Delivering Measurement Excellence

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Fully accredited, KELTONTM is the leading independent measurement consultancy and software developer for the oil and gas industry. 


Since 1991, KELTON has provided consultancy services to some of the biggest names in the oil and gas industry – including both international and national oil companies – to ensure their full flow measurement compliance with industry regulations.

Having completed over 2,500 audits and trained more than 5,000 flow measurement professionals, KELTON has earned a worldwide reputation for the provision of outstanding flow measurement consultancy, independent audit and training services.

KELTON's consultancy services include:

System Compliance

Leading audit services delivering assured performance and certified compliance


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System Assurance

Ensuring accuracy with proven calculation models to assess and validate system uncertainty

 Design uncertainty
 System uncertainty

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System Support

Delivering peace of mind through best practice operator training and long-term support partnerships

 Support partnerships

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Drawing upon this vast experience, KELTON has developed a range of software solutions to support the design, operation and management of your flow measurement system.

Expertly designed by measurement engineers for measurement engineers, users can benefit from the most comprehensive set of calculations available. And with full traceability of all calculations to the latest industry standards, KELTON's applications support continued system performance and compliance.

KELTON's software solutions include:



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Measurement Consultancy:
Flow Measurement Consultancy
Flow Measurement Software:
Flow Measurement Software
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