Onsite Trace Analysis

Early quantified of on-site trace element produced together with petroleum fluid during exploration/ appraisal well and production well start up is important to ensure pipeline, process specification and transportation systems can be met. Some of the element 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 quality of the oil and gas pro- duces.

Many of these elements have tendency to absorb onto the metal sur- face. Even though we can find special coated sampling cylinders to transfer sample for offsite laboratory analysis, onsite measurement are highly recommended to ensure accurate value is achieved.

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

Analysis provided; Other interested element to analyze;

  1. Water Content in petroleum liquid –Karl Fisher titra- tion method
  2. BS & W –Centrifuge
  3. Microbiological in water i.e. E-Coli, Coliform – Microb test kits
  4. 12 ion water analysis – Water test kits
  5. Arsenic in gas – Sampling using absorption method, analysis by AAS
Varian GC

Varian GC

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Radon meter

Radon meter

Hg Leco analyser

Hg Leco analyser