EFD Systems Engineering Planning Model

One of the petroleum industry’s goals is to reduce the environmental impact of oil and gas operations in environmentally sensitive areas. To achieve this, a number of Environmentally Friendly Drilling (EFD) technologies have been developed to varying degrees but few have been integrated into a field demonstrable drilling system (i.e., combination of technologies) compatible with ecologically sensitive or off-limits areas.


The main purpose of the new model development is to create a decision-analytic technology selection process. The  method is based on a systems analysis that can be used for integrating current and new EFD technologies into an optimal EFD system. The system draws upon a large number of technologies (more than 100) identified by a government-industry joint venture studying low impact operations in sensitive ecological areas. In order to provide flexibility to the user, a small number of systems (1~5) are proposed for a given site, instead of a single best system. An optimization scheme is suggested based on a combination of multi-attribute utility theory and exhaustively enumerating all possible technology combinations to provide a quantitative rationale and suggest the best set of systems according to a set of criteria, with the relative importance of the different criteria defined by the decision-maker. This methodology is designed to help decision-makers select an optimal drilling system for a given site in order to minimize environmental impact and maximize profit at that specific site.


An application of the proposed approach is described  in a SPE paper by OK Youn Yu (SPE 120848) available from the Society of Petroleum Engineers. http://www.spe.org That paper describes  a case study performed for a well site in Green Lake at McFaddin, TX; some of the difficulties in using this approach in practice are also discussed. This paper describes the results of the case study which provided a more logical and comprehensive approach that maximized the economic and environmental goals of both the landowner and the oil company leaseholder.
The model can be accessed using these directions from OK Youn Yu.

There are four links for the applications as below:


  1. http://efd.civil.tamu.edu/da/  è Non-causal application
  2. http://efd.civil.tamu.edu/da1/  è Causal application
  3. http://efd.civil.tamu.edu/system/system.html  è Video tutorial (theory)
  4. http://efd.civil.tamu.edu/video/web.html  è Video tutorial (how to use the applications)


If you have any questions, just let me know.






Ok-Youn Yu, PhD, PE

Post-Doctoral Research Associate

Zachry Department of Civil Engineering

Texas A&M University

College Station, TX 77843-3136

979-458-4769 (Office)

http://efd.civil.tamu.edu (URL)


David Burnett,
Apr 8, 2010, 1:19 PM