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    Distributed acoustic sensing system with variable spatial resolution
    82.
    发明授权
    Distributed acoustic sensing system with variable spatial resolution 有权

    公开(公告)号：US09869795B2

    公开(公告)日：2018-01-16

    申请号：US14907790

    申请日：2013-08-30

    Applicant: Halliburton Energy Services, Inc.

    Inventor： Mikko Jaaskelainen

    IPC: G01V11/00 ,  G01V8/10 ,  E21B47/00 ,  E21B47/10 ,  G01V1/42 ,  E21B47/14

    CPC classification number: G01V11/00 ,  E21B47/00 ,  E21B47/101 ,  E21B47/14 ,  G01V1/42 ,  G01V8/10

    Abstract: Systems and methods for distributed acoustic sensing based on coherent Rayleigh scattering are disclosed herein. A system comprises a pulse generator, an optical fiber coupled to the pulse generator, an interferometer coupled to the optical fiber, a photodetector assembly coupled to the interferometer, and an information handling system, which activates two optical gain elements so as to vary the optical path length of the interferometer. A method comprises sending an optical pulse down an optical fiber, splitting backscattered light from the optical pulse into a first backscattered pulse and a second backscattered pulse, activating a first optical gain element and a second optical gain element, sending the first backscattered pulse into a first arm of an interferometer, sending the second backscattered pulse into a second arm of an interferometer, combining the first and second backscattered pulses to form an interferometric signal, and receiving the interferometric signal at a photodetector assembly.

    Pressure-Controlled Downhole Actuators
    83.
    发明申请
    Pressure-Controlled Downhole Actuators 审中-公开

    公开(公告)号：US20180010619A1

    公开(公告)日：2018-01-11

    申请号：US15546602

    申请日：2015-02-26

    Applicant: Halliburton Energy Services, Inc.

    Inventor： Mikko Jaaskelainen

    IPC: F15B11/10 ,  F15B15/22 ,  E21B23/04 ,  F15B15/24 ,  F15B15/20

    Abstract: A single-use pressure-controlled actuator for downhole well tools or mechanisms is provided. The actuator is configured for control of activation/deactivation by agency of wellbore fluid pressure (e.g., pressure levels of drilling fluid or drilling mud in the wellbore). The actuator is further configured for hydraulic actuation by agency of the wellbore fluid. The actuator comprises a plunger displaceably mounted on a sealed cylinder body, with a non-reclosable frangible device closing off wellbore fluid access to an interior of the cylinder body. The frangible device is configured for automatic in response to exposure of wellbore fluid pressures exceeding a predetermined activation threshold. Failure of the frangible device causes exposure of the plunger to the wellbore fluid, resulting in actuated movement of the plunger by hydraulic action of the wellbore fluid.

    MONITORING A WELL FLOW DEVICE BY FIBER OPTIC SENSING
    86.
    发明申请
    MONITORING A WELL FLOW DEVICE BY FIBER OPTIC SENSING 审中-公开
    通过光纤感光监测一个较好的流动装置

    公开(公告)号：US20160153277A1

    公开(公告)日：2016-06-02

    申请号：US14904672

    申请日：2013-08-07

    Applicant: HALLIBURTON ENERGY SERVICES, INC.

    Inventor： Mikko Jaaskelainen ,  David Andrew Barfoot

    IPC: E21B47/12 ,  E21B47/00

    CPC classification number: E21B47/123 ,  E21B47/0007

    Abstract: Monitoring a well flow device by fiber optic sensing. A system includes processing circuitry configured to be disposed downhole in a wellbore. The processing circuitry is configured to receive a downhole parameter signal that represents an operational parameter of a well flow device in the wellbore, and perturb a fiber optic cable, based on the downhole parameter signal, to transmit the downhole parameter signal over the fiber optic cable. A fiber optic sensing system is coupled to the processing circuitry via the fiber optic cable. The fiber optic sensing system is configured to be disposed outside of the wellbore to extract, from the fiber optic cable, the downhole parameter signal.

    Abstract translation: 通过光纤传感监测井流量装置。 一种系统包括配置成在井眼中设置在井下的处理电路。 处理电路被配置为接收表示井眼中的井流装置的操作参数的井下参数信号，并且基于井下参数信号扰乱光纤缆线，以通过光纤电缆传输井下参数信号 。 光纤感测系统经由光纤电缆耦合到处理电路。 光纤感测系统被配置为设置在井筒的外部，以从光缆提取井下参数信号。

    Pumping of optical waveguides into conduits
    87.
    发明授权
    Pumping of optical waveguides into conduits 有权
    将光波导泵入导管

    公开(公告)号：US09291789B2

    公开(公告)日：2016-03-22

    申请号：US14399047

    申请日：2013-12-17

    Applicant: HALLIBURTON ENERGY SERVICES, INC.

