Drilling Manual | Subsea Well Drilling In Oil & Gas

One of the remarkable accomplishments of the petroleum industry has been the development of technology that allows for drilling wells offshore to access additional energy resources (subsea drilling). The basic offshore or subsea wellbore construction process is not significantly different than the rotary drilling process used for land based drilling. The main differences are the type drilling rig and modified methods used to carry out the subsea drilling operations in a more complex situation.