Gas lift plunger arrangement

  • US 20060185853A1
  • Filed: 02/08/2006
  • Published: 08/24/2006
  • Est. Priority Date: 02/24/2005
  • Status: Active Grant
First Claim
Patent Images

1. A plunger for moving up and down in a tubing string in a plunger lift system for an oil and gas well, said plunger having a gas seal arrangement comprising:

  • an elongated plunger body having an upper end and a lower end, said plunger having a longitudinal axis, with a plurality of circumferentially grooves spaced longitudinally apart on an outer surface of said plunger body;

    a longitudinal bore arranged within said plunger, extending from an opening in said lower end of said plunger; and

    an arrangement of fluid passageways extending from said bore to said grooves in said outer surface of said plunger body, to permit gas flow therethrough to direct a turbulent flow of fluid about said plunger.

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