公开(公告)号：US06710600B1

公开(公告)日：2004-03-23

申请号：US09080413

申请日：1998-05-18

申请人： Denis S. Kopecki ,  MacMillian M. Wisler ,  Hendrik John

发明人： Denis S. Kopecki ,  MacMillian M. Wisler ,  Hendrik John

IPC分类号： G01V300

CPC分类号： E21B47/01 ,  G01V3/30

摘要： A drill collar structure to facilitate measurement-while-drilling (MWD) techniques while at the same time having sufficient rigidity to facilitate the drilling operation is disclosed. In some embodiments, a metal structure involving openings such as slots, preferably oriented longitudinally along its axis, but also in other configurations, are disclosed to allow sufficient strength while at the same time allowing exit and entrance of electromagnetic energy. A composite structure is also disclosed which, for given layers, has adjacent fibers such as glass and carbon, so that when the layers are overlapped, glass areas overlap glass areas throughout the radial thickness of the composite tube to create “windows” for the entrance and exit of electromagnetic energy. In yet other embodiments, the drill collar can be made of a metallic frame structure with a multiplicity of openings which are filled with a composite material. The metallic frame structure provides structural rigidity while the openings, filled with composite material which are attached to the metal structure, form a fluid-tight cohesive structure sufficient to withstand the rigors of drilling, while at the same time allow the measurements of the formation to be taken through the windows or by making use of sensors embedded in the windows. In another alternative composite structure, carbon fibers can be used if they are electrically insulated in the areas where electromagnetic energy is to enter and exit the structure. Another composite alternative is to alternate carbon and glass fibers in particular sequences or to use insulated carbon fibers to facilitate the operation of instruments which can be mounted in the structure whose operation could be negatively affected by conductivity in the wall in an azimuthal direction.

摘要翻译： 公开了一种钻铤结构，以便于同时进行钻井测量（MWD）技术，同时具有足够的刚度以便于钻井操作。 在一些实施例中，公开了一种涉及诸如槽之类的开口的金属结构，优选地沿其轴线纵向定向，而且在其它构造中，允许足够的强度同时允许电磁能的出入和入口。 还公开了一种复合结构，对于给定层，其具有相邻的纤维如玻璃和碳，使得当层重叠时，玻璃区域在整个复合管的整个径向厚度上与玻璃区域重叠以形成入口的“窗口” 并退出电磁能。 在其他实施例中，钻铤可以由具有多个开口的金属框架结构制成，其中填充有复合材料。 金属框架结构提供了结构刚性，而填充有复合材料的开口连接到金属结构上形成足够的流体密封的内聚结构，足以承受钻井的严格性，同时允许测量地层 通过窗户或使用嵌入在窗户中的传感器。 在另一种替代的复合结构中，如果碳纤维在电磁能进入和离开结构的区域中是电绝缘的，则可以使用碳纤维。 另一种复合替代方案是以特定顺序交替使用碳纤维和玻璃纤维，或者使用绝缘碳纤维来促进仪器的操作，这些仪器可以安装在结构中，其操作可能受到方位角方向上的壁中的导电性的不利影响。

公开(公告)号：US06577129B1

公开(公告)日：2003-06-10

申请号：US10053041

申请日：2002-01-19

申请人： Larry W. Thompson ,  MacMillian M. Wisler ,  Jian-Qun Wu

发明人： Larry W. Thompson ,  MacMillian M. Wisler ,  Jian-Qun Wu

IPC分类号： G01V308

CPC分类号： G01V3/30

摘要： An electromagnetic wave propagation resistivity borehole logging system comprising multiple groups of electromagnetic transmitter-receiver arrays operating at three frequencies. The borehole logging tool component of the system employs eight transmitters and four receivers. The transmitters and receivers are disposed axially and symmetrically along the major axis of the tool to form four group pairs. Each group pair consists of a transmitter-receiver groups axially and symmetrically on opposing sides of a reference point on the tool. Each, transmitter-receiver group consists of one transmitter assembly and two receiver assemblies. Each transmitter-receiver group is operated at two of three operating frequencies which are 100 kHz, 400 kHz and 2 MHz. Some of the transmitter and receiver assemblies are fabricated to yield azimuthally focused resistivity measurements, and to yield vertical and horizontal resistivity in anisotropic dipping beds. The system can be embodied as a logging-while-drilling system or as a wireline logging system.

