EnBW Energie Baden-Wurttemberg has patented a method for unblocking geological deep wells. The process involves pumping liquid from one well, treating it, and then using it to introduce carboxylic acids into a second well to restore its fluid absorption capabilities. GlobalData’s report on EnBW Energie Baden-Wurttemberg 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 EnBW Energie Baden-Wurttemberg, DC-DC converters was a key innovation area identified from patents. EnBW Energie Baden-Wurttemberg's grant share as of June 2024 was 44%. Grant share is based on the ratio of number of grants to total number of patents.
Method for unblocking geological deep wells using carboxylic acids
The patent US12018208B2 outlines a method for unblocking deep wells that have become obstructed by adsorbents. The process involves several key steps: first, liquid is pumped out of a blocked deep well and treated before being pumped into a second deep well. If the second well is also blocked, one or more carboxylic acids—such as monocarboxylic, dicarboxylic, or tricarboxylic acids—are introduced to facilitate the unblocking. Specific examples of carboxylic acids mentioned include ascorbic acid and citric acid. The method also allows for the displacement of brine from the deep well by the carboxylic acid, enhancing the effectiveness of the unblocking process.
Additional claims detail various techniques to optimize the method, such as inserting a probe into the deep well for targeted delivery of the carboxylic acid, and the potential for pressurizing the acid to improve its efficacy. The patent specifies that the adsorbent could be a lithium adsorption agent or a manganese oxide type adsorbent. Furthermore, it allows for the introduction of the carboxylic acid to occur separately from the treated liquid, either at the bottom of the second deep well or at the specific location where the adsorbent is causing a blockage. This comprehensive approach aims to effectively restore functionality to deep wells impacted by adsorbent materials.
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