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What is Gas Lock? Some oil wells contain a high concentration of gas, which can enter the pump barrel through the fixed valve. If not promptly vented, the gas will gradually fill the space below the plunger in the pump barrel. As the plunger descends, the liquid in the tubing string acts on the traveling valve, exerting significant pressure. This prevents the traveling valve from opening, compressing the gas in the pump barrel below the plunger and preventing the flow of liquid above the plunger. As the plunger ascends, the compressed gas expands, exerting pressure on the fixed valve, preventing it from opening and preventing the pump from drawing liquid. This repetitive cycle of gas compression and expansion without any discharge is called gas lock.

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.

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.

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.

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.

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.

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.