Chapter_7
This chapter will be dedicated for building schedule section in Eclipse Schedule and then in chapter _8 we will make it manually in eclipse
Note that i personally do not use Schedule so if i will explain something not clear-ask
Appendix 1 will describe how fast plan and add vertical wells in petrel for simulation purposes
This chapter covers Input data which are
2. Production data
1. Event data
3. Trajectory data
4. Grid data(Egid)
5. Property data (Init)
Attachment data
1. Eclipse model
2. Excel file File with ev and volume data
And Type of schedule files and Type of errors you may encounter during building section
To do !!!!!!!!!!!!!!!!!!!!!!!!!
1.Download Egpet_net_v2.xlsm and put it to data folder . Open file and press macro button. This file add link to schedule file in Schedule folder[link Point to another website Only the registered members can access]
2.Download schedule.xlsm and put it to schedule folder . Open file and press 2 macro buttons and sheets vol and ev . In the folder you will see 2 text files with vol and ev data
3.Export from Gmodel well connection data and put it to schedule folder or download it from link below
4.Run Sim model in NOSIM mode and generate INIT and EGRID files
or download them from this folder
[link Point to another website Only the registered members can access]
[link Point to another website Only the registered members can access]
[link Point to another website Only the registered members can access]
[link Point to another website Only the registered members can access]
[link Point to another website Only the registered members can access]
[link Point to another website Only the registered members can access]
[link Point to another website Only the registered members can access]
[link Point to another website Only the registered members can access]
Again i will explain shortly if you will have nay question ask me in thread
Lets quick describe input data which was not covered yet
1. Event data
Event data shows to eclipse all events that happen in reservoir by particular well . The detail description of all events can be found on page 309 of manual sche_ug.pdf which can be found on following link
[link Point to another website Only the registered members can access]
but briefly they are
All names are reserved so if you will use pirfaration instead of perforation Schedule will give you an error.
For building section we will need two of most important ones
1. perforation - means perforation))) or opens connection cell to wellbore
2.plug - means shut or close cell in defined interval from connection to well
For giving idea to Schedule what well and when open or close we need to give info on following
1. Well name, Event type, Date of events, Interval of event, Diameter of wellbore, skin
NOTE!!!!!!!!!!! That for perforation you need to give top and bottom of perforation interval, for plug data only top because all cells below will be shut so be careful with plug data.
Detail event file description and format can be founded on schedule.xlsm file
2.Production data
For eclipse you need to give production of each well ( vol file).
First you need to select time step you will use in your runs. By common practice for history matching period used monthly period for long terms forecast runs yearly, but again it is all depends on your task
NOTE!!!!!!!!!!!!! that eclipse reports all phases (oil,water,gas) in m3 not tons so your observed production should be in m3
In our example we will use Monthly report
For Schedule you need to supply following
1.Report period
2. Well name
3. Date
4. Actual Oil production rate (m3/month)
5. Actual Water production rate (m3/month)
6. Actual Gas production rate (m3/month)
7. If well injector injection rate (oil, water, gas)
8.Uptime - fraction actual days well worked in period/calendar days
NOTE!!!!!!!!!!!! History measurements of bottom hole pressure not covered in this chapter but will be in next chapters as it is keen data during history matching o process
All this data is in Vol sheet of schedule.xlsm
For getting two files Press Macro buttons in Sheets and two files will appear in directory of excel file
The scenario of history section is following
Production start on February 2008 then Field working till 1 of January 2010
well_3 as it perforated almost in contact zone will be switch from producers to water injector
NOTE!!!!!!!! In eclipse it is the rule that production by date means production till this date !!!!
for example if you put 1 January 2009 and production 100 m3 it means that by 1 of January well produce 100 m3
Files required for schedule section
1. event.ev
2. volumes.vol
3.well connection file ( conection.trj)
4.init file
5.egrid file
Now we ready to build schedule section.
Start schedule form eclipse
You will return to this window
Menu window log message window
On menu window Press File , Save as
Choose file name and safe it in schedule directory - it is project file then you can direct access it.
Then choose system you work with i use metric so do this
Press Save
On menu Press Import, Production History, Replace
Choose created previously volume.vol file in schedule directory
On menu press Import, Events, Replace
Choose created previously event.ev file in schedule directory
Save Project
On menu press Grid, Single Porosity
Choose EGRID file in DATA directory and press open
On menu press Well Locations, Trajectory File
Choose well connection file exported from petrel and press open
Save project
On menu press Properties
Choose INIT file in DATA folder and press open
Press Save .
On this step we finish data import ( except bottom hole pressure which will be covered later)
On menu press data, Item List
This list will give all information you load to Project
So lets make Schedule section
For doing this you need 1 create Control Network
On menu press data, Control network
You will be return to
So here it is Group structure of your wells
The upper grope is Filed
Select filed by pressing mouse on it
And press this button
Put new name in the box let say history_match
Press Ok new grope will appear under Field
Now select pressing CTRl button following wells
And drag them under History_match
Check Filed and press right mouse button
Choose Show Events
You will retern to event control list of all groups which are belong to Filed
As we doing history section you need to choose control for Producing and injecting wells
On left menu Choose WCONHIST
On right you have option for now
Leave everything as is only change Phase to ORAT and press Apply
this is what simulator will be keen to produce first in our example all wells first will be forsed to produce declared oil rates and only then all other phases will be calculated base on phase relative permeability's
On left meny Choose WCONINJE
Choose rate here
it is mean that simulator will increase injection pressure unless it will be able to inject declared volumes of liquid press Apply
So we ready to export schedule section
On menu press Export, Schedule section
name it hm.sch and press save
If you make everything correct then simulator will report 0 errors but in our case we have 164 errors lets see what is problem
NOTE !!!!!!! The main errors are wells has flow but no grid connection it is mean either well perforates inactive cell or you production starts before you connect well to grid
open hm.sch in text editor
In our example Production started but well is not connected to the grid
Let see where problem comes from
As you can see my wells has flow but no grid connection so we need check Perforation intervals
If you will carefuly look to item list you will notice that wells duplicates WELL_1 and Well_1 are the same but for schedule they are different,
NOTE!!!!!!!!!!!! names of wells should be the same including Caps in vol ev and trj files
In excel file write all wells name in production has capita letters from this
to this
and press Export_vol
Re import vol data to schedule(replace)
Remove all wells from grope History_match by selecting them and pressing this button
Drag all Well_* to groupe
Save project and press export -0 errors!!!!!!!!!
So now you can Make schedule section !!!!!!!!!!!!!!!!!!
Appendix 1
Making project wells in Petrel
Open test petrel project
Press this
In input folder check all wells and press this
So now i want to place well in random order
Go to Processes and double click on Make edit polygons
on right meny press this and start to draw polygon
like this one
no go to input data you will find ny polygon1 right click on it and choose spreadsheet
You will be return to polygon spreadsheets
Copy them and prepare in excell following table
then copy this and paste to txt file
save it
Then do this
Choose this
Choose file
make this settings and press ok for all
Now you get all you project well quick and fast - enjoy!!!!!!!!!!
Link to full chapter with pictures[link Point to another website Only the registered members can access]
Reply With Quote
Bookmarks