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Drilling & Completing of the wells faster, safer and at lower costs has always been the primary target for the operating companies worldwide. While it has been achieved by several means through Technology, Innovation, Operational Optimization, Cost Reduction Techniques, Application of Best Practices etc; the operating company still has to deal with multiple contractors, vendors, suppliers and service providers, with each of them having different drivers for success that may or may not align with the primary goal. The concept of Integrated Operations / Services brings in this required polarization of drivers for success to deliver the projects under budgeted AFE & planned times. In one of such Integrated Drilling Operations Campaign, at an Artificial Island located in Offshore United Arab Emirates, with single focal point for various drilling well services, the learning curve of the project has been very steep with numerous optimization measures taken at the early phase of the project under the continuous improvement process to enhance the drilling efficiency in order to speed up the well delivery. The step change achieved in the drilling efficiency for delivering the 16″ section will be detailed in this paper. The same concept has been applied in other sections with similar success. The drilling optimization has never been so thorough and need of the hour with the current prolonged challenging market conditions. This paper revisits the drilling optimization by integrating all the associated well drilling services to improve and pursue higher drilling efficiencies. It details in steps, starting with identifying the opportunities of improvement, how the traditional methods & practices were challenged and the revised practices were adopted in design & operational execution to better the performance and deliver the section faster consistently with every well. The drilling performance of this section after integrated drilling optimization currently holds several records (best footage/day, best footage/24 hours, best onbottom ROP, best average ROP including connections, best connection times, days/1000 ft, faster casing running speeds) in the subject field and also stands out when compared to the other nearby offshore fields in the country. These drilling performance records are combined with good hole quality which have contributed to delivering the fastest 16″ section when one includes casing running and other flat time activities. With the planned changes alongside the detailed engineering planning & constantly monitored execution, the section has been delivered well after well with improved times. Overall, the drilling phase of this section has been delivered 3 days earlier than the offset wells and contributing to potential savings of up to 18 million USD to the project drilling campaign cost. |
