专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US10465503B2 Systems and methods for downhole BHA insulation in magnetic ranging applications 有权
公开(公告)号：US10465503B2
公开(公告)日：2019-11-05
申请号：US13698575
申请日：2011-05-20
申请人： John K. Snyder , Michael D. Finke
发明人： John K. Snyder , Michael D. Finke
IPC分类号： E21B47/12 , E21B47/022 , G06F17/00
摘要： A ranging system includes a drill string comprising a bottom hole assembly (BHA). A plurality of ranging devices are positioned in a spaced-apart orientation on the drill string and are operable to provide a conducting contact with a formation. At least one insulator member is positioned on the drill string between the plurality of ranging devices and is operable to provide a non-conducting contact with the formation. During drilling operations, the plurality of ranging devices provide conducting contact with a formation while the at least one insulator member provides non-conducting contact with the formation so to enhancing ranging operations while drilling. A method of modeling and simulating drill string response is provided to identify locations along the drill string for positioning insulator members.

2. 发明申请

US20130068526A1 SYSTEMS AND METHODS FOR DOWNHOLE BHA INSULATION IN MAGNETIC RANGING APPLICATIONS 审中-公开
标题翻译：用于磁性定位应用中的井下绝缘的系统和方法
公开(公告)号：US20130068526A1
公开(公告)日：2013-03-21
申请号：US13698575
申请日：2011-05-20
申请人： John K. Snyder , Michael D. Finke
发明人： John K. Snyder , Michael D. Finke
IPC分类号： E21B47/12 , G06F17/00
CPC分类号： E21B47/12 , E21B47/02216 , G06F17/00
摘要： A ranging system includes a drill string comprising a bottom hole assembly (BHA). A plurality of ranging devices are positioned in a spaced-apart orientation on the drill string and are operable to provide a conducting contact with a formation. At least one insulator member is positioned on the drill string between the plurality of ranging devices and is operable to provide a non-conducting contact with the formation. During drilling operations, the plurality of ranging devices provide conducting contact with a formation while the at least one insulator member provides non-conducting contact with the formation so to enhancing ranging operations while drilling. A method of modeling and simulating drill string response is provided to identify locations along the drill string for positioning insulator members.
摘要翻译：测距系统包括包括底孔组件（BHA）的钻柱。多个测距装置在钻柱上以间隔方向定位，并且可操作以提供与地层的导电接触。至少一个绝缘体构件位于多个测距设备之间的钻柱上，并且可操作地提供与地层的非导电接触。在钻井操作期间，多个测距装置提供与地层的导电接触，而所述至少一个绝缘体构件提供与地层的非导电接触，以便在钻井时增强测距操作。提供了一种建模和模拟钻柱响应的方法，以识别用于定位绝缘体构件的钻柱的位置。

3. 发明申请

US20110308859A1 System and Method for EM Ranging in Oil-Based Mud 有权
标题翻译：油泥泥浆测量系统及方法
公开(公告)号：US20110308859A1
公开(公告)日：2011-12-22
申请号：US13116069
申请日：2011-05-26
申请人： Michael S. BITTAR , Jing LI , Shanjun LI , Michael D. FINKE
发明人： Michael S. BITTAR , Jing LI , Shanjun LI , Michael D. FINKE
IPC分类号： E21B47/02
CPC分类号： E21B47/022
摘要： Nearby conductors such as pipes, well casing, etc., are detectable from within a borehole filled with an oil-based fluid. At least some method embodiments provide a current flow between axially-spaced conductive bridges on a drillstring. The current flow disperses into the surrounding formation and causes a secondary current flow in the nearby conductor. The magnetic field from the secondary current flow can be detected using one or more azimuthally-sensitive antennas. Direction and distance estimates are obtainable from the azimuthally-sensitive measurements, and can be used as the basis for steering the drillstring relative to the distant conductor. Possible techniques for providing current flow in the drillstring include imposing a voltage across an insulated gap or using a toroid around the drillstring to induce the current flow.
摘要翻译：诸如管道，井套管等的附近的导体可以从填充有油基流体的钻孔内检测。至少一些方法实施例提供了在钻柱上的轴向隔开的导电桥之间的电流。电流流向周围的地层，并在附近的导体中产生二次电流。可以使用一个或多个方位角敏感天线来检测来自次级电流的磁场。方向和距离估计可以从方位角敏感测量中获得，并且可以用作相对于远距离导体转向钻柱的基础。在钻柱中提供电流的可能技术包括在绝缘间隙上施加电压，或者在钻柱周围使用环形线来引起电流。

4. 发明授权

US08844648B2 System and method for EM ranging in oil-based mud 有权
标题翻译：油基泥浆中EM范围的系统和方法
公开(公告)号：US08844648B2
公开(公告)日：2014-09-30
申请号：US13116069
申请日：2011-05-26
申请人： Michael S. Bittar , Jing Li , Shanjun Li , Michael D. Finke
发明人： Michael S. Bittar , Jing Li , Shanjun Li , Michael D. Finke
IPC分类号： E21B47/02 , E21B47/022
CPC分类号： E21B47/022
摘要： Nearby conductors such as pipes, well casing, etc., are detectable from within a borehole filled with an oil-based fluid. At least some method embodiments provide a current flow between axially-spaced conductive bridges on a drillstring. The current flow disperses into the surrounding formation and causes a secondary current flow in the nearby conductor. The magnetic field from the secondary current flow can be detected using one or more azimuthally-sensitive antennas. Direction and distance estimates are obtainable from the azimuthally-sensitive measurements, and can be used as the basis for steering the drillstring relative to the distant conductor. Possible techniques for providing current flow in the drillstring include imposing a voltage across an insulated gap or using a toroid around the drillstring to induce the current flow.
摘要翻译：诸如管道，井套管等的附近的导体可以从填充有油基流体的钻孔内检测。至少一些方法实施例提供了在钻柱上的轴向隔开的导电桥之间的电流。电流流向周围的地层，并在附近的导体中产生二次电流。可以使用一个或多个方位角敏感天线来检测来自次级电流的磁场。方向和距离估计可以从方位角敏感测量中获得，并且可以用作相对于远距离导体转向钻柱的基础。在钻柱中提供电流的可能技术包括在绝缘间隙上施加电压，或者在钻柱周围使用环形线来引起电流。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式