Fully automatic rock drillability tester

Drilling system:
Electric control drill bit (standard size hard alloy/diamond drill bit).
High precision servo motor (controls speed and drilling pressure, typically ranging from 0 to 1000 rpm, 0 to 10 kN).

Rock sample fixture: a hydraulic or mechanical clamping device that ensures the stability of the rock sample.

Sensor module:
Torque sensor: Real time monitoring of drilling resistance.
Displacement sensor: records drilling depth (accuracy 0.01 mm).
Vibration/acoustic emission sensor (optional): Analyze rock fragmentation characteristics.

Control system: PLC or industrial computer, pre-set test program and automatically adjust parameters.

Data analysis software: automatically generates drillability curves, calculates indices, and exports reports.

Testing Principles

Micro drilling speed method: Measure the drilling depth (mm/min) per unit time under standard drilling pressure and rotation speed, and convert it into drillability level value.
Energy method: Evaluate rock fragmentation energy consumption by drilling power consumption (torque x speed).

Application scenarios

Oil and gas industry: optimizing drilling parameters (such as drill bit selection, speed design).
Mining engineering: Evaluate rock drillability before blasting to reduce mining costs.
Research institutions: study new drill bit materials or rock drilling tool interaction mechanisms.

Compliant with standards

API RP 10B (Extended Application of Drilling Fluid Testing Specification for Petroleum Industry).
ISO 22476-12 (Standard for Geotechnical Engineering Investigation).