Advances in Well Engineering Design

Drilling and Completions Projects, Facilities, and Construction Production and Operations


A considerable evolution in well engineering has taken place in Norway since the 1970’s. Offshore platforms  demand long reach wells. The demand for longer, deeper and wells with high inclination required improvement in many technical areas. This course will review some of this evolution with the focus on methodology and underground  knowledge.

Bouyancy of well tubulars is very fundamental. There has been some confusion over the years, so a review  as related to drilling and well intervention will be given resulting in a simple generalized law of Archimedes that covers virtually all applications. Further, a review of geomechanics issues relating to wellbore stability will be presented, with a generalized frac model that covers both shallow and deep waters. Lost circulation issues will be discussed showing the present understanding of mud design.

A universal fully 3-dimensional  model for tubulars will be presented. Models for multi-string design will be given that covers both the installation phase but also the production phases where thermal strains gives loads to the casing and production tubulars. Other effects includes B-annulus thermally induced pressures and tubular loads on water and gas injectors (WAG).

A recent 3-dimensional model for well friction (torque and drag) will be presented. Many applications of this model will be presented such as long horizontal wells, catenary well paths, rotating liners and drilling with motors. Mechanistic models and procedures to handle stuck pipe will be presented as a natural extension of the friction models.

Completion has evolved to a major part of the well budget. On the completions side a discussion on improved reservoir drainage using inflow control devices  will be presented. Thermal effects will be discussed and also conversion of production wells to injectors.

One result of the evolution of well engineering is the development of well integrity standards. At the end of the course a discussion of how earlier well failures played an important role in the evolution of well integrity systems.

Examples from the Norwegian oil fields will be presented  for  the subjects presented above and other elements of well engineering.

Learning Level


Course Length

1 Day

Why Attend?

Some of the practical solutions given in the course come from many years experience in the North Sea, and are not published elsewhere.

Each participant will receive a copy of the book Modern Well Design: Second Edition by Bernt S. Aadnoy.

Who Should Attend

This course is for drilling and production engineers, drilling supervisors, exploration geologists, and others who work on oil and gas wells.


1.6 CEUs (Continuing Education Units) will be awarded for this 1-day course.


Bernt S. Aadnoy is a professor of drilling engineering at Stavanger University in Norway and an expert advisor for Rogaland Research and the Norwegian Petroleum Authorities. Aadnoy began his professional career at Phillips Petroleum in Odessa, Texas in 1978 and later worked for Statoil and Saga Petroleum.

Most of his current work relates to drilling and completion. He has written more than 100 technical papers, several books, and holds a number of patents. His numerous honors include the 1999 SPE International Drilling Engineering Award.

Aadnoy holds BS and MS degrees in mechanical, control, and petroleum engineering from the University of Wyoming and the University of Texas. He holds a PhD in petroleum rock mechanics from the Norwegian Institute of Technology.