Performance and compatibility of a Corrosion Inhibitor in a Pipeline
These are the main factors to consider when analyzing the Performance and Compatibility of a Corrosion Inhibitor in a Pipeline.
1. Purpose of the Trial
Evaluate the performance and compatibility of Nocorgreen™ as a biodegradable, non-toxic corrosion inhibitor in a live pipeline environment handling oil and gas mixtures or produced water.
NOCORGREEN corrosion inhibitor
2. Key Product Features of Nocorgreen™
Made from aloe-based compounds and plant extracts
Acts as a film-forming corrosion inhibitor
Effective for carbon steel and other metallic surfaces
Compatible with high salinity, H₂S, CO₂, and produced fluids
Biodegradable, non-toxic, and environmentally safe
3. Pipeline Trial Parameters
A. Pipeline Specifications
Parameter
Value (Example)
Pipeline material
Carbon steel (API 5L)
Fluid type
Crude oil, produced water, gas condensate
Pressure
20–60 bar (300–900 psi)
Temperature
40–80°C
Flow regime
Stratified or slug flow
Corrosive elements
CO₂, H₂S, high TDS produced water
Length of test zone
500–1000 m (isolated section)
B. Fluid Composition Factors to Consider
pH of water phase: Nocorgreen™ performs better in pH > 4
TDS / salinity: Must be quantified before trial
Presence of bacteria (SRB): Bioactivity can impact results
Emulsions or oil/water ratio: May affect film formation
4. Dosage and Injection Method
Dosage Range:
Manufacturer suggests low – medium ppm range: typically 40–1500 ppm
Start with 1000-1500 ppm for trial stability, then reduce
Injection Method:
Step
Description
1. Injection point
Install upstream of corrosion-prone area
2. Pump system
Use a calibrated metering pump with pulsation dampeners
3. Duration
Continuous injection over 72 hours to 7 days
4. Monitoring
Inline corrosion probes, coupons, and fluid sampling
5. Evaluation Metrics
Metric
Method
Corrosion rate
Weight loss coupons, LPR probes
Deposit/film formation
Visual inspection and SEM if available
Compatibility
Filter analysis, fluid separation tests
Emulsion tendency
Bottle tests
Residual chemical detection
GC or HPLC if necessary
6. Safety and Environmental Considerations
Non-toxic, but use PPE during handling
Avoid direct exposure to high-temperature zones during storage
Ensure containment systems in case of spills
Comply with local environmental regulations for discharge
7. Trial Execution Plan (Simplified)
Baseline Monitoring (Pre-trial, 24 hours):
Corrosion rate
Pressure/temperature/flow
Chemical composition of fluid
NoCorGreen™ Injection:
Start at 1000-1500 ppm using metering pump, after second day reduce to 1000 ppm. After 4th day stabilize between 400 to 800 ppm.
