Systematic Approach Enhances Drilling Optimization and PDCBit Performance in NorthSlopeERDProgram

摘要

Technological advancements have enhanced operational efficiency in North Slope directional and horizontal drilling applications. These gains result fromresolution of technical andrneconomic issues that once seemed insurmountable in extended reach drilling programs. Well profiles have become more challenging because of our need to reach targets, depths andrndepartures that previously seemedunrealistic. Regardless of our current levels of success, thereistheurgencytodevelopmethods and processes that will further improve drilling efficiency. As such, it is imperative that a systematic, logical and quantifiable approach for developing and implementing technologies in these types of applications, especially Extended Reach Drillingrn(ERD) programsbedefined. This paper will show how this approach was used tornenhance drilling efficiency in the intermediate section (12-1/4" hole size) of a North Slope ERD program. It defines and quantifies two sets of parameters for the drilling operation:rnand on a "per interval" basis. It evaluates the functional relationships and dependenciesrnamong the drilling operation's components. Although effective in directional, horizontal and ERD applications, the method promotes continuous improvement and makes it useful in anyrndrillingenvironment.