Chemical Monitoring
Systematic assessment of fluid aggressiveness using gravimetric, microbiological, and electrochemical techniques to monitor internal and external degradation of infrastructure.
Industrial Microbiology Diagnostics (SRB / APB)
Identification of microbiologically influenced corrosion (MIC) through cell counting and molecular techniques for the control of sulfate-reducing bacteria.
Direct Measurement of the Corrosion Rate
Implementation of weight-loss coupons and electrochemical probes in accordance with NACE/AMPP standards to determine the severity of degradation in mils per year (mpy).
Physicochemical Characterization of Multiphase Systems
Specialized analysis of production water, natural gas, and suspended solids to calculate saturation indices and the risk of scaling.
Telemetry and Continuous Remote Monitoring
Integration of linear polarization resistance (LPR) probes and remote transmitters with integrity platforms for real-time monitoring of variables.
Comprehensive Chemical Monitoring Solutions
Through the physicochemical characterization of process fluids and the direct analysis of corrosion test specimens, we provide the technical information needed to adjust inhibitor dosages and protect the integrity of assets.
Certified Experience
More than 25 years of technical experience in Oil & Gas and energy across 6 Latin American countries.
Years of experience in this service
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1
Projects executed
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1
Km of CIPS inspections
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1
Incident-free assessments
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1
mill h/m
At TECNA ICE, we combine the disciplines of analytical chemistry, microbiology, and corrosion engineering to provide a comprehensive assessment of the corrosiveness of your process fluids.
Frequently Asked Questions
What is the recommended frequency for replacing and inspecting internal corrosion coupons?
According to the general standard (NACE SP0775), gravimetric coupons are exposed for periods ranging from 60 to 90 days. Exposures shorter than 30 days may reflect transient, unrepresentative rates, while periods longer than 120 days may saturate the coupon with corrosion products.
How does the presence of sulfate-reducing bacteria (SRB) affect carbon steel pipes?
SRBs consume the cathodic hydrogen produced on the metal’s surface and reduce sulfates to sulfides, causing severe, accelerated localized pitting corrosion that can perforate the pipe in a substantially shorter time than general corrosion.
What is the difference between gravimetric monitoring (coupons) and electrochemical monitoring (LPR/ER)?
Gravimetric coupons provide an average cumulative corrosion rate over the exposure period. Electrochemical probes (LPR and ER) provide instantaneous, real-time readings, allowing for the immediate detection of sudden changes in fluid corrosivity caused by inhibitor injection failures or oxygen ingress.
Why is it necessary to test production water to assess internal corrosion?
Liquid water is the essential electrolyte for the electrochemical corrosion process to occur. Knowing its pH, salinity, and the presence of dissolved CO2H2S and scaling ions makes it possible to calculate the probability of acid corrosion or deposit-induced corrosion and to adjust the chemistry of the preventive treatment.
How does an external anode work in a cathodic protection system?
The external coupon simulates an uncoated defect in the buried pipe. By momentarily interrupting its connection to the pipe, the “OFF” potential—free of IR drop—is measured to assess whether the cathodic polarization level in the metal meets the immunity criteria specified in NACE SP0169.
What information does X-ray diffraction (XRD) analysis provide about corrosion products?
It identifies the exact crystalline structure of the deposits. For example, distinguishing between troilite, mackinawite (indications of corrosion by H2S or SRB), and siderite (FeCO2), which indicates corrosion by CO2, makes it possible to confirm the active damage mechanism within the system.
Is it possible to install corrosion monitoring points on lines that are in full operation?
Yes. Using high-pressure access fittings (2,000–6,000 psi) and low-pressure retrieval tools (retriever tools), our technicians install or remove test coupons and probes without having to depressurize or shut down the line.
How is chemical monitoring data integrated with NDT inspection plans?
Corrosion rate data (mpy) and microbiological count data are uploaded to the PIDT platform. If an increase in the fluid’s corrosiveness is detected, the system adjusts the risk model and reschedules NDT ultrasonic inspections for the affected segments.
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Laboratory-level analytical rigor applied to solving corrosion problems in the field.
Real-Time Monitoring Solutions
Deployment of telemetry technology and electronic probes for continuous monitoring of the instantaneous corrosion rate.
Multidisciplinary Diagnostic Capacity
A combination of gravimetric, physicochemical, microbiological, and metallurgical analyses to identify the root cause of the deterioration.
Compliance with AMPP / NACE / ASTM Standards
Field procedures and laboratory tests conducted in accordance with recognized and auditable international methodologies.
Integration with Global Integrity Management
We transform laboratory chemical data into input variables that can be used directly within the company's PIMS/RBI plans.
