1991 saw the implementation of a new approach to well construction in the U K sector of the North Sea with Well Engineering in the Nineties (WIN 90s). With this new approach the responsibility for drilling is devolved to drilling contractors, allowing the operator to concentrate on core business. This has provided the opportunity to streamline the drilling process through integration and improved supply chain management. The use of teams is building close customer – supplier relationships throughout the supply chain, and developing a common purpose focused on the needs of the operator.

After 18 months of WIN 90s operations, there are clear signs of benefits to the operator, the drilling contractor and the drilling service contractors. This paper discusses the results achieved so far in the development of new relationships, the reorganisation due to the shift of responsibility to the drilling contractor and the implementation of quality management. The results of the initiative are measured in terms of safety, drilling performance and productivity. The paper also discusses the work required to take WIN 90s to the next stage, and the opportunities available for further improvements.

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