Well site and Operations Geology
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Well site and Operations Geology Course
Introduction:
Course Objectives:
Participants will learn the techniques used by wellsite geologists information evaluation through a combination of lectures and exercises that can typically be done at the well site. At the end of the course, the participants should have a good understanding and knowledge of the requirements of both Operations and Wellsite Geology.
Who Should Attend?
E&P staff who want to learn the functions that are performed by Geologists at the well site.
Course Outlines:
Introduction
- What is an Operations and Wellsite Geologist?
- Exploration and Drilling Programs – Risk assessment, regional analysis, pre-drill data acquisition.
- Components of a prospect
Overview of Petroleum Geology
- The Petroleum system – elements & processes
- The Reservoir – Sedimentary Environments
- The Trap – Structure & Stratigraphy
- Mapping and Cross-Sections
- Pore Systems and Flow Units
- Reserves and Resources – classification and categories
Data Types and Management
- Wireline Data – open and cased hole, testing, LWD and MWD
- Mud Logging Data – geological, drilling, pressure
- Core Data – whole core and sidewall core
Drilling Operations
- The drilling team – who does what?
- Types of Drilling rigs
- Rig Sub-systems – power, hoisting, rotary, circulating, well control
- Drilling tools and components – including drilling fluid
- Well control – kicks causes – basic calculations – safety equipment – kill methods
- Well costs
Planning a Well
- Well Design
- Directional Drilling – methods, and calculations
- Geosteering
Mud Logging
- The Logging unit – components and functions
- Services – monitoring, sampling, analysis
- Cuttings analysis and description
- The mud log
- Safety considerations – monitoring, overpressure, downtime
- Gas detection and analysis – types of gas – gas shows – equipment and methods
Coring and Core Analysis
- Coring methods and equipment
- Whole Core and Sidewall Core
- Core handling and preservation
- Basic calculations – core-log integration
Pore Pressure and Wellbore Stability
- Overburden and compaction
- Pore pressure generation – estimation – normal and abnormal pressure
- Detection from Seismic – pre-drill prediction
- Stress and Strain – wellbore failure – lost circulation
- Sampling – types and preservation
- Quality control of acquired well site data
Wellsite Geologist Responsibilities
Wireline Logging Tools and Measurements
- Review of basic logging tools for lithology, porosity, saturation
- Resistivity and Invasion
Wireline Log Interpretation
- Basic concepts – quick look workflow
- Determination of lithology
- Shale – calculation of shale volume - effects and corrections
- Determination of porosity
- Determination of water saturation – resistivity effects – formation water
- Analysis techniques - cross plots
Cased Hole Logging
- Production Monitoring and Reservoir Performance
- Cement Bold Log Evaluation
Borehole Imaging
- Dipmeter Principles
- Dipmeter Interpretation