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The insert rod pump is a piece of equipment widely used in oil production, featuring a simple structure, easy maintenance, and high reliability. This article will explain the working principle, structural features, operation, maintenance, and troubleshooting of the insert rod pump to help readers better understand and apply this equipment.

Selection Guide: Shallow wells with high production (<300 meters): Tube pumps offer 12% lower energy consumption, but require tubing pull-up for maintenance. Deep wells with low production (>5,000 meters): Insert rod pump maintenance cycles extend to 18 months, and displacement is only 15 cubic meters per day. Heavy oil in inclined wells: Hydraulic pumps offer 2.3 times the displacement of rod pumps, increasing pipeline costs by 40%. Key Data: Insert rod pumps have a maximum stroke of 3,000 meters (the height of a 300-story building). Rod string vibration reduces actual stroke by 15%. Gas anchor devices can separate over 90% of bottomhole gas.

Carbon fiber sucker rod centralizer uses carbon fiber and ultra-high molecular polyethylene, which have the advantages of light weight, high strength, high modulus, low density, high temperature resistance, corrosion resistance, etc. As raw materials. It is processed and molded by injection molding and other methods to effectively alleviate the frequent workover problems caused by well pipe wear and fracture. Its wear resistance is more than 5 times that of nylon centralizer.

A sucker rod pump is a type of downhole equipment that, driven by a pumping unit, lifts crude oil from a wellbore to the surface. Commonly Used Sucker Rod Pump Categories Internationally: A tubing pump, also known as a tubing pump, is unique in that the outer barrel, sleeve, and suction valve are pre-assembled on the surface and connected to the lower portion of the tubing before being lowered into the wellbore. A piston equipped with a discharge valve is then fed into the pump via the sucker rod and tubing. Tubular pumps can be further divided into sleeve pumps and solid-barrel pumps.

Downhole sucker rod pump adopts an innovative double-layer pump barrel structure. Downhole sucker rod pump is designed for deep and thin oil well conditions. Downhole sucker rod pump is suitable for oil wells that cannot be produced normally due to insufficient formation fluid supply or low formation pressure in conventional lifting processes. The standard applicable well depth range is 2600 meters to 3500 meters.

we will take a deeper look at more details of the movable barrel sand control oil well pump. 1. Detailed explanation of the working principle of the movable barrel sand control oil well pump: During the working process of the movable barrel sand control oil well pump, during the upstroke, the sucker rod will move the movable barrel sand control oil well pump upward, causing the oil outlet valve to close. As the space in the pump barrel cavity gradually increases, the pressure begins to drop. At this time, the liquid in the well will push the oil inlet valve open and smoothly enter the pump cavity. During the downstroke, the pump barrel moves downward, and the pressure in the pump increases accordingly. The oil outlet valve opens under the action of pressure, while the oil inlet valve closes. In this way, the liquid in the pump is smoothly discharged and flows into the oil pipe.

How do pumpjacks actually bring crude oil from deep underground to the surface? Some might answer that it's the sucker rod pump. Indeed, the sucker rod pump plays a crucial role. However, a deeper look reveals that sucker rod pumps are divided into two types: rod-type sucker rod pumps and tubular-type sucker rod pumps. In our oilfields, rod-type sucker rod pumps are commonly used for oil recovery due to various practical considerations. Let's take a closer look at this crucial piece of equipment hidden deep underground—the rod pump—and learn about its working principles and functions.

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.