SYSTEM OF ELECTRICAL WIRELESS COMMUNICATION BETWEEN DOWNHOLE TELEMETRY SYSTEM AND ADDITIONAL MEASURING MODULE Russian patent published in 2018 - IPC E21B47/12 

FIELD: measuring equipment.

SUBSTANCE: invention relates to geophysics, particularly, to telemetry systems for measuring geophysical and technological parameters during drilling and their transfer to surface. System of electrical wireless communication between a downhole measurement-while-drilling system and an additional measuring module, consisting of a downhole telemetry system including a drill string, diamagnetic pipe, downhole motor, power module, measuring module, additional measuring module separately mounted in the diamagnetic pipe of the drill string and comprising a housing with a central flushing hole, as well as electrical circuits located in recesses of the housing in its sealed part, measuring sensors, power supply and transmitting device, the additional measuring module comprises a first transceiver device, in front of which a first transceiver-transponder is located in the recess of the housing of the external pipe of the downhole motor, a second transceiver-transponder is located above it at a certain distance in the recess of the housing, and a third transceiver-transponder is located in the recess of the housing of the diamagnetic pipe connected to the downhole motor by a threaded connection, inside the diamagnetic pipe opposite the third transponder-transponder, a module of the second transceiver device of the downhole telemetry system is located. Wherein the transceiver-transponders located in the recesses of the housing of the external pipe of the downhole motor, as well as the first transceiver device are closed with seal caps of radiocarbon material.

EFFECT: simplified design, increased reliability, expanded functionality of the system to transfer information with any communication channel.

9 cl, 3 dwg