About how to start my oil rig journey

Seeking advice: I'm a recent computer engineering graduate from india and I'm very interested in the oil and gas industry. I'd like to explore opportunities on an oil rig, specifically in roles that utilize my computer engineering skills. I'm keen on areas such as automation, data analysis, software development, and IT support/system maintenance(not that typical desk jobs but something offshore). If you have any insights or advice on how a fresher can enter this field, I would greatly appreciate your help.(I have applied in different companies and have done research and applied on different platforms, okay with relocating but still I have faced rejection or no response just submitted, in india there is ONGC but getting in is next to impossible as they are caste, referral, gate exam result and you need someone from inside that how to get in soo plz help)