Basic H2S Training in Kochi for Muscat-Based Oman Field and Plant Crews

Harweel and Yibal Khuff: where Oman's sour work is

Petroleum Development Oman found the Harweel field in 1997 and later discovered seven similar fields across about 1,000 square kilometres. An OGJ report on its enhanced oil recovery work estimated 1.8 billion barrels in place of light sour oil and retrograde condensate, with reservoirs three to five kilometres deep at pressures of 7,000 to 14,000 psi. The associated gas was reported to contain about 5 per cent H2S and 5 to 10 per cent CO2, which is why much of the equipment uses corrosion-resistant alloys. That report dates from 2007, so treat the numbers as a snapshot, not a current analysis.

The Rabab Harweel Integrated Project turned that into a plant. It combines sour miscible gas injection in several oil reservoirs with pressure maintenance of a gas-condensate field, and its scope includes sour gas processing, gathering and injection systems and export pipelines. Petrofac reported start-up on 18 July 2019, with gas from six sour wells arriving two months ahead of schedule. About 16 million standard cubic metres a day of high-pressure sour gas is injected, and condensate goes to the Main Oil Line via Marmul. An operator on that project works with sour gas, at pressure, every shift.

Yibal Khuff is the other landmark. The project is about 360 kilometres south-west of Muscat on a 1.68 square kilometre site, and production began in September 2021, with four sour wells opened and sour oil sent to the central processing facility. It makes about 235 tonnes of solid elemental sulphur a day and includes an acid gas absorber 48 metres tall and 291 tonnes in weight, fabricated in Oman. PDO's managing director cited more than 46 million lost-time-injury-free man-hours, with about 1,200 Omanis on site, 200 of them qualified welders. For a welder, a pipefitter or a scaffolder, that is a long list of sites where a sour-gas induction is the first thing asked.

We have not found a public PDO specification that sets out an H2S training rule, so we do not claim one. Requirements sit in your contract and site induction. Ask your PDO contract holder what applies to your role and whether a certificate from a course outside Oman is accepted.

Is the half-day H2S course the right one for your Oman job?

Check three things before you book: whether your site's induction names H2S training, whether your current certificate falls inside the two years OPITO allows, and whether your contractor accepts a certificate gained outside Oman. OPITO's standard describes Basic H2S for people in an environment that could become contaminated by the gas, with no prerequisites except a medical screening form before the practical exercises. If you supervise work permits at the same site, the Permit to Work course is the natural pairing; if you drive long routes or work alone, Basic First Aid adds the skills for a remote casualty. If you may also work on a vessel or platform, T-BOSIET is the offshore side.