Determination of drillability
of some natural stones and their association with rock properties.
Protodyakonov, "Mechanical properties and drillability
of rocks," in Proceedings of the Fifth Symposium on Rock Mechanics, pp.
A sample listing of some popular accounting and ERP systems that include at least some levels of drillability
is shown below.
Based on the specifications in the Chang'e plan for experimental verification of the LRCB's ground functionality, marble of grade-VI drillability
is selected to simulate lunar rock.
This paper concentrates on ROP estimation using bit type and its properties, mud type and mud viscosity, formation parameters such as rock strength, formation drillability
, and formation abrasiveness, and some critical drilling equipment operational parameters such as pump pressure, WOB, and rotary speed based on the previous drilled wells data with the ELM and USA model.
Keywords: Sonic log, Uniaxial Compressive Strength, Schmidt Hardness, Drillability
, Bit Selection, IADC Table.
Deeper drilling in the crystallized rockformation has faced many challenges such as greater hardness , poor formation drillability
, elevated temperatures , higher pressures, and higher costs .
prediction-geological influences in hard rock drilling blast tunnelling, Earth and Environment Science, Geolische Rundschau 86(2): 426-438.
Advantages include dimensional stability an ultrasmooth surface, enhanced drillability
, high interconnect density and process capabilities.
and Rowlands, J.C.: 1987, Quantitative assessment of rock texture and correlation with drillability
and strength properties, R.