Reducing the risks of H2S exposure in the processing industry
—No matter whether on a greenfield or brownfield, or during field exploration, development or closure, hydrogen sulfide (H2S) presents a constant threat to workers and rescuers in any phase of oil and gas exploration and production. However, this is not the only area in which H2S exposure may occur. It also poses as a problem in the chemical industry, the heavy and metal industry and even in the pulp and paper industry. That’s why safety management should focus on H2S detection and monitoring, incident prevention and rescue preparedness. At Dräger, we are well-versed with precise measurement of H2S, monitoring of H2S release spots and emergency escape concepts – and you can have trust in us to help you carry out your work safely.
H2S dangers: knowledge can save lives
Hydrogen sulfide, is a highly toxic gas, and can unexpectedly occur during routine work, especially at nearly every workplace in the oil or gas industry. Incidents with high concentrations of H2S can lead to severe negative health effects, or even to death, within seconds. It’s important to understand the implications of this hazardous substance because good knowledge of precise H2S monitoring can save lives.

H2S exposure: knowledge can save lives
Hydrogen sulfide, a toxic gas, can unexpectedly occur during routine work. This guide will help you better assess potentially dangerous situations involving hydrogen sulfide.

Hydrogen sulfide: highly explosive and toxic
As hydrogen sulfide is toxic even in low concentrations, detection of this gas is imperative. In very low concentrations it is easily noticeable as it smells like rotten eggs. However, lethal concentrations of H2S cannot be nasally detected. Due to severe negative health effects, it’s important to learn all about the implications of this hazardous substance.
Detection and monitoring of H2S dangers
Hydrogen sulfide is one of the most commonly occurring hazardous substances in the oil and gas industry. It is colourless and builds up at ground level, therefore continuous monitoring, early detection and assessment of the present hydrogen sulfide concentrations is crucial. H2S gas monitors help workers stay safe in hazardous environments. They are designed to alert employees when a previously determined minimum or maximum set point of H2S has been reached.
Strategies for H2S monitoring
When it comes to choosing the right measuring and monitoring strategy it is important to consider the scope of time for the area monitoring and the possible H2S concentration. Different phases in oil and gas mining projects require different H2S detectors.
Test drillings
Proceed based on geological forecast. H2S content is yet unclear.
Assessment phase
No continuous monitoring, but personal monitoring possible when the field is being inspected.
Development phase
Mobile area monitoring, following the work advance.
Production
Continuous monitoring necessary over a long period (ca. > 10 years), stationary gas equipment installation recommended.
EOR (Enhanced Oil Recovery)
The drilling of oil through injection of compressed gases in deeplying rock layers increases the risk of a sudden release of extremely high H2S concentrations.
Overview: H2S monitoring
H2S dangers especially in the oil and gas industry frequently occur in areas with highly adverse environmental conditions: Extreme heat or cold, salt water and dust formation as well as the corrosive effect of H2S cannot negatively influence the reaction capability and measurement performance of detectors. Stationary and mobile measuring devices must be able to measure and alert under the hardest of industrial application conditions – reliably around the clock.

H2S monitoring in the oil and gas industry
Prevention measures against H2S dangers are crucial and can be implemented successfully with the right amount of know-how, training and good measurement strategies.
Safe at every step: H2S detectors

Dräger SensorAlive H₂S
The Dräger SensorAlive is an electrochemical sensor with an integrated gas generator. The gas generator enables daily automatic sensor testing with hydrogen sulfide (H2S) as the test gas.

Dräger Quasar SafEye™ 950 and 960
In order to monitor larger distances and plant areas these highly specialised open-path UV gas detection systems provide reliable gas leak monitoring and allows gas detection along an open measuring section.

Dräger Polytron® 8100 EC
The Polytron® 8100 EC is Dräger’s top of the line explosion proof transmitter for the detection of toxic gases or oxygen.

Dräger Pac® 6000
The disposable personal single-gas detection device, Dräger Pac® 6000, measures CO, H2S, SO2 or O2 reliably and precisely, even in the toughest conditions.

Dräger X-am® 5000
The Dräger X-am® 5000 is a 1- to 5-gas detector reliably measures combustible gases and vapors as well as oxygen and harmful concentrations of toxic gases, organic vapors, odorant and amine.
H2S gas monitors for short-term flexible deployment with wireless solutions
While a prospective field of work is being explored, it’s not worth it to install permanent gas detection systems at that time. Here’s where a short-term deployment comes in. The Dräger X-zone 5500 transforms the Dräger personal gas detection instruments X-am 5000 and 5600 into flexible area monitoring devices. Or there is a need to set up a reliable gas warning system in the plant areas, which require mobile solutions, are difficult to reach or do not provide any infrastructure. The Polytron 6100 EC WL wireless gas detection transmitter reduces your planning effort required whilst retaining the same safety levels provided by a wired transmitter.

Quick & easy: Mobile gas monitoring
Learn more about how to find an efficient solution for short-term deployments.
Protection against H2S
To ensure that oil field workers are adequately protected from H2S dangers even in the case of extraordinary high concentrations, they must have H2S respirators with a correspondingly high protection factor available.

Safe breathing - even with extremely high H2S concentrations
In this video you can learn more about the severe implications of H2S exposure and how to protect your staff from harm
Knowledge on respiratory protection

H2S respiratory protection
Improve your safety level with knowledge about protection factors and test methods.

How to be prepared for high H2S exposure
Realistic tests of self-contained breathing apparatus demonstrate that you can protect yourself even from extreme H2S dangers.
Escape from H2S environments
In H2S scenarios there is no time to lose, every second counts. The choice of respirators and their proper use are critical to protect the lives of workers. To determine the most appropriate escape respirator for an H2S event emergency response plan, the degrees of severity that the event will present and the potential H2S exposure levels must be assessed. Correlating standards and guidelines that vary globally need to be taken into account. Given the great health hazards caused by H2S, only reliable protective equipment can save lives.
How to identify the best H2S escape respirator

Infographic: Choosing the right emergency escape devices
For every emergency there is an appropriate H2S respirator at hand. Use this escape chart to find out which one is the most suitable. Consider every possible emergency scenario. Download this emergency escape chart to help you plan.

The best escape respirator: everything you need to know
Deepen your knowledge of how to choose the best escape breathing apparatus for your emergency response plan.
At Dräger we offer you a broad range of rescue and escape devices
Life-threatening situations can occur in seconds. When choosing the appropriate H2S respirator the possible health hazards, the time needed for escape and other individual criteria are of the essence.

Dräger Saver PP

Dräger Oxy® 3000/6000 MK II
Get in touch with Dräger
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No. 6, Jalan 15/22, Taman Perindustrian Tiong Nam, Seksyen 15, 40200 Shah Alam,
Selangor Darul Ehsan, Malaysia
2504-C West Tower, Tektite Towers, Exchange Road, Ortigas Center,
Pasig City 1605 Metro Manila, Philippines
Not all products, features, or services are for sale in all countries. Please contact your local Dräger representative for more information.





