Unlock instant, AI-driven research and patent intelligence for your innovation.

Control system suitable for continuous fiber gyrolevel for oil well

A technology of fiber optic gyroscope and control system, which is applied in the directions of measurement, wellbore/well components, earthwork drilling and production, etc. It can solve the problems of signal deformation, delay, and the inability to transmit parameters in time, so as to improve the calculation speed and improve the efficiency. Time, the effect of meeting the design requirements

Inactive Publication Date: 2007-08-29
BEIHANG UNIV
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the difference between downhole and uphole environment, the transmission of collected data causes signal deformation, delay, etc., and some parallel parameters cannot be transmitted to the uphole computer in time for real-time processing, which affects the accuracy of wellbore trajectory formation.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Control system suitable for continuous fiber gyrolevel for oil well
  • Control system suitable for continuous fiber gyrolevel for oil well
  • Control system suitable for continuous fiber gyrolevel for oil well

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0031] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0032] The fiber optic gyro oil well continuous inclinometer is an inertial measurement system based on inertial navigation technology. It is a completely autonomous real-time and fast measuring instrument that does not depend on any external equipment. The basic principle is based on Newton's relative inertial space mechanics law, using the angular velocity and acceleration of the optical fiber gyroscope and accelerometer sensitive instrument during the movement along the oil well borehole, and through real-time measurement and calculation, the inclination angle of each position of the oil well borehole is obtained. , azimuth, and corresponding depth increments are used to describe the wellbore trajectory of the oil well. The fiber optic gyro oil well continuous inclinometer includes surface equipment and downhole equipment, and the downhole equipment is com...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The control system suitable for continuous fiber gyrolevel for oil well includes a computer, a well controller, and a gyrolevel calibrator. The well controller consists of processor DSP, programmable logic unit CPLD, communication circuit and power source circuit; and the gyrolevel calibrator set inside the computer includes a parameter setting module, an inert sensor testing module, a gyrolevel calibrating module and a continuous measurement module. The present invention completes the real-time calculation on the collected data in the well with the modular well controller, the up transmission to the computer through the communication circuit and the oil wellbore locus output treatment in the computer and has effectively raised precision.

Description

technical field [0001] The invention relates to a system for controlling and processing information collected by a sensor, more particularly, a control system for an optical fiber gyro oil well continuous inclinometer based on inertial measurement technology. Background technique [0002] As the world's oil resources become more and more tense, the precise measurement of the wellbore trajectory of oil wells is becoming more and more important, which requires high-precision oil well inclinometers. At present, the inclinometers widely used in domestic oil fields all use fluxgate sensors or mechanical gyro sensors. Due to the limitations of these two sensing technologies, the existing instruments have disadvantages such as insufficient accuracy, limited application range, and short life. The lightweight solid-state structure of the fiber optic gyroscope makes it have the advantages of high reliability, long life, shock and vibration resistance, instant start, low power consumpt...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): E21B47/02
Inventor 张春熹高爽颜廷洋朱奎宝李敏罗光明简红清李晨牛清红
Owner BEIHANG UNIV