2012-07-13

    IPC分类号: G01V3/02 G01V3/24

    CPC分类号: G01V3/24

    摘要: Multi-array laterolog tool systems and methods acquire a set of array measurements sufficient to provide laterolog tool measurements of differing array sizes. Such systems and method offer multiple depths of investigation while offering greater measurement stability in borehole environments having high resistivity contrasts. In at least some system embodiments, a wireline or LWD tool body has a center electrode positioned between multiple pairs of guard electrodes and a pair of return electrodes. At least some of the guard electrodes are positioned between component electrodes of associated split monitor electrodes that enable more accurate measurement of the guard electrode potential. The tool's electronics provide a current from the center electrode to the pair of return electrodes and currents from each pair of guard electrodes to the pair of return electrodes. Each of the currents may be distinguishable by frequency or distinguishable by some other means.

    摘要翻译: 多阵列后验工具系统和方法获取足够的阵列测量集,以提供不同阵列大小的后者工具测量。 这种系统和方法提供多个调查深度,同时在具有高电阻率对比度的钻孔环境中提供更大的测量稳定性。 在至少一些系统实施例中,有线或LWD工具主体具有位于多对保护电极和一对返回电极之间的中心电极。 至少一些保护电极位于相关联的分离监视器电极的组件电极之间,从而能够更准确地测量保护电极电势。 工具的电子器件提供从中心电极到一对返回电极的电流以及从每对保护电极到一对返回电极的电流。 每个电流可以通过频率区分或通过某种其他方式可区分。

    MULTI -AXIAL INDUCTION BOREHOLE IMAGER
    8.
    发明申请
    MULTI -AXIAL INDUCTION BOREHOLE IMAGER 有权
    多元感应孔洞像

    公开(公告)号:US20150153474A1

    公开(公告)日:2015-06-04

    申请号:US14411497

    申请日:2012-06-29

    IPC分类号: G01V3/38 E21B47/12 G01V3/28

    摘要: Various systems and methods are disclosed for implementing and using a multi-axial induction borehole imaging tool that includes emitters that induce, at azimuthally-spaced positions on a borehole wall, a plurality of fields having components in three non-coplanar directions within a formation. The tool also includes directionally sensitive inductive sensors that sense the components caused by each of the one or more inductive emitters, and a downhole controller that processes signals received from the directionally sensitive inductive sensors to provide a set of measurements representative of an impedance tensor at each position.

    摘要翻译: 公开了用于实现和使用多轴感应井眼成像工具的各种系统和方法,所述多轴感应井眼成像工具包括在钻孔壁上的方位角间隔位置处诱导在地层内具有三个非共面方向的分量的多个场的发射器。 该工具还包括感测由一个或多个感应发射器中的每个感应发射器引起的部件的定向敏感感应传感器,以及处理从方向感应感应传感器接收的信号的井下控制器,以提供表示每个 位置。

    LOOK-AHEAD OF THE BIT APPLICATIONS
    9.
    发明申请
    LOOK-AHEAD OF THE BIT APPLICATIONS 有权
    前瞻性的应用程序

    公开(公告)号:US20140249754A1

    公开(公告)日:2014-09-04

    申请号:US14110683

    申请日:2011-11-15

    IPC分类号: G01V3/38 G01V3/26

    摘要: Various embodiments include apparatus and methods of operation with respect to well logging. Apparatus and methods can include a tool having an arrangement of spaced apart transmitter antennas and receiver antennas in transmitter-receiver antenna pairs to make shallow measurements and deep measurements. The signals acquired from the shallow measurements and deep measurements can be processed to provide a look-ahead signal in a drilling operation. The transmitter and receiver antennas can be oriented to cancel or substantially cancel out signals from layers between the transmitter antenna and the receiver antenna in response to the transmitter being operated downhole in a well. Additional apparatus, systems, and methods are disclosed.

    摘要翻译: 各种实施例包括关于测井的装置和操作方法。 装置和方法可以包括在发射机 - 接收机天线对中具有间隔开的发射器天线和接收天线的布置的工具,以进行浅测量和深度测量。 从浅测量和深度测量获取的信号可以被处理以在钻井操作中提供一个预先信号。 响应于在井中井下操作的发射器,发射器和接收器天线可以被定向为抵消或基本上抵消来自发射器天线和接收器天线之间的层的信号。 公开了附加装置,系统和方法。