Highlights of the Meyer 2005 release:

MFrac

• Enhanced numerical solver algorithm for faster convergence. Run times for cases with a large number of lithology and high fluid loss layers have been significantly reduced without sacrificing numerical stability.

• The proppant transport solution has been enhanced for a banking fluid. Now, if the proppant settles out or is no longer suspended, it will not result in a screen-out.

MPwri

• Enhanced numerical solver algorithm for faster convergence. Run times for typical cases have decreased by a factor of two or more without sacrificing numerical stability.

  As an example, the run time (on a test system) for the sample file “Thermal Poro-Elastic with Variable Injection Rate.mpwri” decreased from 150 seconds with Meyer 2003 SE to 48 seconds with Meyer 2005.

• MPwri now has the ability to process real-time data from MView.

MinFrac

• Implemented Nolte’s After Closure Analysis to determine formation permeability and reservoir pressure.

New Simulators

We are pleased to introduce two new simulators, MWell and MFrac-Lite, with this release.

• MWell is a stand-alone wellbore hydraulics simulator for calculating pressure losses (frictional, perforation, near wellbore, etc.) and pressures in the wellbore without running a fracture simulator.

• MFrac-Lite is a three-dimensional hydraulic fracturing simulator similar to MFrac but without some of the more advanced options. This simulator is for those who do not need the full functionality of MFrac.

Please call for information regarding MWell and MFrac-Lite licenses.

MWell—Wellbore Hydraulics Simulator

MWell is a wellbore hydraulics simulator for calculating surface and/or bottomhole pressures, gravitational head, restrictions, transport times and hydraulic power requirements in the wellbore. Near wellbore and perforation pressure losses are also calculated to determine the bottomhole treating pressure in the formation.

MWell is essentially a subset of the MFrac simulator without the fracture simulation. MWell was designed for real-time analysis to calculate BHTP’s from surface conditions, but it can also be used as a design tool for determining wellbore pressure characteristics prior to treatment. MWell can simulate time dependent formation pressures with a user-specified minimum horizontal stress and a time dependent table of net pressures and BHFP’s.

MFrac-Lite—3D Fracture Propagation Simulator—Lite version

MFrac-Lite is a three-dimensional hydraulic fracturing simulator similar to MFrac but with a smaller feature set. MFrac-Lite provides ease of use by restricting the available simulation options and requiring less input data than MFrac.

MFrac-Lite uses the same numerical routines as MFrac, has the same real-time capabilities as MFrac, and is designed to be compatible with MFrac. This simulator is designed for those who do not need the full functionality of MFrac. The following table illustrates the differences between MFrac and MFrac-Lite:

Feature/Option	MFrac-Lite	MFrac
Auto-Design	Yes	Yes
Export to Exodus	Yes	Yes
Fluid Loss Data	Three layers	1000 layers
Fluid Loss History	No	Yes
Fluid Type Dependent Fluid Loss	No	Yes
Fracture Geometry	2D and 3D	2D and 3D
Heat Transfer	No	Yes
Import LAS Files	No	Yes
Limited Entry	No, single zone	Yes, up to ten zones
Net Present Value	Yes	Yes
Perforation Erosion	No	Yes
Proppant Flowback	No	Yes
Proppant Transport	Yes	Yes
Real-Time	Yes	Yes
Reservoir Coupling	Linear	Linear or Ellipsoidal
Rock Properties	Three layers	1000 layers
Treatment Type	Proppant	Proppant, acid, or foam
Wellbore Hydraulics	Yes	Yes

Meyer 2005 Changes (Build 5.20.1209)

All Apps

• [Enhancement] Added a toolbar button and a shortcut key for the Cut command. (#1153)

• [Enhancement] Added toolbars and shortcut keys to all screens with spreadsheets. (#1152)

• [Enhancement] Spreadsheets now support row freezing. The user can drag the freeze bar underneath the column title row or right-click on the spreadsheet and select Freeze Panes. (#617)

• [Enhancement] Spreadsheets now have a Print button. To print a particular selection, the user selects the rows and columns that they wish to print. The user may print the whole spreadsheet by selecting the All radio button in the Print range group box of the Print dialog. The default is the Selection radio button. (#1146)

• [Enhancement] Text blocks can now be added to bar plots. (#580)

• [Enhancement] When upgrading plot files created before 1994-08-16, keep the line width if it is non-zero. Previously, we always discarded the line width, even if the user had set it to a higher value.

