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公开(公告)号：US08347985B2
公开(公告)日：2013-01-08
申请号：US12679502
申请日：2008-04-25
IPC分类号： E21B47/00
CPC分类号： E21B47/0905
摘要： Multimodal geosteering systems and methods are disclosed. Some disclosed tool embodiments include first and second transmitter-receiver arrangements that make geosteering measurements using different forms of energy (such as acoustic and electromagnetic energy) to provide geosteering measurements that at least indicate a boundary direction but may also indicate a boundary distance. Some disclosed method embodiments include: determining a direction to a bed boundary using measurements with different energy types; and adjusting a drilling direction based at least in part on said determination. Combinations of (or selections between) the different measurements may be made based on, inter alia, measurement range, resolution, and contrast. Some disclosed system embodiments include a memory and a processor. The memory stores geosteering display software that configures the processor to generate an image with different regions based on the different types of geosteering measurements. Characteristics such as opacity, resolution, and intensity may visually distinguish the different regions.
摘要翻译： 公开了多模式地质导向系统和方法。 一些公开的工具实施例包括使用不同形式的能量（例如声学和电磁能量）进行地理导向测量的第一和第二发射器 - 接收器布置，以提供至少指示边界方向但也可以指示边界距离的地质导向测量。 一些公开的方法实施例包括：使用具有不同能量类型的测量来确定床边界的方向; 以及至少部分地基于所述确定来调整钻孔方向。 可以基于测量范围，分辨率和对比度来进行不同测量之间的（或选择）的组合。 一些公开的系统实施例包括存储器和处理器。 存储器存储地理导向显示软件，其基于不同类型的地质导向测量来配置处理器以生成具有不同区域的图像。 诸如不透明度，分辨率和强度的特征可以在视觉上区分不同的区域。
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公开(公告)号：US20110180327A1
公开(公告)日：2011-07-28
申请号：US12679502
申请日：2008-04-25
CPC分类号： E21B47/0905
摘要： Multimodal geosteering systems and methods are disclosed. Some disclosed tool embodiments include first and second transmitter-receiver arrangements that make geosteering measurements using different forms of energy (such as acoustic and electromagnetic energy) to provide geosteering measurements that at least indicate a boundary direction but may also indicate a boundary distance. Some disclosed method embodiments include: determining a direction to a bed boundary using measurements with different energy types; and adjusting a drilling direction based at least in part on said determination. Combinations of (or selections between) the different measurements may be made based on, inter alia, measurement range, resolution, and contrast. Some disclosed system embodiments include a memory and a processor. The memory stores geosteering display software that configures the processor to generate an image with different regions based on the different types of geosteering measurements. Characteristics such as opacity, resolution, and intensity may visually distinguish the different regions.
摘要翻译： 公开了多模式地质导向系统和方法。 一些公开的工具实施例包括使用不同形式的能量（例如声学和电磁能量）进行地理导向测量的第一和第二发射器 - 接收器布置，以提供至少指示边界方向但也可以指示边界距离的地质导向测量。 一些公开的方法实施例包括：使用具有不同能量类型的测量来确定床边界的方向; 以及至少部分地基于所述确定来调整钻孔方向。 可以基于测量范围，分辨率和对比度来进行不同测量之间的（或选择）的组合。 一些公开的系统实施例包括存储器和处理器。 存储器存储地理导向显示软件，其基于不同类型的地质导向测量来配置处理器以生成具有不同区域的图像。 诸如不透明度，分辨率和强度的特征可以在视觉上区分不同的区域。
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公开(公告)号：US10119388B2
公开(公告)日：2018-11-06
申请号：US13524158
申请日：2012-06-15
摘要： A retrievable tool for steering through an earth formation includes a first tool assembly and a tilted antenna attached to the first tool assembly. The tool also includes a second tool assembly attached to the first tool assembly and a tilted antenna attached to the second tool assembly. The first tool assembly attaches to the second tool assembly so that the antennas are tilted in predetermined directions. The tilted antennas are transmitter antennas or receiver antennas. Each tool assembly is a tubular cylinder with a longitudinal axis running the length of the cylinder, wherein the tubular cylinder has two ends, each end including a rotational attachment mechanism. The tool assemblies attach to each other through their rotational attachment mechanisms. The rotational attachment mechanism may be a screw-on mechanism, press-fit mechanism, or welded mechanism.
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公开(公告)号：US10553927B2
公开(公告)日：2020-02-04
申请号：US13499739
申请日：2009-10-09
摘要： A downhole tool including a transmitter coil assembly and a receiver coil assembly. The coil assembly includes at least one first coil having a first support member with a first single layer of wire wound therearound. The coil assembly further includes at least one second coil. The second coil includes a second support member having a second single layer of wire wound therearound. The first support member is disposed within the second support member, and the first single layer spaced apart from the second single wire by a distance of D.
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公开(公告)号：US10222507B2
公开(公告)日：2019-03-05
申请号：US12808193
申请日：2008-11-19
摘要： Disclosed herein are various telemetry systems and methods suitable for communicating a cylindrical volume of formation property measurements to the surface. Some system embodiments include a downhole processor coupled to a telemetry transmitter. The downhole processor determines a compressed representation of the formation property measurements and/or selects a subset of the measurements for transmission uphole. The subset selection can be based on selected radial distances having characteristics that potentially indicate features of interest to a user. Such features include bed boundaries, and the characteristics include sinusoidal variation as a function of azimuth, large changes in this sinusoidal variation versus radial distance, or inversion suggesting the presence of a bed boundary. Various compressed representations of the cylindrical data volume are disclosed, including representations based on parameters of a sinusoidal model, representations based on a two dimensional transform, and representations based on estimates of distance and direction to a bed boundary.
