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    • 71. 发明申请
    • SEISMIC CABLE, SYSTEM AND METHOD FOR ACQUIRING INFORMATION ABOUT SEISMIC, MICROSEISMIC AND MECHANICAL VIBRATION INCIDENTS IN A WELL
    • 地震电缆,系统和方法获取有关地震,微观和机械振动事故的信息
    • WO2014199300A3
    • 2015-02-05
    • PCT/IB2014062101
    • 2014-06-10
    • READ AS
    • KJOS TORE
    • G01V1/40E21B47/12G01V1/18G01V1/22
    • G01V1/40G01V1/189G01V1/226
    • A seismic sensor cable 10 for lowering into a subterranean well 15 for acquiring information about seismic, microseismic and mechanical vibration incidents in the subterranean well 15, where the device comprises a first portion 20 that is elongate and has a first length with a proximal end and a distal end that are to be lowered down into a lower part of the subterranean well 15, the first portion 20 having a plurality of electric or electromechanical multicomponent seismic sensors 25 that are connected and distributed over large parts of its first length, and wherein the seismic profiling device 10 further comprises a second portion 30 that is elongate and has a second length with a proximal end that is to be held above the subterranean well 15 and a distal end that is to be lowered down into the upper part of the subterranean well 15, said second portion 30 comprising an optical fibre 35 that runs along large parts of said second portion 30, and an electric cable 40 for conducting electric power from the proximal end to said seismic sensors in the first portion 20, and a connector 45 for connecting the proximal end of the first portion 20 to the distal end of the second portion 30. The invention also comprises a system and a method for acquiring information about seismic, microseismic and mechanical vibration incidents in the subterranean well 15.
    • 地下传感器电缆10,用于下降到地下井15中,用于获取关于地下井15中的地震,微震和机械振动事件的信息,其中该装置包括第一部分20,该第一部分20是细长的并具有第一长度和近端, 要向下降到地下井15的下部的远端,第一部分20具有多个电气或机电多组分地震传感器25,其连接并分布在其第一长度的大部分上,并且其中 地震剖面装置10还包括第二部分30,该第二部分30是细长的并且具有第二长度,其中近端将被保持在地下井15的上方,并且远端将被下降到地下井的上部 如图15所示,所述第二部分30包括沿所述第二部分30的大部分延伸的光纤35和用于导电的电缆40 第一部分20中的从近端到所述地震传感器的电力功率,以及用于将第一部分20的近端连接到第二部分30的远端的连接器45.本发明还包括一种系统和方法, 获取关于地下井15的地震,微震和机械振动事件的信息。
    • 74. 发明申请
    • IDENTIFYING REFLECTION ACOUSTIC SIGNALS
    • 识别反射声学信号
    • WO2014099743A1
    • 2014-06-26
    • PCT/US2013/075316
    • 2013-12-16
    • WESTERNGECO LLCSCHLUMBERGER CANADA LIMITEDWESTERNGECO SEISMIC HOLDINGS LIMITED
    • WELKER, Kenneth E.
    • G01V1/38G01V1/22
    • G01V1/001G01V1/003G01V1/3835
    • Various implementations described herein are directed to identifying reflected acoustic signals. In one implementation, a method may include receiving initial positions of an acoustic positioning source and an acoustic positioning receiver of an acoustic positioning system in a seismic spread. The method may also include calculating an expected travel difference between the acoustic positioning source and the acoustic positioning receiver. The method may further include receiving an acoustic positioning signal from the acoustic positioning receiver. The method may additionally include calculating an actual travel difference between the acoustic positioning source and the acoustic positioning receiver based on the acoustic positioning signal. The method may further include comparing the actual travel difference to the expected travel difference. The method may also include identifying whether the acoustic positioning signal is a reflected positioning signal based on the comparison.
    • 本文描述的各种实施方式涉及识别反射的声信号。 在一个实现中,方法可以包括在地震展开中接收声学定位源的声学定位源和声学定位接收器的初始位置。 该方法还可以包括计算声学定位源和声学定位接收器之间的预期行进差异。 该方法还可以包括从声学定位接收器接收声学定位信号。 该方法可以另外包括基于声学定位信号计算声学定位源和声学定位接收器之间的实际行驶差异。 该方法还可以包括将实际行驶差与预期行驶差进行比较。 该方法还可以包括基于比较来识别声学定位信号是否是反射的定位信号。
    • 75. 发明申请
    • FIBRE OPTIC CABLE FOR ACOUSTIC/SEISMIC SENSING
    • 用于声/光检测的光纤电缆
    • WO2014064460A3
    • 2014-06-12
    • PCT/GB2013052795
    • 2013-10-25
    • OPTASENSE HOLDINGS LTD
    • CRICKMORE ROGERHILL DAVID
    • G01H9/00G01D5/353G01L1/24G01V1/20G01V1/22
    • G01H9/004G01D5/35358G01L1/242G01V1/208G01V1/226
    • This application relates to fibre optic cable structures that are suitable for distributed acoustic sensing, and which may usefully be used for seismic monitoring/detection. The cable structures provide good sensitivity may further exhibit a directional sensitivity and thus can be used to discriminate between stimuli acting on the cable in different directions. One such fibre optic cable comprises a core structure (202, 203, 204) with an optical fibre wound around the periphery of the core structure. The core comprises a mass(203)which is moveable in a preferred direction within the cable such that movement of said mass in said preferred direction causes a change in length of the fibre wound around the periphery of the core.
    • 本申请涉及适用于分布式声学传感的光纤光缆结构,并且其可以有用地用于地震监测/检测。 提供良好灵敏度的电缆结构可以进一步表现出方向灵敏度,并且因此可以用于区分在不同方向上作用在电缆上的刺激。 一种这样的光缆包括具有围绕芯结构的外围缠绕的光纤的芯结构(202,203,204)。 所述芯包括质量块(203),所述质量块(203)能够在所述电缆内的优选方向上移动,使得所述质量块在所述优选方向上的移动引起缠绕在所述芯的外围周围的所述纤维的长度的变化。