HDD Design



Detailed HDD Design


Detailed HDD Design

Designing an HDD project requires an experienced assessment of many key factors:

  • Entry / exit angles, arc radius, and required depth of cover
  • Integration of geotechnical information, drilling and pipe design
  • Pull force, bending and tensile stresses applied to the product pipe
  • Conservative design parameters to accommodate potential anomalies
  • Safe Drilling and hole opening operational practices
  • Suitability of layout area, pipeline tie-ins, and other construction site conditions
  • Suitability of pulling and lifting plans for final pipe installation

Entec's HDD Design services include a wide variety of specialized programs:



Hydro Fracture Mitigation & Response Programs


Hydro Fracture Mitigation & Response Programs
  • Drill path design incorporating suitable depth of cover
  • Surface casing installation plan ensuring competent seal
  • Drilling fluid pressure analysis, monitoring and management plan
  • Drilling fluid design
  • Lost circulation Response planning

Pressure Monitoring & Management Programs


High Elevation Differential Drilling
  • Annular pressure modeling based on borehole geometry and flow characteristics
  • Continuous annular pressure monitoring while drilling
  • Hydro-fracture prevention during the drilling and reaming processes

High Elevation Differential Drilling Programs


High Elevation Differencial Drilling Programs
  • Hydrodynamic Fluid Analysis
  • Hole Cleaning Analysis
  • Torque and Drag – Drill Pipe Buckling Analysis
  • Frac-Out Mitigation Analysis
  • Water In-Flow Control Analysis

Intersect Drilling Programs


Intersect Drilling Programs
  • Intersect Path Geometry
  • Intersect Guidance Systems
  • Torque and Drag – Drill Pipe Buckling Analysis
  • Fluid Control Analysis
  • Frac-Out Mitigation Analysis
  • Hole Cleaning Analysis