Using a laboratory drilling setup, values of these indices were calculated for six different carbonate rocks in more than 20 different operational conditions.

Experiments showed that Unconfined Compressive Strength (UCS) is not applicable for characterizing the drillability, while Drilling Rate Index (DRI) leads to ...

Drillability, specific energy, resistance to drilling alteration index and several other indices have been proposed to estimate the rock capability to fail ...

Experimental evaluation of hardness models by drillability tests for carbonate rocks · Journal of Petroleum Science and Engineering 113: 104-108 · 2014 · Related ...

Afshari Moein, M. ; Shaabani, E. ; Rezaeian, M. (2014) Experimental evaluation of hardness models by drillability tests for carbonate rocks.

In this study we measure the drillability of several carbonate rocks and evaluate them with ROP experiments. Using a laboratory drilling setup, ROP was measured ...

This study selected rock samples from different depths in the area for indoor drilling resistance analysis testing.

Mohammad Javad et. al [9]have experimentally evaluated hardness models by drillability tests for carbonate rocks for 53.9 mm diameter rotary drills. Though ...

May 27, 2022 · This paper aims to discuss the recent development in rock hardness testing methods and their applications in rock engineering and geological ...

The purpose of this paper is to provide a proper, practical and convenient drilling rate index (DRI) prediction model based on rock material properties.