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公开(公告)号：US11927473B2
公开(公告)日：2024-03-12
申请号：US17867961
申请日：2022-07-19
发明人： Glenn Wilson , Mikko K. Jaaskelainen , Kwang Il Suh , John Laureto Maida , Michel LeBlanc , Andreas Ellmauthaler
IPC分类号： G01H9/00 , G01D5/353 , G01K11/322 , G01K11/324 , G01V1/22 , G01V1/52 , G01V8/16
CPC分类号： G01H9/004 , G01D5/35316 , G01D5/35364 , G01D5/35387 , G01K11/322 , G01K11/324 , G01V1/226 , G01V1/52 , G01V8/16 , G01V2210/1429
摘要： A fiber optic sensing (FOS) system may include a Brillouin Optical Time Domain Analyzer (BOTDA) unit, a first fiber optical cable optically connected to the BOTDA interrogator unit at a first end, and an optical feedthrough system (OFS) optically connected the first fiber optical cable at a second end of the first fiber optical cable. The FOS system may further comprise a fiber optic cable forming a loop within a wellbore that is optically connected to the first fiber optical cable at the OFS and a second fiber optical cable optically connected to the loop at the OFS and wherein the second fiber optical cable is optically connected to the BOTDA interrogator unit.
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公开(公告)号：US20230030289A1
公开(公告)日：2023-02-02
申请号：US17391505
申请日：2021-08-02
发明人： John Laureto Maida , Michael Allen Becker , Exean Kwrisnash Romero Mora , Michel LeBlanc , Cole Aaron Grandjean
摘要： A system may include a splice housing positioned along a portion of tubing in a wellbore and a splice housing protector around the splice housing. An uphole fiber optic cable may extend through the splice housing protector. The uphole fiber optic cable may mate with a first port of the splice housing at a downhole end of the splice housing protector. A downhole fiber optic cable may mate with a second port of the splice housing in the splice housing protector. The splice housing may splice the uphole fiber optic cable and the downhole fiber optic cable.
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公开(公告)号：US11199086B2
公开(公告)日：2021-12-14
申请号：US16305493
申请日：2016-09-02
发明人： Michel Joseph LeBlanc , Wolfgang Hartmut Nitsche , Jose R. Sierra , Yenny Natali Martinez , John Laureto Maida , David Andrew Barfoot
IPC分类号： E21B47/113 , E21B47/07 , E21B47/135
摘要： A method and system can include positioning an optical waveguide along a wellbore, and launching one or more optical signals into the waveguide at one or more optical signal frequencies and during one or more time periods, thereby resulting in one or more backscattered signals being received by the receiver, which produces a trace for each of the one of more backscattered signals. Changing an environmental condition in the wellbore, generating additional backscattered light signals at one or more frequencies after the change. Comparing the traces generated before the condition change to those generated after the change, identifying a before trace and an after trace that are substantially equal to each other and identifying a frequency difference between these traces. The frequency difference can be used to determine the amount of change in the environmental condition that occurred when the environmental change event happened.
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公开(公告)号：US11187072B2
公开(公告)日：2021-11-30
申请号：US16642498
申请日：2017-12-22
发明人： Luke Christopher Downey , Christopher Lee Stokely , John Laureto Maida , John Paul Bir Singh , Lonnie Carl Helms
IPC分类号： E21B47/005 , E21B33/14 , E21B34/06 , E21B23/14 , E21B47/135
摘要： A flow assembly is deployed downhole in a casing for a cementing operation. The flow assembly has a spool with an optical cable. As cement is pumped downhole and through the flow assembly, a dart attached to the optical cable on the spool is dragged with the flow of cement. Cement flow is stopped based on signals along the optical cable that the dart is at a desired location downhole.
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公开(公告)号：US10948625B2
公开(公告)日：2021-03-16
申请号：US16328230
申请日：2016-09-27
摘要： A system, method, and device for determining volume concentration with diffraction of electromagnetic radiation. A device for determining a volume concentration of a fluid in a sample comprises a transducer, a transmitter, a detector, and a processor. The transducer generates a standing acoustic wave through the sample. The transmitter emits electromagnetic (EM) radiation into the sample such that the EM radiation is diffracted by the sample. The detector is responsive to the diffracted EM radiation and generates a signal indicative of a wavelength of an acoustic wave corresponding to the standing acoustic wave. The processor analyzes the signal to determine the volume concentration of the fluid in the sample.
