Screw pump linear drive structure
According to the number of screw screw pump can be divided into single screw pump, twin screw pump, three screw pump several. It has low noise, small pressure pulsation, long life, safe and reliable work. Screw pump linear drive structure for these products is of great significance to understand the screw pump linear drive structure for the user's products have a direct help. Next we will analyze the situation. Screw Pump With the continuous development of major oilfields in China, the difficulty of oilfield development continues to increase. Many oilfield wells have successively emerged heavy oil with high sand content and high oil-gas ratio. The plunger pump can only be used for thin oil and water extraction, high sand oil, heavy oil is powerless. At present, the driving method of the screw pump oil production system is mainly the following three categories: First, the motor screw pump, also known as ground-driven screw pump: It is composed of screw pump, oil column, anchoring tools and ground-driven devices. When the system is in operation, the ground-driven device transmits the power to the production rod through decelerating and then rotates the screw pump through the production rod to lift the crude oil from the ground to the ground. 2. Electric submersible screw pump: The main units, including pumps and submersible motors, are downhole. Work, the cable from the ground to the electric submersible motor, while the oil is lifted to the wellhead through the tubing; Third, liquid screw pump: It is mainly for the pump, bypass valve, hydraulic motor and screw pump and other parts composition. Work, the pump will be high-pressure hydraulic fluid supply motor, hydraulic motor rotating screw pump work, and will be mixed with the dynamic power of the bottom of the crude oil through the tubing, casing ring hoisted to the annular space. For high sand oil, heavy crude oil, the use of screw pump is the ideal machine mining methods. No matter what kind of driving method of the screw pump, and the current use of the pumping drive power does not match, it means that there are countless pumping units scrapped, resulting in increased investment costs, increased costs, waste Resources. As China's marine industry continues to develop and pay attention, screw pump also played its hero. At home and abroad have a large number of "three pumping" based oil production wells, including the beam pumping unit, beamless pumping unit, friction-enhanced pumping unit and linear motor-driven pumping unit, etc., Are driven by the pumping unit sucker rod up and down reciprocating linear motion, which drives the rod plunger pump work.
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