Wilks Enterprise - Portable Oil in Water Analyzers for On-Site Measurements

Wilks Enterprise, founded in 1995, specializes in easy-to-use, portable infrared analyzers with the oil and gas industry as one of its primary markets - both offshore and onshore. Today, Wilks has well over 2,500 InfraCal TOG/TPH analyzers in operation worldwide measuring the oil and grease levels in produced water, oil content in FRAC water, hydrocarbons in wastewater effluents from refineries, and TPH in soil at remediation sites.

Easy-to-use oil in water analyzers

Designed specifically to be rugged, compact (under 5lb), and easy to use by non-technical personnel, InfraCal analyzers have become the instrument of choice for on-site analysis of oil in water, providing measurement results in less than 15 minutes.

InfraCal TOG/TPH analyzers eliminate the wait for off-site lab results to ensure oil in water levels comply with discharge permits, as fines for non-compliant discharges can be costly.

InfraCal TOG/TPH analyzers:

• Eliminate waiting for off-site lab results
• Provide oil content measurements in 10-15 minutes
• Help avoid fines for out-of-compliance produced water discharges
• Are easy to use by non-technical personnel
• Use infrared technology based on DTI, EPA and ASTM methods
• Have no effect on measurement from methanol
• Are designed for years of dependable, accurate operation

Oil in water analyzers for non-technical personnel

Two InfraCal TOG/TPH analyzer models are available for measuring oil in water. Both are ideal for use by non-technical personnel.

The InfraCal IR platform analyzer, Model HATR-T2, uses hexane, pentane or Vertrel MCA for the extraction process. Measurement data obtained with InfraCal Model HATR-T2 will correlate to EPA Method 1664 as both procedures are based on evaporation techniques and measuring the residual oil and grease.

The InfraCal IR platform analyzer, Model HATR-T2, is equipped with a built-in cubic zirconia horizontal attenuated total reflection (HATR) stainless-steel sample stage on which the extract is deposited for analysis. The sample preparation takes a few simple steps and the ppm hydrocarbon result is obtained in less than 15 minutes. The InfraCal Model HATR-T2 has a minimum detectable limit of 8ppm oil in water.

The InfraCal cuvette holder analyzer, Model CVH, is based on US EPA Methods 413.2 and 418.1 and ASTM D7066-04, which uses Freon 113, a hydrocarbon-free grade of perchloroethylene, S-316, or AK-225 as the extracting solvent. Since the oil concentration is measured directly in the solvent, light end volatile components are retained, making it ideal for gas condensate measurements. The sample preparation takes a few simple steps and the result is obtained in less than 10 minutes. The InfraCal Model CVH has a minimum detectable limit of 2ppm oil in water. It was one of the instruments used to develop the ASTM D7066 oil in water method.

Oil in water analyzers based on infrared technology

The analysis of oil in water by infrared technology is not new to the oil and gas industry as it has been used worldwide for over 30 years. Unlike UV fluorescence, which only measures aromatic hydrocarbons, infrared measures both aromatic and aliphatic hydrocarbons. If there is any change in the aromatic/aliphatic ratio in produced water, infrared will see little effect while UV fluorescent analyzers will require recalibration.

The InfraCal TOG/TPH analyzers are accurate, cost-effective and easy to use by both non-technical personnel and skilled technicians. They provide an analysis method that is ideal for on-site use, as well as in the analytical or testing laboratory.

Biodiesel blend and ethanol blend analyzers

With the increase of biodiesel and ethanol blended into petrol fuels, those involved in the downstream end of fuel distribution need a quick and easy way to measure how much biodiesel is blended in diesel fuel or ethanol into gasoline. Using the same technology as the InfraCal TOG/TPH analyzers, the InfraCal biodiesel blend and ethanol blend analyzers are compact, portable and designed for the rugged environment of a fuel terminal. Benefits and features include:

• No sample preparation necessary
• Analysis less than 1 minute
• Biodiesel measurement range: 0.2%-100%
• Ethanol measurement range: 0.2%-98%