公开(公告)号：US20030014190A1

公开(公告)日：2003-01-16

申请号：US10190955

申请日：2002-07-08

申请人： Baker Hughes Incorporated

发明人： Vladimir Dubinsky ,  James V. Leggett III ,  Alexi Bolshakov

IPC分类号： G01V003/18

CPC分类号： E21B43/08 ,  E21B43/12 ,  E21B43/14 ,  G01V1/48

摘要： The present invention provides a system for drilling boreholes having a downhole subassembly which contains an acoustic measurement-while-drilling system. It uses the acoustic velocity through the formations surrounding the borehole and an acoustic transmitter and a set of receivers for determining the bed boundaries surrounding the borehole formation. An acoustic isolator on the tool may be used to attenuate body waves traveling between the transmitter and the receivers. Additional attenuation of the body waves is provided by a threshold filter based upon the absolute maximum of the received signals. Semblance of the data is determined in a slowness/intercept-time domain. Coherence and semblance filtering methods are used to differentiate between reflection signals and noise. The position and orientation of the bed boundary relative to the tool are determined. A further processing step uses the relative position and orientation determined for a number of tool positions to further discriminate against noise and obtain an absolute position and depth of the bed boundaries.

公开(公告)号：US20040257912A1

公开(公告)日：2004-12-23

申请号：US10763740

申请日：2004-01-23

申请人： Baker Hughes Incorporated

发明人： Vladimir Dubinsky ,  James V. Leggett III ,  Douglas J. Patterson ,  Herbert W. Beimgraben ,  Julie C. Slaughter ,  Toby Hansen ,  Duane E. Canny

IPC分类号： H04H009/00

CPC分类号： G01V1/52 ,  G01V1/44 ,  G10K9/12 ,  G10K9/121

摘要： An acoustic logging apparatus comprises a drill collar conveyed on a drilling tubular in a borehole within a formation. At least one transmitter is disposed in the drill collar. The transmitter includes at least one magnetostrictive actuator cooperatively coupled by a flexure ring to a piston for converting a magnetostrictive actuator displacement into a related piston displacement for transmitting an acoustic signal in the formation.

摘要翻译： 声学测井装置包括在地层内的井眼中的钻井管道上输送的钻铤。 至少一个发射器设置在钻铤中。 发射机包括至少一个磁致伸缩致动器，其通过弯曲环协作地耦合到活塞，用于将磁致伸缩致动器位移转换为用于在地层中传输声信号的相关活塞位移。

公开(公告)号：US20040256152A1

公开(公告)日：2004-12-23

申请号：US10814918

申请日：2004-03-31

申请人： Baker Hughes Incorporated

发明人： Dmitriy Dashevskiy ,  John D. MacPherson ,  Vladimir Dubinsky ,  Pat McGinley

IPC分类号： E21B025/16 ,  E21B019/08

CPC分类号： E21B44/00 ,  E21B2041/0028

摘要： A drilling control system provides, in one aspect, advisory actions for optimal drilling. Such a system or model utilizes downhole dynamics data and surface drilling parameters, to produce drilling models used to provide to a human operator with recommended drilling parameters for optimized performance. In another aspect, the output of the drilling control system is directly linked with rig instrumentation systems so as to provide a closed-loop automated drilling control system that optimizes drilling while taking into account the downhole dynamic behavior and surface parameters. The drilling models can be either static or dynamic. In one embodiment, the simulation of the drilling process uses neural networks to estimate some nonlinear function using the examples of input-output relations produced by the drilling process.

