At-surface tool for pulsed-injection of liquids

Details At-surface tool for pulsed-injection of liquids At-surface tool for pulsed-injection of liquids

F - Mech Eng,Light,Heat,Weapons

15

B

F15B 21/12 (2006.01)

Patent

CA 2701261

For pulsed injection of liquids into the ground, the tool has a rotating cylinder, having through-slots. The tool has an insert, which is pressed against the rotating cylinder. As the cylinder rotates, the slots in the rotor cover/uncover the slots in the insert, creating the required pulses. By suitably shaping the slots, the pulses can have a fast rise-time from closed to open. The insert is shaped to minimize flow interference.

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