Offshore Operation Facilities

2.3. Early Preparatory Work of Offshore Oil and Gas Drilling

Before we start offshore oil and gas drilling, we need to conduct a series of preparations, which mainly involve drilling design. This includes the design of platforms (ships) in place, wellbore structure, wellhead devices, casing, cementing, drilling fluid, drills, hydraulic parameters, drill assembly, and the design and control of wellbore trajectory. It also includes formation evaluation, BOP stack design, drilling program design, special operating procedures design, the schedule of the projects and materials planning, cost estimates, towing to the location of the drilling platform (ship), dropping anchor mooring, preparation work before spud, and so on. This section will introduce ...