Patent ID: 7658229
Filing Date: 2010-02-09
Classification: E21B,Y10T

Abstract:
1. A combination two-way control valve and continuous injection valve for use in a system for continuously producing liquids from an oil or gas well comprising: an upper seal, a middle seal, and a lower seal on the exterior of the two-way valve, wherein the seals are adapted to seal the two-way valve in a pocket in a side pocket mandrel; a radial gas port located between the upper and middle seal; a radial vent port located between the middle and lower seal; a chamber port located below the lower seal; a pilot valve section, a main valve section, and a channel from the gas port to the pilot valve section, a latch device secured to the two-way valve, wherein the latch device is adapted to secure the two-way valve in a side pocket mandrel; wherein the gas port is adapted to provide injected gas having a pressure to the two-way valve; wherein the pilot valve section when actuated by an increased pressure of the injected gas opens a port to allow injected gas to actuate the main valve section to open a pathway from the gas port to the chamber port; wherein the main valve section when not actuated provides a pathway from the chamber port to the vent port; and wherein the two-way valve is configured for wire line retrieval and installation.