Patent ID: 9353588
Filing Date: 2016-05-31
CPC Classification: E21B

Claim Text:
1. A device for examining a tubular channel, said device comprising: a buoyancy system configured to adjust a buoyancy of the device, at least one first sensor; a pressure system configured to generate pressurized fluid or that contains pressurized fluid; a vent line; a three-way valve fluidly coupled to the buoyancy system, pressure system and the vent line, wherein the three-way valve controls fluid flow between the pressure system and the buoyancy system and between the buoyancy system and the vent line to thereby adjust the buoyancy of the device; and a processor communicatively coupled to the at least one first sensor and the three-way valve configured to determine the position of the device and to generate a control signal based on data received from the at least one first sensor for controlling the three-way valve via the control signal, to thereby adjust the buoyancy of the device; and at least one second sensor for examining said tubular channel.