Combined with actual cases, the main problem of drilling is the control accuracy of the trajectory. The trajectory prediction error caused by the GWD/MWD being a certain distance away from the drill bit.
We have an IMU ER-MIMU-09, which can be installed close to the drill bit, directly installed in the drilling rig probe, and used in gyro tools or HDD tools. After adding the algorithm, it can perform measurement while drilling, and obtain information such as azimuth and attitude angle through calculation.
**Near-bit installation**
The cylindrical shape design is 120mm long, only 30mm in diameter, and weighs less than 150g. It can be placed directly near the drill bit or in the drilling rig probe.
It can improve the control accuracy of the drilling trajectory, improve the measurement accuracy, and more accurately understand the position and attitude of the drill bit to ensure the safety and efficiency of drilling.
**High precision, high performance**
Built-in high-performance three-axis MEMS gyroscope and three-axis accelerometer. The built-in gyroscope bias instability is 0.01deg/hr, and the angular velocity random walk is 0.0025°/√h. The accelerometer bias stability is 50ug, and the bias repeatability is 100ug.
High-precision measurement data can provide strong support for solving information such as azimuth and attitude angle.
**Drilling monitoring and adjustment**
The measurement data output by the IMU in real time can provide support for real-time monitoring of the attitude changes of the drill bit. Once the attitude is abnormal or deviates from the predetermined trajectory, the drilling engineer can respond quickly to emergencies during the drilling process.
**Strong environmental adaptability**
We also have high-temperature IMUs that can accurately output angular rate information and acceleration information at temperatures of -40℃~+125℃, providing new solutions for oil drilling logging, mining and other fields.
The low-power design can also effectively deal with adverse factors such as vibration, impact, magnetic field interference and high temperature during drilling.
More Technical Questions
1.Technical innovation of north finder in directional drilling
2.Effective combination of MEMS technology and north seeker
3.Research on orthogonal monitoring technology of north finder
4.Modeling and filtering in signals collected by FOG north seekers
5.Error Modeling and Compensation Analysis of North Finder Based on FFT
6.Research and use of north finder for mining drilling rigs