On-site service
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On-site sampling and analysis
Trace Analysis
Early quantification of on-site trace elements produced together with petroleum fluid during exploration/ appraisal well and production well startup is important to ensure pipeline, process specification, and transportation systems can be met. Some of the elements are incombustible with no economic value and others are toxic, corrosive, poisonous, and environmentally unfriendly. Special topside facilities and treatment have to be identified to overcome these issues to ensure the quality of the oil and gas produced.
Many of these elements have the tendency to absorb onto the metal surface. Even though we can find specially coated sampling cylinders to transfer samples for offsite laboratory analysis, onsite measurements are highly recommended to ensure accurate value is achieved.
Our Methodology and Equipment
Trace Element Component | Methodology/ Equipment |
Carbon Dioxide (CO2) | Drager tubes or MicroGC |
Hydrogen Sulphide (H2SO4) | Drager tubes or MicroGC or titration UOP 212 |
Nitrogen (N2) | MicroGC with TCD detector |
Helium (He) | MicroGC with TCD detector |
Mercaptane (R-SH) | Drager tubes or MicroGC or titration UOP 212 |
Mercury (Hg) | Mercury Analyzer ISO6978(Gas) UOP 938 (and ASTM D6722)-Liquid. |
Radon-222 (Rn) | Radon Detector |
Another element to analyze;
- Water Content in petroleum liquid –Karl Fisher titration method
- BS & W –Centrifuge
- Microbiological in water i.e. E-Coli, Coliform – Microb test kits
- 12 ion water analysis – Water test kits
- Arsenic in gas – Sampling using the absorption method, analysis by AAS