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High Speed ​​Continuous Gyro Inclinometer System

A gyro inclinometer and gyroscope technology, applied in the direction of measurement, wellbore/well parts, earthwork drilling and production, etc., can solve the problems of long measurement time, low efficiency, inconvenient inclinometer, etc., achieve flexible use, wide application, Effect of improved initial alignment accuracy

Active Publication Date: 2017-02-08
北京三孚莱石油科技有限公司
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this instrument is that the gyro must be stationary during the measurement, so the measurement time is long and the efficiency is low
It is inconvenient for general oil well inclination measurement

Method used

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  • High Speed ​​Continuous Gyro Inclinometer System
  • High Speed ​​Continuous Gyro Inclinometer System
  • High Speed ​​Continuous Gyro Inclinometer System

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Embodiment Construction

[0038] see Figure 1-7 , the invention discloses a high-speed continuous gyro inclinometer system, comprising a downhole instrument system 1, a ground instrument host 2 and a computer 3, the downhole instrument system is connected to the ground instrument host through a single-core cable 4, and the ground instrument The host is communicatively connected with the computer, for example, through a USB cable, and the computer can be a general-purpose notebook computer, an industrial computer or a military computer. The computer is equipped with special calculation software for the high-speed continuous gyro inclinometer system, and the software is used for real-time display of measurement information, calculation results, and data and images processed by wellbore trajectory calculation. The computer can be connected to a printer for the output of measurement results and calculation results.

[0039] One of the core components of the downhole instrument system is an inertial body ...

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Abstract

The invention provides a high-speed continuous gyroscopic?inclinometer system comprising a subsurface instrument system consisting of a coasting body, a pipe locating circuit and a pressure-resistance shell assembly, a surface instrument host and a computer with gyroscopic measuring and calculating software. The coasting body includes a fixed support and a rotation frame which is installed on the fixed support and can rotate freely with a dead axis. Based on the right-handed Cartesian rectangular coordinate system (x y z) with the rotation axis of the rotation frame as Z axis and radial X and Y axes, the rotation frame is fixedly provided with an accelerometer Ax and an accelerometer Ay with sensitive axes parallel to the X and Y axes, a gyroscope Tx and a gyroscope Tz with sensitive axes parallel to the X and Z axes, and an angle sensor. The rotation frame can be further equipped with an auxiliary gyroscope and an auxiliary accelerometer. The system realize automatic north-seeking and high-precision high-speed continuous measuring of the hole deviation angle, the azimuthal angle and the tool face angle of boreholes. The north-seeking precision and the measuring accuracy & effectiveness of the system can exceed those of the other similar products tremendously.

Description

technical field [0001] The invention relates to a high-speed continuous gyro inclinometer system, which belongs to the technical fields of wellbore trajectory measurement, directional well inclination measurement and mine inclinometer measurement in petroleum drilling and production engineering, and can be used for fast and accurate measurement of wellbore trajectory of oil wells, mines, etc. It can also be applied to directional measurement of sidetracking directional wells, cluster wells, offshore drilling platforms, etc., and real-time placement of tool faces. Background technique [0002] Since the 1970s, the gyro-inclinometer technology has gone through the stages of photographic, frame, and dynamic adjustment. The compass, attitude reference, strapdown navigation, and platform are used in the measurement. At present, the compass type is widely used, such as the MDRO series gyroscope, which consists of a two-axis dynamic tuning gyroscope and two single-axis acceleromete...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B47/022
CPCE21B47/022
Inventor 吕轴薛祖瑞杨生员李海峰吕胜飞舒红梅吕一钦
Owner 北京三孚莱石油科技有限公司
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