First, what are the oil production equipment
At present, China has become one of the world's largest energy consumption countries, the domestic energy gap is becoming more and more serious, and the oil companies themselves, although the production and collection of energy, but also the largest energy consumers, especially its collection equipment in operation need to consume a lot of energy, only to further improve energy conservation and consumption reduction technology, and constantly innovate the process of crude oil collection. Can stabilize our energy consumption problem.
Oil production machinery is mainly divided into two categories:
1. Production machinery of rod production system, including beam pumping unit, belt pumping unit, chain pumping unit, special type pumping unit, etc., rod production system has two disadvantages:
(1) Complex equipment, low efficiency, high energy consumption.
(2) There is a serious phenomenon of bias wear in general, and the oil well repair exemption period is short, resulting in high underground operation costs.
2, rodless oil production system production machinery, mainly including submersible pump, hydraulic piston pump, etc. Rodless oil production system also has two shortcomings:
(1) First, low efficiency and high energy consumption.
(2) The second is poor universality.
Second, what is the working principle of oil production equipment
1. The working principle of rod production system
Its working principle is: when the piston goes up, the discharge valve is closed under the action of the liquid column in the tubing, and a section of liquid equivalent to the stroke length of the piston is discharged. At the same time, the liquid column pressure in the barrel is reduced, and under the action of the liquid column pressure in the annular space of the tubing and casing, the suction valve is opened, and the liquid in the well enters the pump and occupies the space given by the piston. When the piston goes down, the liquid column in the pump barrel is compressed, and the pressure is increased. When the pressure is equal to the liquid column pressure in the annular space, the suction valve is closed by its own weight. When the piston continues to go down, the pressure in the pump continues to rise, and when the pressure in the pump exceeds the pressure of the liquid column in the oil pipe, the liquid column in the pump is the top of the discharge valve and transferred to the oil pipe.
2. Working principle of rodless oil production system
The underground part is the main unit of hydraulic piston pump, which is composed of three parts: oil motor, hydraulic piston pump and slide valve control mechanism. The ground power pump sends the power liquid to the underground through the tubing to drive the cylinder and the reversing valve, thus driving the pumping oil pump.