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After feasibility has been confirmed and a base field development plan outlined, the conceptual engineering phase can start. The purpose of the conceptual engineering phase is to establish an optimum solution to take forward to the Front End Engineering and Design (FEED) phase. Conceptual engineering is divided into concept development and concept selection. Concept development involves developing ideas, options and alternatives - with the objective of ensuring that all options/opportunities have been identified and developed. Concept selection involves studying, screening and re-analyzing options until it can be justified and demonstrated which of the concepts should be selected.
The challenge during the conceptual engineering phase is the large number of conflicting issues which impact on the attractiveness of an option. Thus, there is a great need for vigorous optimization during conceptual engineering.
Integrated Optimization Framework
EPCONSULT is expert in Conceptual Engineering Studies and we have developed an in-house tool for the conceptual engineering phase named Integrated Optimization Framework (IOF). IOF was developed with the objective of making the conceptual engineering phase simpler and more focused. At the end of a concepts study, the IOF provides an audit trail that demonstrates and justifies the concepts that were screened out and the concept that was selected.
The IOF involves the following study features:
During the IOF process our highly skilled teams of engineers and consultants will make use of workshops, work-sessions and desktop analysis.
A conceptual engineering study that makes use of our IOF approach takes the following form in an iterative approach:
A good example of a conceptual engineering study is the integration of an offshore satellite field into an existing hub.
We would consider a large variety of features of the new satellite field, including anticipated reserves in place and fluid properties. Subsequently different conceptual solutions could be analyzed, e.g. standalone platform with processing only, processing and quarters, processing and quarters and drilling, unmanned, etc, with infield pipelines to the hub or to an adjacent export pipeline. Alternatively, an all-subsea development concept could be considered, with subsea tie-back to an existing export pipeline or the existing hub, considering a number of solutions such as injection/controls umbilical, pipe-in-pipe, bundles etc., and defining required additional processing facilities/capacity on the existing platform.
Please contact us for a discussion of how we may be able to help you with any aspect of your conceptual engineering activities.
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