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公开(公告)号：US11598481B2
公开(公告)日：2023-03-07
申请号：US16322778
申请日：2016-09-20
摘要： A method for determining when to change a lubricating fluid flowing within an apparatus includes monitoring the lubricating fluid flowing within the apparatus by passing radiation through the lubricating fluid from a radiation source. The lubricating fluid is analyzed for a presence of particles in the lubricating fluid based on the radiation passing through the lubricating fluid. A concentration of the particles in the lubricating fluid is determined when the presence of particles is detected. An alert to change the lubricating fluid is generated when the concentration of particles in the lubricating fluid exceeds a threshold.
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公开(公告)号：US11366275B2
公开(公告)日：2022-06-21
申请号：US16585543
申请日：2019-09-27
发明人： John Laureto Maida , Sudhir Kumar Gupta , Michel Joseph LeBlanc , Arabinda Misra , Ramon Hernandez Marti
摘要： A hybrid electro-optic (EO) wireline cable includes optical fibers strategically placed within to allow acoustic sensing methods as well as provide power and electrical telemetry. The hybrid EO wireline cable contains optical fibers in the interstices among symmetrically arranged electrical wire bundles to allow a hybrid EO cable to be concurrently used for electrical telemetry and optical fiber sensing without interference in a wellbore environment. This hybrid EO cable maintains electric and magnetic field symmetry which allows an optimal electrical signaling rate through orthogonal propagation modes. By placing optical fibers symmetrically inside the interstitial spaces between electrical wire bundles, the cable maintains its optimal signaling rate and avoids the mechanical and electrical limitations that would be introduced when combining electrical wires and optical fibers in a wireline cable.
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公开(公告)号：US20210238995A1
公开(公告)日：2021-08-05
申请号：US17071839
申请日：2020-10-15
IPC分类号： E21B47/135 , E21B47/10 , E21B23/10 , E21B33/16
摘要： A system for cementing a wellbore having a casing string disposed in the wellbore is provided. The system includes a cement tool, a fiber optic cable, and a computing device. The cement tool is operable to be deployed down the wellbore through a casing string from a surface during cementing process of the wellbore. The cement tool includes a tool sensor. The fiber optic cable is coupled with the cement tool such that the fiber optic cable spans the wellbore from the cement tool to the surface. The fiber optic cable is communicatively coupled with the tool sensor. The computing device is communicatively coupled with the fiber optic cable and is operable to receive and process signals from the tool sensor via the fiber optic cable during the cementing process.
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公开(公告)号：US20210033526A1
公开(公告)日：2021-02-04
申请号：US16332317
申请日：2017-12-29
IPC分类号： G01N21/3581 , E21B49/08
摘要： An apparatus is disclosed for generating electromagnetic waves such as terahertz waves. The apparatus may comprise a finger structure having a plurality of conductive lines, wherein at least two of the plurality of conductive lines is separated by photosensitive material, a plurality of detectors, and a capacitor having a plurality of conductive lines separated by a dielectric material. Light from a laser incident on the photosensitive material causes free carriers in the photosensitive material to move to a conduction band and be accelerated by a voltage across the conductive lines of the finger structure applied by the capacitor to produce the terahertz waves.
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10.发明申请公开(公告)号：US20160040530A1
公开(公告)日：2016-02-11
申请号：US14440416
申请日：2014-04-30
CPC分类号： E21B47/18 , E21B47/123 , G01V1/226 , G01V11/002
摘要： An example telemetry signal detection apparatus may include a optical splitter, a light source optically coupled to the optical splitter, and a light detector optically coupled to the optical splitter. The apparatus further may include a reference loop optically coupled to the optical splitter and a sensor loop optically coupled to the reference loop and the optical splitter. The reference loop may be contained within a reference loop enclosure. The sensor loop and reference loop may comprise a zero-area Sagnac loop with folded optical fiber or dual fiber cable configurations.
摘要翻译： 示例遥测信号检测装置可以包括光分路器，光学耦合到光分路器的光源以及光耦合到光分路器的光检测器。 该装置还可以包括光耦合到光分路器的参考环路和光耦合到参考环路和光分路器的传感器环路。 参考回路可以包含在参考回路外壳内。 传感器回路和参考回路可以包括具有折叠光纤或双光缆配置的零区域Sagnac回路。
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