| 摘要 |
A gas anchor is attached to the lower end of a downhole pump located downhole in a borehole so that fluid must flow from the lower borehole, into the gas anchor, to the suction of the pump, and to the surface of the ground. The gas anchor has a metal rod located within an outer housing. An annulus is formed between the housing interior and the outer surface of the rod. Both the housing and rod are made of a special alloy. The housing has a multiplicity of ports formed therein. Formation fluid located in the bottom of the borehole flows through the ports, into the housing, along the annulus between the housing and the rod, and into the pump intake. This action subjects the formation fluid to treatment prior to the fluid entering the pump suction. Accordingly, the fluid that must flow through the downhole pump, production tubing, and downstream flow lines are treated by the action of the special alloy from which the housing and central core are cast, thereby causing significant reduction in scale and corrosion of the metal surfaces that come in contact with the produced fluid.
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