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PROCURVE.TXT
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1990-02-13
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DISCLAIMER OF LIABILITY
Lynx Petroleum Consultants, Inc. makes no warranty, express or
implied, or guarantee of any kind as to the contents of this
program and manual or results therefrom, including, but not limited
to, suitability for user's intended use, compatibility with user's
equipment, and freedom from infringement of any third party's
copyrights, patents or other proprietary rights.
Lynx Petroleum Consultants, Inc. shall not be liable to user or to
any other person or entity with respect to any liability, loss or
damage caused or alleged to be caused directly or indirectly by the
contents of this program and manual or results therefrom,
including, without limitation, consequential damages.
This program is sold for use on a single CPU. It may be copied
into machine readable or printed form for backup or modification
purposes only in support of its use on a single CPU.
Lynx PetroleumConsultants, Inc.
P.O. Box 1666
Hobbs, NM 88240
Ph - - (505) 392-6950
INDEX
Page
1. INTRODUCTION - - - - - - - - - - - - - - - - 3
2. MAKING YOUR BACKUP DISK
A. Two Drive System - - - - - - - - - - - - 4
B. Single Drive System - - - - - - - - - - 5
C. Hard Disk System - - - - - - - - - - - - 6
3. SYSTEM COMMANDS/GUIDE TO OPERATIONS
A. Enter or Edit Well Data - - - - - - - - 7
B. Load Well Data from Disk - - - - - - - - 8
C. Save Well Data to Disk - - - - - - - - - 8
D. Draw the Decline Curve - - - - - - - - - 8
E. Print Well Data - - - - - - - - - - - - 9
F. Clear for New Well - - - - - - - - - - - 9
G. Erase Well File from Disk - - - - - - - 10
H. Quit - - - - - - - - - - - - - - - - - - 10
4. GETTING STARTED WITH EXAMPLE 1
A. Loading a Previously Saved Well File - - 11
B. Enter or Edit Well Data - - - - - - - - 11
C. Saving a Well File to Disk - - - - - - - 11
D. Drawing the Decline Curve - - - - - - - 12
E. Printing - - - - - - - - - - - - - - - - 12
5. MENUS, DATA ENTRY SCREENS, AND SAMPLE PLOTS
A. Main Menu - - - - - - - - - - - - - - Fig 1
B. Production Data Entry Screen - - - - - Fig 2
C. Decline Curve Data Entry Screen - - - Fig 3
D. Single Width Decline Curve - - - - - - Fig 4
E. Double Width Decline Curve - - - - - - Fig 5
F. Print Data Entry Menu - - - - - - - - Fig 6
6. ERROR MESSAGES, POSSIBLE CAUSES,
AND WHAT TO DO - - - - - - - - - - - - - - 13
CHAPTER 1
INTRODUCTION
This manual is divided into 3 major chapters. Chapter One will
give you instructions on making your backup copy of this program
disk. It is strongly suggested that you do this before attempting
any other task with the program. Chapter Two is a general
discription of the system commands and is titled Guide to
Operations. You should thoroughly familiarize yourself with all
seven topics before actually starting your practice session in
Chapter 3.
Decline Curve construction has in the past been a tedious but very
necessary step in the evaluation of well performance and the
construction of reserve bases and economics. The curves drawn by
this program are limited by the resolution of the monitor and are
thus not true three cycle log plots. They should be useful for
spotting major trends when monitoring individual well or lease
performance and for the preparation of presentation graphics for
reserve reports, etc.
This is version 1.0 of the Production Curve program for the IBM-
PC. Every effort has been expended to make the program as useful
and as easy to use as possible. Lynx Petroleum Consultants, Inc.
will welcome comments and suggestions on program improvements.
Lynx will also attempt to keep all users informed of updates and
improvements to the program.
A 128K IBM-PC w/1-160K disk drive, DOS 2.x or 3.0, a color monitor
board and a color monitor are required to run the program. An
Epson MX-80, MX-100 or equivalent printer with graphtrax installed
is required for hardcopy printout of the decline curve.
