This topic provides a non-technical but comprehensive overview of drilling and completion processes, procedures, equipment and workflows. Starting with the main objectives of well construction projects, it defines the roles and responsibilities of operating company and contract personnel, the workflows involved in each phase of well construction and the surface and subsurface challenges that must be addressed during each phase.
Each of the main rig systems are described, along with the major rig types used in onshore and offshore drilling, the drill string components and drill bits, and the all-important role of the drilling fluid in ensuring that a well safely reaches its target. With these basic elements described, the different phases of well construction are then examined: the initial planning stages, the design of the well, and the development and execution of the drilling program, including a typical sequence of drilling operations and an overview of the special considerations involved in offshore drilling.
The topic emphasizes the importance of considering well completion objectives and design parameters even in the earliest stages of well planning, and provides an overview of completion types and well stimulation methods.