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    • 1. 发明申请
    • BOREHOLE STRESS METER SYSTEM AND METHOD FOR DETERMINING WELLBORE FORMATION INSTABILITY
    • 井眼应力计系统和确定井筒形成不稳定性的方法
    • WO2016157051A1
    • 2016-10-06
    • PCT/IB2016/051702
    • 2016-03-24
    • SENSOR DEVELOPMENTS AS
    • GODAGER, Øivind
    • E21B49/00E21B47/06E21B47/01
    • E21B49/006E21B47/01E21B47/06
    • A wellbore stress meter system and method for determining wellbore formation instability is disclosed. The wellbore stress meter system may include a first load cell, a first pressure sensor with a pressure output signal, a wireless communication system, a cable, and a surface device. The first load cell includes a second pressure sensor with a stress output signal, a cell element including a fluid, and a first interface element in a first end of the first load cell with fluidly separated first and second surfaces. The first surface is in fluid communication with the fluid, and the first interface element moves relative to the cell element as a function of a force applied to the first surface, which compresses the fluid acting on the second pressure sensor.
    • 公开了井眼应力计系统和确定井眼形成不稳定性的方法。 井眼应力计系统可以包括第一测力传感器,具有压力输出信号的第一压力传感器,无线通信系统,电缆和表面设备。 第一测力传感器包括具有应力输出信号的第二压力传感器,包括流体的单元元件,以及具有流体分离的第一和第二表面的第一测力传感器的第一端中的第一界面元件。 第一表面与流体流体连通,并且第一界面元件作为施加到第一表面的力的函数相对于电池元件移动,其压缩作用在第二压力传感器上的流体。
    • 8. 发明申请
    • BOREHOLE STRESS METER SYSTEM AND METHOD FOR DETERMINING WELLBORE FORMATION INSTABILITY
    • 井眼应力计系统和确定井筒形成不稳定性的方法
    • WO2016159776A1
    • 2016-10-06
    • PCT/NO2015/050223
    • 2015-11-26
    • SENSOR DEVELOPMENTS AS
    • GODAGER, Øivind
    • E21B49/00E21B47/06E21B47/01
    • E21B49/006E21B47/01E21B47/06
    • A Wellbore stress meter system and method for determining wellbore formation instability, comprising a first load cell (10), a first pressure sensor (20) with a pressure output signal (20s), a wireless communication system (100), a cable (8), and a surface device (70), said first load cell (10) comprises; - a second pressure sensor (11) with a stress output signal (11s), - a cell element (12) comprising a fluid (12f), - a first interface element (13) in a first end (10a) of said first load cell (10) with fluidly separated first and second surfaces (13a, 13b,) wherein said first surface (13a) is in fluid communication with said fluid (12f), and said first interface element (13) moves relative said cell element (12) as a function of a force (F1) applied on said first surface (13a), and compresses said fluid (12f) acting on said second pressure sensor (11).
    • 一种用于确定井筒形成不稳定性的井筒应力计系统和方法,包括第一测力传感器(10),具有压力输出信号(20s)的第一压力传感器(20),无线通信系统(100),电缆(8) )和表面装置(70),所述第一称重传感器(10)包括: - 具有应力输出信号(11s)的第二压力传感器(11), - 包括流体(12f)的电池元件(12), - 所述第一负载的第一端(10a)中的第一接口元件 具有流体分离的第一和第二表面(13a,13b)的电池(10),其中所述第一表面(13a)与所述流体(12f)流体连通,并且所述第一界面元件(13)相对于所述电池元件 )作为施加在所述第一表面(13a)上的力(F1)的函数,并且压缩作用在所述第二压力传感器(11)上的所述流体(12f)。
    • 9. 发明申请
    • WELLBORE E-FIELD WIRELESS COMMUNICATION SYSTEM
    • WELLBORE E-FIELD无线通信系统
    • WO2015088355A1
    • 2015-06-18
    • PCT/NO2014/050229
    • 2014-12-10
    • SENSOR DEVELOPMENTS AS
    • GODAGER, ØivindKONG, Fan-Nian
    • H01Q1/04E21B47/12H01Q1/36H01Q9/16
    • H01Q1/04E21B47/122H01Q1/36H01Q9/16
    • Wellbore E-field wireless communication system (1), the communication system (1) comprising: - a first E-field antenna (11), and - a second E-field antenna (21), wherein the first antenna (11), and the second antenna (21) are both arranged in a common compartment (210) of a wellbore (2) and further arranged for transferring a signal between a first connector of the first E-field antenna (11) and a second connector of the second E-field antenna (21) by radio waves (Ec), wherein that the second E-field antenna (21) is arranged in a lateral wellbore (200, 300, 400), and the first and second E-field antennas (11, 21) comprises a first dipole antenna or a first toroidal inductor, the system (1) characterized in that it comprises a metallic resonator (40) surrounding the first antenna (11) and the second antenna (21).
    • 井眼电场无线通信系统(1),所述通信系统(1)包括: - 第一电场天线(11)和第二电场场天线(21),其中所述第一天线(11), 并且所述第二天线(21)都布置在井筒(2)的公共隔室(210)中,并且还布置成用于在所述第一电场天线(11)的第一连接器和所述第一电场天线 第二电场天线(21),其中所述第二电场天线(21)被布置在侧井筒(200,300,400)中,并且所述第一和第二电场天线(E) 11,21)包括第一偶极天线或第一环形电感器,系统(1)的特征在于,它包括围绕第一天线(11)和第二天线(21)的金属谐振器(40)。