CHAPTER 2
MAKING YOUR BACKUP DISK
A. TWO DISK DRIVE SYSTEM
Insert the DOS disk into Drive A (the left drive) and turn on the
monitor and computer. Type in the time and date as per DOS
instructions. When the DOS prompt (A>) appears insert a new blank
disk into Drive B and type
format b:/s
Press the ENTER key.
The message "Insert new disk for drive B and press any key when
ready" will appear. Press any key.
When formatting is complete, remove the disk in drive B and
insert a second blank disk into drive B. Type
y
The message "Insert new disk for drive B and press and key when
ready" will appear. Press any key.
When formatting is complete, type
n
to return to the DOS prompt.
Remove the DOS disk from drive A and move the disk in Drive B to
Drive A. Type
copy con autoexec.bat
Press the ENTER key.
Type
procurve.com
Press the ENTER key.
Press the F6 key.
Press the ENTER key.
When the copy operation has been completed, insert your Produc-tion
Curve program disk into Drive B and type
copy b:procurve.com a:
Press the ENTER key.
When the copy operation has been completed, type
copy b:example1.dcc a:
Press the ENTER key.
Remove the original Production Curve program disk from drive B and
store it as a backup when the copy operation has been completed.
Your new Production Curve program is now ready for use. Label it
and the data disk and proceed to Chapter 2.
B. SINGLE DRIVE SYSTEM
Insert the DOS 1.1 disk into Drive A (the left drive) and turn on
the monitor and computer. Type in the time and date as per DOS
instructions. When the DOS prompt (A>) appears type
format b:/s
Pres the ENTER key.
The message "Insert new disk for drive B: and press any key when
ready" will appear. Remove the DOS 1.1 disk. Insert a new blank
disk in Drive B. Press any key. When formatting is complete, the
message "Format another (Y/N)?" will appear. Type
y
The message :Insert new disk for drive B: and press any key when
ready: will appear. Remove your blank (formatted) disk from drive
B and insert a new blank into drive B. Press any key. When
formatting is complete, the message "format another(Y/N)?" will
appear. Type
n
to return to the DOS prompt (A>).
Label the first disk "Production Curve Backup". Label the second
"Production Curve Data".
Insert the "Production Curve Backup" disk into drive A. Type
copy con autoexec.bat
Press the ENTER key.
Type
procurve.com
Press the ENTER key.
Press the F6 key.
Press the ENTER key.
When the copy operation has been completed remove your disk from
drive A and insert the Production Curve program disk into drive A.
Type
copy a:procurve.com b:
Press the ENTER key.
The message "Insert new disk for drive B: and strike any key when
ready" will appear. Remove the Production Curve program disk and
insert the "Production Curve Backup" disk into drive A. Press any
key. When the copy is complete the message "1 File(s) copied"
will be displayed. Remove your disk and insert hte Production
Curve program disk into Drive A. Type
copy a:example1.dcc b:
Press the ENTER key.
The message "Insert new disk for drive B: and strike and key when
ready" will appear. Remove the Production Curve program disk and
insert the "Production Curve Backup" into drive A. Press any key.
When the copy is complete the message "1 File(s) copied" will be
displayed. Your new backup copy of the Production Curve program is
now ready for use. Store the original Production Curve program
disk in a safe place for use as a backup.
C. Hard Disk System
The following instructions will construct one subdirectory for your
Procurve program and data files. They ASSUME 1)that your hard disk
is designated Drive C and 2) that you will wish to run the Procurve
program from the Root Directory of your system.
With the DOS prompt (C>) on the screen type
cd\
Press the ENTER Key.
Type
MKDIR \procurve
Press the ENTER Key.
Type
copy con c: procurve.bat
Press the Enter Key.
Type
CD \procurve
Press the Enter Key.
Type
procurve.com
Press the Enter Key.
Press the F6 Key.
Press the Enter Key.
The message "1 File(s) copied " will be displayed.
Insert the Procurve program disk into Drive A (Floppy disk drive).
Type
copy a: procurve com c:\procurve\procurve.com
Press the ENTER Key.
The message "1 File(s) copied" will be displayed.
Type
copy a:example1.dcc c:\procurve\example1.dcc
Press the Enter Key.
The Procurve program is now installed on the hard disk.
To run type
Procurve
Press the ENTER Key.
