The Research of Formation Characters and Bit Optimization of Basalt in Niudong Block of Malang Sag

Abstract:

The main lithology of the formation under Permian in Malang sag is basalt, with the characteristic of strong abrasive and low drillability the ROP (rate of penetration) is low. This paper based on drillability experiment of the core from oilfield, established rock drillability model, computed the drillability grade of cone bit and PDC bits, optimized the bit combined with the bit structural features, the result indicates that in the basalt formation under Permian with low ROP the ROP enhanced more than 50% using the recommended bit, the research improved ROP drastically, shorten the drilling cycle, which attained the aim of excellent and fast drilling, and has an important instruction meaning for bit optimization of basalt formation.

• Periodical: Advanced Materials Research (Volumes 455-456)
• Pages: 1578-1582
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.455-456.1578
• Online since: January 2012
• Authors: Hui Mei Wu, Yi Shan Lou, Zhong Hui Li, Liang Zhu, Yong Zhang
• Keywords: Basalt, Bit Optimization, Drillability, Malang Sag

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