Well Intervention cost makes up a major part of the total operating expenditure in Shell EP Asia. The belief that well service operations are constrained to original well design and little could be done in the area of service optimization has made not a few to miss the opportunity of delivering operational excellence.

Service the Limit (STL) is an offspring of the Drilling the Limit* (DTL) methodology, widely applied by Shell Well Delivery teams. Until recently, this structured approach to value creation and realization existed only in drilling operations. STL is about replicating the DTL practices while servicing completed wells.

The DTL methodology and its application to drilling have previously been described in great detail; the intent of this paper is to highlight the experience of applying this methodology to well intervention planning and execution.

STL was introduced to Shell EP Asia (Malaysia and Brunei) in late 2003, with initial focus on training of champions and optimizing the execution phase of well service operations. This led to over 10% cost reduction. The quick-win encouraged a replication of the methodology in other parts of the region, with added focus on front-end activity loading, alignment to Shell EP Global Well Delivery Process and its integration with other hydrocarbon maturation processes.

It is recognized that irrespective of the versatility of a process, the primary activities, carried out by real people is what makes most of the difference in performance. STL is a systemic tool designed to support the people; it is an improvement to the isolated or once-in-a-while well intervention program optimization reviews. Uptake of this methodology will help the EP organizations to better face challenges ahead, especially in deepwater environments.

This paper will cover implementation of STL methodology, associated activities, results and future sustenance plan.

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