| Popis: |
Escalating development costs and increasing deepwater activity emphasize the need for reducing well completion costs dramatically. The evolution of single trip systems in the Gulf of Mexico Shelf provides proven technology to complete marginal properties in deepwater. Workstring trips on deepwater completions are the single most expensive operation; therefore minimizing trips can significantly reduce operational costs. Today, wells are being drilled deeper and therefore the impact of reducing the number of trips is significant. Single trip systems executed successfully in today's deeper environments can offer considerable savings. Realized project savings depends on the type infrastructure in place, i.e. Semi-Submersible, Drillship, Spar, TLP. Single Trip systems offer a viable option to reduce costs, however candidate selection and additional engineering considerations are associated with these systems. The progression of single trip systems to multi zone completions systems is examined along with the inherent advantages they present. Based on the completion architecture and rig infrastructure in place tangible savings in excess of half a million dollars can be realized. Installation of single trip systems, a deepwater completion performed from a drill ship, and the cost analysis for the feasibility of this application is presented. |
