Maximizing asset value through focused well and reservoir management

Luis Blanc 
5 days

Business context

The main objective of this course is to acquire practical skills and tools on how to set up an asset depletion plan through a focused well and reservoir management approach. It is not uncommon in many asset teams to have an unclear picture of what future actions will be taken to the different wells and reservoirs as they deplete. In many cases, these actions are reactive rather than proactive. This is mainly due to a lack of a well defined reservoir management and depletion plan.  This course presents the student with the knowledge and tools to design a depletion plan. Such plan would be consistent with the increased understanding of the reservoir behavior obtained from a focused reservoir management. The depletion plan is a comprehensive set of actions that the asset team designs to identify a way forward for every well (identify future workovers, remedial work, gas lift method, all the way to well abandonment) and  for every reservoir (identify underdeveloped areas, infill drilling targets, secondary recovery or EOR application, etc

Who should attend

The course is aimed at team asset managers, production technologists, production geologists and reservoir engineers that have already some experience (1+ year) on the management of an asset.

Course content

  • Understand the data: production, pressure, fluid, rock/reservoir data.
  • Well and reservoir model types: how to create/update them. Advantages and disadvantages.
  • Well/reservoir/field forecast under different scenarios.
  • Data acquisition: equipment required and frequency.
  • Surveillance plan: procedure, flowcharts.
  • Field development planning: current and alternatives.
  • Well and reservoir depletion plan: what it is and how to use it.
  • Well folder.
  • Reservoir folder.
  • Field forecast consistent with depletion plan

Learning, methods and tools

At the end of this course, participants' knowledge will be reinforced in the following four areas:
1) To understand the source and quality of the existing field data.
2) To increase the understanding of the well/reservoir behavior.
3) To integrate the newly acquired knowledge into a data acquisition/surveillance and depletion plan.
4) To identify current knowledge gaps and what actions to take to close them.

Topics are introduced by lectures and discussion, and learning is re-enforced by practical small classroom exercises and a case study during the last day of the course. Active participation is encouraged.  Use of laptops and other handheld devices for the exercises is encouraged and facilitated. Hand-out material in paper and/or electronic format will be provided.

 

Day by day programme

Day 1: Understand and validate the data

  • Production data
    • Metering
    • Well testing
    • Data allocation
    • Vintage (old versus new)
    • Common mistakes (miss-allocation, frequency or lack of)
  • Pressure data
    • Downhole versus surface measurement
    • Selecting a pressure datum
    • Common mistakes
  • Fluid data
    • Sampling point (downhole versus surface): advantages and disadvantages
    • Sample timing (initial versus current conditions)
    • How to use fluid data
  • Rock/reservoir data
    • QC and validation of conventional core and SCAL data
    • QC and validation of pressure transient analysis data
  • Exercises

 

Day 2: Understand well and reservoir behavior (what we know and what we don't know)

  • Data preparation
  • Create/update well models
  • Set up/update reservoir models (using tools ranging from simple spreadsheets to numerical 3D simulators): advantages and disadvantages
  • Use models to understand reservoir behavior.
  • Forecast under different scenarios (challenge current field development plan)
  • Identify knowledge gaps and what data is needed to close them (to be incorporated into the data acquisition and surveillance plan).
  • Exercises.

 

Day 3: Data acquisition and surveillance plan

  • What data to acquire
  • How (equipment required) and when (frequency) to acquire the data: cost and scheduling
  • Surveillance plan
    • Database to store information
    • Tools to use to analyze/validate data
    • How to do surveillance: procedure, flowcharts
  • Exercises

 

Day 4: Well and reservoir depletion plan

  • Reservoir folder
  • Well folder
  • Well depletion plan
  • Reservoir depletion plan
  • Field forecast consistent with latest depletion plan
  • Alternative forecasts
  • Set up tool to evaluate "what if cases"
  • Exercises

 

Day 5: Case study

  • To be determined (if possible, using actual production from an existing field). The purpose of this exercise is to put into practice all the material discussed in previous days.