In oilfield extraction operations, high-pressure pumps are indispensable core equipment, primarily responsible for injecting high-pressure fluids for key processes such as oil displacement, fracturing, water injection, and pipeline transportation. Based on their working principles and application scenarios, they can be mainly categorized into the following types:

Plunger Pumps: Renowned for their high pressure, high precision, and stable flow control, they are the most widely used type of high-pressure pump in oilfields today. They are particularly suitable for applications requiring precise control of injection pressure, such as high-pressure water injection and chemical flooding.

Centrifugal Pumps: Suitable for large-displacement, medium-to-low-pressure water injection or water transfer operations. Their simple structure and easy maintenance make them play a significant role in oilfield water injection stations and gathering and transportation systems.

Reciprocating Booster Pumps: Capable of generating extremely high output pressure, they often serve the final boosting role in ultra-high-pressure water injection for deep wells or certain specialized fracturing operations.

Screw Pumps: With their excellent media adaptability and smooth flow output, they offer unique advantages in handling complex media such as high-viscosity fluids or sand-containing mixtures.

Additionally, High-Pressure Polymer Injection Pumps are specifically designed for polymer flooding, while Fracturing Pump Trucks are the dedicated core equipment for hydraulic fracturing operations. These different types of high-pressure pumps, like the "powerful heart" of an oilfield, collectively form the modern, high-efficiency equipment system for oil and gas extraction, serving as the technical cornerstone for ensuring stable and increased production in oilfields.