Description
Table of Contents
Chapter 1
Geothermal Energy Overview
Overview, Concepts and Definitions
Energy Classification
Energy Measurement
Chapter 2
Pre-Spud Activities
Location Preparation
Rig Acceptance
DWOP/CWOP
Relief Well Planning
Contingency Planning
Well Control Training and Procedures
Evacuation Plan
Waste Management Strategy and Plan
Pre-Spud Meeting
Optimum Drilling Program Essentials
Program Preparation
Drilling Engineer Responsibilities for
Geothermal Drilling
Chapter 3
Drilling Rig: A Major Factor
in Geothermal Drilling
Introduction
Rig Selection
Rig Types
Rig Power Generation
Chapter 4
Well Design for Geothermal
Wells
Lean Profile
Hole Opening
Hydraulics
Chapter 5
Geothermal Drilling Hazards
Major Geothermal Drilling Hazards
Kick and Blow-out from Geothermal
Reserves
Geothermal Well Control Considerations
Chapter 6
Casing Design Considerations
for Geothermal Wells
Challenges on Geothermal Well Casings
Chapter 7
Heat Transport and Wellbore
Thermal Simulation
Model Formulation
Heat Transfer Correlations
Annular Fluid Expansion (Annular Pressure)
Buildup)
APB Data Analysis
Chapter 8
Geothermal Well Operating
Limit
Well Integrity
Cement Integrity
Pipe and Connection Integrity
Wellhead Integrity
Wellhead Movement
Fatigue (cyclical loading)
Packer Integrity
Annulus Pressure Management
Internal and External Corrosion
Erosion-Corrosion Model
Geothermal Well Operating Limit
Chapter 9
Geothermal Downhole Tools
Rotary Drill Bits
Hole-enlarging tools
Downhole Percussion Hammers
Positive Displacement Motors (PDM)
Downhole Turbines
Thrusters
Drilling Jars
Telemetry System
Rotary Steerable Tools
Compact High-Pressure Jet Drill
Hydraulic Pulse Drilling Tool
Chapter 10
Drilling Problems and Geothermal
Well Construction: Operational
Consideration
Pipe Sticking
Lost Circulation
Drill Pipe Failures
Borehole Instability
Producing Formation Damage
Hole Cleaning
Drilling Across a Fault
Pulling out of the Hole
In-flow Testing, Flow Checks, and Float
Checks
Drill Pipe
Bottom Hole Assembly (BHA) Tools
Limitation
Use of Mud Coolers
Fluids and Cement Consideration
Cement Considerations for Geothermal
Wells
Health, Safety, and Environmental Risk
Chapter 11
Managed Pressure Drilling
(MPD) in the Geothermal
Environment
Heat Flow
Chapter 12
Geothermal Systems
Geothermal Energy Generation
Geothermal District Heating and Cooling
Heat Pump
Enhanced Geothermal System (EGS)
Chapter 13:
Cost and Risk Analysis
Well-planned considerations
Cost Estimation
Bowtie Concept
