Topic outline

  • Geosteering: Fundamentals, Planning, and Implementation

    This course provides an overview of all significant aspects and considerations of geosteering for reservoir engineers, drilling engineers, log analysts, geologists and other technical staff
    • Training Methodology & Objectives

      Training Methodology

      This Trainee-centered course includes the following training methodologies:-

      • Talking presentation Slides (PPT with audio)
      • Simulation & Animation
      • Exercises
      • Videos
      • Case Studies
      • Gamification (learning through games)
      • Quizzes, Pre-test & Post-test

      Course Objectives

      After completing the course, the employee will:-

      Apply and gain an in-depth knowledge on the fundamentals, planning and implementation of geosteering Explain strategy and methodology as well as identify horizontal and deviated well geosteering
      Discuss basic concepts, application, essential elements of reservoir geology and structural features Recognize steering systems, BHA steering tendencies and BHA orientation and tool face
      Employ MWD directional surveys, survey calculation methods, survey spacing, static and instantaneous surveys Discuss the ellipsoid of uncertainty, collision avoidance, structural uncertainty, geological and drilling targets
      Determine dog leg severity DLS limitations, Build rate, BHA tool building capabilities, Steering modes and steering ratios Plan well trajectory and identify sidetracks and obstacles avoidance trajectories
      Interpret Image patterns and review deep directional electromagnetic measurements (remote boundary detection) Differentiate proactive and reactive geosteering as well as describe cross sections displays (distortions and projections)
      Discuss geosteering principles, bed dip, bed thickness and incident angle calculations Apply well landing strategy and geosteering using true stratigraphic thickness
      recognize drop rate and inclination changes and perform horizontal trajectory management
      • Course Description

        This E-Learning course is designed to provide participants with a detailed and up-to-date overview of the fundamentals, planning and implementation of geosteering. It covers the strategy and methodology, horizontal and deviated well geosteering; the basic concepts, application, essential elements of reservoir geology and structural features; the steering systems, BHA steering tendencies and BHA orientation and tool face; the MWD directional surveys, survey calculation methods, survey spacing, static and instantaneous surveys; and the ellipsoid of uncertainty, collision avoidance, structural uncertainty, geological and drilling targets
        During this course, participants will learn the dog leg severity (DLS) limitations; building rate, BHA tool building capabilities, steering modes and steering ratios; the well trajectory planning, sidetracks and obstacles avoidance trajectories; the interpretation of image patterns and deep directional electromagnetic measurements; the proactive and reactive geosteering; the cross sections displays; the geosteering principles, bed dip, bed thickness and incident angle calculations; the well landing strategy and geosteering; and the drop rate, inclination changes and horizontal trajectory management
        • Module 1 - Directional Well Planning

          Contents:
            • Planning
            • Video: Directional Well Planning
          • Module 2 - Horizontal Planning

            Contents:
              • Failing to Plan is Planning to Fail
              • Video: Well Planning: Horizontal Wells
              • Module Quiz
            • Module 3 - Geosteering

              Contents:
                • A Parting Thought
                • Video: Geosteering Technologies
                • Module Quiz
              • Module 4 - Integrated Geosteering Studies in Real Time -Mockup or Reality?

                Contents:
                  • Summary
                  • Introduction
                  • Problems
                  • Strategy and Methodology
                  • Examples
                  • Module Quiz
                • Module 5 - Geo-Steering Horizontal Wells: Case Studies

                  Contents:
                    • The Objective of Geo-Steering Interpretation is to Describe the Stratigraphic Location of the Wellbore as Drilling Progresses
                    • Geo-Steering is Like Driving a Car by Looking in the Rear View Mirror
                    • Directional Drilling Service Company – Display – Lacks Detail
                    • Spreadsheet-Based Tools are Widely Used by Industry- Largely a Drafting Tool.
                    • WellSight Software – Mudlog Display, Still a Drafting Tool Sample Detail but LWD Gamma Ray Difficult to Interpret
                    • Geo-steering Requirements
                    • Geosteering LWD Signal Mapping (or Correlating)
                    • Take the Interpretation to a New Level with Technical Hole Deviation (THD)
                    • Technical Hole Deviation (THD)
                    • THD Since 2000
                    • THD Components
                    • Fuzzy Logic
                    • Fuzzy Logic for Steering—Utilizes THD
                    • When THD Data are Combined with the Geo—Steering Interpretation Through Fuzzy Logic Processing, Genuine Steering Guidance is Provided.
                    • Steering Guidance
                    • Case Studies
                    • Before Geo-Steering Software, we Were All Clueless
                    • “Post Mortem”
                    • Same Field, Several Months Later
                    • Another Field - Gas Confirms When in Zone
                    • Gas Confirms When in Zone
                    • Recent Horizontal Drilling Program Look Back
                    • Yet Another Field - Technical Geo-Steering Corroborates Wellsite Geologist Calls
                  • Module 6 - Value Creation with Multi-Criteria Decision

                    Contents:
                      • Introduction
                      • Multiple Objectives in Geosteering Case Histories
                      • Objectives of Geosteering Operations
                      • Video: Basic GeoSteering Operation
                      • Current Practice Used in Making Multi-Criteria Geosteering Decisions
                      • Multi-Criteria Decision Making Method
                      • Decision Analytics for Multi-Criteria Geosteering Decision
                      • Case Study—Impact of Different Decision Criteria on Final Well Trajectories
                      • Problem Statement
                      • Conclusions
                    • Module 7 - What is Geosteering For?

                      Contents:
                        • Objectives
                        • Results
                        • Well Placement Scheme
                        • Geosteering Work Phases
                        • Preparatory Phase
                        • Drilling
                        • Analysis, Optimization
                        • Phase 1 Well Planning
                        • Phase 2 Landing the Borehole to Target Reservoir
                        • Phase 3 Geosteering the Well in The Reservoir
                        • Phase 4 Work Analysis and Optimization
                        • Well Geosteering Example Planning
                        • Landing
                        • Drilling Within Target Reservoir
                        • Final View
                        • Video: What is GEOSTEERING- What does GEOSTEERING mean
                        • Module Quiz
                      • Module 8 - Evaluating Optimal Well Placement in Horizontal

                        Contents:
                          • Introduction
                          • Statement of Problem
                          • Methods of Study
                          • Geosteering Evaluation
                          • Lateral D7.0 Build and Land
                          • Lateral D7.0 – Drain-hole
                          • Model Input Data
                          • Resistivity Tool Response Data
                          • Conclusion
                        • Post-Test

                          Kindly complete the post-test to assess your knowledge about the topic after the course.