Wells – Processes – Producing the well
Patent
1995-12-11
1997-12-02
Suchfield, George A.
Wells
Processes
Producing the well
166 53, 166 651, 166 685, 166 69, E21B 4100, E21B 4300
Patent
active
056925670
ABSTRACT:
A portable oil recovery apparatus especially for use at de-pressurized wells. It is simple and inexpensive to build and to operate. The apparatus is small and lightweight enough so that it can be transported in a pickup truck for easy movement between well sites, and it can be installed by only two people. The apparatus employs a simple pulley system which dips a string of cups repeatedly into the well bore just deep enough to reach the oil and not deep enough to collect any water. Thus, little or no water is mixed with the recovered product, and no tubing or rods are necessary. The pulley system is automatically operated and requires little supervision and maintenance. The dipping cups are generally cylindrical, each having a central longitudinal tube extending therethrough by which the cup is supported on the string. Each cup has a lid with a plurality of depending fingers which extend down into the cup. The lid also has a central opening aligned with the tube in the cup for supporting the lid on the string in alignment with the cup. Leader cones are provided at each end of the string for guiding the travel of the dipping assembly in both directions through the pulley system.
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