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E-455 - Wellbore Treatments

  • Drilling or completion engineers, supervisors, lab or production professionals, non-specialists in wellbore treatment
  • To provide knowledge and skills needed to examine well damage issues and take appropriate actions
Learning Objectives
  • To identify the nature and the origins of well damage
  • To choose the adequate stimulation method
  • To learn how to deal with sand production and water coning
Ways and means
  • Animations - Exercises
  • Visit of a rock mechanics and reservoir-wellbore interface laboratory
  • Application to a real case (project) for the participants in the “Drilling and Completion Engineering” training course (E-412)
Kindly refer to the following complementary courses which might be of interest: “Matrix Acidizing” (E-456) and “Basic Hydraulic Fracturing”(E-457)

Introduction to wellbore treatments 1 day
  • Fundamental reminders on productivity index (PI), the skin effect and flow efficiency, the different components of the skin
  • Productivity issues: cause of low productivity, nature and origins of well damage, location of problems and possible solutions
  • Damage due to fluids: mechanisms, prevention
Matrix treatment: acidizing... 1 day
  • Aims; how it works
  • Carbonate rocks and sandstones; inner characteristics, reactivity to injected fluids
  • Choosing the acids and the additives
  • Choosing the wells to be treated
  • Design: preparation, checks and guidelines during the operation, after the acidizing (flow back...), possible cause of failure, coiled tubing...
Hydraulic fracturing 1 day
  • Aims and principles; candidate wells
  • Frac fluids and fracture propping
  • Calculation models and frac impact on PI
  • Design; program, frac evaluation
  • Other cases: pre-frac, minifrac, acid frac
Sand control 1 day
  • Basics: consequences of sand, prediction of sand, sand analysis
  • Sand control techniques; case of mechanical processes (determining the gravel and the screens...)
  • Design: cased hole gravel packing, openhole gravel packing, preparing the gravel pack, various methods, guidelines
Water or gas shut-off and deposits 0.5 day
  • Origin of the problems
  • Remedial
Summary note 0.5 day
  • Debate around several examples
  • Case study
2016 course calendar
Language Dates Location Tuition Register
Mar 07 - 11 Pau €3,380 Online By email
Sep 12 - 16 Pau €3,380 Online By email