• [Fix] Disable PDF format help menu items when Acrobat Reader is not installed. (#1240)

• [Fix] Fixed a potential deadlock between MView and the other apps. (#1173)

• [Fix] Fixed a visual glitch when dragging a window across a dialog that has group boxes. (#1317)

• [Fix] Fixed a visual glitch when resizing a dialog while a drop-down list is open in a spreadsheet. (#1170)

• [Fix] Fixed issues with the Cut, Copy, Paste, and Fill Down commands in the spreadsheets. (#1281)

• [Fix] Plot and Report windows didn’t support Shift+F10 or the App key to open the shortcut menu. Wherever right clicking opens a pop-up menu, the Shift+F10 and the App Key keyboard shortcuts now work. (#1142)

• [Fix] Plots with cross-hairs now only draw the cross-hairs when the plot has the system input focus. (#1283)

• [Fix] Set the focus back to the proper edit control when the control is blank and the user clicks “Change” on the error message box. (#1324)

• [Fix] When upgrading plot files created before 1997-06-09, the code now turns on Auto Scale for both X and Y axes, as was originally intended. The old code turned on Extend Grid Lines instead.

Help System

• [Enhancement] The old WinHelp help system has been replaced with Microsoft HTML Help. The new help system is more robust and easier to update because the help documents are single sourced. A single mhelp.chm file replaces the multiple .hlp files used in the old system. (#1263)

• [Enhancement] Pressing F1 now opens the help file to an appropriate section. (#627)

MFrac

• [Enhancement] Enhanced numerical solver algorithm for faster convergence. Run times for cases with a large number of lithology and high fluid loss layers have been significantly reduced without sacrificing numerical stability. (#1294)

• [Enhancement] The proppant transport solution has been enhanced for a banking fluid. Now, if the proppant settles out or is no longer suspended, it will not result in a screen-out. (#1213)

• [Enhancement] Added “previous” and “next” buttons to the friction and rheology data. (#404)

• [Enhancement] Added a toolbar to the database dialogs. (#1171)

• [Enhancement] The “Export to Exodus” command now supports exporting 3D (.csv) data to the Exodus reservoir simulator.

• [Enhancement] The wellbore hydraulics and diagnostics plots that had a real-time option now have a three-state setting allowing the user to choose between design only, real-time only, or both. (#1293)

• [Fix] “Average Diameter” now has units in the Proppant Database dialog. (#484)

• [Fix] Fixed a bug in drawing the Simulation Data window when the user opens it while running with no sections selected. (#1267)

• [Fix] Fixed initialization of pay zone depth values. (#1335)

• [Fix] In the Treatment Schedule, when toggling the “Stage Friction Multiplier” check box before activating the “Stage” tab, the application no longer crashes. (#1265)

• [Fix] Pressing F2 in MFrac when in design mode would incorrectly bring up the Add Log Entry dialog. (#581)

• [Fix] Prevent the Simulation Data window from covering the other windows that are already open. (#1336)

• [Fix] Report the correct closure width for treatments that are either overflushed or have a zero concentration stage. (#1308)

• [Fix] The Fracture-Proppant Effects and Wellbore-Proppant Effects dialogs no longer display multiple times when the user holds down the up or down arrow keys while selecting User Specified in the Options dialog. (#1299)

• [Fix] The Graphical Input Treatment Schedule now refreshes properly when displaying real time data. (#1276)

