FAQ

Q: How is the corrosion inhibitor injected?
A: For continuous treatment, the inhibitor is injected using a chemical injection pump at the wellhead, downhole via capillary string, or at pipeline junctions. For batch treatment, the inhibitor is pumped as a slug between pigs or circulated through the system.

Q: What is the recommended dosage rate?
A: Typical continuous dosage is 10-50 ppm based on total produced fluids. The optimal dosage should be determined through corrosion coupon monitoring or corrosion probe data at your specific operating conditions.

Q: Is the inhibitor compatible with downstream refining processes?
A: Yes, our imidazoline-based inhibitor is formulated to be refinery-friendly, with no adverse effects on catalyst systems, desalting operations, or product quality at typical treatment concentrations.

Q: How long does the protective film last?
A: Under continuous flow conditions, the film provides protection for 24-72 hours after inhibitor injection stops. The exact persistence depends on flow velocity, fluid composition, and temperature.

Q: Do you offer inhibitor performance testing services?
A: Yes, our laboratory can perform corrosion rate testing using customer-supplied fluid samples to determine the optimal inhibitor type and dosage for your specific application. Contact our technical team for test arrangements.

The Junchi (SANMON) Oilfield Corrosion Inhibitor is a high-performance chemical formulation designed to protect downhole tubulars, pipelines, separators, and surface processing equipment from internal corrosion caused by hydrogen sulfide (H2S), carbon dioxide (CO2), and organic acids commonly present in produced fluids. This film-forming, imidazoline-based inhibitor creates a persistent, molecular-thin protective barrier on metal surfaces, preventing direct contact between corrosive fluids and the underlying steel substrate.

Formulated for both continuous injection and batch treatment applications, the inhibitor delivers exceptional corrosion mitigation efficiency exceeding 95% in controlled laboratory testing per ASTM G170/G185 standards. The surfactant package ensures rapid dispersion in both hydrocarbon and water phases for uniform film formation throughout the system. Manufactured in our Tianjin chemical blending facility under strict quality control, each batch undergoes corrosion performance testing using linear polarization resistance (LPR) and rotating cylinder electrode (RCE) methods to verify inhibitor effectiveness before release.

• Production Tubing Protection: Continuous downhole injection through capillary string or gas lift mandrels to protect production tubing from internal corrosion in flowing wells.

• Gathering Pipelines: Injection at wellheads and pipeline junctions to protect multiphase flowlines from CO2 and H2S pitting and under-deposit corrosion.

• Produced Water Systems: Treatment of produced water injection and disposal lines where oxygen ingress and bacterial activity accelerate corrosion rates.

• Gas Processing Plants: Protection of amine units, glycol dehydrators, and gas sweetening equipment from wet CO2 and H2S corrosion.

• Storage Tanks: Batch treatment of crude oil and produced water storage tanks to prevent bottom water corrosion and vapor space corrosion.

• Offshore Platforms: Continuous injection for splash zone and submerged pipeline protection in seawater-injected systems.

• Superior Film Persistence: Imidazoline chemistry forms a tenacious, long-lasting protective film that remains effective for extended periods (days to weeks) even after inhibitor injection is temporarily interrupted.

• Dual H2S/CO2 Protection: Effective against both sweet (CO2) and sour (H2S) corrosion mechanisms, eliminating the need for multiple inhibitor products in mixed corrosion environments.

• High Inhibition Efficiency: Achieves >95% corrosion inhibition at low dosage rates (10-50 ppm), providing cost-effective protection with minimal chemical consumption.

• Excellent Dispersibility: Advanced surfactant package ensures rapid and complete dispersion in both oil and water phases, protecting all wetted metal surfaces throughout the system.

• Compatible with Production Chemicals: Formulated for compatibility with common production chemicals including demulsifiers, scale inhibitors, biocides, and paraffin inhibitors.

• Low-Temperature Fluidity: Low pour point (< -30 deg C) ensures pumpability in cold climates without heated storage or transportation.

Junchi (SANMON) has developed specialized chemical manufacturing capabilities at our Tianjin facility, where we blend, test, and package oilfield chemicals for global distribution. Our chemical division features computer-controlled blending vessels with precision metering systems for accurate formulation, analytical laboratory equipment including gas chromatographs, FTIR spectrometers, and corrosion testing apparatus (LPR, RCE, autoclave), and automated filling lines for drums, IBC totes, and bulk containers. Every production batch undergoes comprehensive quality testing: chemical composition analysis, physical property verification, and corrosion inhibition performance testing under simulated field conditions. Our chemical engineers provide technical support including dosage optimization studies, inhibitor selection guidance, and field trial coordination. We maintain inventory of standard inhibitor formulations for immediate shipment in 55-gallon drums, 275-gallon IBC totes, and bulk tanker quantities. With ISO-certified quality management, competitive pricing, and responsive technical service, Junchi/SANMON delivers effective corrosion protection solutions to the global oil and gas industry. Safety Data Sheets (SDS), Technical Data Sheets (TDS), and performance test reports are available for all products.

Q: How is the corrosion inhibitor injected?
A: For continuous treatment, the inhibitor is injected using a chemical injection pump at the wellhead, downhole via capillary string, or at pipeline junctions. For batch treatment, the inhibitor is pumped as a slug between pigs or circulated through the system.

Q: What is the recommended dosage rate?
A: Typical continuous dosage is 10-50 ppm based on total produced fluids. The optimal dosage should be determined through corrosion coupon monitoring or corrosion probe data at your specific operating conditions.

Q: Is the inhibitor compatible with downstream refining processes?
A: Yes, our imidazoline-based inhibitor is formulated to be refinery-friendly, with no adverse effects on catalyst systems, desalting operations, or product quality at typical treatment concentrations.

Q: How long does the protective film last?
A: Under continuous flow conditions, the film provides protection for 24-72 hours after inhibitor injection stops. The exact persistence depends on flow velocity, fluid composition, and temperature.

Q: Do you offer inhibitor performance testing services?
A: Yes, our laboratory can perform corrosion rate testing using customer-supplied fluid samples to determine the optimal inhibitor type and dosage for your specific application. Contact our technical team for test arrangements.