    Inventor： Maximo G. Michaelis ,  Glenn McColpin ,  Brian V. Park ,  Mikko Jaaskelainen

    IPC: G02B6/00 ,  G02B6/44 ,  E21B41/00

    CPC classification number: G02B6/4464 ,  E21B7/20 ,  E21B41/00 ,  E21B47/0002 ,  G01V11/002

    Abstract: An optical waveguide pumping method can include pumping a liquid fluid through a conduit, thereby pumping an optical waveguide into the conduit, and operating a fluid recovery device, so that fluid pressure in the conduit is less than a vapor pressure of the fluid and/or fluid temperature in the conduit is reduced from above a boiling point temperature of the fluid to below the boiling point temperature of the fluid. An optical waveguide pumping system can include a pump which pumps a liquid fluid into a conduit and thereby pumps an optical waveguide into the conduit, and a fluid recovery device connected to the conduit. The fluid recovery device reduces fluid pressure in the conduit to below a vapor pressure of the fluid and/or reduces fluid temperature in the conduit from above a boiling point temperature of the fluid to below the boiling point temperature of the fluid.

    Abstract translation: 光波导泵送方法可以包括通过导管泵送液体流体，从而将光波导泵送到导管中，并且操作流体回收装置，使得导管中的流体压力小于流体的蒸汽压力和/或 导管中的流体温度从流体的沸点温度以上降低至低于流体的沸点温度。 光波导泵送系统可以包括泵，其将液体流体泵送到导管中，从而将光波导泵送到导管中，以及连接到导管的流体回收装置。 流体回收装置将导管中的流体压力降低至低于流体的蒸汽压力，和/或从流体的沸点温度高于流体的沸点温度降低管道中的流体温度。

    APPARATUS AND METHOD OF MULTIPLEXED OR DISTRIBUTED SENSING
    88.
    发明申请
    APPARATUS AND METHOD OF MULTIPLEXED OR DISTRIBUTED SENSING 有权
    多路复用或分布式感测的装置和方法

    公开(公告)号：US20160003648A1

    公开(公告)日：2016-01-07

    申请号：US14769977

    申请日：2013-08-07

    Applicant: HALLIBURTON ENERGY SERVICES, INC.

    Inventor： David Andrew Barfoot ,  Glenn MCCOLPIN ,  Mikko Jaaskelainen ,  John Maida

    IPC: G01D5/353

    CPC classification number: G01D5/35312 ,  G01D5/35306 ,  G01D5/35316 ,  G01D5/35338 ,  G01D5/35361

    Abstract: Various embodiments include apparatus and methods to measure a parameter of interest using a fiber optic cable. The parameters can be provided by a process that provides for multiplexed or distributed measurements. A multiplexed or a distributed architecture can include acoustic sensor units placed selectively along an optical fiber such that the acoustic sensor units effectively modulate the optical fiber with information regarding a parameter to provide the information to an interrogator coupled to the optical fiber that is separate from the acoustic sensor units.

    Abstract translation: 各种实施例包括使用光纤电缆测量感兴趣参数的装置和方法。 这些参数可以由提供复用或分布式测量的过程提供。 复用或分布式架构可以包括沿着光纤选择性放置的声学传感器单元，使得声学传感器单元有效地调制具有关于参数的信息的光纤，以将信息提供给耦合到光纤的询问器，该询问器与 声传感器单元。

    In-Situ System Calibration
    89.
    发明申请
    In-Situ System Calibration 审中-公开
    现场系统校准

    公开(公告)号：US20150323700A1

    公开(公告)日：2015-11-12

    申请号：US14802943

    申请日：2015-07-17

    Applicant: Halliburton Energy Services, Inc.

    Inventor： Mikko Jaaskelainen

    IPC: G01V13/00

    CPC classification number: G01V13/00 ,  G01K11/32 ,  G01K15/005

    Abstract: A method for re-calibrating installed downhole sensors used in hydrocarbon wells by the application of a calibration string inserted in the wells and deployed in close proximity to the installed downhole sensor.

    Abstract translation: 一种用于重新校准在油气井中使用的安装的井下传感器的方法，该方法是通过施加插入井中的校准柱并且部署在靠近安装的井下传感器的位置。

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