46 Measurement and Testing Sample Cylinder Service Enhanced to Deliver Client Cost Savings

Intertek (UK), has enhanced its sample cylinders services to provide signifi cant cost savings for clients. Sample cylinders are used by offshore chemists to transport live crude, gas and water samples from offshore to onshore laboratories for testing. Intertek has invested £180,000 in 200 high-pressure cylinders to meet an increased demand from clients for analysis services.

Fifty cylinders will be specially coated to allow the safe and effective transportation of samples containing mercury and hydrogen sulphide. Both elements can adhere to the internal surfaces of standard stainless steel cylinders, rendering analysis unreliable.

Doug Finnie, Operations Manager for Intertek Exploration and Production, said: “All platforms must undertake sampling and analysis for many different reasons. For example, installations individually monitor their own contaminants, discharges and emissions.

Due to a heightened awareness of the impact these have on the environment and platform infrastructure, legislation and specifi cations have become stricter, with allowable levels being reduced over time. This has led to an increase in analysis services and a higher demand from clients for these kinds of cylinders.

“We previously rented cylinders from third parties on the clients’ behalf, but handling these in-house means now we can add value to the service and create cost savings for clients. For some of our customers, we believe that this could be tens of thousands of pounds per year.”

Intertek’s independent testing and consultancy services provides a wide range of Production Support laboratory services, including crude oil, gas and water analysis, oil condition monitoring, oilfi eld microbiology, equipment procurement, offshore manpower provision and laboratory design.

The company also offers a range of related Exploration and Production services, including chemical selection, reservoir souring and modelling and failure assessments.

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Handheld Monitors for Measuring pH, ORP, Conductivity and Oxygen in Hazardous Areas

Endress+Hauser (USA) releases Liquiline To Go CYM290 and CYM291 portable handheld multiparameter monitors for use with analogue and digital sensors. Each device automatically detects when any Memosens sensor is connected and switches to the appropriate measured variable. By simply plugging a Memosens sensor into the monitor, a technician can measure conductivity, ORP, pH or oxygen. The battery-powered monitor also displays sensor type, serial number, zero point, slope and date of calibration for the sensor.

Liquiline To Go monitors permit a technician to enter a process area, connect the monitor into any Memosens sensor, read the measured value, transfer all data into the monitor, and calibrate the sensor. This can be especially useful when installing new sensors in the process, when conducting regular maintenance checks, or when performing calibrations in the measuring laboratory. Performing these operations with a Liquiline To Go monitor guarantees full data consistency because it allows the use of the same measuring technology in the laboratory and in the process.

pH, ORP, conductivity and oxygen sensors from Endress+Hauser with Memosens technology have integrated electronics that allow for saving calibration data, total hours of operation, and operating hours under extreme measuring conditions. Once the sensor has been connected to the Liquiline To Go monitor, this data is transferred automatically to the portable monitor and used to calculate the measured value. Because calibration data is stored in the sensor, the sensor can be calibrated and adjusted independently of the measuring point. Data transferred to the monitor can be downloaded into a maintenance management program for further analysis.

Memosens is an inductive, non-contact connection used to connect the sensor to the monitor for maximum process safety. The non-contact connection also eliminates moisture and corrosion issues, and even allows the monitor to be connected under water. The CYM291 monitor is IECEx and ATEX certifi ed for use in hazardous areas up to Ex Zone 0, and both models have IP66/67 ingress protection with pressure compensation.

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Fuel and Aviation Fuel Condition Monitoring Based on IP 577 as part of DEF STAN 91-91

Fuel is less viscous than oil. In low viscous fl uids, the particles slump down in the liquid and build a sediment at the bottom of the bottle (sedimentation). Individual particles might also stick together during storage and become agglomerated bigger particles (agglomeration). Before a sample can be analysed via laboratory measurement instruments, it needs to be prepared with applied mechanical energy to re-disperse the particles in the liquid. Before undertaking laboratory particle analyses, the sample thus must be adequately prepared for measurement. In case of online measurement, sample preparation is not at all afforded, as the liquid is directly taken in its original physical state during operation. To avoid phenomena of sedimentation and agglomeration during measurement, particle counters for fuel analysis are equipped with special features, adapting them best to the specifi c requirements of fuel condition monitoring.

For Jet fuel analysis, PAMAS (Germany) has developed the portable particle counter PAMAS S40 AVTUR which can be used both for online and batch sampling. The system is compliant with the IP 577 analysing method of the Energy Institute London and to the DEF STAN 91-91 standard of the British Ministry of Defence.

Beyond Jet fuel, the PAMAS S40 AVTUR is also used for testing diesel and other fuel types.

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Is a Digital Probe Better than a Mercury Thermometer for Petroleum Tests?

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The mercury thermometer is still the standard device to measure temperature in many manual petroleum tests such as fl ash point, distillation, viscosity and cold property tests but there are a number of reasons for changing to a digital probe; safety, more reliable and repeatable results and better workfl ow or data tracking support.

Mercury is toxic to humans and because of environmental and safety regulations, shipping these thermometers has become increasingly complicated in many countries. Digital probes are safe and easy to handle.

The temperature measurement from a mercury thermometer relies on

human interpretation which has a direct impact on the reproducibility of results. The use of a digital probe eliminates the operator bias or any possible human error factors and offers more accurate and repeatable results.

A digital probe provides digital data, which can be easily exported to data handling software (LIMS).

ORBIS BV (the Netherlands) are currently developing AirProbe, a small device that clips onto a digital probe, and wirelessly connects to a smart interface (e.g. Apple iPod).

The easy-to-use software app provides full reports that include temperature,time data and even volume point data for semi automatic distillation tests.

AirProbe can be combined with multiple probes for the various test applications, and multiple AirProbes can be connected to one interface in a network confi guration.

ORBIS BV welcomes comments, questions and suggestions from readers of Petro Industry News.

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JUNE / JULY • WWW.PETRO-ONLINE.COM For More Info, email:

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