CABLE SERVICE CHANNEL AND SYSTEM OF TELEMETRY FOR DRILLING STREAM, AND METHOD OF WELLS DRILLING (VERSIONS) Russian patent published in 2010 - IPC E21B47/12 E21B7/00 

FIELD: oil and gas industry.

SUBSTANCE: invention relates to driven telemetre systems in drilling pipes and to passing of signals through drilling column (DC). Cable service channel (SC) for DC includes located at a distance from each other adapter sub into DC and cable, connecting adapter sub for passing (AS) of signal between them. Cable service channel (SC) can be formed by sections of well tube connected to DC between AS for creation of tubular SC, by means of what cable CC is installed line of connection CC for passing of signal by CD. Cable CC can be also located in wireless section of DC located between AS, by means of what CC is installed communication line for passing of signal for wireless of wireless of DC. Inductive switching devices preferentially used for connection through AS and hard-wire section of well tubes. The other object of cable connection is used wireless transceiver in well or near by surface.

EFFECT: reliability grow and speed of operation of telemetering system ensured by advance of probability of failures in system of well tube hard-wire.

41 cl, 14 dwg