Phenolic crosslinking agent
Phenolic resin crosslinking agents are water-soluble condensation polymers. The gels formed by crosslinking with polymer solutions are characterized by a long gelation time, relatively good gel stability, and temperature resistance.
Category:
Keywords:
Phenolic crosslinking agent
Product Description
Phenolic resin crosslinking agents are water-soluble condensation polymers. The gels formed by crosslinking with polymer solutions are characterized by a long gelation time, relatively good gel stability, and temperature resistance. Therefore, gels formed by crosslinking phenolic resin crosslinking agents with polymer solutions are primarily used for profile adjustment and water plugging in remote well zones (areas 25–50 meters from the wellbore). Our company offers a version of this product suitable for high-temperature oil fields. It is a low-molecular-weight polyphenol crosslinking system that forms a gel through the crosslinking of anionically partially hydrolyzed polyacrylamide with a phenolic resin system, featuring high-temperature and salt resistance.
The phenolic crosslinking agent produced by our company is a Stage A product of thermosetting phenolic resin. Its hydroxymethyl functional groups possess high reactivity and undergo a dehydration condensation crosslinking reaction with polyacrylamide, which can be completed under weakly alkaline or neutral conditions. making it suitable as a crosslinking agent for water-based polyacrylamide gels used in profile adjustment and water blocking operations in oil and water wells. It is widely used in profile adjustment and water blocking operations in oil and water wells. It has been applied in the Shengli, Daqing, Jiangsu, Jilin, Liaohe, Xinjiang Karamay, North China, and Yuedong oilfields, among others, achieving excellent test results.
Product Features
1. Good water solubility.
2. Wide temperature range; it can gel with polymers at temperatures between 50 and 150°C.
3. The gelation time and strength of the cross-linked system formed with polymers are controllable.
4. The resulting gel exhibits good heat and salt resistance; it has low initial viscosity, making it suitable for deep profile control; and it remains stable for approximately 9 months.
Application
Suitable for reservoirs with temperatures ranging from 80°C to 120°C, this product requires a crosslinking agent dosage of 0.6% to 2%. It has a slightly slower gelation time but offers high strength and good stability. The gelation time and strength can be adjusted according to reservoir requirements, and it is widely used in water well profile control and oil well water-shut-in operations.
Specifications
| Item | Value | |
| Appearance | Homogeneous Liquid | |
| Curing Time, h | 5h~72h | Adjust according to construction requirements |
| Breakthrough Pressure Gradient, MPa/m | 0.5~2.5 | Adjust according to construction requirements |
| Water Blockage Rate, % | 80~95 | Adjust according to construction requirements |
| Viscosity Retention Rate After 7 Days at Constant Temperature, % | ≥98 | |
| Oil Blockage Rate, % | ≤20% | |
| Gel Strength, mPa·s | ≥30000 |
Directions for Use
Add directly to the polyacrylamide solution and stir until thoroughly mixed. Adjust the concentrations of the polymer and crosslinking agent according to application requirements. The typical concentration range for this product is 0.2–0.5%.
Packaging Specifications
Depending on the customer’s needs, the product will be packaged in ton containers or 200-kg drums and delivered by courier to the designated location by the date specified by the customer.
Dongying Focus Petroleum Technology Co., Ltd. is a professional oilfield service company specializing in the research, development, and manufacturing of oilfield chemicals. We are a trusted manufacturer and supplier of specialized chemical solutions for heavy oil recovery, hydraulic fracturing and acidizing, enhanced oil recovery (EOR), water shutoff, and profile control applications in China.
Since our establishment, we have built a highly skilled technical service team and established long-term strategic partnerships with research institutes affiliated with CNPC, Sinopec, CNOOC, Kerui Group, as well as leading universities including China University of Petroleum (East China), Shandong University, and Tianjin University. Our high-performance oilfield chemicals, experienced professionals, and comprehensive technical services have earned widespread recognition throughout the industry.
Our major partners include CNPC, Sinopec, CNOOC, Kerui, and other leading oil & gas operators and oilfield service companies. To date, we have successfully supplied products and technical services to customers in more than 10 countries and regions, including Kazakhstan, Colombia, Brazil, and Venezuela.
Are we traders or manufacturers?
We are a primary manufacturer of oilfield chemicals and operate our own production facilities.
How are the products packaged?
Solids are generally packaged in 25-kg bags, while liquids can be packaged according to customer requirements, typically in 25-liter drums, 200-liter drums, or IBC containers.
How long is the lead time?
If the goods are in stock, delivery typically takes 5–7 days; if they are out of stock, delivery takes 10–15 days, depending on the quantity. The times listed above refer to delivery to a port in China.
Do you offer OEM/ODM services? Can you customize my logo or packaging?
We offer OEM/ODM services and can customize customers' logos and packaging.
Can I request free samples before placing a bulk order?
We can provide free samples.
Do you offer DDP door-to-door delivery with customs clearance and tax included?
Of course.
What payment methods do you accept? (T/T, PayPal, credit card, L/C?)
We accept T/T.
What are your payment terms?
30% deposit + 70% balance to be paid in full before shipment
Hi
Contact us for more preferential prices !