摘要翻译： 一种电磁波传播电阻率井眼测井系统，包括以三个频率工作的多组电磁发射机 - 接收机阵列。 系统的井眼测井工具部件采用八个发射器和四个接收器。 发射器和接收器沿着工具的长轴轴向和对称地布置以形成四组对。 每个组对由在工具上的参考点的相对侧轴向和对称的发射器 - 接收器组组成。 每个发射机 - 接收机组由一个发射器组件和两个接收器组件组成。 每个发射机 - 接收机组的工作频率分别为100 kHz，400 kHz和2 MHz。 制造一些发射器和接收器组件以产生方位角聚焦的电阻率测量，并且在各向异性浸渍床中产生垂直和水平的电阻率。 该系统可以体现为钻井测井系统或电缆测井系统。

公开(公告)号：US06646441B2

公开(公告)日：2003-11-11

申请号：US10053043

申请日：2002-01-19

申请人： Larry W. Thompson ,  MacMillian M. Wisler ,  Jian-Qun Wu

发明人： Larry W. Thompson ,  MacMillian M. Wisler ,  Jian-Qun Wu

IPC分类号： G01V308

CPC分类号： G01V3/30

摘要： An electromagnetic wave propagation resistivity borehole logging system comprising multiple groups of electromagnetic transmitter-receiver arrays operating at three frequencies. The borehole logging tool component of the system employs eight transmitters and four receivers. The transmitters and receivers are disposed axially and symmetrically along the major axis of the tool to form four group pairs. Each group pair consists of a transmitter-receiver groups axially and symmetrically on opposing sides of a reference point on the tool. Each, transmitter-receiver group consists of one transmitter assembly and two receiver assemblies. Each transmitter-receiver group is operated at two of three operating frequencies which are 100 kHz, 400 kHz and 2 MHz. The transmitter and receiver assemblies are fabricated to yield azimuthally symmetrical resistivity measurements in a plane essentially perpendicular to the axis of the tool. The system can be embodied as a logging-while-drilling system or as a wireline logging system.

摘要翻译： 一种电磁波传播电阻率井眼测井系统，包括以三个频率工作的多组电磁发射机 - 接收机阵列。 系统的井眼测井工具部件采用八个发射器和四个接收器。 发射器和接收器沿着工具的长轴轴向和对称地布置以形成四组对。 每个组对由在工具上的参考点的相对侧轴向和对称的发射器 - 接收器组组成。 每个发射机 - 接收机组由一个发射器组件和两个接收器组件组成。 每个发射机 - 接收机组的工作频率分别为100 kHz，400 kHz和2 MHz。 发射器和接收器组件被制造成在基本上垂直于工具的轴线的平面中产生方位角对称的电阻率测量。 该系统可以体现为钻井测井系统或电缆测井系统。

公开(公告)号：US5869968A

公开(公告)日：1999-02-09

申请号：US717201

申请日：1996-09-18

申请人： Andrew G. Brooks ,  Macmillian M. Wisler ,  Larry W. Thompson ,  Jian-Qun Wu ,  Wallace H. Meyer, Jr. ,  John W. Harrell

发明人： Andrew G. Brooks ,  Macmillian M. Wisler ,  Larry W. Thompson ,  Jian-Qun Wu ,  Wallace H. Meyer, Jr. ,  John W. Harrell

IPC分类号： G01V3/30 ,  G01V3/08 ,  G01V3/18 ,  G01V3/26

CPC分类号： G01V3/30

摘要： An arrangement of two closely spaced transmitters and two spaced apart receivers symmetrically disposed about the transmitters in a measurement while drilling tool avoids the effects of mutual coupling between the receivers. In one method of operation of the transmitters, each transmitter is sequentially activated while the other transmitter is decoupled to eliminate mutual coupling, and the recorded signals processed to take advantage of reciprocity relations. In another method of operation, both transmitters are operated simultaneously with one relative polarity and then with another relative polarity, to eliminate the effects of mutual coupling and to take advantage of reciprocity relations.

摘要翻译： 两个紧密间隔的发射器和两个间隔开的接收器的布置在钻孔工具期间在测量中对称地设置在发射器周围，避免了接收器之间的相互耦合的影响。 在发射机的一种操作方法中，每个发射机被顺序激活，而另一个发射机被去耦合以消除相互耦合，并且记录的信号被处理以利用互惠关系。 在另一种操作方法中，两个发射器以一个相对极性同时运行，然后以另一个相对极性运行，以消除相互耦合的影响并利用互惠关系。