Petroleum Technology Digest: Two-piece, flow-thru plunger offers benefits for unloading gas wells ///

ChevronTexaco has successfully employed two-piece, flow-through plungers in South, East and West Texas. By virtually eliminating the shut-in time required for a traditional plunger, lost production is minimized, fewer liquids are forced back into the formation, and less surface fluctuations are encountered. In one well where a capillary string installation was replaced, production increased and $1,740 per month of chemical costs were eliminated. In a 10-well program in West Texas (replacing standard plunger lift in eight wells and two flowing wells), production increased 1,200 Mcfd.

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