Flexible plunger apparatus for free movement in gas-producing we

Details Flexible plunger apparatus for free movement in gas-producing we Flexible plunger apparatus for free movement in gas-producing we

1996-10-23

1999-02-09

Thorpe, Timothy

Pumps

Drilled well free piston-type pump

92255, 92256, 92137, 403300, 403314, F04B 4712

Patent

active

058685545

ABSTRACT:
A flexible plunger apparatus includes an elongated flexible member having a pair of opposite end portions and a longitudinal length extending between the opposite end portions, with the flexible member being adapted to flex in transverse relationship to its length and to undergo free movement through a hollow tubing of a well. The apparatus also includes a physical barrier producing mechanism attached to and extending between the opposite end portions of the flexible member for substantially separating gas under pressure in the tubing below the lower end portion of the flexible member from a slug of liquid in the tubing above the upper end portion of the flexible member. The physically barrier producing mechanism is carried along the interior surface of the tubing in a substantially sealing relationship therewith as the flexible member undergoes free movement through the tubing of the well in response to the pressure of the gas and opening of the tubing of the well at the earth surface. The transverse flexibility of the flexible member adapts the apparatus to move through hollow tubing which has an angular, helical or wavy curvature.

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Multi Products Co. Rigid Plungers--2 Sheets.
Well Master Corporation Rigid Plungers--2 Sheets.
Production Control Serviced Rigid Plungers and Bumper Springs--6 Sheets.
Ferguson Beauregard Inc Rigid Plungers--2 Sheets.

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