REI Drilling, Inc. (REI)
REI Drilling, Inc. (“REI”) provides specialized contract directional drilling services for both
surface and underground mining operations. For over 45 years, REI has partnered with
coal mine operators across the United States and internationally, delivering engineered
directional drilling solutions with a strong emphasis on safety, efficiency, and
innovation.

Coal Mining Services Include:

• Geological Exploration: Directionally drilled horizontal boreholes with Geosensing to define coal thickness, and characterize post-depositional channeling or intrusions, and faulting. Services include spot coring, geophysical and geomechanical logging,gas and water production logging, and real-time geological interpretation.
  
• Methane Drainage & Gas Control: In-seam degasification boreholes (from surface or underground), horizontal GOB boreholes, vertical well intercepts, and turnkey
  underground gas gathering system design and installation.
• Water Transfer & Drainage: Directional boreholes of varying diameter to connect or dewater adjacent mine pools, allowing centralized water control and discharge while reducing treatment and permitting requirements. Includes sump-to-sump drainage systems with lateral manifolds for depressurization.
• Abandoned Mine Verification (AMV): Provides safe mining barriers near old works while maximizing coal recovery.
• Destressing: Pre-mining treatments using inert gas pressure fracturing of
  directionally drilled boreholes to reduce material strength and improve mining
  efficiency.
• Utilities & Instrumentation: Directional boreholes for installation of pipelines,
  power, water transfer lines, rock dusting systems, and monitoring equipment.