How2 estmat fracture pressure ?

[m.darweesh]

I want ask about HOW2 ESTMAT FRACTURE PRESSURE for reservoir formation?
thanks for all

[nonfoo123]

If you've done a MiniFrac you can make a series of engineering analysis - refer to Ecnomides' book 'Reservoir Stimulation'. I believe you can find it in the forum.

If there's no MiniFrac available, check to see if you have Frac Gradient test through Wireline. This could be used as a first-estimate of Frac Pressure.

[m.darweesh]

If you've done a MiniFrac you can make a series of engineering analysis - refer to Ecnomides' book 'Reservoir Stimulation'. I believe you can find it in the forum.

If there's no MiniFrac available, check to see if you have Frac Gradient test through Wireline. This could be used as a first-estimate of Frac Pressure.

frist of all thanks for you
but i havn't any thang from that , and i need that to start inject in the water injction well ,that without injctivity test ,that what i'm asking ?

[nonfoo123]

You should at least have Frac Gradient. Check with the wireline logs you have, or conduct an injectivity test.

[m.darweesh]

OK, How knew the frac gradient from the log ?

[Yengineer]

A very rough estimate is 20kPa/m. 22kPa/m if you want to be on the safe zone.

[anihita]

One of the method to know about the fracture pressure of the well or sand is by "Leak Off Test" carried out during drilling.
more from following this link :

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[michaelchau]

you can use D exponent to estimate while drilling or use sonic to do before drilling

[temr]

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