Ensuring The Safety Of Onsite Personnel And Neighboring Community During Workover And Well-testing Activities With A High H₂S Risk Potential – A Case Study

OMV Petrom had a planned workover and well-testing activity on a well with high potential concentration of hydrogen sulfide (H₂S) located 200 meters from a neighboring community. To ensure safety during the workover and well-testing activity, a leading oil and gas group in Central Europe undertook a careful preparation of processes, systems and its personnel. Considering the proximity of the wellsite to the community, they also needed to inform and educate the surrounding community.

Servizi Integrati di Sicurezza (S.I.S. S.r.l.), part of United Safety International Group was given the task to ensure the safety of personnel and neighboring community through effective preventive actions including extensive H2S training and prevailing wind monitoring. A site-specific Emergency Response Plan (ERP) was developed that defined the coverage of the Emergency Planning Zone (EPZ). Wind speed and direction was monitored for a period of four months prior to the drilling activity which allowed the identification of high risks areas in the event of a gas release.

A dedicated wireless H₂S and sulfur dioxide (SO₂) gas detection system was installed including a general alarm system for public awareness in case of a public evacuation. Rovers were dispatched continuously to monitor remote areas of the EPZ. The safety solutions company conducted H₂S drills, man down simulations, and public evacuations in coordination with the operator and the local community. Prior to commencement of drilling activities, nearly 400 training certificates were released to personnel, contractors and sub-contractors.

This paper discusses lessons learned and best practices of emergency planning and management of the EPZ as critical elements of drilling operations. It highlights the continuous improvement of EPZ management methods and discusses the importance of engaging affected communities and residents to build confidence, partnerships and ultimately boost a company's public image. The paper also demonstrates the impact of corporate citizenship and responsible care practices beyond the immediate community.