Gas Reservoir Production Forecast

Description

Forecast gas reservoir pressure and production using material balance equations. Given OGIP, predict pressure at future production levels or vice versa.

Spreadsheet Preview

31 rows x 3 columns

Required Functions

PO.MBE.Gas.PredGp

Predicts cumulative production at given reservoir pressure, [scf].

PO.MBE.Gas.PredP

Predicts reservoir pressure at given cumulative production, [psi].

PO.MBE.Gas.RF

Calculates recovery factor for a gas reservoir, [fraction 0-1].

How to use this blueprint
  1. In Excel, go to the Petroleum Office ribbon tab and click Blueprint Manager
  2. Search for Gas Reservoir Production Forecast
  3. Click on the blueprint to preview the spreadsheet template
  4. Click Insert to place it into your worksheet. Modify the input values to match your data.

Related Theory

Gas Reservoir Material Balance

p/z method for volumetric gas reservoirs, modified p/z for geopressured reservoirs, and OGIP estimation techniques

Material Balance Overview

Overview

Guide to material balance methods for reservoir engineering including drive mechanism identification, OOIP/OGIP estimation, and aquifer modeling

Oil Reservoir Material Balance

Havlena-Odeh straight-line method for oil reservoir analysis, OOIP estimation, gas cap ratio determination, and Campbell plot interpretation

Related Blueprints

Gas Reservoir p/z Analysis

Perform p/z analysis for gas reservoirs to estimate OGIP (Original Gas in Place). The p/z vs Gp plot is linear for volumetric depletion, with x-intercept = OGIP.

Underground Withdrawal Calculation

Calculate underground withdrawal (F term) for material balance analysis. F represents total reservoir voidage from oil, gas, and water production.

Effective Compressibility Calculations

Calculate effective compressibility for different reservoir types. Effective compressibility is critical for material balance and pressure buildup analysis.

Fetkovich Aquifer Model

Calculate water influx using the Fetkovich pseudo-steady state aquifer model. This simplified approach treats the aquifer as a tank with a productivity index.

Van Everdingen-Hurst Aquifer Model

Calculate water influx using the Van Everdingen-Hurst (VEH) transient aquifer model. This rigorous method handles both infinite and finite aquifers with time-dependent pressure response.

Material Balance Expansion Terms

Calculate material balance expansion terms for oil reservoir analysis. These terms quantify fluid and rock expansion as pressure drops during production.

Tags:
mbegasforecastpressureproduction

Need a custom calculation? Request a Blueprint

An unhandled error has occurred. Reload X