Hydraulic fracturing technology involves injecting high-viscosity fracturing fluid into the wellbore, which uses high pressure to create fractures in the formation and open up channels for oil and gas flow. However, after the fracturing operation, if the high-viscosity fracturing fluid remains in the formation, it will block the fracture pores and hinder oil and gas production. Therefore, a "gel-breaking" process is required to significantly reduce the viscosity of the fracturing fluid, making it easy to flow back to the surface and ensuring the long-term smoothness of oil and gas channels.

As an efficient oxidative gel breaker, Ammonium Persulfate can generate free radicals to break the long-chain structure of high-molecular polymers (such as guar gum) in the fracturing fluid, achieving a rapid and precise reduction in viscosity to meet the core needs of gel-breaking operations. Currently, in industrial applications, it is mainly available in two forms: "conventional direct addition" and "encapsulated controlled release," to adapt to different extraction conditions. The Ammonium Persulfate products produced by Fujian ZhanHua Chemical demonstrate excellent performance stability in both application forms, thanks to strict quality control and performance testing, making it a preferred supplier for many oil and gas extraction enterprises.

To address differences in working conditions such as reservoir temperature and construction cycle, Ammonium Persulfate has developed two targeted product forms, ensuring that the gel-breaking effect is accurately matched to operational requirements.

This type of product is suitable for scenarios where the reservoir temperature ranges from 60 to 120°C and delayed gel-breaking is not required, such as shallow well extraction and short-cycle fracturing operations. Its core advantages are reflected in three aspects: first, high reaction efficiency—it can react quickly with the fracturing fluid in a medium-high temperature environment, shortening the gel-breaking cycle and reducing operation waiting time; second, easy product handling—the ammonium sulfate generated after decomposition has good water solubility, making it easy to flow out with the flowback fluid and causing minimal residual damage to the formation; third, excellent cost-effectiveness—it does not require complex encapsulation processes, keeping costs manageable and adapting to large-scale extraction needs.

To solve the problem of "slow decomposition at low temperatures and premature gel-breaking at high temperatures" of conventional Ammonium Persulfate, the industry has innovatively launched encapsulated controlled-release Ammonium Persulfate gel breakers. This type of gel breaker uses Ammonium Persulfate as the core, with an outer layer wrapped in a temperature-resistant and water-proof polymer shell. Precise control of the gel-breaking process is achieved through physical isolation, and its core advantages include: first, delayed gel-breaking—the shell dissolves slowly according to the construction rhythm, ensuring that the fracturing fluid maintains high viscosity during the transportation, fracture creation, and proppant-carrying stages, and only releases the core to complete gel-breaking after the operation; second, large-dose addition capability—it avoids incomplete gel-breaking caused by insufficient gel breaker, ensuring no residual blockage in the fractures; third, low interference—it does not affect the rheological properties of the fracturing fluid in the early stage of the operation, ensuring stable fracture creation and proppant-carrying effects.

Ammonium Persulfate is a strong oxidizer with active chemical properties, and strict compliance with safety regulations is required for its storage and operation:

Storage: It should be sealed and stored separately in a dedicated cool, ventilated, and dry warehouse, away from fire and heat sources. It must be strictly isolated from reducing substances (such as sulfides, organic matter, and metal powders) to avoid violent reactions.

Operation: Operators must wear protective equipment such as gloves, goggles, and dust masks to prevent direct skin contact or inhalation of dust. In case of accidental contact with the skin or eyes, rinse immediately with a large amount of water and seek medical attention if necessary.

As a key material for hydraulic fracturing gel-breaking, Ammonium Persulfate plays an irreplaceable role in improving the quality and efficiency of oil and gas extraction. The key to fully leveraging its technical value lies in selecting suitable product forms, following safe operation specifications, and relying on the supply of products with stable performance. As a professional manufacturer in the Ammonium Persulfate field, the products of Fujian ZhanHua Chemical have undergone strict testing and on-site verification, demonstrating excellent performance in terms of gel-breaking efficiency and stability. With reliable product quality, Fujian ZhanHua Chemical’s Ammonium Persulfate is not only widely used in major domestic oil and gas fields but also exported to overseas markets, gaining wide recognition in the industry.