CDGA

Basic Drilling, Completion & Workover Operations

This course is specifically designed to give a technical overview of the science and art of drilling operations, completion practices and post-completion wellbore enhancement or remedial work over techniques (well intervention). Its purpose is to develop an understanding of the WHAT, WHY and HOW of each of these areas of engineering practice. The candidates learn to visualize what happening down hole is, discover what can be accomplished and gain an appreciation for wellbore risks and the possibility of damage to the formation. How drilling and completion practices can alter reservoir interpretation and performance will be discussed. The candidates will become conversant with specific technical terminology and aware of practical applications, which should enhance communication and interaction between disciplines.

The Training Course Will Highlight ?

Training Objective

By the end of this CDGA training course, participants will be able to:

How drilling, completing and reworking a well affects its ability to produce
What can be done within open-hole and cased wells, as a part of reservoir management How drilling practices can damage or stimulate producing wells

Target Audience

The course is directed to all technical, field, service, support and supervisory personnel desiring to gain an introductory overview of these topics and how they interrelate, cross-training of other technical disciplines such as reservoir and surface facility engineers plus geoscientists, anyone who interacts with drilling,

Completion or work over design engineers such as technical supervisors and technical service personnel. Reservoir Engineers will learn what can be done within open-hole and cased wells as they execute reservoir management. Drilling and completion personnel will learn how the producing reservoir can be damaged or stimulated by what they do.

Training Methods

Daily Agenda

Overview of the Drilling Process

Overall drilling practices
Language of drilling
Reservoir rock and fluid properties
Rigs and rig equipment
Drilling string components and design
Bits
Drilling fluids and hydraulics
Rig operation
MWD
Well control
Hole problems and stuck pipe
Drilling risks
Cores and coring
Casing design and installation
Primary cementing
Directional, horizontal, multilateral and under-balanced drilling
Wellhead and trees

Overview of the Completion Process

Zonal isolation
Tubing, packers and completion equipment
Safety and flow control devices
Open hole completions
Basic completion types
Perforating
Open and cased hole logging
Formation damage and treatment
Completion fluids Multiple completions

Overview of Work over Techniques

Stimulation application: surfactants, solvents, acidizing, fracturing and deep perforating
Formation and sand control: creens, chemical consolidation, gravel packing, frac-pack, new and novel techniques
Scale and corrosion
Paraffin and asphaltenes
Recompletions
Reworks
Sidetracking
Deepening
Coiled tubing

Accreditation