New Features/Enhancements

• Load Factor:
  The Load Factor feature adjusts a well’s deliverability forecast to account for anticipated downtime. A pre-defined load factor table is provided, along with the ability to customize it.

• Database Export:
  With the Database Export feature, it is possible to export each well’s data in one of the following ways:
  • Creating, then writing to a new Microsoft Access database
  • Writing to an existing ODBC-compatible database
    This will enable users to query the data in the database according to their own needs and requirements.

• Decline Summary:
  Each well that is analyzed using traditional decline methods has a summary of the decline parameters stored in a table. These values may also be exported as a comma-separated-variable (.csv) file.

• Single-well rates reported in Multiple-well (Nwell) Forecasts:
  When performing a multiple-well (Nwell) forecast, the number of active wells will be displayed in the plots, and the forecast rates for each of the N wells will be available in a diagnostic table.

• Weighting Options for History Matching:
  When performing an automatic history match, sometimes it is desirable to focus the match to early-time (in the case of water rates) or late-time (in the case of gas rates). These and more variations can be achieved by selecting from the “Equal”, “Late” and “Early” weighting options provided in weighting feature.

• Copy to All Layers in Layers Editor:
  This feature gives user the ability to copy common values (e.g. permeability or drainage area) across layers. This can be done by right-clicking on a value in one layer and choosing "Copy to All Layers".

Corrected Issues

• Numerical models’ ability to generate forecasts without requiring historical data is improved and restored.
• Database import feature to update existing wells is enhanced.
• Production editor’s import feature can properly append and merge data from files.
• Fluid level importing has been improved.
• Load factor feature is now available.

Known Issues

• The following constraints for Numerical Model forecasts currently do not have any effect: qg_max, qw_max, p_min, q_gab, q_wab.

New and improved Numerical Models

• The new numerical module is more robust while performing the calculation faster. It features single vertical, single horizontal and vertical with fracture well models. The user has the option of choosing different gridding according to the selected well model. The forecast page of numerical models is also enhanced giving users ability to create several forecasts and customize how they appear on the total plot.

Analytical Models

This release of F.A.S.T. CBM™ features the analytical models. Analytical models let users create single-phase homogeneous reservoir models that can be used to confirm results of other available models or to construct and simulate more complicated reservoir/well geometries that cannot be handled by conventional geometries. The analytical well/reservoir models available include:

• Vertical well
• Vertical well with fracture (of infinite inductivity)
• Horizontal well
• Vertical well in a composite reservoir
• Vertical well in a multi-layer reservoir

Improvements to Agarwal-Gardner type curve

• The Agarwal-Gardner type curves now include Normalized Rate, Raw Data Derivative and Derivative family of curves. The additional type curves result in additional production/flowing pressure data possibilities that user can utilize to get a more reliable and more unique match on the data.

Enhancements to wellbore calculation

The improvements to wellbore calculations include:

• The mechanistic model of Petalas and Aziz is added to multi-phase pressure loss correlations. Petalas and Aziz model uses a flow pattern map and is applicable to all fluid properties and pipe geometries.
• Critical lift calculation: Users have the option of switching between Turner and Coleman critical velocity for liquid lift calculations.

Risk Analysis

• Users are able to save the random values, generated during the Monte Carlo simulation in csv format. These values can then be imported in other applicable software for further analyses.

New GIS

• The new GIS presents improvements that make it a lot more user-friendly. Among the features of the new GIS is ability to view all the wells in a gathering system, generate and superimpose bubble maps and change the gridding systems on the fly.

Modifications to History Match plot

• Plot no longer resets to default plot setting when history match is updated.
• Autoscales only after history match if the autoscale button is active (active by default).
• Can create several default plot types for history match. This is accessed using the right mouse button with the following menu options: Save as Default, Restore Default and Remove Default.

Risk Analysis

• Ability to export the randomly drawn input parameters.

Production Monitoring

• Added a line/region marker to show the synchronized points in all plots.
• Updated fluid level database import.
• Changing production history no longer causes the well monitor plots to reset.

