Introduction

Designed specifically for high-precision guidance during well drilling operations, it boasts an integrated electromagnetic wave wireless short transmission technology capable of transmitting the near-bit azimuth gamma and near-well deviation parameters measured by the near-bit transmission short circuit to the near-bit receiving end. 

Features

• Features an exclusive design of high-speed communication module, with a maximum speed of 128bit/s, which exceeds 6 times that achieved in those currently available on the market. 
• Capable of guiding the drill bit through the reservoir in real time and correcting the drilling trajectory, while improving the drilling penetration rate, drilling efficiency and performance. 
• Complete with a section where two parameters, namely well deviation and azimuth gamma, can be measured and transmitted, with an increase allowed in resistivity. 
• Boasts a maintenance-free antenna design and temperature compensation technology to support high-precision resistivity Measurement.

Specifications

Standard Name	Standard Description
Specifications and dimensions	4 ¾	6 ¾
Outer diameter	Transmission stub 134mm Receiving stub 138mm	Transmission stub 180mm Receiving stub 208mm
Length	Transmission stub 575mm Receiving stub 1003mm	Transmission stub 630mm Receiving stub 1003mm
Temperature resistance	150℃、175℃
Pressure resistance	140MPa
Continuous working time	＞ 400h
Data transmission rate	128bit/s
Rotational speed	0‑300 r/min
Two‑parameter standard
Data	Measurement range	Accuracy	Measuring point
Well deviation (static)	0‑180°	±0.2°	0.5m
Well deviation (dynamic)	0‑180°	±1.0°	0.5m
Azimuth gamma	0‑380API	±5%	0.5m

Designed specifically for high-precision guidance during well drilling operations, it boasts an integrated electromagnetic wave wireless short transmission technology capable of transmitting the near-bit azimuth gamma and near-well deviation parameters measured by the near-bit transmission short circuit to the near-bit receiving end.