# Well Architecture & Directional Drilling in Unconventional Wells

UARCDD-EN-P

## Who should attend?

• This certifying training aims to provide the necessary knowledge to plan and carry out a directional drilling (geothermal, water, storage, oil, gas), including the architecture.
Public :
• This certification is intended for technicians, tool pushers, site managers, supervisors, superintendents and engineers who will be involved in oil/gas drilling operations.

Level : Foundation

## Course Content

• ### DRILLING & CASING PROGRAM

• Role of casings.
• Parameters to be considered to determine well architecture:
• Well type.
• Pore and frac pressures.
• Completion, lithology.
• Different types of casings:
• Surface.
• Intermediate.
• Production.
• ### CHARACTERISTICS OF CASINGS

• Geometric, physical and mechanical properties of pipes and connections.
• Use of Drilling Data Handbook.
• ### SHOE POSITIONING

• Hypotheses to be considered, casing point - Kick tolerance.
• Examples and exercises.
• ### CASING STRING CALCULATION

• Principles and assumptions to remember for the different strings.
• Stress cases study:
• Collapse.
• Burst.
• Tension.
• Tri-axial study.
• Safety factors.
• Casing selection: examples and exercises.
• ### CALCULATION EXAMPLES

• Case studies and writing of a spreadsheet in order to determine the casing point, the kick margin, the pressure max…
• ### DIRECTIONAL DRILLING EQUIPMENT

• Specific drilling equipment: downhole motors, rotary steerable system.
• Measuring equipment: MWD.
• ### DRILLING ENGINEERING

• Well planning and trajectory calculations.
• Limits of use of a drill string: buckling.
• Drill string design.
• Torque and drag calculation.
• Drilling fluids and cementing program.
• Hole cleaning.
• Logging.
• Well control.
• ### HORIZONTAL & ERD

• ERD, multilateral and short radius.
• ### CASE STUDIES

• Writing of a spreadsheet in order to determine the trajectory of a 2D well according to the needs.

## Learning Objectives

• Upon completion of the course, participants will be able to:
• calculate different casing strings using the Drilling Data Handbook,
• select the right position of casing shoes,
• calculate the stress applied to the casing pipes,
• choose the right wellhead with regards to the casings used,
• know the equipment needed for directional drilling,
• design a directional well,
• calculate the trajectories of a deviated well in 2D,
• design the drill stem adapted to the well’s profiles to reach a target,

## Ways & Means

• Exercises.
• Movies.
• Work in groups, teamwork.
• Computer use for the design of a personal spreadsheet program.
To French entities : IFP Training is QUALIOPI certified ; you may contact your OPCO about potential funding.