Paper: Intermittent Gas Lift

In most instances there will be no question as to whether or not a well should be placed on continuous flow or intermittent flow. However, there are cases of the so called "borderline well". Reference should be made to "The Power of Gas" by Mr. C.V. Kirkpatrick for a complete analysis of the borderline well. This procedure involves an analysis of injection pressure injection gas/oil ratio and horsepower requirements. The following types of intermittent flow installations utilized in the field today are: 1. Tubing flow with a packer only (semi-closed installation), Fig. 1; 2. tubing flow with a packer and a standing valve (closed installation), Fig. 2;, 3. Tubing flow from a chamber (closed installation), Fig 3; 4. Any one of the three preceding installations in combination with a "piston" or "plunger", Fig 4.