Living in small, close-knit groups calls for a tolerant, gregarious disposition. You also need considerable stamina to cope with 12 hour shifts, seven days a week for the several weeks of a tour duty. Land crews usually work from dawn to dusk on tours averaging eight weeks on duty and four weeks off. On seismic vessels you could be working eight weeks on duty and eight weeks off duty. You must have the physical capabilities for remote, manual outdoor work.
Full mobility is also essential.
You should be prepared to regularly work long, antisocial hours in harsh work environments. You are likely to be working either as a land crew or on a seismic survey vessel offshore. Land crews might work in desert, swamp or jungle environments anywhere around the world. Marine crews must have the resilience to withstand long periods offshore with the possibility of bad weather conditions. The work is often remote and far flung so the ability to respect and adapt to different environments and cultures is necessary.