Tubular pump has simple structure, strong and durable, at the same time, in the same size of tubing can provide maximum displacement, so the tubular pump is generally used in not too deep, need large displacement pump infusion of oil Wells. Mainly include ordinary whole bobbin type pump, anticorrosive wearing the bobbin type pump.
    Rod pump is divided into ordinary bar type pump and anticorrosive wearing bar type pump. Its biggest advantage is homework, combine with the sucker rod pump column out of the mouth of the well, and will not affect the tubing string, such operation time can save more than half, to reduce operation costs. Due to the structure characteristics of rod pump, rod pump is suitable for small displacement pump fluid, pump hung deep Wells.