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公开(公告)号：WO2018063392A1
公开(公告)日：2018-04-05
申请号：PCT/US2016/054993
申请日：2016-09-30
IPC分类号： G02B6/02
CPC分类号： E21B17/003 , E21B47/00 , G01D5/268 , G01N21/00 , G02B6/02395 , G02B6/4415 , G02B6/443 , G02B6/4479 , H01G11/08 , H01G11/10 , H01G11/36 , H01G11/86
摘要： The disclosed embodiments include an optical fiber having a graphene coating, a method to apply a graphene coating onto an optical fiber, and a fiber optic cable having a graphene coating. In one embodiment, the optical fiber includes an optical core that extends along a longitudinal axis. The optical fiber also includes a carbon based coating that covers the optical core along the longitudinal axis. The optical fiber also includes a layer of graphene formed on a first surface of the carbon based coating. The layer of graphene is formed from a laser induction process that includes focusing a laser beam at the carbon based coating to photothermally convert the first surface of the carbon based coating into graphene.
摘要翻译： 所公开的实施例包括具有石墨烯涂层的光纤，将石墨烯涂层施加到光纤上的方法以及具有石墨烯涂层的光纤电缆。 在一个实施例中，光纤包括沿着纵向轴线延伸的光学芯。 光纤还包括沿着纵向轴线覆盖光学芯的碳基涂层。 光纤还包括在碳基涂层的第一表面上形成的石墨烯层。 石墨烯层由激光诱导工艺形成，该工艺包括将激光束聚焦在碳基涂层上以将碳基涂层的第一表面光热转换为石墨烯。
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公开(公告)号：WO2017196317A1
公开(公告)日：2017-11-16
申请号：PCT/US2016/031834
申请日：2016-05-11
IPC分类号： E21B47/12 , E21B47/135 , E21B41/00
摘要： The disclosed embodiments include a method and fiber optic cable to provide optical pulses for sensing, and an optical telemetry system. In one embodiment, the method includes sequentially transmitting a plurality of optical pulses through a first end of a first optical fiber disposed in a first section of a wellbore. The plurality of optical pulses is combined into a combined optical pulse at a distance from the first end of the first optical fiber. The method further includes transmitting the combined optical pulse through a second optical fiber disposed in a second section of the wellbore, and the second optical fiber includes a second dispersion value, where an absolute value of the first dispersion value is greater than an absolute value of the second dispersion value.
摘要翻译： 所公开的实施例包括用于提供用于感测的光脉冲的方法和光缆以及光学遥测系统。 在一个实施例中，该方法包括通过布置在井筒的第一部分中的第一光纤的第一端顺序地发送多个光脉冲。 多个光脉冲在距第一光纤的第一端一定距离处组合成组合的光脉冲。 该方法还包括通过设置在井眼的第二部分中的第二光纤传输组合光脉冲，并且第二光纤包括第二色散值，其中第一色散值的绝对值大于绝对值 第二个分散值。
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公开(公告)号：WO2017082857A1
公开(公告)日：2017-05-18
申请号：PCT/US2015/059707
申请日：2015-11-09
发明人： GIRON, Casey , NITSCHE, Wolfgang, Hartmut , MAIDA, John, Laureto, Jr. , BHONGALE, Satyan, Gopal , GAO, Li
CPC分类号： F16L55/48 , G05D1/0206
摘要： The present disclosure provides for a pig tracking and locating system that is able to pinpoint the exact location of a pig so that if the pig becomes stuck, it can be more efficiently located and retrieved without excessive searching. A representative system includes an unmanned underwater vehicle that travels with or very near the pig as it progresses through a pipeline, and gathers and stores information transmitted by the pig. This information may include location data that can be transmitted in the event the pig becomes stuck.
摘要翻译： 本发明提供了能够精确定位猪的确切位置的猪追踪和定位系统，从而如果猪被卡住，可以更有效地定位和检索猪，而无需过度搜索。 一个代表性的系统包括一个无人水下运载工具，随着它在管道中的前进，该运载工具与猪一起或非常靠近猪，并收集和储存由猪传播的信息。 这些信息可能包含在猪被卡住的情况下可以传输的位置数据。
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公开(公告)号：WO2017007453A1
公开(公告)日：2017-01-12
申请号：PCT/US2015/039335
申请日：2015-07-07
CPC分类号： E21B47/122 , E21B47/123
摘要： An example telemetry system for downhole operations in a subterranean formation comprises an electromagnetic (EM) radiation source and an EM radiation detector. A waveguide may be coupled to the EM radiation source and the EM radiation detector. A frequency multiplier may be coupled to the waveguide and positioned within a borehole in the subterranean formation.
摘要翻译： 用于地下地层中井下作业的示例遥测系统包括电磁（EM）辐射源和EM辐射检测器。 波导可以耦合到EM辐射源和EM辐射检测器。 倍频器可以耦合到波导并且定位在地下地层中的井眼内。
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公开(公告)号：WO2016209279A1
公开(公告)日：2016-12-29
申请号：PCT/US2015/038073
申请日：2015-06-26
CPC分类号： G01V8/16 , E21B47/0006 , E21B47/06 , E21B47/065 , E21B47/102 , E21B47/123 , H01S3/302 , H01S2301/085 , H04B10/25077
摘要： A downhole sensing method includes modulating light to form a soliton that propagates through an optical fiber acting as a sensing element that measures a downhole parameter. The method further includes obtaining scattered light created as the soliton propagates through the optical fiber. The method further includes determining a value for a downhole parameter based on the scattered light, and displaying a representation of the value.
摘要翻译： 井下感测方法包括调制光以形成传播通过用作测量井下参数的感测元件的光纤的孤子。 该方法还包括获得当孤子传播通过光纤时产生的散射光。 该方法还包括基于散射光确定井下参数的值，以及显示该值的表示。
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