Fundamentals of Well Testing Operations - ELC

The course will be held at Schlumberger's European Learning Center (ELC) training facility in Melun, France.

It will consist of some theoretical classroom sessions conducted with experienced professional providing presentations of  well testing equipment, procedures and operations. The participants will then  have  practical exposure sessions using the well testing flow loop and hands on sessions with various well testing tools in the training center. It is anticipated that the course will be 50% classroom based and 50% practical on the various training pads and workshops at ELC.

The course includes an introduction to well testing equipment and the instrumentation required to control, monitor, measure and sample reservoir fluids produced during a typical well test.

Participants will gain an understanding of the primary objective of surface and downhole well testing which is to assess well productivity by measuring gas, oil and water flow rates and pressures under controlled production conditions. A major focus during the course is to instill on the participant a thorough understanding of safe handling practices of the produced effluents (solids, liquids and gases) at high pressures and temperatures.

Throughout this course, safety will be a primary focus and participants will be shown HSE best practices that should be implemented during each phase of well testing operations.

• Agenda
• Topics
• Audience
• Prerequisites

• Agenda

  Day 1

  09.00 ELC Induction and HSE Briefing

  09.30 Introduction to Testing Services 

  Overview of the complete Testing Cycle

  Well Testing Objectives

  12.00  Lunch

  13.00 Well Test Interpretation

  Permeability

  Description of Fluid Flow in Porous Media (Pressure Diffusion)

  Pressure vs Flow Rate Relationship (Darcy Equation/Linear-Radial)

  Skin

  Pressure vs Flow Rate Relationship (Diffusivity Equation)

  Example Pressure/Flow Rate vs Time Data and Flow Periods

  Log-Log graph (Early-Middle-Late Time)

  Boundary types and derivative behavior

  Data matching for determining reservoir and boundary properties

  Day 2

  09.00 Introduction to TCP

  Perforating Principle

  Gun System Description and Selection

  Firing Heads and Accessories 

  TCP Workshop - PRACTICAL SESSION

  In this session at the ELC workshop, attendees will be exposed to common perforating equipment and assessories, such as gun systems, shaped charge technology, firing heads, firing mechanism…

  12.00 Lunch

  13.00 Introduction to DST

  Introduction to DST concept

  DST Workshop - PRACTICAL SESSION

  In this session at the ELC workshop, attendees will be exposed to common DST equipment such as packers, downhole valve, circulating valves…

  Day 3

  09.00 Reservoir Fluid Sampling and Analysis

  Downhole Sampling Operations – Cased Hole and Open Hole

  Onsite Fluid Analysis with Wellsite Chemistry: methods, major equipment and applications

  Surface Fluid Sampling: separator and wellhead sampling, Phase Sampler

  12.00 Lunch

  13.00 Reservoir Fluid Sampling and Analysis workshop visit - PRACTICAL SESSION

  Demonstration of Downhole Sampling Equipment in the ELC workshop and principle of operations

  Demonstration of Wellsite Chemistry Equipment (MGC, SirG, UOP and Water Analysis kit)

  Demonstration of Separator Sampling points and principle of operations

  Day 4

  09.00 Introduction to Surface Testing

  Introduction to Surface Well Testing and Well Test Parameters

  Equipment Introduction

  Equipment Selection and Testing Procedures/Standards Introduction

  Basic Well Test Operations and Processes

  12.00 Lunch

  13.00 Surface Welltest - PRACTICAL SESSION

  Welltest Practical Introduction

  Practical Simulation of a welltest

  In this session at the ELC testing pads, attendees will be exposed to various types of surface well testing equipment including choke manifold, 3 phase separators, tanks...which will be operated within a 3 phase fluids flow loop.

   

  Day 5

  09.00 Testing Data Acquisition (TDA) and Multiphase Flowmeter (Vx) theory

  Introduction to TDA

  Introduction to Vx

  TDA and Vx practical - PRACTICAL SESSION

  In this session at the ELC workshop, attendees will be exposed to various types of gauges, multiphase metering technology, acquisition system…

  12.00 Lunch

  13.00 Q & A Session

  Evaluation

  Class Evaluation

  Round table and wrap up

• Topics

  • Well Testing Objectives
  • Basics of Well Testing Interpretation
  • Surface Well Testing
  • Testing Data Acquisition
  • Fluid Sampling and Analysis
  • Drill-Stem Testing
  • Tubing Conveyed Perforating
  • HSE Best Practices

• Audience

  Reservoir Engineers, Production Engineers, Petroleum Engineers, Production Supervisors as well as others needing a practical understanding of Well Testing Operations.

• Prerequisites

  Prior knowledge of basic well testing operations and well testing interpretation is preferable.

• Prerequisites