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29 条记录 (耗时 0.018 秒)

    Micro-Annulus Detection Using Lamb Waves
    3.
    发明申请
    Micro-Annulus Detection Using Lamb Waves 审中-公开
    使用羔羊波的微环检测

    公开(公告)号：US20090231954A1

    公开(公告)日：2009-09-17

    申请号：US12049515

    申请日：2008-03-17

    申请人： Alexei Bolshakov ,  Edward J. Domangue ,  Douglas J. Patterson

    发明人： Alexei Bolshakov ,  Edward J. Domangue ,  Douglas J. Patterson

    IPC分类号： G01V1/40

    CPC分类号： G01V1/50

    摘要： A method, apparatus and computer-readable medium for identifying a micro-annulus outside a casing in a cemented wellbore. The attenuation of a Lamb wave and a compressional wave is used to determine a presence of a micro-annulus between the casing and the cement.

    摘要翻译： 一种用于识别胶结井眼中壳体外部的微环的方法，装置和计算机可读介质。 使用兰姆波和压缩波的衰减来确定壳体和水泥之间的微环的存在。

    Method and apparatus for cement bond evaluation using transversely polarized shear waves
    4.
    发明申请
    Method and apparatus for cement bond evaluation using transversely polarized shear waves 有权
    使用横向极化剪切波进行水泥粘结评估的方法和装置

    公开(公告)号：US20050190648A1

    公开(公告)日：2005-09-01

    申请号：US10787628

    申请日：2004-02-26

    申请人： Xiao-Ming Tang ,  Alexei Bolshakov ,  Tsili Wang ,  Douglas Patterson

    发明人： Xiao-Ming Tang ,  Alexei Bolshakov ,  Tsili Wang ,  Douglas Patterson

    IPC分类号： G01V1/40 ,  G01V1/50

    CPC分类号： G01V1/50

    摘要： A method and apparatus useful to determine the integrity of a cement bond log disposed in the annular space between a casing and a wellbore. The method and apparatus produce a transversely polarized shear wave and emit the wave through the casing and into the wellbore. The transversely polarized shear wave attenuates upon passage through the cement bond log. The integrity of the cement bond log can be determined through an analysis and evaluation of the attenuation results.

    摘要翻译： 一种用于确定设置在壳体和井眼之间的环形空间中的水泥结合对数的完整性的方法和装置。 该方法和装置产生横向偏振的剪切波，并通过壳体并发射到井眼中。 横向极化剪切波在通过水泥粘结测井时衰减。 可以通过对衰减结果的分析和评估来确定水泥结合对数的完整性。

    Acoustic isolator for downhole applications
    5.
    发明申请
    Acoustic isolator for downhole applications 有权
    用于井下应用的隔声器

    公开(公告)号：US20050023074A1

    公开(公告)日：2005-02-03

    申请号：US10884850

    申请日：2004-07-02

    申请人： Vladimir Dubinsky ,  Alexei Bolshakov

    发明人： Vladimir Dubinsky ,  Alexei Bolshakov

    IPC分类号： G01V1/52 ,  G01V1/00

    CPC分类号： G01V1/523

    摘要： An apparatus for performing acoustic investigations while drilling a borehole in a subsurface geological formation comprises a longitudinally extending assembly conveyed in the borehole on a drilling tubular. The assembly and the drilling tubular have a drilling fluid flowing through a longitudinally extending passage in the assembly and the drilling tubular. An acoustic transmitter is supported by the assembly. The transmitter generates acoustic signals in the assembly, the borehole and the subsurface formation. An acoustic receiver is spaced apart from the transmitter and receive the acoustic signals. An attenuator is located in the assembly between the acoustic transmitter and the acoustic receiver for attenuating the acoustic signals in the assembly within a predetermined frequency range. The attenuator comprises a tubular element of a composite material having a substantially cylindrical outer surface. The outer surface has a plurality of spaced-apart masses having a predetermined spacing, mass and length firmly attached thereto.

    摘要翻译： 一种在地下地质构造中钻孔时执行声学研究的装置包括在井筒中在钻孔管上传送的纵向延伸的组件。 组件和钻管具有流过组件和钻管中的纵向延伸通道的钻井流体。 音响发射器由组件支撑。 发射器在组件，井眼和地下地层中产生声信号。 声学接收器与发射器间隔开并接收声学信号。 衰减器位于声发射器和声接收器之间的组件中，用于在预定频率范围内衰减组件中的声信号。 衰减器包括具有基本圆柱形外表面的复合材料的管状元件。 外表面具有多个间隔开的质量块，其具有预定的间隔，质量和长度与其牢固连接。

    Casing resonant radial flexural modes in cement bond evaluation
    6.
    发明授权
    Casing resonant radial flexural modes in cement bond evaluation 有权
    水泥债券评估中套管共振径向弯曲模式

    公开(公告)号：US07681450B2

    公开(公告)日：2010-03-23

    申请号：US11634771

    申请日：2006-12-06

    申请人： Alexei Bolshakov ,  Vladimir Dubinsky ,  Xiao Ming Tang ,  Douglas J. Patterson ,  Dimitri Donskoy ,  Joseph Gregory Barolak

    发明人： Alexei Bolshakov ,  Vladimir Dubinsky ,  Xiao Ming Tang ,  Douglas J. Patterson ,  Dimitri Donskoy ,  Joseph Gregory Barolak

    IPC分类号： G01N29/12 ,  G01V1/40 ,  G01V1/00

    CPC分类号： E21B47/0005 ,  G01V1/50

    摘要： A method useful for evaluating the presence and/or the quality of the cement bond of a downhole tubular. The method involves measuring radial resonance modes of the tubular, and comparing those measured values to the unbound tubular resonant values of a calibration ring. For a well bonded tubular, the measured radial resonance should be greater than that of the unbound tubular calibration ring. In regions where a fluid, such as water surrounds the outside of the tubular, or the cement is otherwise not bonded to the outer surface of the tubular, the measured response should be less than the calibrated response. The calibration ring should have the same diameter, wall thickness, and be made of the same material as the tubular.

