"REPORTER of the Association of Drilling Contractors" N 3, 2013

ASSESSMENT OF DRILLING PERFORMANCE IN INTERSTRATIFIED SECTIONS
Kamatov, Kamal A. – postgraduate student, the State Gubkin University of Oil and Gas, kamatovkamal@gmail.com
Podgornov, Valery M. – Dr.Tech.Sci., professor, the State Gubkin University of Oil and Gas, vpodgornov@bk.ru


Key words: interstratified section, rocks of varying hardness, PDC bits, drilling performance.
The paper presents a method to assess drilling performance in interstratified sections, aimed to ensure full utilization of mechanical energy applied to the bottomhole for rock destruction. A comprehensive interpretation of logging data was performed to assess the lithological section and hardness of rocks. The authors present an algorithm for logging data processing, which allows to obtain approximate values of bottomhole parameters while drilling with a standard positive displacement motor assembly. It was possible to calculate specific mechanical energy applied to the bottomhole; it was established that it exceeds rock hardness many-fold. The result is that drilling performance is contingent on rock interstratification index in the subject geological section, while using PDC and roller cutter bits.

 




 

The year 2020 number 2nd issue of the quarterly journal, "Bulletin of the Association of Drilling Contractors", is now available "Bulletin of the Association of Drilling Contractors"

ISSN 2073-9877

The scientific and technical journal, “Bulletin of the Association of Drilling Contractors”, is listed by the Higher Attestation Commission of the RF Ministry of Education and Science as one of the leading refereed journals and publications that feature main scientific results of doctoral and candidate’s dissertations.

Арктическая

Uranus

Ocean Endeavor

NAN HAI JIO HAO

JUPITER

HAKURYU-5

ППБУ "SCARABEO 9"

ООО «Шатскморнефтегаз», Saipem Drilling

Deep Venture

ППБУ «WEST ALPHA»
(«Эксон Мобил Раша Инк.»)