Posted onOctober 9, 2017

Denver, Colorado, USA

Drilling Hard and Abrasive Rock Efficiently or Generating Quality Cuttings? You No Longer Have To Choose

Publisher: Society of Petroleum Engineers
Document ID: 116554-MS
Content Type: Conference Paper
Language: English
DOI: 10.2118/116554-MS
Authors: S├ębastian Desmette, SPE, Benoit Deschamps, SPE, and Ron Birch, SPE, Diamant Drilling Services, and Matthieu Naegel, SPE, and Philippe Essel, SPE, Total
Source: SPE Annual Technical Conference and Exhibition, 21-24 September 2008, Denver, Colorado, USA
ISBN: 978-1-55563-147-5
Copyright: 2008. Society of Petroleum Engineers
Disciplines: 1.2.1 Bit Selection, Performance 1.4.3 Downhole Operations (Casing, Cementing, Coring, Geosteering, Fishing) 1.2.2 Drillstring Design 1.1.4 Real-Time Data Transmission, Decision-Making 6.1.1 Exploration, Development, Structural Geology
Pages: 20

The drilling of hard formations usually requires specific drilling systems to achieve an efficient rate of penetration. Due to the limited depth of cut, the solution often involves the use of high RPM drive systems such as turbines or high speed motors and a fixed cutter product is usually the drill bit of choice.

With increasing well depth the roller cone option is normally avoided due to the low penetration rates and limited rotating hours obtainable with these drill bits. Roller cone use invariably leads to multiple trips and a significant increase in the time and cost of the drilling operation, especially for deeply buried reservoirs where hard rocks are generally encountered and bit diameter is reduced at TD.

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