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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.

API type tubing pumps and API type rod pump​s are two common types of mechanical oil production equipment. Due to their structural differences, their application performance in different well conditions varies. Choosing the right pump based on well depth, production rate, and ease of maintenance has always been a core concern for oilfield engineers and production units. This article will provide an in-depth analysis of the structural characteristics and application scenarios of API type tubing pumps and API type rod pumps, helping you quickly compare their advantages and limitations.

The main difference between tubing pumps and insert rod pumps is that tubing pumps have a simple structure and low cost. The diameter of the pump that can be inserted under the same oil pipe diameter is larger than that of insert rod pumps, so the displacement is large. However, when inspecting the pump, the oil pipe must be started, and the workload of repairing the well is large. It is suitable for oil wells with small depth and high production. Insert rod pumps are convenient for pump inspection, but have a complex structure and high manufacturing cost. The diameter of the pump that can be inserted under the same oil pipe diameter is smaller than that of tubing pumps. Insert rod pumps are suitable for oil wells with large depth and low production.

Tubing pump, also known as tubing pump, is divided into double-valve and three-valve tubing pump according to the number of valves. It consists of a working cylinder, a piston, a floating valve, a fixed valve, etc.:

Table of Contents: The previous article explained insert rod pumps. This article will explain the definition of tubing pumps, a comparison between tubing pumps and insert rod pumps, the classification of tubing pumps, the impact of pump diameter on production, and the pumping process. For more information, let's take a look together!

In the field of oil extraction, tubing pump, as a mature and reliable mechanical oil production equipment, continues to provide the core driving force for stable oilfield production. Tieling Dongsheng Petroleum Co., Ltd. has been deeply engaged in the research and development and manufacturing of oil production equipment for more than ten years. Relying on structural optimization and technological innovation, its tubing pump series products have been applied on a large scale in many domestic oilfield blocks, effectively supporting the development needs of old wells to increase production and new wells to improve efficiency.

The tubing pump is an underground pumping device directly fixed to the bottom of the oil pipe. The plunger is driven by the pumping rod to reciprocate and lift the crude oil from the bottom of the well to the ground. Its simple structure and low cost are suitable for oil wells with medium and low production and stable well conditions, but the entire oil pipe needs to be removed during maintenance.

In the previous article, we talked about what is the difference between api sucker rod pump and submersible electric pump? If you want to know more about the related content, you can click the link to visit! Overview of API tubing pump: 1. Composition of oil pump: The pump barrel assembly of API tubing pump is directly connected to the lower end of the oil pipe, and the plunger goes into the pump barrel with the sucker rod. API tubing pump consists of two parts: pump barrel assembly and plunger assembly. The pump consists of a pump barrel, a fixed valve and a hollow plunger with a floating valve. 2. Working principle: During the pumping process, the plunger reciprocates up and down in the pump barrel with the movement of the sucker rod. During the upstroke, the floating valve ball on the plunger is closed, the fixed valve ball is opened, and the plunger discharges the liquid in the upper chamber into the upper oil pipe of the pump. At the same time, the liquid in the well enters the lower chamber of the pump barrel through the fixed valve under the action of the inlet pressure. During the downstroke, the fixed valve is closed, the floating valve is opened, and the liquid in the lower chamber of the pump enters the upper chamber of the pump barrel through the inner cavity of the plunger. The plunger surges up and down, and the liquid is continuously pumped to the wellhead. 3. Analysis of the reasons for API tubing pump repair: For coalbed methane wells, repair is mainly caused by eccentric wear and pump failure. Well repair requires all the pipes to be lifted out of the ground. There is a detailed description later.

Our Tieling Dongsheng Petroleum Machinery Co., Ltd. it is a company specializing in the production and manufacture of petroleum extraction machinery and parts. Our API tubing pump is produced in Liaoning, China, with an annual supply capacity of 20,000 pieces and a delivery time of only 8-10 weeks. It can provide stable and reliable solutions for oilfield customers around the world.