Use of a process fluid with an environmentally compatible biostabilizer in a geothermal borehole
AssigneeAgrana Beteiligungs-Aktiengesellschaft
InventorsFlorian Emerstorfer, Markus Omann, Johann Marihart, Marnik Michel Wastyn
Life of this patent
Estimating the term…
Abstract
The present invention relates to the use of a process fluid with an environmentally compatible biostabilizer in a geothermal borehole. The biostabilizer is characterized in that it comprises at least one organic acid, or a salt, alcohol or aldehyde thereof, wherein the at least one organic acid is selected from the group consisting of hop acids, resin acids, fatty acids and mixtures thereof. The biostabilizer is preferably a mixture of hop extract, rosin and myristic acid. The invention further relates to related process fluids and methods for producing the same.
Claims18
A method for reducing microorganisms within a geothermal borehole, comprising:
- providing water having a hardness of at most 20° dH (German hardness), adding an environmentally compatible biostabiliser to the water to form a process fluid,
- pumping the process fluid into the geothermal borehole, wherein the environmentally compatible biostabiliser comprises at least one organic acid or alcohol thereof and the at least one organic acid is selected from the group consisting of hop acids;
- and the process fluid has a hardness of at most 20° dH (German hardness).
A process fluid for reducing microorganisms within a geothermal borehole, comprising:
- water having a hardness of at most 20° dH (German hardness),
- an environmentally compatible biostabiliser added to the water to form the process fluid,
- the environmentally compatible biostabiliser adapted for use in the process fluid to reduce microorganisms within the geothermal borehole, the biostabiliser comprising at least one organic acid, or alcohol thereof, wherein the at least one organic acid is selected from the group consisting of hop acids;
- and the process fluid has a hardness of at most 20° dH (German Hardness).
A process for preparing a process fluid comprising an environmentally compatible biostabilizer adapted for use in the process fluid to reduce microorganisms within a geothermal borehole, the process comprising:
- providing water having a hardness of at most 20° dH (German hardness),
- adding an environmentally compatible biostabiliser to the water to form the process fluid, wherein the environmentally compatible biostabiliser comprises at least one organic acid or alcohol thereof, wherein the process fluid has a hardness of at most 20° dH (German Hardness), and wherein the at least one organic acid is selected from the group consisting of hop acids to obtain the process fluid.
Dependencies are inferred from the claim text.