EM Downhole Link TYPHOON7 consists of a downhole PCB and surface PCB designed to easily fit into the existing MWD system to provide the EM capabilities. The heart of the downhole transmitter is a DSP chip which handles the signal generation and any communication protocol. The signal generated can be made to any shape and form to fit customer’s requirement, although usually it is a sinusoid. The transmission can be an FM, PM, AM, or any combination of these. The receiver/filter/amplifier is a single board, which can be mounted inside existing MWD surface equipment. The receiver provides digitized filtered signal. The two boards are fully programable. 

DOWNHOLE TRANSMITTER

Transmitter frequency: 1-25 Hz

Transmission Power: 1-50 W, 150W

Power Transfer Efficiency: over 90%

Output Signal Amplitude: 3-10Vrms 

Max Environmental Temperature: 150 DegC standard, 175 DegC extended

Vibration: 15g RMS (15-1000 Hz) 

Shock: 1000g, 1ms, 1/2 Sine 

Practical Data Rate: 1 to 10 bps, up to 40bps (system capability) 

Transmission Modulation: PM, FM, AM (optional) 

ADUSTABLE PARAMETERS

Data Rate 

Transmission Protocol 

Frequency 

Current Limit and Power Output 

Data Sequences 

Waveform 

Modulation 

The transmitter can be configured to 2 modes: 

1. Low Power Mode: up to 50W

2. High Power Mode:  150W 

SURFACE AMPLIFIER

Analog high end programable filters 

Data output in analog or through 12 bit ADC stream 

Programmable communication protocol