RESEARCH ON STRATUM 3-PRESSURE PROFILE AND ROCK DRILLABILITY IN IRAN AZADEGAN OILFIELD

Aimed at stratum characteristics of Azadegan Oilfield,Iran,using wireline logging data,the calculation model on stratum 3-pressure profile and rock drillability were established which based on precise logging data explanation,the section drawing of whole section 3-pressure profile and rock drillability profile were drawn,and well structure and PDC/TCI bit were optimized.The optimized results satisfied the requirement of safe drilling,solved the difficulties of slow ROP and long drilling period,and reduced the risk of foreign investment greatly.