AGRANA Beteiligungs-AG’s patent involves using an environmentally friendly biostabilizer in geothermal boreholes to reduce microorganisms. The method includes adding organic acids to water, creating a process fluid with low hardness, and pumping it into the borehole. The biostabilizer comprises hop acids, resin acids, and fatty acids. GlobalData’s report on AGRANA Beteiligungs-AG gives a 360-degree view of the company including its patenting strategy. Buy the report here.

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According to GlobalData’s company profile on AGRANA Beteiligungs-AG, was a key innovation area identified from patents. AGRANA Beteiligungs-AG's grant share as of February 2024 was 51%. Grant share is based on the ratio of number of grants to total number of patents.

Biostabilizer method for reducing microorganisms in geothermal boreholes

Source: United States Patent and Trademark Office (USPTO). Credit: AGRANA Beteiligungs-AG

A recently granted patent (Publication Number: US11884870B2) outlines a method for reducing microorganisms within a geothermal borehole. The method involves providing water with a hardness of at most 20° dH and adding an environmentally compatible biostabilizer, which includes organic acids like hop acids, to form a process fluid. This fluid is then pumped into the borehole, acting as a drilling fluid. Additional additives such as defoamers, gelling agents like biopolymers, and water-softening agents can be included in the process fluid to enhance its effectiveness.

Furthermore, the patent claims detail the composition of the biostabilizer, which may consist of resin acids, fatty acids, or hop acids like humulone and lupulone. The process fluid can also incorporate antimicrobial agents and additional biostabilizers for improved performance. The hardness of the fluid is crucial, with variations ranging from 5° to 20° dH, impacting its ability to reduce microorganisms effectively. The patent also covers the preparation of the process fluid, emphasizing the importance of using environmentally compatible biostabilizers to maintain geothermal borehole integrity while minimizing microbial presence.

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GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.