Disclaimer: This is a user generated content submitted by a member of the WriteUpCafe Community. The views and writings here reflect that of the author and not of WriteUpCafe. If you have any complaints regarding this post kindly report it to us.

This doesn’t occur in the majority of geological versions as well as most petrophysical models. Rather we aquire NMR logs, core evaluation flow zones and stone types in efforts to utilize porosity to deal with permeability variations whilst dismissing that which we have to get a more affordable, more potent prediction of permeability. Hydrocarbon pore volume gives a superior default prediction of intergranular stone permeability across different reservoir types and distinct stone types compared to porosity, surely as well as saturation. The fluid zones test ought to be performed first to guarantee Sw ~ Swi. Each petrophysicist understands that fantastic stone comprises more hydrocarbon than inferior rock at the exact same capillary pressure (elevation ), but neglects to utilize it!

Additionally mercury data generally can’t be utilized for Sw-Height at a clayey, very low permeability rocks unless Cation Exchange Capacity and Clay Bound Water corrections are made. Throughout a mercury experimentation a water period isn’t present to moist the clays and delicate pores and the germ bulldozer will barge its way via fragile clay lined throats, therefore, unlike air-brine information, germ saturations don’t supply an analogue for all these reservoir saturations. Mercury data supplies pore throat size advice for stone typing. This absence of a water period is particularly significant here where Clay + Capillary Bound Water is a substantial portion of overall porosity, as indicated here from the 100% difference between the air-brine and germ data calculated HPV to the exact same reservoir elevation. Hence, regardless of the demand for a resistivity independent majority volume hydrocarbon these mercury data possess limited capacity to provide a usefully accurate dm-m scale complete rock storage capability in stones under about 30mD or higher CEC freshwater shaly reservoirs. Nevertheless, using MCIP data uncorrected for peppermint and clay bound water offers high HPV that’s possibly a more sensible explanation for its continuing usage.

All Integrated Petrophysics training available in whole, part or re-assembled. Delivered via Zoom or similar.  Live or canned sessions. These are the best petrophysics courses at the best rates

No Comments
Comments to: Capillary Pressure – Petrophysics Training & Courses

Trending Stories

Scope of Fashion Industry Fashion has consistently been recognised to push the limits. With new ideas and trends, fashion has a focus on the future. The fashion industry will see enormous innovation in the upcoming years as modern technology, and changing customer demands and trends will transform the industry. With such stimulation and competition, the […]
close

Log In

Or with username:

Forgot password?

Don't have an account? Register

Forgot password?

Enter your account data and we will send you a link to reset your password.

Your password reset link appears to be invalid or expired.

Log in

Privacy Policy

Add to Collection

No Collections

Here you'll find all collections you've created before.

Login