Critical Rate Calculation

• Ability to switch between Coleman and Turner correlations for critical rate calculations

Known/Corrected Issues

• Measured static reservoir pressures from material balance page show up on history match plot.
• Latitude and longitude calculated when DLS (Canada) location is entered.
• Defaulted pi on FMB is updated when pi is changed in Volumetrics tab.
• Fix to historical cumulative and rate in Export Decline.

New Features

Forecasting Using Wellhead Flowing Pressures

• Improvements to user interface and multilayer calculations
• Speed improvement when MPP is above the end of tubing
• Ability to change multiple forecasts at once

Production Monitoring

• Ability to closely monitor the production and operation of a well newly put on production, enabling the user to simultaneously monitor gas rate, water rate, WGR and critical gas rate (Turner) along with the flowing pressures and line pressure as well as pump speed and pump efficiency data

Ability to default to OGIP estimated from various material balance methods

Improvement to importing .Mer files and .dmp2 files

Known Issues/Fixes

Improvements to program stability

Correction to multilayer calculation including conventional zones

Improvement in switching between different isotherm basis

Improvement to static and flowing material balance calculation

Improvements to user interface

New Features

F.A.S.T. CBM™ can now generate a post-history match forecast using wellhead flowing pressures. The pressure source in such a case is always the same as the flow path. Liquid level and liquid gradient can also be specified. Note that this functionality works on the history match page and will be expanded to deliverability page.

The user interface has been improved to allow user to select the drainage area calculated based on the OGIP calculated from Material Balance. Recoverable calculations are also added to the static material balance methods.

Known Issues/Fixes

Improvements to auto routine and program stability.

Ability to preview the wellbore calculations in Production History page.

Modifications to segregated flow regime in wellbores.

Fixed unmapped flow regime error in flowing up both tubing and annulus.

Importing data as a Text Column no longer causes a crash .

New Features

F.A.S.T. CBM™ traditional use of Tank-Type model is extended to include numerical models. The first phase of implementation of numerical models will enable users to model Single Horizontal Wells, Single Vertical Wells, Single Hydraulically Fractured Wells, and Equilibrium and non-equilibrium.

Users are able to generate forecasts, history match production data, or forecast based on history matched production data.

The numerical models and their user interfaces are designed to require minimum amount of data needed to run a numerical model. Grids are generated and updated automatically whenever reservoir dimensions or well coordinates are changed.

Using the concept of Flowing Material Balance originally developed by Agarwal and Gardner and modify it to flowing p/Z* versus cumulative gas production, F.A.S.T. CBM™ now utilizes the gas production rates and flowing bottomhole pressure to perform flowing material balance.

Similar to static material balance, the flowing p/Z* technique can be used to estimate Original-Gas-In-Place. In addition, given the estimated pseudo-steady-state productivity index and skin as a user input, permeability can also be estimated. This phase of flowing material balance is suited toward dry gas applications.

Another tool added to F.A.S.T. CBM™ for analyzing production data is the Agarwal-Gardner Rate-Time typecurve. Given the gas production rates and flowing bottomhole pressures, the AG type curve can be used to estimate permeability, skin and Original-Gas-In-Place. This phase of the typecurve is suited toward dry gas applications.

Bottomhole flowing pressure can now be specified as a variable changing with time. The bottomhole flowing pressure profiles can now be entered as a series of steps and linear segments representing a more realistic pressure schedule.

A new comparison plot which has drag and drop capability can be used to compare data for multiple scenarios. Properties of different wells or different models for the same well can easily be compared on these plots.

Custom Design Reporting feature drastically enhances the way reports are generated in F.A.S.T. CBM™. Report templates can now be created and saved to provide consistent reports for multiple analyses.

Improved Error Handling to generate warning messages for erroneous or missing data, extended to numerical models as well.

Improvement to database import.

Improvements to user defaults and controls.

Improvements to text data import include a user-friendly interface that allows the user to to import from multiple files, separate imported data into multiple sheets, and custom-design and store a preferred unit list.

