Petrel Step by Step

[mshakeel44]

[link Point to another website Only the registered members can access]

[lorpinse]

downloaded thanks

[aqeel wahbi]

thanks

[mshakeel44]

How to build stratigraphic column in Petrel?

[ÃÈæ ÇáÚÈÇÓ]

in petrel can i ask petrel to present me k and Dz in A TABE for each well?

[DAH7542]

You can do this by using Petrel RE:
1. You'll be able to see Perm values under Models tab (Properties option), but you'll need to create DZ as a property, simply rigth click on Properties - Calculator - Name variable as DZ (or any name) - click on Geometry and select "Heitht () Height of the current cell". DZ property has been created.
2. Creating Properties as a WellLog: go to Input tab, select Wells, right click and go to Make logs tab, select Perm and DZ and click on Make logs.
3. Exporting well logs (Perm and DZ): under Input tab, rigth click on Wells once again, select "Export all well logs in folder". It's done.

[osimite]

Hi,

Pls can you tell me how to Use PETREL CALCULATOR to generate depth map (from polynomial equation).

I have a TZ chart and was able to get the equation of the polynomial curve, and wanted apply the equation on INTERPRETED TIME SURFACE using PETREL CALCULATOR,

Pls can you help me with this.
It is very urgent and important to me.

jethro_osim@yahoo.com

Thnx.

Overview of the Petrel - general what you can done and what you can not done with petrel
So for newcommers there is a hard decision what software to use .
For the moment on the market there several commercial packages available.
They are
Petrel from Schlumberger , Rms - form Roxar , Powermodel from Landmark .
There is also inhouse software like Gocad but in order to work on them you need to work in host company .
The most popular are Petrel form Schlumberger and Rms from Roxar .
It is up to you what to choose but i would advise you take Petrel and to understand the reason lets go to the past ...................
in 2002 Schlumberger acquired Technoguide company and there product Petrel . But who are this people standing for Technoguide company ?. Several Roxar employees for years were trying to enhance Rms with features they thought would breakthrough the product , but as usual management pay no attention to their efforts, and our heroes decided to quite . After they found Technoguide company and make they own package called Petrel . In 2 years they throw away Rms from key customer- that was there 1 win and sweet revenge....
So Petrel is enhance and more advance version of RMS - take the best .
So for what purposes you can use petrel.
1. Data base - it is quite reliable data base which can contain various type of data related to you project. The data of a various types, even you can store reservoir maps in jpeg format , how - will be shown later.
2. Log interpretation tool - within petrel you can make simple calculations on well logs , make statistics and make regression analysis calculations. Petrel does not have buildin petrophysical formulas but you can easily put them the only requirements for that you need to know them.
3. Geological interpretation tool - you can easily build cross-sections with certain logs to make geological interpretation of you horizons. It is more user friendly and easy to understand process
4. Fluid contact interpretation - making comment logs you can easily make cross section with all you well tests to see the depth of you well inflow
5. Making function - you can make correlation of 2 parameters and create function. This function can be used as trend or input data. This tool is quite useful as it allows you fast to find needed correlation. For example you need to see is there any function between depth and poro . In normal life you would need to open each log and put values of depth curve and poro curve to excel sheet . Here you just click 2 buttons and you get your correlation.
6. Making editing surfaces - You can make and edit surfaces using several algos , and make any statistic , volume and area calculation and different edit operations .
7. Loading and visualizing 2D and 2 D seismic - Loading 2D 3D seismic
8. Interpret seismic ( horizons, bodies) - several tools available for seismic interpretation , but as i said before i will pass this section as i am not professional in it
9. Building velocity models - making simple velocity models to convert from time to depth
10. Making fault models - Advance tool to create fault with vast import parameters , will be covered later
11. Making corner point grid - The corner point format assumes that grid cell corners are distributed along vertical, linear pillars. All grid cells have 8 corners, but these may not be geometrically distinct due to grid pinch-outs. Since the grids are allowed to contain vertical faults, all the eight corners are provided for each grid block.
12. Structural modeling - Making complex horizon and zones with possible pitchout zones
13 Facies modeling - facies are a body of rock with specified characteristics , so petrel has as deterministic and stochastic algos to model . Also it has algos to model environment of depositions like channels , delt, etc.
14 Petrophysical modeling - quite advance tool to model petrophysical parameters like NTG , Poro and Perm in inner well space , i will describe later available algos
15 Volume calculation - Calculate volumes of you model for any type of HC
16 Make upscaling - Upscaling process is when you try to change resolution of you new grid but take parameters from existing grid with different scale .
17 Make data analysis - statistical tools for searching ranges and making proper data destitution will be covered in detail in certain chapter
18 Make statistics - this is lack in RMS but vast in petrel you can take any statistic you want
16 Simulation ( i will not describe it as running all simulation in other simulator)
17. Importing and visualizing eclipse results - this is a keen point as Flowvis is peace of sh*t and completely stacks with big simulation models ( >400 k active cells) . You can easily import and view you results and print for example current pressure maps weighed on poro volume and get average reservoir pressure around your wells ( more advance compare to WBP9)
18. Making workflows - this is powerful tool that can speed up you process it several times , you can create export change rebuild surfaces points logs properties automatically . I will dedicate one full chapter were we will construct several easy workflow and will supply you with existing workflows.
19.Writing you own plugins - but this world is not perfect certain things you can not do in workflows or you can but the process is to slow. Plagins is the add in you can write in Ocean environment using Visual Basic . It is advance area so if any has Ocean for 2009 you are welcome to post it here .
What you can not do in petrel
There is now dedicated workflow to model saturation and this you need to create by yourself

[RockyCentero]

osimite,

Say F(x)=Y=2x+10 is your polynomiale function where Y is the depth you want to compute and x is your time surface, then you need to open-up the surface calculator within petrel and need to substitute the x with the time surface name and give a name to the Y which will be your newly generated depth surface, where it coud be something like this:
Depth_Surface=2*(Time_Surface)+10

Hope that will help

[osimite]

Thanks Buddy,
Pls how can I loate the surface calculator in Petrel? I have several seismic volumes< you recall if you are interpreting different surveys will be carried as example "survey1, survey 2, survey 3, etc" within the horizon interpretation. This i could only convert to points to eliminate the issue of sveral surveys within an Horizon interpretation.

However, I noticed that i need cannot locate the Surface Calculator. please could you guide me using the scenario i have now, through using the PETREL CALCULATOR?

you can send me email on jethro_osim@yahoo.com.

I am really grateful.

Thanks.

osimite,

Say F(x)=Y=2x+10 is your polynomiale function where Y is the depth you want to compute and x is your time surface, then you need to open-up the surface calculator within petrel and need to substitute the x with the time surface name and give a name to the Y which will be your newly generated depth surface, where it coud be something like this:
Depth_Surface=2*(Time_Surface)+10

Hope that will help

[RockyCentero]

Hi osimite,
Sorry for the confusion but Petrel language speaking when we say surface then most of the time we're refering to a 2D grid.
Anyway what you need to do first is to grid-up your seismic interpretation via the Make/Edit surface module that you'll find under the Utility package down below the process Tab.
Second, you right click into that newly generated time grid, select calculator, then you'll be back on track.
Cheers

[olevin]

thanks

[hatemlibya]

assalam alaykom

This is very good job , thank you .
I want to ask you about seismic interpretation on petrel , will you explain it tii us?

Hatem