Christopher Michael Werner

US Patent:

20060027365, Feb 9, 2006

Filed:

Aug 2, 2005

Appl. No.:

11/194640

Inventors:

Thomas Park - Tallahassee FL, US
Christopher Werner - Tallahassee FL, US

Assignee:

Applied Exploration & Research Group, Inc. - Tallahassee FL

International Classification:

A47B 43/00

US Classification:

166279000

Abstract:

Methods for in situ formation of a replacement reaction crystalline coating, acting as an impermeable barrier along grain surfaces, pore throats or dissolution cavities of rocks containing a percentage of free reactive cations and/or carbonate-containing compounds. This replacement crystalline coating is comprised of fluoride compounds, such as fluorite (CaF), fluorapatite (Ca[F(PO)]) and sallaite (MgF). The coating or lining is capable of sequestering mobilization and/or movement of radionuclides, metals, metalloids and other naturally occurring undesirables from the media, rock or strata, while allowing water, fluids and other compounds to pass through pre-existing or induced permeability. The sequestration is achieved by shielding the media, rock or strata grains and/or matrix from interacting with pore fluids, hence greatly reducing solubility, dissolution, geochemical leaching and/or other chemical reactions from proceeding. The crystalline coating will have minimal affect on existing natural or induced permeability of the carbonate-containing rock, formation or strata. The methods can be utilized in subsurface reservoirs and/or aquifers.