In order to solve the problem of the fiber optical gyro's (FOG) long-time measurement error in terms of measuring well trajectory, a method based on rotation modulation along with the Y axis is proposed in this paper. The axial velocity integrated method which uses the closed-loop Kalman filter is proposed to be applied to the Measurement While Drilling (MWD) as well. In this paper, simulation results show that inertial navigation system based on rotation modulation can reduce the impact of constant drift of inertial components, and improve the long-time navigation accuracy which is 2 to 5 times better than the one without it. Simulation also shows that the accuracy of position and attitude is improved largely with the integration of axial velocity.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    On Measurement-While-Drilling based on rotational inertial navigation system


    Contributors:
    Sha Xiaoqiang, (author) / Zhao, Jianhui (author) / Li Jin, (author) / Zhang Cundu, (author)


    Publication date :

    2016-08-01


    Size :

    260607 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



    INERTIAL NAVIGATION SYSTEM

    HENDERSON GEOFFREY THOMAS | European Patent Office | 2020

    Free access

    Inertial Navigation System

    Online Contents | 2004


    Inertial navigation system

    HENDERSON GEOFFREY THOMAS | European Patent Office | 2023

    Free access

    INERTIAL NAVIGATION SYSTEM

    JOHN KEITH SHEARD / NICHOLAS MARK FAULKNER | European Patent Office | 2017

    Free access