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In the process of oilfield development, sucker rod pump has always played a very important role. This kind of device, which drives the downhole plunger to work through the ground pumping unit, is like a loyal partner, accompanying the oil well through the middle and late stages of production attenuation. The core value of sucker rod pump lies in its reliability, durability and easy maintenance, especially suitable for the continuous production of conventional onshore oil fields. When the natural energy of the oil well is gradually exhausted, sucker rod pump becomes the key pillar to maintain stable crude oil production.

Like all artificial lift systems, API Rod Pumps are used to restore production when the reservoir's natural driving energy is insufficient to bring oil and gas to the surface. Operators are now applying this proven technology to unconventional resources that have only recently become economically and technically viable.

I. Overview of the Inclined Well Sucker Rod Pump: During oilfield production, due to formation structure and specific conditions, oil well pumps operate in wells with a certain inclination. Using conventional pumps can cause valve closure lag, resulting in lower pump efficiency and increased production costs. To address this issue, we developed the Inclined Well Sucker Rod Pump, which addresses the issue of valve ball closure lag and improves pump efficiency.

For this reason, "how to efficiently and economically clean oil well pumps" has become a crucial concern for oil production plants, service companies, and even every on-site worker. Drawing on field experience and industry practices, we have compared and summarized the cleaning methods for API rod pumps and API tubing pumps.

The production of a well often depends not only on the oil supply capacity of the oil layer itself, but also on the performance of the pump efficiency. The pump efficiency directly determines whether the unit energy consumption can be converted into more crude oil output. There are many factors that affect the API tubing pump efficiency, but from the three basic links of deep well pump operation (piston volume, crude oil entering the pump and crude oil being discharged from the pump), it can be summarized into the following three aspects.

1. API Tubing Pump Definition and Principle: API tubing pump: The pump barrel is fixed to the lower end of the tubing, and the sucker rod drives the plunger back and forth to achieve suction and discharge. Compared to insert pumps (in which the pump barrel and plunger can be pulled and retracted as a single unit), API tubing pumps have thicker barrels, are more pressure-resistant, and more wear-resistant. However, this comes at the cost of requiring the tubing to be pulled for maintenance, making them less accessible.

Designed in strict compliance with API 11AX standards, API tubing pumps utilize a one-piece rough barrel and precision grinding to ensure a precise fit with the plunger. They utilize high-strength construction, wear-resistant alloy materials, and modular wear parts.

In the previous article, we discussed the main causes of sucker rod pump failure and how to diagnose pumping well failures. This article will detail common troubleshooting methods for pumping wells and the steps for analyzing abnormal wells. Without further ado, let's take a look.

(1) Common forms of corrosion of Sucker rod pumps include brittle corrosion, acid corrosion, fracture corrosion, electrochemical corrosion, pitting corrosion and abrasion corrosion.

Table of Contents: Why Use an Inclined Well Sucker Rod Pump? Challenges of Inclined Well Pumping Application Scenarios of Inclined Well Sucker Rod Pumps Comparison of Common Artificial Lift Methods Structure and Features of Inclined Well Sucker Rod Pumps Pump Types and Selection How to Choose the Right Inclined Well Sucker Rod Pump Conclusion and Recommendations In oil production, rod pumping remains the most common method of artificial lift. However, traditional vertical well pumping methods face many challenges in inclined well environments. Inclined well sucker rod pumps are designed to address these challenges.