Abstract
Energy recovery medium for insertion into a ground hole in a ground comprising a recoverable energy carrying medium, wherein the energy recovery medium comprises a base liquid, a carbohydrate-based thickener mixed in the base liquid, a salt dissolved in the base liquid and configured for increasing a density of the base liquid, and proppant particles dispersed within the mixture of the base liquid, the thickener and the salt.
| Original language | English |
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| Patent number | US2016230081 |
| IPC | E21B 43/ 267 A I |
| Priority date | 18/09/14 |
| Publication status | Published - 11 Aug 2016 |