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The most commonly used deep well pump oil recovery device is a beam-type oil pump-oil pump device, which includes a pumping unit, the ground part of the wellhead device of the pumping well, and the underground part including the pumping rod, the oil pump, and the oil pipe. Among them, the pumping unit, the pumping rod, and the oil pump are the most important components of this kind of oil pumping device, the so-called “three pumping equipment.”

I. Definition and Technical Positioning: A double plunger injection production oil well pump is an artificial lift device utilizing a dual-plunger positive displacement pump structure. It performs both water injection and oil recovery functions, balancing both flooding and extraction. Its double-acting plunger design enables efficient suction and discharge of liquid during both the upper and lower strokes, improving pumping efficiency and system stability. This structure, similar to a "double-acting double-plunger pump," is widely used in industrial and oilfield injection and production scenarios (Note: it does not simply suction and discharge, but rather the upper and lower plungers circulate separately).

On the oilfield floor, especially in shallow-to-medium formations, rod pumping has long been one of our engineering team's most commonly used, familiar, and reliable production methods. This isn't to say that other technologies are inferior—submersible electric pumps and progressive cavity pumps have their uses, but when it comes to cost-effectiveness, ease of maintenance, and versatility, rod pumping systems are the preferred choice. Why do we continue to use rod pumps? The reason is simple—not all wells are self-flowing, and not all wells warrant the expense of installing electric pumps. Especially when formation pressure is gradually decreasing, or when producing heavy oil, low-yield wells, or cyclic steam injection wells, we need a stable and easy-to-maintain mechanical recovery solution. In these situations, rod pumping is the preferred choice. Currently, there are two mainstream mechanical recovery methods: gas lift (mostly used in marginal water wells and light oil wells) and deep well pumping. Our rod pumping system is the most mature and widely applicable deep well pumping system. A complete sucker rod pump system consists of three main components: Surface unit (pump unit): Everyone is familiar with the "kowtow pump," the power source, consisting of a connecting rod and a reduction gearbox. Rod system: Connects the surface to the wellbore, transmitting power to the plunger. Downhole pump (sucker rod pump): The actual actuator, sucking up fluid and pumping it into the tubing.

I. Injection and Production Pump Overview: The injection and production pump is a simplified injection pump designed for steam flooding/huff-and-puff operations in high-temperature heavy oil wells. Its core feature is dual-use injection and production: simple and reliable conversion between injection and production. The injection and production pump utilizes a large-diameter, long-stroke pump barrel and plunger, effectively increasing fluid production. A dedicated disconnector for large pumps is used to disconnect the plunger from the sucker rod. The upper outlet valve and lower portion of the plunger are machined with sharp-angle scraping edges. In annular thermal recovery wells, the reciprocating motion of the plunger continuously removes scale and sand from the inner wall of the pump barrel, reducing and preventing sand blockage. The injection and production pump is suitable for pumping heavy and extra-heavy oil under challenging conditions such as high temperatures and sand content. The heavy oil pump successfully addresses the challenges of extra-heavy oil recovery.

1. Why do pumps frequently stick at the wellhead? In production of wells with high sand content, oil well pumps can experience plunger sticking and severe seal wear, impacting well production efficiency and equipment life. Conventional oil well pump designs have a short service life in sandy environments. To address this issue, we have developed a long plunger sand control pump. Below, we will provide a detailed analysis of the long plunger sand control pump.

Learn an in-depth understanding of efficient solutions to oil well degassing challenges. I. What is an anti-gas sucker rod pump? An anti-gas sucker rod pump is a type of pumping equipment specifically designed to address high gas content in well fluids. It is an improved version of the sucker rod pump. Its unique structural design and degassing mechanism effectively prevent gas from entering the pump body, resolving the "gas lock" or "gas cap" issues associated with conventional sucker rod pumps and improving oil recovery efficiency.

What are the advantages and disadvantages of the Sucker Rod Pump (SRP) system? That's what I'll share today. In the previous article, I introduced the fountain method and gas lift method for oil recovery. These two methods are typically used in the initial stages of oil field development, when internal energy or a small influx of external energy in the form of gas is sufficient to lift the oil.

In this article, I will briefly introduce the main methods of oil extraction. Oil exists in layers of porous rock (accumulators). It is in these accumulators that the oil accumulates. A second prerequisite is that the accumulators must be covered by an impermeable oil and gas seal; otherwise, the gas will evaporate and the oil will eventually turn into bitumen. To extract oil, a well must be drilled. The well enters the oil-producing stratum, and here the fun begins—the oil must be brought to the surface somehow.

Deep-well sucker rod pump is a mechanical oil production equipment used for deep well oil extraction, which is a core component of the rod pump oil production system. Anti gas sucker rod pump is a pumping equipment specifically designed for gas-bearing wells, mainly used to reduce or avoid the impact of gas on pumping efficiency. So do you know the difference between them?

There are many reasons for oil well pump inspections, which can be summarized into three categories: First, periodic inspections based on the pumping well's production patterns; second, production stoppages caused by sudden failures in the pumping well, primarily involving sucker rod pump failures; and third, pump replacements or deeper drilling to increase production. These inspections can be broken down into the following categories: