SYSTEMS AND METHODS FOR ADJUSTMENT OF DRILLING PRESSURE AND PHASE BALANCING Russian patent published in 2017 - IPC E21B44/04 E21B10/26 E21B10/61 

FIELD: oil and gas industry.

SUBSTANCE: arrangement of the drill string bottom contains the first sensor adapter, located near the drill bit and performed with the ability to control one or more operating parameters, related to the drilling bit, the second sensor adapter, separated from the first sensor adapter along the axis, and located near the reamer and executed with the ability to control one or more of the operating parameters of the reamer, and the communication module, connected to the first and the second sensor adapter through the communication means and made with the ability to transmit along them one or more signals of corrective actions in case, if one or more of the drill bit and the reamer operating parameters exceeds the specified operating level, and one of the hydraulic adapter and the downhole propulsion plant, installed between the drill bit and the reamer and connected to the communication module to receive one or more corrective actions signals and activation, in response to this, the load distribution balancing between the bit load and the load to the reamer.

EFFECT: load balancing and hydraulic power distribution between the individual downhole cutting tools.

17 cl, 5 dwg