CHAPTER 3
GUIDE TO OPERATIONS
A. ENTER OR EDIT WELL DATA
From the MAIN MENU type "E" to enter or edit well data. The screen
shown in Fig. 2 will appear. There will be a blank in the Wellname
position and zeroes in all other positions if a well record has not
been entered manually during this session or loaded from disk. The
cursor will be positioned at Wellname.
The first data item will be Wellname. It may be any combination of
letters and numbers (both caps and lower case are allowed) with no
spaces or punctuation marks. Invalid characters will signal the
user with a "beep". The Wellname may be from 1 to 8 characters in
length. The BACKSPACE key may be used to correct errors before the
ENTER key is pressed. If well data has previously been entered
manually or loaded from the disc during this session then the
Wellname data entry position will contain this data. Press the
ENTER key when you are satisfied with your entry. You may change
the Wellname data item any time after you have pressed the ENTER
key by pressing the HOME key to relocate the cursor to the Wellname
position.
The second data item will be Beginning Year. It will consist of
four numbers with no spaces or punctuation marks. Invalid
characters will signal the user with a "beep". The BACKSPACE key
may be used to correct errors before the ENTER key is pressed. If
well data has previously been entered manually or loaded from the
disk during this session then the Beginning Year data entry
position will contain this data. Press the ENTER key when you are
satisfied with your entry. You may change the Beginning Year data
item any time after you have pressed the ENTER key by pressing the
HOME key and the ENTER key once to relocate the cursor to the
Beginning Year position.
All subsequent data items consist of production data. The maximum
capacity of the program is 10 years of production data. During
production data entry, the cursor control keys
(UP,DOWN,LEFT,RIGHT), and the PGUP and PGDN keys are activated as
well as the BACKSPACE and ENTER keys. Data items may be up to 6
numbers in length with no spaces or punctuation marks. Invalid
characters will signal the user with a "beep". The BACKSPACE key
may be used to correct errors before the ENTER key is pressed. The
four cursor control keys (UP,DOWN,LEFT,RIGHT) may be used in lieu
of the ENTER key. They may also be used to reposition the cursor
anywhere on the production data entry screen.
After the last production data item on a page (year) has been
entered the program signals the user with a "beep". the PGDN key
may now be pressed to view the screen for the next year. The
previous year screen may be obtained by pressing the PGUP key. The
HOME key will pageup to the beginning year and position the cursor
to the Wellname data entry position. The enter or edit well data
mode is terminated by pressing the F1 key. This returns the user
to the MAIN MENU.
B. LOAD WELL DATA FROM DISK
The Load Well Data from Disk command is used to retrieve one of
your previously stored well records from the data disk. From the
MAIN MENU type "L" to execute this command. The computer will
respond with the question "Will your data disk be located in Drive
A, B or C?". Your response must be an "A" (indicating the left
drive) a "B" (indicating the right drive), or a "C" (indicating
hard disk) followed by the ENTER key. The computer will then read
the file directory on the designated disk and ask you for your
selection. It is not necessary for you th enter the ".DCC"
extension to the file name as this is handled internally. Press F1
to return to the MAIN MENU after the file is read.
C. SAVE WELL DATA TO DISK
The Save Well Data To Disk command is used to store a well record
to the Data disk. From the MAIN MENU type "S" to execute this
command. The computer will respond with the question "Will your
data disk be located in drive A, B or C?". Your response must be
an "A" (indicating the left drive) a "B" (indicating the right
drive), or a "C" (indicating hard disk) followed by the ENTER key.
The computer will then read the file directory on the designated
disk and ask you for the File to Save. If the Wellname is correct,
simply press the ENTER key. If not, the Wellname may be entered
using the same rules as outlined in ENTER OR EDIT WELL DATA (files
are stored by Wellname) Press the ENTER key and the well record
will be stored.
Press F1 to return to the MAIN MENU.
D. DRAW THE PRODUCTION CURVE
From the MAIN MENU type "D" to execute this command. The screen
shown in Fig. 3 will appear. Answer each question pressing the
ENTER Key when you are satisfied with your response. The "Curve
Scaling Factor" is the top scale on the three log cycle Y axis.
