TRAINING COURSE: Basic Drilling, Completion and Workover Operations

Bit & Hydraulics

• Design features and selection criteria for roller cone bit types
• Failure modes for roller cone bits and how this information can be used to improve performance
• Design features and selection criteria for fixed cutter bit types
• Failure modes for fixed cutter bits and how this information can be used to improve performance
• Tool system options which allow wellbore enlargement to a diameter greater than the internal drift diameter of a previously installed casing string
• Rotary coring bit options
• The relationship between cost per foot of a bit run and the cost of a bit, its rate of penetration, footage drilled, and the cost of the drilling operation
• Optimum time to pull a used bit based upon its cost per foot trend
• Balance competing objectives for the drilling hydraulics system
• Maintaining ecd below fracture pressure of open hole
• Nozzle sizes for adequate bit hydraulics
• Operating pressure and total pump power demands within rig capabilities

Drill String & BHA

• Drill string components and their suppliers
• Purposes of the various drill string components
• Drill string performance properties
• Diagnosing drill string mechanisms
• Steps to prevent drill string failures

Drilling Fluids & Solids Control

• Functions of drilling fluids
• Fluid types and their selection criteria
• Fluid properties, how they are measured, and additives used to control them
• Benefits of solids control, solids control equipment function, and system configuration

Directional Drilling & Trajectory Design

• The objectives of directional drilling
• Trajectory design options and selection criteria for given surface and downhole requirements
• Trajectory measurement and wellbore position calculation techniques and limitations

Oilfield Casing

• Purpose of casing in an oilfield well
• How joints of casing are connected together
• Steps in the process for drilling and cementing casing in an oil/gas well
• Api/iso casing naming convention
• Advantages and disadvantages to casing produced with seamless and erw properties
• Casing descriptions and dimensions and, when appropriate, describe the correlation between them
• Where the four different casing applications are in a wellbore schematic

Primary & Remedial Cementing

• The manufacturing processes to blend composite materials that make up oilfield cement
• The various uses of additives to modify cement properties
• The cementing tools at the surface and downhole and the related cement displacement process to achieve a quality primary cement job to isolate a casing string
• The casing cement evaluation tools and methods to assess cement job quality
• The various practices that comprise options to attempt repair of primary cementing jobs that are referred to as cement squeeze operations
• How to calculate typical casing string cement volume requirements
• How to evaluate a cement bond log and make recommendations
• How to conduct plug and abandonment operations, what they are, basic equipment used and expected results to securely isolate the  wellbore from the environment and human interaction for the future

Onshore Conventional Well Completion

Hydraulic Fracturing

• The significance of rock mechanics in all relevant production engineering operations
• The most common non‐chemical stimulation methods, their objectives and limitations in conventional resources plays
• The most common non‐chemical stimulation methods, their objectives and limitations in unconventional resources plays
• The basic principles of hydraulic fracturing in conventional plays, the difference between acid and proppant treatments, and  how to select optimum stimulation candidates
• The basic principles of hydraulic fracturing in unconventional resource plays, the difference between slickwater and cross‐linked treatments, and how to select optimum stimulation candidates

Formation Damage & Matrix Stimulation

• The basic causes of oilfield formation damage and how they are recognized
• The concept of “True Formation Damage” and the principles of formation remediation once it has been correctly identified as  being the cause of lost production
• How “pseudo” damage and differs from True Formation Damage
• The principles of limestone matrix acidizing, and the chemistry and reactions involved
• The principles of sandstone matrix acidizing, and the chemistry and reactions involved
• Formation damage identification and the positive results achieved by successfully conducting matrix acidizing jobs

Sand control

• The need for sand control
• The causes of sand movement
• What consolidated sand is, and what it is not
• Non‐mechanical and mechanical methods of sand control
• Recognize that rate restriction is a valid practice to manage sand production
• Recognize that minor sand volume produced may be tolerated
• Various screen types for sand control
• Aspects of pre‐packed screens for sand control
• The principles of sand control screen and gravel completions
• The three steps comprising a gravel pack completion design
• Various fluid options for pumping gravel slurry into a gravel pack completion
• The function of a gravel pack “crossover tool”
• The function of a gravel pack “shunt tube”
• The function of a frac pack completion
• The frac pack completion well performance results
• The function of an expandable sand screen completion
• The components of an expandable screen and possible benefits resulting from the use of expandables

Well intervention

• The main components of the following: 
• Slickline unit
• Braided wireline unit
• Electric line unit
• Conventional workover (completion) unit
• Snubbing (hydraulic workover) unit 
• Coiled tubing unit