Reservoir characterisation using spatial analysis

[aliali]

Any one have good material on reservoir characterization using spatial analysis ,
i am doing my graduation project on this point as astart to learn how to make the model in petrel!

thanks

[Francisco1972]

I have the introduction and facies modelling books of petrel. Those books explain you how to use the software using the data of a real oil field (gulf ...).
The data about this oil field is in the slb website. Let me know if you have those books (if not I would scan them for you).
If you practice the software using the real data and follow the manual step by step you will have and Idea of what you need to built your model (well data, petrophysical evaluation of the wells (if you have wells, some times is an exploratory oil field and you just have seismic data to predict the geometry of your reservoir).

Let me show you some guidelines to built a model (static model o geological model).

I prefer to use petrel as and integration software to build the static model of a reservoir and not like an interpretation software.

The disciplines you need to integrate to have the static model of a reservoir:

Geologic data:Core data, core description, petrophysical conventional analysis of cores (porosity, permeability, water saturation, oil saturation), well tops (correlation).

Petrophysical data: Petrophysical evaluation of your wells (porosity permeability, water saturation, oil saturation) this data must be compared and corrected with the real data from your cores (if you have cores in your wells).

Structural data: The structural model of your reservoir could be made just using well data if you don´t have seismic data. If you have seismic and this seismic is in time the procedure is a little more complex and you will need the help of a geophysics, because you need to interpret the main horizons of your reservoir in time and them using the checkshots (a well log to calibrate seismic) convert the main horizonts to depth).

If you have all this data:

The next step is to build the 3D model of your reservoir. In this point is necessary to know if you have a 3D seismic survey. Because depending of that you could use a seismic attribute calculated from this data to guide the property of the units of your reservoir (porosity, permeability, water saturation, oil saturation), or if you are going to use the facies maps to guide
the properties of your reservoir. In the last case statistic is the tool to fill the interwell space and not a real data like seismic attribute.

So depending of the data you have in your oil field you will have an explanation (let me know what you have). If you are going to make a 3D model with petrel be careful about the matching of the final model with the well data.. Some times the algorithms of this softwares are not obligated to respect the data in wells so the final model do not match the wells and the next step (dynamic modeling) will be a disaster.

[Pablocien]

Dear Francisco,

I'd like you scan these books for all forum.

Thanks

[aliali]

first of all thanks alot francisco for the helpful knowledge,
many ppl told me i should study reservoir characterization and spatial correlation to understand what is a model and to know the basic statistical uses in the model, then i shall learn the steps on petrel to create the model,
so i need any course related to reservoir characterization and the steps that we do on petrel to create the model, and areal data to work on it if possible, so i can use it as apractical example in my graduation project

and plz scan the pages for us

thanks

[aliali]

I Found these, check them and tell me if they are fine or the1 u have is better

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

[mohamedkfupm]

Dear Francisco1972

i would like to thank you for your great information about how to construct a 3D geological model , i whish you have enough experience on petrel so you can help me to build a 3D model for my reservoir ? . i have 3D seismic + well log data+ core data .

another question is how to visualize seismic cube ( in 3D ) in petrel ? because it shows to me only inlines and crosslines .

best regards