    摘要翻译： 一种用于评估井下管道的水泥粘结的存在和/或质量的方法。 该方法包括测量管的径向共振模式，并将这些测量值与校准环的未结合的管状共振值进行比较。 对于良好结合的管状物，测得的径向共振应大于未结合的管状校准环的径向共振。 在诸如水之类的流体围绕管状外部的区域中，或者水泥否则不粘合到管状物的外表面，测量的响应应小于校准的响应。 校准环应具有相同的直径，壁厚，并且由与管状物相同的材料制成。

    Cement bond analysis
    8.
    发明申请
    Cement bond analysis 有权
    水泥债券分析

    公开(公告)号：US20080112262A1

    公开(公告)日：2008-05-15

    申请号：US11599919

    申请日：2006-11-15

    申请人： Xiao Ming Tang ,  Alexei Bolshakov ,  Edward Domangue

    发明人： Xiao Ming Tang ,  Alexei Bolshakov ,  Edward Domangue

    IPC分类号： E21B47/00 ,  G01V1/40

    CPC分类号： G01B17/02 ,  E21B47/0005 ,  G01V1/50

    摘要： A method and apparatus for evaluating a bond between a formation and a bonding material. The method includes emitting a shear wave into the tubular, recording the response of the shear wave, and evaluating the response to obtain bond information. The bond information includes bond material thickness and efficacy of the bond between cement and formation. The method includes studying and utilizing the time lag of the direct wave and wave events, as well as the interference of these waves on a spectral graph. A calibration method is included as well.

    摘要翻译： 一种用于评估地层和接合材料之间的接合的方法和装置。 该方法包括向管中发射剪切波，记录剪切波的响应，并评估响应以获得粘结信息。 债券信息包括债券材料厚度和水泥与地层之间的债券的效力。 该方法包括研究和利用直接波和波事件的时滞，以及这些波在光谱图上的干扰。 还包括校准方法。

    Acoustic isolator downhole applications
    10.
    发明授权
    Acoustic isolator downhole applications 有权
    隔声器井下应用

    公开(公告)号：US07032707B2

    公开(公告)日：2006-04-25

    申请号：US10610940

    申请日：2003-07-01

    申请人： Sergey Egerev ,  Vladimir Belov ,  Vladimir Dubinsky ,  Alexei Bolshakov ,  Victor Tiutekin ,  Victor Yushin

    发明人： Sergey Egerev ,  Vladimir Belov ,  Vladimir Dubinsky ,  Alexei Bolshakov ,  Victor Tiutekin ,  Victor Yushin

    IPC分类号： G01V1/40 ,  G01V1/44

    CPC分类号： G01V1/523

    摘要： A plurality of heavy mass irregularities attached to an inner wall of the drill collar attenuate waves traveling through the collar. The plurality of heavy mass irregularities are spaced and sized for the maximum attenuation of acoustic pulses in a predetermined frequency range. The mass irregularities may be rings secured to the inner surface of the collar by neck pieces, extending outwardly from the outer circumference of the ring. The mass irregularities may be made of steel or tungsten and are between six and ten in number. The spacing of the irregularities may lie between twelve and fourteen centimeters. A center pipe may be included to isolate the irregularities from the fluid flow associated with the drilling operation. The pipe may be of a soft material such as rubber to reduce transfer of acoustic noise along the drill string. The irregularities may be in an oil based fluid with the pipe fitting closely in the center of the rings. In another embodiment of the invention, each of the mass irregularities is attached to the drill collar over substantially the entire length of the mass irregularity, enabling the attenuation of high frequencies. In yet another embodiment of the invention, the attenuator comprises a substantially cylindrical body with a plurality of recesses on the inside and/or outside of the cylindrica body, with the length of the recesses selected to provide attenuation within a specified band. In another embodiment of the invention, the attenuator comprises a plurality of sections each having an inner diameter and an outer diameter, each section acting like a waveguide with an associated passband and reject-band.

    摘要翻译： 附接到钻铤的内壁的多个重质量不规则物减弱了穿过套环的波浪。 多个重质量不规则部分被间隔开并确定尺寸，用于预定频率范围内的声脉冲的最大衰减。 质量凹凸可以是通过颈部从环的外圆周向外延伸的固定到套环内表面的环。 质量不匀度可以由钢或钨制成，数量在六到十之间。 不规则的间距可以在十二到十四厘米之间。 可以包括中心管以将不规则物与与钻井操作相关联的流体流动隔离。 管道可以是诸如橡胶的软材料，以减少沿着钻柱的声学噪声传递。 不规则形状可以在油基流体中，管道紧密配合在环的中心。 在本发明的另一个实施例中，每个质量不规则物在质量不规则的基本上整个长度上附接到钻铤，使得能够衰减高频。 在本发明的另一个实施例中，衰减器包括在圆柱体的内部和/或外部具有多个凹槽的基本上圆柱形的主体，其中凹部的长度被选择以在特定的带内提供衰减。 在本发明的另一个实施例中，衰减器包括多个部分，每个部分具有内径和外径，每个部分的作用类似于具有相关联的通带和拒绝带的波导。