摘要翻译： 钻井控制系统在一个方面提供了用于最佳钻井的咨询动作。 这种系统或模型利用井下动力学数据和表面钻井参数，以产生用于向人类操作者提供用于优化性能的推荐钻孔参数的钻孔模型。 在另一方面，钻井控制系统的输出与钻机仪表系统直接相连，以便提供一种闭环自动钻井控制系统，其优化钻井同时考虑到井下动态特性和表面参数。 钻孔模型可以是静态的或动态的。 在一个实施例中，钻井过程的模拟使用神经网络来估计一些非线性函数，使用钻井过程产生的输入 - 输出关系的例子。

公开(公告)号：US20040104068A1

公开(公告)日：2004-06-03

申请号：US10610940

申请日：2003-07-01

申请人： Baker Hughes Incorporated

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

IPC分类号： G01V001/40

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。

公开(公告)号：US20040257911A1

公开(公告)日：2004-12-23

申请号：US10753509

申请日：2004-01-08

申请人： Baker Hughes Incorporated

发明人： Xiao Ming Tang ,  Tsili Wang ,  Douglas J. Patterson ,  James V. Leggett III ,  Vladimir Dubinsky

IPC分类号： H04H009/00

CPC分类号： G01V1/48 ,  G01V1/44

摘要： Array quadrupole data obtained in a LWD environment are processed to determine the shear velocity of an earth formation taking into account dispersion effects caused by the logging tool. When this processing is done in an azimuthally anisotropic formation, the shear velocity that is obtained is the slow shear velocity. When 4C (cross-dipole) data are also obtained, then both the fast and slow shear velocities of an azimuthally anisotropic formation can be obtained.

摘要翻译： 在LWD环境中获得的阵列四极杆数据被处理以确定考虑由测井工具引起的分散效应的地层的剪切速度。 当这种处理在方位角各向异性地层中进行时，所获得的剪切速度是缓慢的剪切速度。 当也获得4C（交叉偶极）数据时，可以获得方位角各向异性地层的快速和慢速剪切速度。

公开(公告)号：US20020157895A1

公开(公告)日：2002-10-31

申请号：US10044330

申请日：2002-01-10

申请人： Baker Hughes Incorporated

发明人： Vladimir Dubinsky ,  Alexei Bolshakov

IPC分类号： G01V001/40

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 firmly coupled to the outer surface of the collar. Alternatively, the mass irregularities may be rings firmly coupled to the outer collar surface by neck pieces, extending inwardly from the inner circumference of the ring. The mass irregularities may be made of steel or tungsten. In another preferred embodiment, the mass irregularities are asymmetrically coupled to an outer collar wall for providing preferential directional attenuation.

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。 质量不规则物可以是牢固地联接到轴环的外表面的环。 或者，质量凹凸可以是环，其通过颈部从环的内圆周向内延伸而牢固地联接到外套环表面。 质量不匀度可以由钢或钨制成。 在另一个优选实施例中，质量不规则部分不对称地联接到外套环壁上，用于提供优先的定向衰减。

公开(公告)号：US20020113717A1

公开(公告)日：2002-08-22

申请号：US10045263

申请日：2001-11-07

申请人： Baker Hughes Incorporated

发明人： Xiao Ming Tang ,  Douglas J. Patterson ,  Tsili Wang ,  James V. Leggett III ,  Vladimir Dubinsky

IPC分类号： G01V003/00

CPC分类号： G01V1/44

摘要： The logging tool of this invention includes a transmitter conveyed on a drilling collar for exciting a quadrupole signal in a borehole being drilled by a drill bit and a receiver for receiving the signal. The transmitter is operated at a frequency below the cut-off frequency of the quadrupole collar mode. The received signal consists primarily of the formation quadrupole mode which, at low frequencies, has a velocity that approaches the formation shear velocity. The transmitter, in one embodiment, consists of eight equal sectors of a piezoelectric cylinder mounted on the rim of the drilling collar. The value of the cut-off frequency is primarily dependent on the thickness of the drilling collar. Alternatively, the transmitter may be operated to produce both the collar mode and the formation mode and a processor may be used to filter out the collar mode.

摘要翻译： 本发明的测井工具包括在钻铤上传送的发射器，用于激发由钻头钻的钻孔中的四极杆信号和用于接收信号的接收器。 发射机的工作频率低于四极杆模式的截止频率。 接收的信号主要由形成四极杆模式组成，在低频时，其具有接近地层剪切速度的速度。 在一个实施例中，发射器由安装在钻铤的边缘上的压电圆柱体的八个相等的部分组成。 截止频率的值主要取决于钻铤的厚度。 或者，发射机可以被操作以产生领模和形成模式，并且处理器可以用于过滤掉套环模式。