• [Fix] The Multilayer tab list box did not offer keyboard access to the list box items. The user could only access this list box using the mouse. Also, this list box does not have a horizontal scroll bar. The dialog has to be sized horizontally to see the zone name when the zone name length exceeds the viewable area in the list box. (#1141)

• [Fix] The Simulation Data window now saves its display settings when closing the main application window without first closing the Simulation Data window. (#1294)

• [Fix] The Treatment Schedule error checking logic now selects the Stages tab if necessary. (#1300)

• [Fix] Visual consistency between the Wellbore Fluid Type combo box and the Fluid Type combo boxes in the spreadsheet of the treatment schedule. (#1132)

• [Fix] The fluid, proppant, and acid databases now show the proper database item in the title bar when scrolling through the list using the arrow buttons. (#1245)

• [Fix] The simulation data window was not updating the units text in the header row when the units were changed. (The actual data was still being updated.) (#1273)

• [Fix] The Treatment Schedule was dropping rows off the end of the spreadsheet when the user would insert a new row with the spreadsheet already full. (#1179)

• [Fix] There was no indication that the zone name has a length limit of 19 characters. The user could type as many characters as he wished in order to name a zone, but when the dialog is closed on OK, only the first 19 characters were being saved. This was not apparent and could lead to wasted time by going back to the dialog and renaming the zone after keying in a long zone name the first time. The same goes for the zone name in the spreadsheet of the Fluid Loss Data dialog. (#1143, #1144)

• [Fix] When graphically editing the Treatment Schedule in MFrac with a case in Design Mode, the plot lines on the plot and the legends were not being redrawn. (#1195)

• [Fix] When running a real-time case, the calculated value of delta pressure (friction) could have been negative even when the rate was zero during shut-in and startup. (#1318)

MinFrac

• [Enhancement] Implemented Nolte’s After Closure Analysis for determining formation permeability and reservoir pressure. (#1207)

• [Enhancement] Added the Step Down, Step Rate, and Horner analysis data to the reports. (#1175)

• [Enhancement] MinFrac now allows the user to display the report without requiring the user to select a time scale first. This prevented the user from seeing the report with the input data unless there was a time selected. (#1237)

• [Enhancement] The Simulation using Base Data and the Simulation using History Match Data dialogs now remember the last selected spreadsheet toolbar, spreadsheet column widths, dialog title, and combo box selection. (#1159)

• [Enhancement] The Options/General Tab now has an Import Data File button so the user can import a file once they choose Graphical Technique—Use data from an ASCII text file. (#1231)

• [Enhancement] The Step Down Diagnostic Plot now displays the number of perforations, the discharge coefficient, and the perf diameter. (#1250)

• [Enhancement] The display window on the Ranges plot in MinFrac did not get updated when the units change. The user had to go to the next plot then back to get the display window to update. (#1249)

• [Fix] Gray plot menu items consistently in the wizard and the standalone report. (#1236)

• [Fix] Fixed an unhandled exception in MinFrac when closing MinFrac with Step Down Select Points open and real-time data coming in from MView. (#1282)

• [Fix] Fixed an unhandled exception in the regression plot when using Automatically Find Points on a range with no data. (#1305)

• [Fix] Removed an unintended thin gray line around the wizard window. (#1246)

• [Fix] Shutting down MinFrac while a plot window was open could cause an assertion failure. (#1284)

• [Fix] The Extension Pressure and Residual displayed values on the Step Rate Diagnostic plot were not being updated when the input units of pressure changed. (#1247)

• [Fix] The Rate, Pump, and Volume edit boxes were not working properly when editing the data. When a number was deleted, inserted, etc., the cursor was being placed at the end of the number. (#1242)

• [Fix] The code to remove an application name from the File/Run menu was not being called for all the different menus in MinFrac. Thus, when the analysis wizard was invoked, the MinFrac name was still under the File/Run menu. (#1185)

• [Fix] The drag line feature now works correctly in log/log plots. (#1233)

