Результати використання нових конструкцій породоруйнівних інструментів різальної дії при відборі керна в похилоспрямованих і горизонтальних свердловинах

Abstract

The article is devoted to development of PDC core bits for drilling of inclined and horizontal wells. Analytical researches and field tests indicate a necessity of new PDC bit designs for over-all economics improvement of drilling inclined and horizontal wells with a downhole motor application. Development of the fixed cutter bit designs with low energy consumption is necessary. Four PDC core bit designs with low energy consumption for drilling by downhole motors of inclined and horizontal wells were successfully tested and introduced.