■ Product Overview

QY-19 crude oil pretreatment agent is specially developed to address the stability issues of emulsions during crude oil extraction and transportation, especially suitable for low-temperature environmental conditions. Crude oil often exists in the form of water in oil (W/O) or oil in water (O/W) emulsions, which poses great challenges for crude oil dehydration, desalination, and subsequent processing. Traditional demulsifiers have significantly reduced demulsification efficiency at low temperatures. However, this product uses an innovative formula that integrates multiple highly efficient active ingredients to quickly disrupt the stability of crude oil emulsions at low temperatures (-20 ° C to 10 ° C), promote rapid oil-water separation, achieve efficient dehydration and desalination, improve crude oil quality, lay a good foundation for subsequent refining processes, effectively reduce crude oil processing costs, and improve production efficiency.

■ Productcharacteristic

1. Low temperature and efficient demulsification: The core advantage of QY-19 crude oil pretreatment agent lies in its low-temperature adaptability. In low-temperature environments, the activity of most demulsifier molecules is inhibited, while the special molecular structure of this product can maintain high activity, quickly adsorb at the oil-water interface, reduce interfacial tension, and disrupt the stability of the emulsion liquid film. After extensive practical application verification, at -10 ℃, compared with ordinary demulsifiers, this product has a demulsification speed increased by more than 50% and a dehydration rate of up to 95%. It can achieve efficient separation of crude oil and water in a short period of time, greatly improving the efficiency of crude oil pretreatment in low-temperature environments.

2. Rapid sedimentation separation: The product contains special additives that can promote rapid sedimentation of the aqueous phase after oil-water separation. The water droplets after demulsification quickly coalesce and grow under the action of additives, accelerating the settling speed. Under the same conditions, after using QY-19 crude oil pretreatment agent, the settling time of the water phase is shortened by 30% -40% compared to ordinary demulsifiers, effectively reducing the pretreatment time of crude oil, improving the processing capacity of production equipment, reducing the residence time of crude oil in the pretreatment stage, and reducing equipment occupation and energy consumption.

3. Excellent desalination performance: The salt content in crude oil not only affects its quality, but also causes corrosion to subsequent processing equipment. QY-19 crude oil pretreatment agent has excellent desalination ability while breaking emulsions. Its active ingredients can undergo chemical reactions with salts in crude oil, converting insoluble salts into water-soluble salts, which are separated and discharged with the water phase. After testing, the desalination rate of crude oil can reach over 90% after using this product, effectively reducing the salt content in crude oil, protecting downstream processing equipment, extending equipment service life, and reducing maintenance costs and production interruption risks caused by equipment corrosion.

4. Good compatibility: In the actual process of crude oil extraction and processing, crude oil often needs to be used in combination with multiple chemical agents. QY-19 crude oil pretreatment agent has good compatibility and can work synergistically with common corrosion inhibitors, pour point depressants, fungicides, etc., without interfering with each other and enhancing the overall treatment effect. For example, when used in combination with corrosion inhibitors, it can ensure the effectiveness of demulsification, dehydration, and desalination, while also enhancing the corrosion protection of the equipment; In collaboration with pour point depressants, it can reduce the pour point of crude oil while improving the efficiency of demulsification, adapting to the complex and ever-changing needs of crude oil processing.

■ scope of application

1.Applicable crude oil types

Crude oil from onshore oil fields: This product covers various types of crude oil extracted from onshore oil fields, whether it is light crude oil, medium crude oil, or heavy crude oil, and can exert good demulsification, dehydration, and desalination effects. For crude oils produced under different geological conditions, such as those with high wax content and varying levels of asphaltene content, QY-19 crude oil pretreatment agent effectively addresses the differences in crude oil characteristics through its unique molecular structure and mechanism of action, achieving efficient pretreatment.

Crude oil from offshore oil fields: The offshore oil field extraction environment is complex, with low and fluctuating temperatures, and strict performance requirements for crude oil pretreatment agents. QY-19 crude oil pretreatment agent has shown outstanding performance in offshore platform crude oil pretreatment due to its excellent low-temperature performance. It can quickly process crude oil emulsions under the influence of low-temperature seawater environment, ensuring the continuity and efficiency of offshore crude oil extraction, transportation and processing, and reducing the cost and risk of offshore operations.

Heavy oil: Due to its high viscosity and wax content, heavy oil has strong emulsion stability and is difficult to break down. QY-19 crude oil pretreatment agent is designed to enhance the permeability and destructive ability of heavy oil emulsions by optimizing the molecular structure and formula, targeting the characteristics of heavy oil. It effectively achieves dehydration and desalination of heavy oil at low temperatures, improves the economic benefits of heavy oil extraction and processing, and provides strong support for the effective development and utilization of heavy oil resources.

2.Applicable process steps

Pre treatment of crude oil extraction site: At crude oil extraction wellheads or gathering stations, QY-19 crude oil pretreatment agent can be directly added. In the early stage of crude oil production, timely demulsification treatment of crude oil emulsion is carried out to reduce the loss of crude oil and the risk of equipment blockage during the gathering and transportation process, improve the efficiency of crude oil gathering and transportation, reduce the burden of subsequent centralized processing, and ensure the stable operation of crude oil extraction and gathering and transportation systems.

Pre treatment of crude oil long-distance pipelines: In the process of long-distance transportation of crude oil, to prevent the accumulation of emulsions in the pipeline and prevent smooth transportation, this product can be added at the beginning or middle pump station of the pipeline. In low-temperature environments, its continuous demulsification effect can maintain good fluidity of crude oil in pipelines, reduce pipeline scaling and corrosion, ensure safe and efficient operation of long-distance crude oil pipelines, and reduce pipeline maintenance costs.

Refinery crude oil pretreatment: After receiving crude oil, the refinery uses QY-19 crude oil pretreatment agent for deep pretreatment before entering core processing steps such as atmospheric and vacuum distillation. It can further reduce the water and salt content of crude oil, meet the strict requirements of refining process for crude oil quality, reduce equipment corrosion, scaling and other problems in subsequent processing, improve the operational stability and product quality of refining equipment, and enhance the overall economic benefits of the refinery.