41836_Technology-Assessment.pdf

TECHNOLOGY ASSESSMENT FOR SUPERCEMENT FOR ANNULAR SEAL AND LONG-TERM INTEGRITY IN DEEP- HOT WELLS CONTRACT NO. DE-FC26-03NT41836 Prepared by Kevin Edgley Research Manager CSI Technologies, LLC 2202 Oil Center Court Houston, Texas 77073 Prepared for U.S. Department of Energy National Energy Technology Laboratory 3610 Collins Ferry Road Morgantown, WV 26507-0880 Introduction – Current State of Technology As the worldwide demand for energy continues to grow, the oil and gas industry continues to drill deeper wells in order to find and produce new assets. As shallow onshore and shallow-water offshore wells become depleted, the industry is forced to explore in more hostile environments to supply the world’s energy requirements. Deep wells have associated with them higher pressures and temperatures, which induce more stresses on the downhole equipment and materials, including the cement sheath.