Discipline Reservoir Engineering
LevelAdvanced
Duration5 Days
Delivery Mechanism Classroom
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Analysis of Production Performance Curves

The workshop is designed for the attendee to become acquainted with past and current decline curve analysis methods.  Single and dual fluid production systems will be discussed along with the different types of declining curves.  Students will also be learning about the difference between the nominal and continuous exponential declines, the analysis of production histories, when and when not to apply decline curve analysis, and production segments.  Fetkovich transient and Arps decline curve analysis techniques, methods to amend a non-converging production curve to force it to the economic limit, re-initializing decline curves, material balance time, and real time relationships will also be covered throughout the duration of this course.

It is recommended that each student bring a portable computer to class because type curve, rate-time, and other auxiliary programs will be furnished to each participant.  During the duration of this course these programs will be used to solve real world problems to insure the participant leaves with a working knowledge of the utility of each program.

  • Agenda
  • Audience
  • Prerequisites
  • Agenda

    Day 1

    Decline Curve Analysis

     

    • Decline curve analysis
    • The Arps curves
    • Nominal and continuous exponential declines
    • Realistic decline curve

    On this day, participants will learn about decline curve analysis, the Arps curves, and nominal and continuous exponential declines.  Realistic decline curves will also be discussed.

    Day 2

    Types of Curves 

    • Production segments
    • Annotating performance curves
    • Types of declines and curves
    • Interpretation of field curves
    • Defining the reservoir character       

    Day two of this course will focus on different types of curves.  Production segments, annotating performance curves, the interpretation of field curves, and defining the reservoir character will also be covered.

    Day 3

    Pseudosteady State Flow Equation 

    • Pseudosteady state flow equation
    • Comparing material balance to real time 
    • Blasingame and Lee solution

    Participants will learn about applying the pseudosteady state flow equation to decline curves and comparing material balance to real time on this day.  Applying the Blasingame and Lee solution to calculate oil or gas in place and reservoir properties, coupling the transient and boundary dominated flow stems, and the application of pseudosteady state solutions will also be discussed.  The day will end with participants learning about how derivative and integral derivative functions to fit onto a type curve as well as the method of analysis.

    Day 4

    Production Performance Plots 

    • Application of production performance plots
    • Calculate relative permeability ratio
    • Applying a simple derivative plot to interpret well performance

    The last day of this course will focus on the application of production performance plots to interpret reservoir performance, calculate relative permeability ratio as a function of cumulative production, as well as applying a simple derivative plot to interpret well performance. 

    Day 5

    The last day of this course will focus on the application of production performance plots to interpret reservoir performance, calculate relative permeability ratio as a function of cumulative production, as well as applying a simple derivative plot to interpret well performance.

    Case studies and applications

  • Audience

    Petroleum, Reservoir, Service Company Engineers, Geologists, Operations and Business Development Managers, Landmen, Consultants, Loan Officers, and anyone working in the oil and gas industry who is interested in learning about analyzing oil and gas performance data.

  • Prerequisites

    Some knowledge of oil and gas production, excel, and basic algebra.

  • Prerequisites

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