Well Site Geologist Operations
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Well Site Geologist Operations Course
Introduction:
This course provides a complete overview of wellsite operations from the perspective of the Operations Geologist and the Wellsite Geologist. The focus is on being able to understand the job functions that are typically performed at the wellsite, and what use is made of the large amounts of data collected. The course will also provide an overview of essential drilling operations that have a direct bearing on these disciplines.
Course Objectives:
This 5-day course is intended for geologists that either have no previous well site experience or those that have no recent experience in well site geology. Emphasis is placed on providing the well site geologist with a basic understanding of their roles and responsibilities pertaining to the overall drilling operation both in the office and on the drilling rig. Participants will gain knowledge in preparing for a drilling operation, obtaining the best quality data during the drilling operation, providing onsite leadership, coordinating with other disciplines involved in the drilling operation and summarizing results at the end of the drilling program.
Who Should Attend?
E&P staff who want to learn the functions that are performed by Geologists at the wellsite.
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 wellsite 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 - crossplots
Cased Hole Logging
- Production Monitoring and Reservoir Performance
- Cement Bold Log Evaluation
Borehole Imaging
- Dipmeter Principles
- Dipmeter Interpretation
