The risks associated with introducing new technology need to be taken into account. An oil company may not think it's worth the risk to try untested technology

The risks associated with introducing new technology need to be taken into account. An oil company may not think it's worth the risk to try untested technology (or rather, try standard techniques on untested reservoir conditions). But the Iraqi engineer / regulator, who isn't bearing the costs of failed forays into new technology, may think its a good idea. So their incentives are different.