Enhancements to plot customization include a more robust customization of plot and data customization editor, “on-demand” access to customization options and the ability to maximize and restore plot sizes.

New Features

Well and Pool File Transfer Utility has been added. It allows wells to be copied or moved from one file to another file. A log of which files have been moved or copied can be read in Windows Explorer, under
Properties, Custom.

Files saved in version 2.600 are compatible in 2.626, and files saved in 2.626 are compatible in 2.600.

Help files on network installs are now readable.

Date formats in F.A.S.T. CBM now display according to computer settings. If your computer formats dates to display as MM/DD/YYYY, dates are displayed as month/day/year. If the computer displays dates as DD/MM/YYYY, dates are displayed as day/month/year. This make copying data to MS Excel easier.

Improved error handling by removing several occurances of the "No pwf in kr calc" and other error messages.

New Features

Binary Langmuir Isotherm, using the Extended Langmuir Isotherm model, F.A.S.T. CBM™ can generate CO2 fraction profiles for both forecast and history-matched data. It also produces this profile as a function of cumulative produced gas, and allows the determination of recoverable reserves based on abandonment CO2 fraction.

Pools feature that allows for grouping of wells into one common pool and simulating the interference effect among them. Gas and water deliverability is calculated based on the individual well characteristics, but average reservoir pressure and water saturation is calculated on the pool-basis.

Users can consolidate reservoir/production/pressure data from different sources into Fekete database template. Using the connectivity between F.A.S.T. CBM™ and the database, the data can be imported efficiently.

A number of improvements have been implemented in the history matching section to make this function more effective and streamlined, such as the ability to save and restore match parameters, to turn on/off automatic execution of calculation and to honour actual cumulative gas/water production (as opposed
to using simulated values) in material balance calculation. Variable skin can now account for fracture stimulation. You can now apply lower and upper limits to history matching parameters for automatic
parameter estimation.

F.A.S.T. CBM™ calculates the minimum gas rate required to lift liquids based on the Turner Correlation. It also colour codes the historical data plot to visually indicate when the well is becoming loaded.

The flow path, pressure source, tubing ID, OD and depth can be varied with time. This allows a large amount of flexibility to reflect changing production operations during the life of a well.

Given the type/parameters of the probability distribution function and the Langmuir isotherm, the randomly generated gas contents may lead to over-saturated or under-saturated scenarios. Users can now choose to prevent over-saturation, or impose a limit for under-saturation.

Well Notes have been added to allow users to record their observations and notes for every well.

A file lock feature has been added which provides a read-only access to a ".cbm" file that is currently in use by another instance of F.A.S.T. CBM™ or F.A.S.T. PIPER™. This prevents unintentional over-writing of the data.

Enhanced reporting of reservoir parameters and forecast.

Enhanced best-fit algorithm for Decline Analysis.

New Features

Risk analysis through the use of Monte Carlo simulation.

Multiple layer history matching, including conventional sand layers.

New wellbore calculations allow matching directly on wellhead flowing pressure.

Independent calculated sandface pressures for multiple layers, tied to wellhead pressure.

Forecasting on specified wellhead flowing pressure.

GIS system showing well drainage areas and colour-coded parameters.

New Features

Service release that adds support for reading F.A.S.T. CBM™ files from F.A.S.T. Piper™.

New Features

Multi-layer deliverability forecast capabilities (includes new conventional layer).

Individual well start-times for Nwells option.

Shi & Durucan matrix shrinkage correlation.

Aquifer support in forecasts and history matching.

Multi-well CSV imports.

New, easier to use diagnostics.

Known Issues/Fixes

Maintenance release with minor bug fixes.

New Features

Dry Ash Free input area.

Wellbore Editor (convert surface pressures to sandface pressures).

Flow Options (calculate bottom hole pressures in wells with fluid levels).

Editable production data.

Automatic parameter estimation (in history match).

Hyperbolic and Harmonic decline options.

Help Documentation.