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DE26-98FT34174.000 Development of New Drilling Fluids FINAL REPORT Date: May 5, 2003 Title: Development of New Types of Non-Damaging Drill-in and Completion Fluids Project Number: 26-98FT34174.000 From: David B. Burnett, Harold Vance Department of Petroleum Engineering, Texas A&M University Goals and Objectives of Project The goal of the project has been to develop new types of drill-in fluids (DIFs) and completion fluids (CFs) for use in natural gas reservoirs. Phase 1 of the project was a 24- month study to develop the concept of advanced type of fluids usable in well completions. Phase 1 tested this concept and created a kinetic mathematical model to accurately track the fluid’s behavior under downhole conditions. Phase 2 includes tests of the new materials and practices. Work includes the preparation of new materials and the deployment of the new fluids and new practices to the field. This is the final report on a program that has been operating for 7 years, including the last four years under the sponsorship of the U.S. DOE.