One complete telemetry chain, bottomhole to driller's cabin
The mud channel is narrow, noisy, and keeps changing with depth and fluid properties. Our encoding, decoding and transmission scheme is built for exactly those conditions, and every figure we quote carries its test conditions.
Technology
Four technical notes: encoding and modulation, noise-tolerant decoding, data rate, and performance in difficult wells.
Pulse encoding & modulation
There is no cable across the thousands of metres between the tool and the ri…
02Noise rejection & signal recovery
In what the surface pressure transducer records, the downhole data is usuall…
03Throughput
On a channel whose bandwidth is fixed by physics, there are two ways to move…
04Difficult hole conditions
The lab and the rig are not the same place: lost-circulation material, heavy…
Products
Downhole equipment
Pulsers in six types, mud turbine generator, directional probe, natural and azimuthal gamma, downhole battery barrel.
SurfaceSurface unit
Universal surface unit, also runs third-party MWD tools. Acquisition controller, cabinet power, driller's display, depth and hookload, pressure acquisition.
SoftwareDecoding software
Surface decoding software with manual sync, noise spectrum view and raw data playback.