FIELD: oil producing industry.
SUBSTANCE: device is designed for pumping out liquid at high well stream watering, mineralization and viscosity under conditions leading to intensive corrosion of oil-field equipment and under conditions causing salt and paraffin deposits on underground equipment. Proposed well sucker-rod pump contains additionally protector providing electrochemical protection of inner surface of underground part of oil-field equipment and arranged between suction valve of pump and filter and consisting of body, electrode made, for instance, of magnesium alloy, perforated centering lower and upper insulamors, connecting branch pipes and connecting couplings.
EFFECT: increased efficiency of pump operating under complicated geological and technical conditions.
1 dwg
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