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E-456 - Matrix Acidizing

E-456 - Matrix Acidizing

5 days
PRO/ACIDIFE
Sessions
This course is not scheduled.
Who should attend?

Audience

    • Drilling or completion engineers, supervisors, lab or production professionals, non-specialists in wellbore treatment.

Level

  • Proficiency
  • This course provides knowledge and skills needed to identify well damage issues in sandstone and carbonate reservoirs, and design acidizing programs.
Learning Objectives
  • Upon completion of the course, participants will be able to:
  • identify the nature and the origins of well damage,
  • design an acidizing program,
  • select the additives needed,
  • set up the acid treatment program.
Course Content

INTRODUCTION TO RESERVOIR TREATMENTS

0.5 day

  • Fundamental reminders on the Productivity Index (PI), the skin effect and flow efficiency, the different components of the skin.

FORMATION DAMAGE

1 day

  • Productivity issues: cause of low productivity, nature and origins of the damage, location of the problems and possible solutions.
  • Scale deposition: scale control and prevention.

MATRIX TREATMENT: ACIDIZING CARBONATES

1 day

  • Aims; how it works.
  • Sandstones: inner characteristics, reactivity to injected fluids.
  • Laboratory studies.
  • Exercises.

MATRIX TREATMENT: ACIDIZING SANDSTONES

1 day

  • Aims; how it works.
  • Sandstones: inner characteristics, reactivity to injected fluids.
  • Choosing the acids.

ACIDIZING ADDITIVES

0.5 day

  • Review of the different additives (corrosion inhibitor, iron complexing agents, surfactants, solvents, etc.).
  • Selection of the additives.

MATRIX TREATMENT DESIGN

0.75 day

  • Candidate selection.
  • Matrix design methodology.
  • Diversion.
  • Treatment evaluation.
  • Other associated processes (water shut-off…).
  • Causes of failure in matrix acidizing.
  • Case study.
KNOWLEDGE ASSESSMENT 0.25 day

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Ways & Means
  • Exercises - Teamwork.
  • Visit of a reservoir-wellbore interface laboratory.