N957 Forecasting Production and Estimating Reserves in Unconventional Reservoirs

Course Facts

Course Code:
N957
Duration:
4 days
Type:
Classroom
CEU:
3.2 Continuing Education Units
PDH:
32 Professional Development Hours
Certificate:
Certificate Issued Upon Completion

Summary

This course provides engineers, geoscientists, and decision makers with the skills and understanding required to forecast production and estimate reserves in unconventional (ultra-low permeability) oil and gas reservoirs. The course will emphasize oil/gas-shale, as well as tight oil and gas formations.

Forecasts of future production and reserves are fundamentally important in evaluating the economics of any resource development and operation, and are critical for the evaluation of unconventional oil and gas resources, allowing for better business decisions. More accurate forecasts and reserves estimates also lead to greater credibility with investors in both public and private companies.

Duration and Training Method

A four-day classroom course consisting of lectures with worked examples, hands-on exercises, and discussion.

Participants, including geoscientists, engineers, and decisionmakers will learn to:

  1. Appraise the strengths and limitations of empirical production decline models for forecasting production and estimating reserves in low permeability reservoirs.
  2. Predict future production and reserves using empirical production decline models in low permeability reservoirs.
  3. Evaluate the strengths and limitations of theoretical production decline models for forecasting production and estimating reserves in low permeability reservoirs.
  4. Predict future production using theoretical production decline models in low permeability reservoirs.
  5. Judge the strengths and limitations of selected rate-transient analysis and reservoir stimulation techniques for forecasting production and estimating reserves in low permeability reservoirs.
  6. Construct type wells (a.k.a. type curves) using both empirical and model-based techniques.
  7. Predict and evaluate the influence of interference in infill or "parent-child" well interactions.

Concepts covered in this course are:

  • Basic fluid flow theory
    • Transient flow
    • Radial and linear flow
    • Constant rate and constant BHP production
    • Radius of investigation
    • Boundary-dominated flow
  • Empirical production decline methods of forecasting production and estimating Reserves in Unconventional reservoirs
    • Arps decline model
    • Minimum terminal decline methodology
    • A priori determination of Arps decline parameter “b”
    • Advanced decline curve analysis and its limitations
    • Stretched exponential model
    • Blasingame modified power-law model
    • Long-duration linear flow model. Duong model
    • Comparison of models and recommended workflow
  • Use of analytical reservoir models in forecasting production and estimating Reserves in Unconventional reservoirs
  • Use of statistical resource analysis in estimating Reserves in Unconventional reservoirs
  • Applications of appropriate methodology to example situations

Who should attend

This Skilled Application level course is designed for mid to senior level engineers, geoscientists, and decision makers and engineering managers with interests in unconventional reservoir evaluation.

Prerequisites and linking courses

Other courses on the Nautilus Training Alliance Program that address Unconventional resources are N484 (Reservoir Management for Unconventional Plays), N959 (Hydraulic Fracturing for Conventional, Tight and Shale Reservoirs), N986 (Reservoir and Production Engineering of Resource Plays), N908 (Well Testing and Pressure Transient Analysis), and N989 (Rate and Pressure Transient Analysis for Unconventional Reservoirs).

 

 

Click on a name to learn more about the instructor

John Lee

Related Subjects

This was a great survey course, but the most useful discussion was the Bakken discussion for vertical -> horizontal of the DCA