Talk:Nuclear magnetic resonance in porous media

Title

I think a better title would be NRM (porous media) or Porous media NMR. What do you think? Headbomb {^ταλκ_{κοντριβς} – WP Physics} 04:13, 29 May 2009 (UTC)

I prefer the current title compared to these two alternatives. --Berland (talk) 11:50, 29 May 2009 (UTC)

According to the Wikipedia naming conventions, the title of the article should be "Nuclear magnetic resonance in porous media". WikiDan61^ChatMe!_ReadMe!! 12:16, 29 May 2009 (UTC)

Thanks for checking this out, I moved the page accordingly. --Berland (talk) 13:32, 29 May 2009 (UTC)

Improve references

The two references given on this page (as of this writing) are not sufficient to verify the theory presented. The vast majority of this page discusses the theory of NMR as it pertains to porous media -- if this is not referenced from a published source, it might be construed as original research. WikiDan61^ChatMe!_ReadMe!! 15:17, 2 June 2009 (UTC)

I agree and I'm working on it by adding references Olivierlopez1 —Preceding undated comment added 07:44, 3 June 2009 (UTC).

I think that now enough references are on the page Olivierlopez1 —Preceding undated comment added 08:56, 3 June 2009 (UTC).

Agreed. My compliments on an excellent new article! WikiDan61^ChatMe!_ReadMe!! 12:27, 3 June 2009 (UTC)

Some comments

In the section "Theory of relaxation time distribution in porous media" the self-diffusion is listed together with the other variables in the equation, but it is not used in the equation.

Agreed and corrected apparently. Olivierlopez1 (talk) 07:32, 14 August 2009 (UTC)

In section "T2 relaxation" it's said "that cosθ must be distributed uniformly in the range (-1,1)." I guess it is θ that should be distributed uniformly in the range (0,2pi). —Preceding unsigned comment added by 96.22.180.253 (talk) 16:50, 9 August 2009 (UTC)

Agreed also it is more correct to use angle rather than cosinus to define the variation, but the range should be the one defined as (0,$\pi$) not (0,$2\pi$) Olivierlopez1 (talk) 07:38, 14 August 2009 (UTC)

In section "NMR permeability correlations" it's said that for small pores or large ρ, the bulk relaxation time ($T_{2b}$) is small and can be dropped from the equation. But the term dropped is $1/T_{2b}$ and only can be dropped if $T_{2b}$ is very large. I assume that what they are trying to say is that for small pores (what implies that ($S/V$ is large) or large ρ, $\rho S/V$ is much large than $1/T_{2b}$ and can be dropped. So the equation can be approximated by: ... —Preceding unsigned comment added by Alejandro Lacivita (talk • contribs) 13:47, 29 May 2010 (UTC)