Fundamentals of Drilling (2 Days)

Target audience
Although this drilling course requires no prior knowledge, it provides a more in-depth look at drilling than the one-day course so is more suited to personnel who work in a drilling related area such as purchasing, contracting, accounting, reporting type roles directly associated with drilling operations.

Course objectives
This course examines the tools and methods used in exploration drilling, provide an understanding of the technical terminology and jargon used, and also examines sources of error and uncertainty which might lead to costly problems.

Course outline

Overview of drilling activities
- The historical record and current worldwide activity levels
- Rules and regulations
- Who controls the drilling process; safety and environmental constraints
- Reporting requirements
- EXERCISE: Decoding a drilling report

Pre-drill preparations
- Selecting a drilling location
- Rig types and characteristics
- Well planning, procedures and budgets
- EXERCISE: Constructing a time-depth well prognosis
- EXERCISE: Budgeting a well

Drilling the well
- Components of a rig – hoisting, circulating, rotating and control systems
- The mechanics of making hole
- Special techniques - deviated and horizontal drilling
- CASE STUDY: Intercepting a deviated wellbore

Evaluating the well
- Sources and reliability of well data
- Mudlogging and coring
- Oil and gas show analysis
- Wireline logging
- Measurement While Drilling
- Flow testing
- EXERCISE: Reading wellsite reports
- EXERCISE: Working with well logs

Completing the well
- Well abandonment
- Completion for production

Drilling problems and remedies
- Kicks, blowouts and oil spills
- Loss of hole, loss of equipment and fishing
- Workover and intervention techniques
- CASE HISTORY: Repairing damaged well

Fundamentals of Oil & Gas Production
- Types and characteristics of reservoir drive mechanisms
- Field development concepts

Concepts of reserves
- Categorisation of reserves and resources
- Definitions: technical, proven, probable and possible
- Approaches to reserves estimation: deterministic versus probabilistic
- Measures of profitability: NPV and EMV
- EXERCISE: Beans, beans and more beans! – Illustrating uncertainty
- EXERCISE: Understanding press releases

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