This course introduces the subject of drilling, completion and well workover operations, looking to build a solid foundation level knowledge of the practices, people and equipment used in these key operations. As no prior knowledge is assumed for this course, each concept is introduced in simple terms and then built upon to allow a comprehensive overview each of the three disciplines to be developed. The course is firmly rooted in ensuring that well integrity is maintained whilst working in each of these independent disciplines and the processes and technology that is discussed. How drilling, completion and workover fits into the life cycle of exploration, appraisal, development and eventual abandonment of an oilfield is discussed; as are the requirements for eventual well abandonment.
Course Level: Foundation Instructor: Kevin Gray
Designed for you, if you are...
New to the drilling industry or looking for an understanding of the industry before you join
A geoscientist or reservoir engineer looking to get better value from your interactions with the other disciplines
Someone who has a financial or logistics role associated with the upstream sector of the oil & gas industry
Working for a supplier to the upstream sector of the oil & gas industry
How we build your confidence
Practical demonstrations of all the key principles using models and simulations in the classroom
Mixed, instructor-led delivery of theoretical content with blend of PowerPoint overview, whiteboard explanations of detail and class interactive exercises
A narrative that runs through the course where each topic is inter-related and built on the previous learnings
Extensive allowance for class-led questioning within the course delivery
For in-house courses a half day drilling rig visit may form part of the learning process.
The benefits from attending
By the end of the course you will feel confident in your understanding of:
How to communicate easily with people involved in each discipline and to understand the acronyms and jargon that they use in everyday operations
How your role or your service fits into each process
A high level overview each upstream process
The equipment used during the drilling process and its sequence of use
How wells are kept safe, and how we protect people and the environment whilst drilling
The drilling team: Who does what in the planning, mobilisation and drilling of a well?
The equipment used to drill a well, the rotary drilling rig itself and the specialist tools that are needed to steer the well, survey its position and inform us of the rocks that have been drilled
Directional drilling and well design, extended reach, high angle and multilateral drilling techniques
The drill string design for drilling and initial testing of the well
Geology, the actual rock itself as well as the pore pressure and fracture gradient, what these are and how they affect the most fundamental aspects of how we design and drill and complete a well
Electric line logging, formation evaluation while drilling (LWD) as well as surface mudlogging and coring as methods of understanding the geology
The drilling fluid, also known as mud, what this specialised highly engineered liquid does in the well and how we choose the properties it needs to be effective. How drilling fluids differ from completion and workover fluids and brines.
How we keep the reservoir oil and gas (as well as other fluids/gasses) in the rock while we drill, complete and workover the well, but how we release them when we want to produce them
Tubing, packers and completion equipment and the options for design and installation of this equipment
Wellheads, design and configuration for production and workover
Importance of overall well integrity from a design, installation and operational viewpoint
Overview of stimulation techniques and workover options including introduction to coiled tubing technology for Through Tubing Rotary Drilling as well as faster more efficient workovers