• [Fix] The Time Dependent Fluid Loss dialog example in the help now does not have the Spurt Loss Coefficient Multiplier column. (#1131)

• [Fix] The units were not being dynamically updated in the Step Down and Step Rate dialogs when the user would change the units in the unit dialog. This only occurred in the wizard since the dialogs are modeless and the user can access other dialogs and menu items. (#1221)

• [Fix] Fixed a visual glitch when maximizing both the standalone report and the wizard. (#1234)

• [Fix] Fixed a visual glitch when resizing the Step Down dialog box. (#1222)

MNpv

• [Fix] MNpv no longer allows you to enter more characters than it can actually store for the currency name or the currency symbol. (#1210)

• [Fix] The MNpv Units dialog no longer reverts all your changes to the unit selections whenever you change the currency name or the currency symbol. Also, clicking Cancel on the Units dialog will now undo any changes made to the currency name or the currency symbol. (#1209, #1211)

• [Fix] The MNpv Units dialog now updates its drop-down combo list boxes when you change the currency name or the currency symbol. (#1208)

• [Fix] The Unit Cost Table dialog now replaces the bottom row of the table with gray cells. The user cannot edit the new gray cells. Also, the user is prevented from deleting the gray cell contents. (#1138)

• [Fix] The spreadsheet number column on the Share vs. Net Flow Rate dialog now is the standard width. (#1135)

• [Fix] The spreadsheet number column on the Variable Revenue/Unit Volume dialog now is the standard width. (#1136)

MView

• [Enhancement] Instead of just printing an error message, View Plots now calls Build Plots for the user when no plots have been built yet. (#1202)

• [Enhancement] The Edit Shifts dialog now supports the Open, Save, Fill Down, and Linear Transformation commands. (#1169)

• [Fix] Fixed a crash in MView when changing the configuration for a data set that is being displayed in an open plot. (#1341)

• [Fix] Fixed a drop down list box in the graphical edit window. (#1190)

• [Fix] Fixed sizing in the preferences dialog under the MView Data menu. (#1147)

• [Fix] Fixed the Select All (Ctrl+A) feature in the Edit Data dialog. (#1168)

• [Fix] Graphically editing an MView plot in real time now resets the plot and stops MFrac. (#1203)

• [Fix] Text files using semicolons (;) for a column separator now display properly in the Data Sets | Setup dialog. (#1338)

MProd

• [Enhancement] Increased the maximum time limit to 100 years (36,500 days). Previously, the limit was approximately 27 years (10,000 days). (#1340)

MPwri

• [Enhancement] Enhanced numerical solver algorithm for faster convergence. Run times for typical cases have been decreased by a factor of two or more without sacrificing numerical stability.

  As an example, the run time (on a test system) for the sample file “Thermal Poro-Elastic with Variable Injection Rate.mpwri” decreased from 150 seconds with Meyer 2003 SE to 48 seconds with Meyer 2005. (#1294)

• [Enhancement] MPwri now has the ability to process real-time data from MView. (#1275)

• [Fix] Fixed a crash in MPwri when the fluid loss model is set to Constant Coefficient. (#1277)

• [Fix] Once a Thermal/Water Profiles Plot (i.e. Water Flooding plot #4) was selected for a given multi-layer fracture (see Multilayer PWRI Case B.mpwri) the legend name would not change even if a different layer was chosen. For example, if the user selected fractures one and two, then changed the selection to just fracture one, the legend would still indicate both fractures. (#1140)

• [Fix] Do not display the browse (...) button when the user clicks on the Lithology Symbol column in the Thermal Stress dialog. (#1145)

• [Fix] When upgrading old MWFlood files in MPwri, enable the Input Filter Cake option if the fluid loss model in the old file was set to Dynamic. (#1137)

• [Fix] When upgrading old MWFlood files in MPwri, set the fluid loss model to Dynamic if it was set to Harmonic in the old file. MPwri does not support the Harmonic fluid loss model. (#1137)