Question about Porosity calculation

Well Test Analysis, Pressure and Production Monitoring........ etc.

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explorator
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Question about Porosity calculation

Post by explorator »

I know that we can calculate porosity through core analysis "directory in the lab using rock sample" and well logging "Density log & Sonic log & Neutron log" , but I read that we can calculate porosity from well testing " is that right ??? "

Actually, I need more information about porosity calculation ????

I'd be grateful for your response
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FANARCO
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Post by FANARCO »

You can calculate the permeability from Well test.
Also, you can calculate Lamda and Omega for dual porosity from well test analysis
explorator
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Post by explorator »

Thanks for your reply ...

But, Actually I don't know what is the "dual porosity"
can you explain it more ... or if you have any book or source about porosity and its calculations specially using well test ...

Please recommend it to me

Thanks again
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FANARCO
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Post by FANARCO »

We usually use the term "Dual Porosity" when we have a formation with two porosity values in it. i.e. if you have a homogeneous sand formation with a porosity value of 15 % and there is another rock mixed with that formation which has another porosity for example 5 %. we call this a dual porosity model


Two porosity (Dual porosity): the rock exhibits dual porosity behavior stands for pseudo-steady state flow between fractures and the matrix). This behavior is characterized by the two additional parameters omega and lambda.


Please see the attached material (Well Test Analysis of Dual Porosity reservoir)
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reservoirengineer
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Post by reservoirengineer »

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FANARCO
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Post by FANARCO »

Good page reservoirengineer
explorator
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Post by explorator »

Thanks very much to U all for your concern .. and I'm grateful for giving me these material
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Post by batruna »

thaaaaaaaaaaaaaaaaanx
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