Other

R&b Industrial Supply Company

Mariusz Thomas Zientarski

Daniel Maurice Lerner

Andre Orban

Charles Ian McAndrew

Vadim Buryakovsky

Vladimir Rozenblit

A well-bore downhole data logging signal transmission apparatus having: a signal transmitter at a drill bit on a drill string; a receiver at a drill bore head, a generator places a carrier current on the drill string with the drill bit; the transmitter places signal pulses; the receiver senses the pulses; the pulses have a duration less than 10 ms.

Downhole telemetry signalling apparatus

A method and a system may be provided. The system may include: a drilling pipe that comprises an inner space; a telemetry system, arranged to (a) sense drilling information about an underground drilling process that is executed by the system, and (b) transmit the drilling information to an entity that is located outside the drilling pipe; a rechargeable battery arranged to provide power to at least one telemetry module of the telemetry system; and a controller, arranged to control a provision of power to the at least one telemetry module and to control a charging of the rechargeable battery. Wherein the at least one telemetry module, the rechargeable battery and the controller are shaped and sized to be positioned within the inner space of the drilling pipe. The battery and controller can also be mounted in the drilling collar.

Rechargeable battery controller

A telemetry tool having position and direction sensors, a power supply, a signal receiver and a signal emitter is mounted in a drill string adjacent to a drill bit. A base unit at the surface generates, and transmits into the geological formation, a carrier signal, which may be a DC carrier signal. The geological formation provides a current path between the carrier current generator and the downhole end at which a portion of the carrier current is received by the telemetry tool. The drill string defines a relatively low resistance return signal conductor. The telemetry unit superimposes a time varying signal on the carrier current. The time varying signal includes a recognition sequence, followed by a data string which may include compass direction, azimuth dip, rotational speed, acceleration, and so on. The base unit strips the signal off the carrier current, and reads the code.

Growing community of inventors

Edmonton, Canada

Mariusz Thomas Zientarski