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公开(公告)号：US09857497B2
公开(公告)日：2018-01-02
申请号：US13574577
申请日：2010-01-22
申请人： Michael S. Bittar , Gary Weaver , Vadim Minosvan
发明人： Michael S. Bittar , Gary Weaver , Vadim Minosvan
CPC分类号： G01V3/20 , B23P15/28 , E21B10/00 , E21B47/01 , E21B47/102
摘要： During drilling of an earth borehole, resistance measurements may be made at the drill bit through use of a bottom hole assembly that includes a drill bit having a sensor, such as an electrode, located generally at an exterior surface of the drill bit. The current will be induced in the formation from multiple transmitters, at least one of which will be supported on, or very close to the drill bit. Connection mechanisms are described that enable the releasable engagement of electrical conductors to circuitry within the drill bits. The obtained resistivity measurements at the drill bit can be used for many purposes, including formation imaging and geosteering of the drilling operation.
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公开(公告)号：US09846253B2
公开(公告)日：2017-12-19
申请号：US13820659
申请日：2010-11-12
摘要： Various embodiments include apparatus and methods to operate with respect to environmental measurements. Apparatus and methods include a processing unit to generate a ratio from signals measured relating to an underground environment and to determine parameters of the underground environment based on the generated ratio.
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公开(公告)号：US09829600B2
公开(公告)日：2017-11-28
申请号：US13981547
申请日：2011-01-25
CPC分类号： G01V3/28 , G01R27/2611 , G01V3/08 , G01V3/10 , G01V3/30
摘要： Various embodiments include apparatus and methods to operate an induction measurement process in a borehole that addresses direct coupling of a signal between sensors of a measuring tool. Apparatus and methods can include a processing unit to generate formation parameters from signals received in the measurement tool. Additional apparatus, systems, and methods are disclosed.
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公开(公告)号：US09310508B2
公开(公告)日：2016-04-12
申请号：US13521769
申请日：2010-06-29
IPC分类号： E21B7/04 , G01V3/12 , G01V3/30 , E21B47/0228 , E21B47/092 , G01V3/38
摘要： Various logging-while-drilling (LWD) systems and methods provide resistivity logging coupled with deep detection of elongated anomalies at acute angles, enabling effective geosteering without disrupting drilling operations and without requiring intervention in the operations of the existing well. One LWD system embodiment employs a tool having tilted antennas as the transmitter and the receiver, where at least one of the antennas is placed in the vicinity of the bit, making it possible to detect existing wells at distances of 50-100 feet. In some cases, the detection distance is increased by enhancing the visibility of the existing well using a contrast fluid treatment on target well, either to fill the bore or to surround the well with treated cement or fluids that invade the formation. At least one inversion method separates the inversion of formation parameters from the inversion of parameters specifying distance, direction, and orientation of the existing well.
摘要翻译： 各种采伐钻井（LWD）系统和方法提供电阻率测井，以及在锐角处深长检测细长异常，从而有效地理转向，而不会中断钻井作业，而不需要干预现有井的作业。 一个LWD系统实施例采用具有倾斜天线的工具作为发射器和接收器，其中至少一个天线被放置在钻头的附近，使得可以检测距离为50-100英尺的现有井。 在某些情况下，通过使用目标井上的造影剂处理来增强现有井的可视性来增加检测距离，以填充孔或围绕侵入地层的经处理的水泥或流体围绕井。 至少一个反演方法将地层参数的反演与指定现有井的距离，方向和方向的参数反演相分离。
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10.发明授权Antenna coupling component measurement tool having a rotating antenna configuration 有权具有旋转天线配置的天线耦合部件测量工具公开(公告)号：US09157315B2
公开(公告)日：2015-10-13
申请号：US13588739
申请日：2012-08-17
IPC分类号： G01V3/30 , G01V3/28 , E21B47/024
CPC分类号： G01V3/28 , E21B47/024 , G01B7/30 , G01V3/34
摘要： Disclosed herein are electromagnetic resistivity logging systems and methods that employ an antenna configuration having at most two transmitter or receiver antenna orientations that rotate relative to the borehole. The measurements made by this reduced-complexity antenna configuration enable the determination of at least seven components of a coupling matrix, which may be determined using a linear system of equations that express the azimuthal dependence of the measurements. For increased reliability, measurement averaging may be performed in azimuthally spaced bins. The coupling matrix components can then be used as the basis for determining logs of various formation parameters, including vertical resistivity and anisotropy.
摘要翻译： 这里公开的电磁波测井系统和方法采用具有相对于钻孔旋转的至多两个发射器或接收器天线方向的天线配置。 通过这种降低复杂度的天线配置进行的测量使得能够确定耦合矩阵的至少七个分量，其可以使用表达测量的方位依赖性的线性方程组来确定。 为了增加可靠性，可以在方位分隔的箱中进行测量平均。 然后可以将耦合矩阵分量用作确定各种地层参数的测井的基础，包括垂直电阻率和各向异性。
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