Your options here are 1000000, 100000, 10000, 1000, 100. Any other
response will result in a "DATA ERROR" error message. If an
invalid response message occurs, simply type in the correct data
and press the ENTER Key to proceed. The Up Arrow cursor control
Key may be used to edit any data item if you discover an error
after you have pressed the ENTER Key.
Press the F2 key to plot. The computer will plot and extrapolate
the curve according to the parameters assigned in Fig. 3. The
decline rate projected is in % per year.
NOTE: ONLY THOSE POINTS BETWEEN CURVE START(YEAR/MONTH) AND CURVE
END(YEAR/MONTH) WILL BE USED AS DATA FOR THE EXTRAPOLATION. OTHER
DATA THAT MAY BE PRESENT IN THE FILE WILL BE IGNORED.
When the curve has been drawn the message "Do You Wish to Print?"
will appear at the upper right hand corner of the screen.
NOTE: Your printer must be an EPSON MX-80, MX-100 or equivalent
with the graphics option installed to successfully print the curve.
A "Y" response will signal the user with the question "Double
Width?". An "N" response returns the user to the CURVE DATA ENTRY
MENU. Please see Fig. 4 and Fig. 5 for comparisions of single and
double width printouts. You will be returned to the CURVE DATA
ENTRY MENU when printing has been completed.
E. PRINT WELL DATA
From the Main Menu type "P" to execute this command. The screen
shown in Fig. 6x will appear. Answer each question pressing the
ENTER key when you are satisfied with your response. If an invalid
response message occurs, simply type in the correct data and press
the ENTER key to proceed. The Up Arrow cursor control key may be
used to edit any data item if you discover an error after you have
pressed the ENTER key.
Press the F2 Key to print. The computer will print the production
data to the screen according to the parameters assigned in Fig. 6.
NOTE: ONLY DATA IN THE INTERVAL FROM START(YEAR/MONTH) TO
END(YEAR/MONTH) IS USED AS THE BASIS FOR THE PRODUCTION FORECAST.
OTHER DATA THAT MAY BE PRESENT IN THE FILE WILL BE IGNORED.
The annual totals for data in the interval are printed first. If
the data ends at any time other than the end of a year, monthly
production projections are calculated for the balance of the year
and added to the actual figures to arrive at a single actual
production number. Sebsequent annual projections, if requested,
are then calclated and printed. Projected numbers are identified
with an asterisk (*). Oil and water are printed in BBLS/Yr. Gas
is printed in MCF/Yr.
Press Shift-PrtSc if you wish to send the screen output to the
printer.
Pressing any character key will return the program to the PRINT
DATA ENTRY MENU (fig. 6).
F. CLEAR FOR NEW WELL
From the MAIN MENU type "C" to execute this command. The Clear for
New Well command is used to clear the computer memory of all well
data. NOTE: IT DOES NOT AFFECT ANY WELL DATA STORED ON YOUR DATA
DISK. You will be returned to the MAIN MENU when the clear
operation has been completed.
G. ERASE WELL FILE FROM DISK
The Erase Well Data from Disk command is used to ERASE one of your
previously stored well records from the data disk. From the MAIN
MENU type "W" to execute this command. The computer will respond
with the question "Will your data disk be located in Drive A, B or
C?". Your response must be an "A" (indicating the left drive) a
"B" (indicating the right drive), or a "C" (indicating the hard
disk) followed by the ENTER key. The computer will then read the
file directory on the designated disk and ask you for your
selection. It is not necessary for you to enter the ".DCC"
extension to the file name as this is handled internally. Press F1
to return to the Main Menu after the desired file(s) have been
erased.
H. Quit
This command exits the program and returns the user to the DOS
prompt (A>, B>, or C>).
CHAPTER 4
GETTING STARTED WITH EXAMPLE 1
------------------------------
Your program disk contains a sample production record titled
example1. You have now created the backup disk according to the
directions in Chapter 1 and read through the Guide to operations in
Chapter 2. Let's go through some examples of the program's
operation before trying some of your own production records.
A. LOADING A PREVIOUSLY SAVED WELL FILE
Insert your program disk in drive A (the left drive) and turn on
the computer (or press CTRL ALT and DEL to system reset). Hard disk
systems maybe started by typing "Procurve " <ENTER> from the root
directory of Drive C. The Main Menu will appear on the screen.
