1. SPE 170393 Addressing Safety Challenges of Operating in Sour Gas Fields: A Case Study from the Middle East Anthony Onerhime, Schlumberger, Andy Kveps and Elie Daher, United Safety

2. Slide 2 The Challenge of Sour Gas Slide 2 Prevent exposure by implementing: Mechanical and procedural measures Early warning detection and notification systems Breathing protection measures for personnel in the event of a release Hydrogen sulfide attacks the respiratory and central nervous systems of the victim, resulting in death at about 1000 ppm. Oil and gas projects in the Middle East can encounter H 2 S up to 400,000 ppm.

3. Slide 3 SPE 170393 Addressing Safety Challenges of Operating in Sour Gas Fields: A Case Study from the Middle East Mike Gilbert & Anthony Onerhime 1 Anticipate, identify, and evaluate hazardous conditions and practices. 2 Develop hazard control designs, methods, procedures, and programs. 3 Implement, administer, and advise others on hazard controls and hazard control programs. 4 Measure, audit,and evaluate the effectiveness of hazard controls and hazard control programs. ANSI Z10-2012 Recommendation

4. Slide 4 Safety Gap SPE 170393 Addressing Safety Challenges of Operating in Sour Gas Fields: A Case Study from the Middle East Mike Gilbert & Anthony Onerhime

5. Slide 5 Closing Gaps Through Innovation SPE 170393 Addressing Safety Challenges of Operating in Sour Gas Fields: A Case Study from the Middle East Mike Gilbert & Anthony Onerhime Gap Marketplace Seek expertise Innovate Apply

6. Slide 6 SPE 170393 Addressing Safety Challenges of Operating in Sour Gas Fields: A Case Study from the Middle East Mike Gilbert Slide 6 Solution: Gas Detection and Alarm Gas Detection System Respiratory Protection system Evacuation Gas detection and alarm system including dashboard panel Integrated internal and external toxic gas detection External audio and visual alarm Touch Screen Passenger Interface Onscreen vital information Display of gas levels and alarms Records of alarms and events

7. Slide 7 SPE 170393 Addressing Safety Challenges of Operating in Sour Gas Fields: A Case Study from the Middle East Mike Gilbert Slide 7 Gas Detection System Respiratory Protection System Evacuation Onboard Respiratory Protection System compliant with NIOSH air flow specifications. Photos Courtesy of United Safety Solution: Onboard Respiratory Protection System Air for five people for one hour Compact lightweight footprint for minimal storage space Rapid deployment air mask Optional air line configuration

8. Slide 8 SPE 170393 Addressing Safety Challenges of Operating in Sour Gas Fields: A Case Study from the Middle East Mike Gilbert Slide 8 Gas Detection System Respiratory Protection system Evacuation Solution: Air Supply Module Protects occupants while allowing visibility and mobility Safe work procedure and training developed to ensure proper use Continuous status of air supply and gas

9. Slide 9 Gas Detection System Respiratory Protection System Evacuation Vehicle Gas Protection System Athira to insert Air Qruise pic from User Manual with label of features

10. Slide 10 SPE 170393 Addressing Safety Challenges of Operating in Sour Gas Fields: A Case Study from the Middle East Mike Gilbert & Anthony Onerhime Slide 10 Deployment 20 VGPS deployed (in field or production) Adapted to other environments Prototypes prepared for innovative applications

11. Slide 11 SPE 170393 Addressing Safety Challenges of Operating in Sour Gas Fields: A Case Study from the Middle East Mike Gilbert & Anthony Onerhime Slide 11 Conclusion Successful innovation and gap closure through collaboration Solution initially deployed in two-crew transportation vehicles in the field, with another 20 in production Increased worker confidence Field test-proven robust system for the unique challenges of the Middle East oilfield Investigating development in other areas of application.

12. Works Cited Slide 12 Agency for Toxic Substances and Disease Registry (ADTSR). 2012. Hydrogen Sulfide (H2S) CAS 7783-0604; UN 1053. http://www.atsdr.cdc.gov/MHMI/mmg114.pdf (downloaded 5 July 2014). Alberta Energy Regulator (AER). 2014. Safety and Sour Gas. http://www.aer.ca/rules-and-regulations/by-topic/public-safety-and-sour-gashttp://www.aer.ca/rules-and-regulations/by-topic/public-safety-and-sour-gas (downloaded 10 July 2014). American Petroleum Institute (API). 1995. Recommended Practice 55 for Oil and Gas Producing and Gas Processing Plant Operations Involving Hydrogen Sulfide. http://www.techstreet.com/products/25561#jumps (downloaded 28 May 2014).http://www.techstreet.com/products/25561#jumps American Society of Safety Engineers (ASSE). 2012. ANSI/AIHA/ASSE Z10-2012 American National Standard for Occupational Health & Safety Management Systems. http://www.asse.org/shoponline/products/Z10_2012.php(downloaded 28 May 2014). Beauchamp R.O. Jr., Bus, J.S., Popp, J.A., Boreiko, C.J. and Andjelkovich, D.A. 1984. A critical review of the literature on hydrogen sulfide toxicity. Critical Reviews in Toxicology, 13:25–97. http://www.ncbi.nlm.nih.gov/pubmed/6378532 (downloaded 5 July 2014). Canadian Centre for Energy Information, 2004. Evolution of Canada’s Oil and Gas Industry. http://www.centreforenergy.com/documents/403.pdf (downloaded 5 July 2014). Engineering Resource. 2007. Sour gas—a history of expertise. http://engineering-resource.com/Files/sour-gas_2007.pdf_brhttp://engineering-resource.com/Files/sour-gas_2007.pdf_br (downloaded July 6, 2014). Guidotti, T.L. 1996. Hydrogen Sulphide. In Occup. Med. Vol. 46, No. 5. 367–371. http://occmed.oxfordjournals.org/content/46/5/367.full.pdfhttp://occmed.oxfordjournals.org/content/46/5/367.full.pdf (downloaded 18 July 2014).

13. Acknowledgements / Thank You / Questions Mike Gilbert Vice President, Middle East/ Asia United Safety International Quality & Innovative Safety Solutions P.O. Box 500582 Office Park Building, 3 rd Floor Block A, Dubai Media City, UAE T: +971 4 369 5075 C: +971 55 898 0543 GilbertM@unitedsafety.net Anthony Onerhime UAE QHSE Manager Schlumberger Technical Services, Inc. Al Masood Tower, 16th Floor P.O.Box 21, Abu Dhabi United Arab Emirates Main Telephone: +971 2 633 3600 Main Fax: +971 2 634 9415 Direct: +971 2 610 1224 Mobile: +971 566 879 101 oonerhime@slb.com Slide 13