Method and apparatus for removing production limiting liquid...

Details Method and apparatus for removing production limiting liquid... Method and apparatus for removing production limiting liquid...

E - Fixed Constructions

21

B

E21B 43/12 (2006.01)

Patent

CA 2609090

The apparatus includes a fluid intake check valve that connects to and allows a communicable passage between two lengths of tubing hung through the wellhead and landed at depth so that the valve is immersed below the casing perforations slightly below the desired liquid level maintenance point. On the surface, the two lengths of tubing each terminate in a launcher/receiver component. An orificed sweep-pig is propelled into one tube and sweeps the contained liquid through and out of the connected tubing developing a capillary bubble phased gas lift effect. The sweep-pig follows behind this effect, expels the trapped liquids and is captured at the second launcher/receiver. The method comprises of a timer controlled arrangement of valves that will then reverse the sweep pig to travel in the opposite direction in a repeatable alternating action configured to remove undesired liquid volumes.

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