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In actual oilfield operations, sucker rod pumps, as transmission components of rod pump oil production, often bear high-frequency and alternating mechanical loads. During maintenance and overhaul, we often encounter different types of sucker rod pump failure problems. Combining field data and previous cases, here are several common failure modes and their possible causes for reference by peers.

In western and southern India, many oil fields in the middle and late stages have encountered such problems: Less than half a year after the sucker rod pump was replaced, abnormal noises began to appear in the well, either broken rods or eccentric wear. In serious cases, the well was directly stopped for repair, wasting a lot of manpower and material resources. In fact, the root cause of the problem is not complicated - the well conditions are changing, but the sucker rod pump used has not kept up. Faced with this situation, more and more Indian customers are beginning to try to use China's API sucker rod pump, not because we say it well, but because these sucker rod pumps are indeed durable and long-lasting on site.

We all know that although the artificial lift sucker rod pump is only a part of the downhole equipment, its selection has a particularly large impact on the life and production capacity of the well. Especially after the shale oil wells in the United States enter the middle and late stages, the well conditions are becoming more and more complicated, and the production is gradually declining. The quality and performance of the artificial lift sucker rod pump are directly related to whether the production can be stabilized and the shutdown and maintenance can be reduced.

Sucker rod pump oil production is the most widely used oil production method at present. China's sucker rod pump oil production accounts for about 90% of the total number of artificial lift oil production wells. The sucker rod pump equipment is simple, with low investment, convenient management and strong adaptability. It can be used from shallow wells of 200 to 300 meters to deep wells of 3,000 meters, and the oil production ranges from a few tons per day to 100 to 200 tons per day. In terms of equipment manufacturing, from ground pumping units, downhole sucker rods to sucker pumps, China's products have long been serialized and complete sets, which can meet the production needs of oil fields. The disadvantage of the sucker pump is that the displacement is not large enough, and it cannot meet the requirements for oil wells with a daily output of more than 200 tons.

There are many factors that affect pump efficiency, but from the three basic links of the deep-well sucker rod pump (the piston gives up volume, crude oil enters the pump and is discharged from the pump), it can be summarized into the following three aspects.

Definition of sucker rod pump: Sucker rod pump is a common downhole device that is driven by a pumping unit to pump crude oil from the well to the ground. The ordinary sucker rod pump is mainly composed of four parts: pump barrel, suction valve, piston, and discharge valve. According to the way the sucker rod pump is fixed underground, it can be divided into tube pump and rod pump.

In the process of crude oil extraction, sucker rod pump barrel leakage is a common problem, which not only causes delays and energy waste, but also may cause problems such as liquid hammer and vibration, and accelerate the damage of components such as plungers and valve groups. Pollute the well site environment and even cause fire hazards. So, what causes pump barrel leakage? How should we effectively reduce pump barrel leakage?

Due to the continuous development of industry and economy, the exploitation of oil wells has continued to increase, and the demand for sucker rod pumps has also continued to increase. Sucker rod pump is the main equipment in the rod pumping system. Depending on the depth of the oil well, production capacity, and crude oil properties, the required type of sucker rod pump structure will also be different.

In the actual oil production process of API sucker rod pump, the coordinated reciprocating motion of pump barrel and plunger is the key. This motion not only determines the displacement of API sucker rod pump, but also is affected by multiple factors such as plunger outer diameter, pump barrel inner diameter, pressure, temperature and axial force, which together determine the service life of API sucker rod pump. This article will take you to understand the working principle of API sucker rod pump in depth, thereby improving your efficiency in oil production.

In the world of oilfield exploitation, the oil well pump is like the "heart" of the oil well. Its performance determines the output and exploitation efficiency of crude oil. Among the many oil well pumps, the competition between API tubing rod pumps and API sucker rod pumpshas never stopped. One has a simple structure and large displacement, while the other is convenient for pump inspection and adaptable to deep wells. But what are their advantages and disadvantages? Which pump is more suitable for your oil well? Today, we will analyze these two oil well pumps in depth!