Type "L" and press the ENTER key. Since Example1 is saved on the
program disk you will type either an "A" or a "C" and press ENTER
to tell the program where to look for the well file. After "File
to Load?" type "example1" and press the ENTER key. When the well
file has been loaded you may press F1 to return to the MAIN MENU.
B. ENTERING WELL DATA
From here type "E" to "Enter or Edit Well Data" and press the ENTER
key. The wellname (Example1), beginning year (1981), and one year
of production data will appear on the data entry screen. Press the
PgDn key two times to display the data for the year 1983. Now
press the down arrow key until the cursor is positioned at the
first month that contains no data. Add the following three months
of data pressing the ENTER key after each entry.
300 600 60
2750 580 70
305 560 70
Whoops, 2750 should be 275. Press the up arrow key twice, retype
275, and press the ENTER key. That's got it fixed. Press the F1
key to return to the MAIN MENU.
C. SAVING A WELL FILE TO DISK
Let's save the changes we've made to example1. Type "S". Insert a
blank (formatted) data disk into drive B (the right drive). Type a
"B" and press the ENTER key. If you do not wish to change the name
of the well file simply press the ENTER key again. Press F1 to
return to the MAIN MENU when "Save Completed" flashes at the lower
right hand corner of the screen. Hard disk users may type a "C" to
re-store the well record to the hard disk.
D. DRAWING THE DECLINE CURVE
Type "D". 1000 will center the curve on a three cycle log scale so
type 1000 and press the ENTER key. Since Example1 has less than 5
years of data, let's set up a 5 year graph. Type "5" and press the
ENTER key. The other four pieces of required data are beginning
year (1981), beginning month (1), ending year (1984), and ending
month (6).
Now you will be asked if you wish to have Oil, Gas and Water
plotted and extrapolated. Answer "Y" or "N" as appropriate,
pressing the ENTER key after each answer.
The question "Do you wish to print? (Y or N)" will appear in the
upper right hand corner of the screen when plotting has been
completed. Press the "Y" or "N" key as appropriate. The "Do you
wish to print? (Y or N)" will now be replaced with the question
"Double Width? (Y or N)". Press the "Y" or "N" key as appropriate.
the "N" response will print a single width curve as is shown is
Fig.5-4. The "Y" response will print a double width curve as is
shown in Fig.5-5.
You will be returned to the CURVE DATA ENTRY MENU when printing has
been completed. Press F1 to return to the MAIN MENU.
E. PRINTING
Type "P" to bring up the "PRINT DATA ENTRY MENU". This time we want
the production forecast to be based on data in the file from
January, 1981 thru May, 1983. Type in beginning year (1981),
beginning month (1), ending year (1983), and ending month (5).
Answer "Y" to each of the four questions "Oil
Printed?","Extrapolated?","Gas Printed?", and "Extrapolated?".
Answer "N" to the "Water Printed?" question.
The last question will ask for the number of years to extra-polate.
The maximum number allowed is 20 and 20 is the default if no number
is specified.
Press F2 to print to screen.
Press Shift-PrtSc to send the screen output to the printer.
Pressing any other character key will return
the program to the "Print DATA ENTRY MENU".
CHAPTER 6
ERROR MESSAGES, POSSIBLE CAUSES,
AND WHAT TO DO
Disk Operations:
Message What to Do
Not Ready Error Reading Insert data disk on Drive ___ or
Drive ___ close the drive ___ door and
Abort, Retry, Ignore press "R".
FILE NOT FOUND The referenced file is not on the
disk. Check your spelling. Check
to make sure that the directory
contains the file that you wish
to load.
DISK DIRECTORY FULL Your Data Disk directory is full.
Insert a new formatted Data Disk
into Drive ___ and try again.
DISK WRITE ERROR or There may be insufficient space on
UNDEFINED WRITE ERROR the disk for the file you are try-
ing to save. The data disk may be
bad. Insert a new formatted Data
Disk into Drive ___ and try again.
Print Operations:
PLEASE CHECK PRINTER Turn Printer on or Press the
printer outline bu tton.
Data Entry Operations:
DATA ERROR The last data item entered was out
of range. Input the correct data
and press the <ENTER> key.