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Atmos International's Pipeline Leak Detection System

Our product range includes a wide range of atmos wave leak detectors, atmos tightness monitor and atmos sim.

Atmos Wave Leak Detectors

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Atmos Wave Leak Detectors
  • Atmos Wave Leak Detectors
  • Atmos Wave Leak Detectors
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Product Details:
BrandATMOS INTERNATIONAL
Usage/ApplicationLeak Detection Of Pipelines
Power Source24 V DC
Ip GradeIP65
Operating Temperature-10 to 85 D C
Sensing ModePressure and Flow Transmitter
Range09.99 mW/cm2

Atmos Wave detects the rarefaction wave caused by a leak in a pipeline. When a leak occurs, a rarefaction wave travels in both directions along a pipeline. Using fast response pressure meters Atmos Wave filters the pressure signals to find those with the frequency and magnitude of a leak. The time at which the pressure signal reaches each pressure meter is used to determine the location of the leak extremely accurately. Atmos Wave is the result of several years of research and development directed at producing a pressure-based leak detection system that is capable of differentiating between pressure waves that originate from pinhole leaks and the background noise and other pressure signals caused by normal pipeline operations. Extensive performance evaluation and field trials have proven that Atmos Wave can detect small leaks without generating false alarms due to pipeline transients or process noise.


Features Include:

· Very low false alarm rate

· Based on high performance, off the shelf pressure meters from reputable manufacturers

· Detection of leaks less than 1% of nominal flow-rate within 4 minutes, resulting in a very small product release before a confirmed leak alarm

· Detection of existing pinhole leaks, under running or shut-in conditions

· Location of leaks within ± 100 to ± 400 metres depending on operational conditions during the leak

· Dedicated data acquisition unit (AWAS) certified to the European Union's ATEX Zone 1 standard, with local data storage to mitigate the effect of communication failures

· Detection of pipeline thefts effectively including the closure of a theft valve, which is very useful for identifying theft locations


Sensors Used:

  • Primary sensors are pressure sensors positioned 0.3km – 240km apart
  • Flow and pressure can serve as secondary inputs for full section coverage (i.e., no blind zones close to the pipeline ends)
Main Benefits
  • Detects when thieves open or close the theft valve on an illegal tapping point
  • Accurately locates the theft or leak
  • Easy to retrofit
  • Detects leaks during steady-state, transient and shut-in conditions
System outputs
  • Leak alarm
  • Leak location
  • Leak rate and volume lost
  • Leak time
  • Watchdogs via OPC

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Atmos Tightness Monitor

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Atmos Tightness Monitor
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Product Details:
BrandATMOS INTERNATIONAL
Usage/ApplicationAirport
Aviation ComplianceEI 1540, EI 1560, JIG2, and JIG4
Minimum detectable leak size0.04 l/hr/cu m
Test time45 Minutes
Sensor requirementsPressure Transmitter

Atmos Tightness Monitor is a statistical tightness monitoring system used to test for leaks in airport hydrants. It uses sequential probability ratio test (SPRT) to detect changes in the overall pressure. SPRT analyzes the pressure variation over a high pressure and then a lower pressure to confirm the tightness of a test section. The system does not require temperature sensors for leak confirmation. Atmos Tightness Monitor leak detection technology is widely used in liquid pipelines, monitoring approximately 200 pipelines many of which transport jet fuel over distances from as small as 100 meters to a few kilometres. Atmos successfully adapted and tested Atmos Tightness Monitor for airport aviation fuel hydrant systems, initially for military airports and naval bases where it has been in use since 2004. Atmos Portable Tightness Monitor was developed based on many years of experience working with leak detection systems on airport hydrants. Testing takes no more than 45 minutes with on-screen prompts notifying the stages of the test to the operator.


The challenge
An efficient and effective fueling system that delivers fuel safely is critical for quick turnaround to keep the planes running as scheduled in both commercial and military airports. The consequence of hydrant leaks can be very high. These can range from fuel contamination, to financial implications and safety impact. Locating the leak on a few kilometers of hydrant network can be time-consuming and costly


Benefits
•Leak location to within 1m

•0.04 liter/hr/m³ leak size requirement met

•Ability to handle passing valves

•Tightness test complete in 45 minutes

•Utilizes existing pressure sensors

•EI1540, EI1560 & JIG2 standards met


What is Atmos Tightness Monitor?

Atmos Tightness Monitor is a statistical tightness monitoring system that tests for leaks in airport hydrants. It uses the powerful sequential probability ratio test (SPRT) to confirm the tightness of a hydrant section in the shortest time possible.


Each section to be tested should have:

  • Monitored block valves bounding the section
  • Pressure measurements in the section


SPRT analyzes the pressure variation over two different pressure settings. The test section valves close at a high pressure. Atmos Tightness Monitor then interacts with the control system to analyze the pressure in the test section. The test section is then de-pressurized to a lower pressure and analyzed again. Temperature sensors are not required. Hence when providing leak confirmation, the system uses pressure sensors alone. An acoustic sensor and a Wave Gen data acquisition unit are installed to provide leak location.

System Outputs:

  • Leak alarm
  • Leak rate
  • Tightness test report

 

Sensors Used:

  • Single pressure transmitter per segment
  • Valve position data
  • Temperature data required only if pressure decay method used

 

 

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Atmos SIM

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Atmos SIM
  • Atmos SIM
  • Atmos SIM
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Product Details:
BrandATMOS INTERNATIONAL
Usage/ApplicationLeak Detection In Pipelines
Sensitivity1 %
Principle of leak detectionReal Time Transient Modelling (RTTM) and SPRT
Leak location accuracy2 % of monitored section eg. for 2 km pipeline accuracy would be 40 meters
API complianceAPI 1130, API 1175, API 1155, API 1149, CSA Z662, German Regulations for Pipeline Leak Detection

Atmos SIM is a pipeline transient simulator developed from the ground up by Atmos International ("Atmos") for both online and offline applications. Additionally Atmos SIM can be used for Gas and liquid pipelines as well as transmission and grid network systems. Whether you are a pipeline modeller or a pipeline control room engineer, Atmos SIM has the features to address your requirements. ATMOS SIM models the hydraulic behaviour of both gas and liquid pipelines accurately. SIM Offline supports the planning and design analysis of pipeline networks, SIM Online gives the pipeline operators a view into the un-instrumented areas of the pipeline to assist them in running their pipelines. The same configuration applies to ATMOS SIM Offline and Online. Online saved states can be imported to SIM offline for realistic scenario analysis and emergency studies. Atmos SIM on-line uses a unique state estimator to provide the most robust and accurate on-line simulation results in the market. It minimizes the effect of measurement errors by the use of confidence levels in individual meters. This is especially useful for large pipeline networks. Atmos SIM is a powerful and user-friendly tool for the following applications on any gas pipelines:

  • Design and sizing of new pipelines and associated equipment such as compressor, heater and cooler
  • Operational scenario analysis for planning, emergency or upset analysis
  • Calculation of flow, pressure, temperature, gas properties along a pipeline
  • Look-ahead modelling
  • Line pack (inventory) calculation and survival time analysis
  • Composition tracking
  • Pig tracking
  • Leak simulation
  • Simulation of natural gas, low pressure ethylene and chemical pipelines
  • Model-based leak detection.
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