[ RadSafe ] Geology Type Question

Tue Nov 22 12:50:12 CST 2016

There are even more similarities. Mine waters (certainly from Polish) coal
mines bear a similar naturally occurring radionuclide fingerprint as gas/oil
industry produced water.

Kind regards,
Gert Jonkers
-----Oorspronkelijk bericht-----
Van: radsafe-bounces at health.phys.iit.edu
[mailto:radsafe-bounces at health.phys.iit.edu] Namens KARAM, PHILIP
Verzonden: dinsdag 22 november 2016 17:00
Aan: The International Radiation Protection (Health Physics) Mailing List
Onderwerp: Re: [ RadSafe ] Geology Type Question

You see something similar in the high-background area in Ramsar Iran.
Groundwater circulates between the surface and subsurface, where the
radioactivity is. By the time it gets to depth it's lost pretty much all of
its oxygen, so it can't dissolve out the uranium. But the radium will go
into solution, and it's brought to the surface with the rest of the
mineral-laden water. Once there, the minerals precipitate out to form
freshwater limestone (travertine) with the radium substituting for calcium
in the mineral structure. Some rocks there are as much as 10-11 million
pCi/gm and the soils derived from these rocks are in the thousands of
pCi/gm.

So - same geochemistry, just a different setting.

Andy

P. Andrew Karam, PhD, CHP
NYPD Counterterrorism Division
(718) 615-7055 (desk)
(646) 879-5268 (mobile)

-----Original Message-----
From: radsafe-bounces at health.phys.iit.edu
[mailto:radsafe-bounces at health.phys.iit.edu] On Behalf Of Dan McCarn
Sent: Tuesday, November 22, 2016 8:36 AM
To: The International Radiation Protection (Health Physics) Mailing List
Subject: Re: [ RadSafe ] Geology Type Question

Hi Mike:

Uranium has 2 common valence states in geologic media: +4 and +6; chemically
reduced (+4) and oxidized (+6) which have 8 (or so) orders of magnitude
differences in aqueous solubility. The reduced phase - commonly uraninite
(UO2) - has far less aqueous solubility than the oxidized phase. Oil & gas
deposits are, by definition, methanogenic and strongly reducing, thus little
or no soluble uranium is present in connate waters. 

Thorium has very little aqueous solubility. 

So what ends-up on pipes as NORM are the decay products. 

Dan W McCarn
108 Sherwood Blvd
Los Alamos, NM 87544 USA
+1-505-670-8123
Sent from my iPhone

> On Nov 22, 2016, at 00:46, Cowie, Michael I <michael.cowie at aramco.com>
wrote:
> 
> Classification: Saudi Aramco: Company General Use
> 
> 
> Looking for some assistance or pointing in the correct direction. I am
interested to the reason/s why Uranium and Thorium are not seen in NORM
associated with oil/gas production. Also K40 is it possible to enhance its
concentrations by such processes that are used in oil/gas recovery?
> 
> Your assistance is greatly appreciated.
> 
> Mike
> 
> This email has been classified as Saudi Aramco: Company General Use by
Cowie, Michael I on Tuesday, November 22, 2016 10:46:14 AM.
> 
> 
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