Shaanxi Shangnan County Dongzheng Chemical Co., Ltd. 
[Appearance]
This product generally appears as colorless, yellow-red, or blue-purple uniformly flowing liquid.
[Physical and Chemical Properties]
There are many types of crosslinking agents used in fracturing, broadly categorized into organic, inorganic, or composite. Each type has its own unique chemical properties and application characteristics. In actual fracturing operations, the appropriate type and dosage of crosslinking agent should be selected based on specific conditions to achieve optimal fracturing results and operational efficiency.
Technical Specifications of Crosslinking Agent
| Item | Specification | |||||
| 60℃ | 90℃ | 120℃ | 140℃ | 160℃ | 180℃ | |
| Appearance | Liquid: uniform liquid or emulsion / Solid: free-flowing granules | |||||
| Crosslinking Time (s) | ≤60 | ≤120 | 30-300 | 30-300 | 30-300 | 30-300 |
| Crosslinking Property | Can form a gel that clings to a glass rod | |||||
| Temperature and Shear Resistance (mPa·s) | ≥50 | |||||
| Gel-Breaking Fluid Viscosity (mPa·s) | ≤5.0 | |||||
Organic Chlorine Content (%) | 0 | |||||
| Note 1: The temperature and shear resistance shall be tested according to the product’s specified applicable temperature. | ||||||
| Note 2: The organic chlorine content shall be determined only when used in oil well environments. | ||||||
[Applications]
Crosslinking agents for fracturing serve various purposes in oil and gas extraction. Firstly, they chemically increase the viscosity of water-based fluids, enhancing molecular viscosity to promote fluid flow under high pressure. Secondly, they improve rheological properties such as inflection point transition, shear rate behavior, and viscoelasticity, enabling better fluid flow and stability in complex formations. Additionally, crosslinkers enhance the pressure transmission in rock fractures, improving fracturing efficiency and facilitating the release of oil and gas.
[Product Advantages]
1. Wide crosslinking range with no water separation after over-crosslinking;
2. Freeze gels remain ductile at low temperatures and hydrate thoroughly;
3. Strong temperature and shear resistance, no gel reversion at low temperature;
4. Excellent proppant-carrying capacity.
[Usage and Dosage]
Crosslinking agents can be directly added to the fracturing fluid and mixed evenly, or diluted before use. The specific operation method should be adjusted according to the formation temperature and construction requirements.
For formations with temperatures ≤120℃, low-temperature crosslinkers are recommended at 0.1%–0.2%. For ≥120℃, high-temperature crosslinkers are recommended at 0.3%–0.5%.
[Packaging]
This product is typically packaged in IBC totes (net weight 1000KG), 200KG drums, or 25KG drums. Custom packaging is available upon request. Handle gently during transport; do not invert.
[Storage Conditions]
Keep the container tightly sealed during storage. Store in a cool, ventilated area. Avoid contact with skin or eyes during handling and use. In case of contact, rinse thoroughly with plenty of water.
