Systems include a device and a pipeline. The device includes a body. The body includes jetting elements and a sealing disc. The jetting elements include a hose, an opening, channels, and nozzles. The jetting elements are configured to direct pressurized fluid through the body for purposes of cleaning and propelling the device along the pipeline. The sealing discs are configured to maintain a seal between the body of the device and the inside wall of the pipeline.

Systems include a device and a pipeline. The device includes a body. The body includes jetting elements and a sealing disc. The jetting elements include a hose, an opening, channels, and nozzles. The jetting elements are configured to direct pressurized fluid through the body for purposes of cleaning and propelling the device along the pipeline. The sealing discs are configured to maintain a seal between the body of the device and the inside wall of the pipeline.

A device for assessing the condition of a pipeline containing a liquid is provided. The device includes an actuatable maneuvering module to generate a force sufficient to move the device from one side to another side along a horizontal plane and to move the device from top to bottom along a vertical plane, or any combinations thereof, so as to maneuver the device.

A method and system for a pipeline inspection gauge. The method may include disposing a pipeline inspection gauge in a pipeline. The pipeline inspection gauge may comprise one or more modules attached to each other and an orifice. The pipeline inspection gauge may further include a generator disposed within at least one of the one or more modules, a turbine connected to the generator through a shaft, and at least four wheels connected to an outer surface of at least one of the one or more modules. The method may further include moving the pipeline inspection gauge using an at least partially opened orifice, wherein force from fluid flow in the pipeline is transferred through the orifice to the pipeline inspection gauge to create movement and creating a positive pressure pulse by closing the at least partially opened orifice.

In some embodiments, provided is a robot for water tunnel inspection, comprising: (a) a shell, comprising an upper shell and a lower shell; wherein the upper shell and the lower shell are sized and shaped to match each other, together defining a closed cavity therewithin; (b) a camera system, configured to capture an image or video of a field of view of surrounding; (c) a lighting system, configured to provide illumination at least partially for the field of view; (d) a propulsion system, configured to provide propulsion force to the robot in water; and (e) a controlling system, configured to provide power and control operation of the robot, wherein the robot is configured to float on water and to have a center of gravity positioned lower than geometric center. Other example embodiments are described herein. In certain embodiments, the robots provide safe and efficient tunnel inspections without human operation.

A crawler robot has a proximal end section, a distal end section and a core section. Each of the proximal end section, the distal end section and core section has a hollow core. The core section has a flexible body and is surrounded by at least one balloon that is supplied by a fluid carrying conduit. The proximal end section and the distal end section are connected to fluid carrying conduits and have at least three thrust vents each for venting the supplied fluid to generate a thrust force.

A crawler robot has a proximal end section, a distal end section and a core section. Each of the proximal end section, the distal end section and core section has a hollow core. The core section has a flexible body and is surrounded by at least one balloon that is supplied by a fluid carrying conduit. The proximal end section and the distal end section are connected to fluid carrying conduits and have at least three thrust vents each for venting the supplied fluid to generate a thrust force.

Systems include a device and a pipeline. The device includes a body. The body includes jetting elements and a sealing disc. The jetting elements include a hose, an opening, channels, and nozzles. The jetting elements are configured to direct pressurized fluid through the body for purposes of cleaning and propelling the device along the pipeline. The sealing discs are configured to maintain a seal between the body of the device and the inside wall of the pipeline.

Systems include a device and a pipeline. The device includes a body. The body includes jetting elements and a sealing disc. The jetting elements include a hose, an opening, channels, and nozzles. The jetting elements are configured to direct pressurized fluid through the body for purposes of cleaning and propelling the device along the pipeline. The sealing discs are configured to maintain a seal between the body of the device and the inside wall of the pipeline.