GWD system with hydraulic link

Description.

The GWD while drilling gyroscope consists of aerospace precision fiber optic sensors and high precision quartz accelerometers. The gyroscope supports automatic north search while drilling, which allows a complete measurement of the transmitter's orientation in space. The GWD system is used to cut out windows during the construction of sidetracks.

Peculiarities.

Electromagnetic intermodular connections
High reliability of the pulse generator (service interval 600 hours of circulation)
Retrievable system design
Compatible with all products of the company in the field of M \ LWD

Applications.

Construction of vertical, directional and horizontal wells in conditions where it is not possible to work with a "magnetic" inclinometer
Emergency drilling operations near metal objects
Sidetracking
Drilling ore wells

Technical specifications.

Name	Meaning
- Diameter	48mm
- Length	71m
- Maximum temperature	0~70°С
- Maximum pressure	120MPa
- Zenith angle	0°~60° +-0.2°
- Azimuth	0°~360° +- 2°(10°more INC less than 60°)
- Deflector	0°~360° +-1°С(INC more than 5°)
- North search time	50~110sec
- Vibration	20g (sin)/10g (case)
- Time of continuous work from one battery	150h