The belt pumping unit is an internationally leading long-stroke, low-stroke, purely mechanically driven pumping unit. It is easy to operate, maintain, and use safely. Its reliable mechanical performance makes it the most widely used beamless pumping unit in the world. It can achieve deep pumping and large-volume liquid extraction, and is particularly suitable for the exploitation of heavy oil wells. There are no exposed moving parts, and the well spacing requirement is small, with the minimum well spacing reaching 2m. Its perfect supporting process and continuous technological upgrades can continuously meet the needs of oil wells in various working conditions. Its high efficiency, safety, reliability, and energy-saving characteristics bring good economic benefits to users.
Main advantages:
1. Long stroke, low stroke frequency: Long stroke makes the pump full coefficient high and the system efficiency high; low stroke frequency can effectively reduce fatigue and wear of downhole equipment, extend the maintenance-free period of oil wells, and have low operating costs;
2. Pure mechanical transmission, smooth switching; large load, long life, heavy-duty wide belt transmits power, and its elastic buffer can reduce the switching impact and make the downhole equipment run smoothly;
3. Low required torque: Since the force arm is only 0.31-0.43m, the torque requirement is greatly reduced. It is equipped with a small power motor and a small torque reducer, which saves 10-40% energy than conventional walking beam machines;
4. Optimized structural design ：Disc brake system ensures safety; overall displacement repair; folding structure is easy to install and transport; the moving parts of the whole machine are equipped with safety shields and guardrails, which are safe and convenient to operate and maintain;
5. Gravity symmetrical balance, pure mechanical balance, convenient and simple balance adjustment;
6. High reliability, no need for frequent maintenance: wear-resistant bearings, long-life belts and heavy-duty chains are used to ensure the high reliability of the whole machine. It has a complete lubrication system, reliable brake system and overall sealing characteristics, so that the machine does not need frequent maintenance;
Complete oil production control system, which can pump liquid with a large pump or deep pump with a small pump.
