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Leak Detection And Repair – LDAR – Fugitive Emission Management

Identify leaking equipment, reduce VOC emissions and report credible emission figures

LDAR or more specifically Leak Detection and Repair (LDAR) is a program that identifies unintended or fugitive emissions from equipment in an oil and gas, chemical or petrochemical installation. It drives maintenance activities to reduce emissions to the atmosphere effectively.

Every potential leaking source is examined with a sniffing device such as an FID / PID device or Phoenix 42. The quantification of the emissions follows the EPA Method 21 protocol or a similar country-specific or customer-specific regulation.

We successfully executed more than 9.000 LDAR projects globally and have 30 years of experience in the industry. Rely on expert LDAR measurements and advisory so you can minimize product loss and save costs.

Case studies

TotalEnergies Belgium

What does 20 years of LDAR for TotalEnergies in the Port of Antwerp tell us? Discover more in the case study.


Gasunie has realized significant results over the years with our LDAR program and emission quantification.

Genel Energy

Genel Energy in Iraq contacted us to perform LDAR in their new Sarta facility in Kurdistan.


According to Shell Deutschland GmbH, LDAR is more than just holding a camera. Why did they reach out to us?

Regulations, standards, and protocols we comply with

  • OGCI – Oil & Gas Climate Initiative
  • EPA-453-R95-017
  • NEN-EN 15446
  • VLAREL 11.1 and VLAREL 11.3
  • NTA8399:2015
  • MilieuMonitor 14 and 15
  •  NL Activiteitenbesluit / ZZS regulations
  • Chemelot
  • 40 CFR Part 60, Subpart OOOOa
  • AER Directive 060
  • Saudi Aramco Protocol
  • ADNOC Gas Processing Guidelines [Ref: HSE-GU-025 (rev 1); Dec 2018]
  •  RCER
  • Shem-13.06
  • QP procedure for implementation of methane leak detection and repair (LDAR) program
  •  ISPRA
  • Clean Air Law 5768 – 2008
  • OGMP 2.0 – Oil and Gas Methane Partnership
  • Proposal for a EU Regulation on methane emissions reduction in the energy sector

Benefits of Leak Detection And Repair

Identify, quantify and reduce

Correct identifications and quantifications allow effective priority setting for repair maintenance activities and focus on bad actors.

Comply with legislation

Demonstrate compliance to local legislation permission requirements related to maximum emissions and reduction targets and manage your reputation.

Report in a reliable way

Rely on a credible, auditable and transparent report with aggregated and detailed emission figures per medium; per source type, per stream and so on.

These companies preceded you

Mark Pauwels
Mark Pauwels
Environmental Manager, TotalEnergies Antwerp
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Our collaboration with Intero - The Sniffers of more than 20 years is based on working with trustworthy experts who master the best available techniques to manage fugitive emissions and achieve energy savings. They anticipate to changes in legislation and update us accordingly.
Jan-Oliver Schwarzlose
Jan-Oliver Schwarzlose
Emission Specialist - Shell Deutschland GmbH
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LDAR is more than just holding a camera. The credibility of third party emission figures towards stakeholders, the expertise and in-depth reporting really make a difference.
Ronald Kenter
Ronald Kenter
Environmental Coordinator, Gasunie
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Our team has all the information at their fingertips to make well-considered decisions on reparation and maintenance activities. The repair orders really give us in-depth information about the leaks. We saw a significant reduction of emissions in the beginning, which eventually resulted in a more stable situation with lower emission rates and we hope to maintain this stability.
Andrew Benbow
Andrew Benbow
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Genel Energy contacted Intero - The Sniffers to conduct a LDAR (Leak Detection And repair) campaign with best available technologies to ensure near-zero methane emissions from processing facilities.