Patent ID: 11879335
Assignee: CANOPUS DRILLING SOLUTIONS HOLDING B.V.
Field: Civil engineering (Other fields)
Classification: CPC E | IPC E

Claim 11:
12. The directional drilling system according to claim 11, wherein the control unit and the particle deflection device are configured to
during a first time period, deflect into the first channel a first majority of all abrasive particles in the stream that passes through the supply channel outlet, and
during a second time period following the first time period, deflect into the second channel a second majority of all abrasive particles in the stream that passes through said supply channel outlet, and
subsequently passing said stream from the first and second outlets into said one or more abrasive jet nozzles, wherein said velocity difference is such that in a combination section downstream of the first and second outlets, the majority deflected into the first channel during the first time period and the second majority passed into the second inlet during the second time period, together with any of said drilling fluid passed into the first and second inlets during the first and second time period, respectively, are combined into one of said stream portions, and abrasive particles passed into the first inlet during the second time period and the abrasive particles passed into the second inlet during a first time period following the second time period, together with any drilling fluid passed into the first inlet during the second time period and into the second inlet during the first time period following the second time period, respectively, into a subsequent one of said stream portions.