Newpark Resources has been granted a patent for a process involving a treatment fluid with formic acid, lactic acid salt, and gluconic acid salt to prevent formate crystal formation in wellbores. The fluid allows formic acid to react with underground material, producing soluble calcium salts. GlobalData’s report on Newpark Resources 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 Newpark Resources, Treatment progress monitoring was a key innovation area identified from patents. Newpark Resources's grant share as of May 2024 was 46%. Grant share is based on the ratio of number of grants to total number of patents.

A recently granted patent (Publication Number: US11999898B2) discloses a novel process for acidizing wellbores using a treatment fluid comprising formic acid or a formic acid precursor, a suitable salt of lactic acid, and a suitable salt of gluconic acid. The treatment fluid is introduced into the underground formation, where the formic acid reacts with acid-soluble material to generate soluble calcium salts. The inclusion of salts of lactic acid and gluconic acid in the treatment fluid helps reduce the formation of calcium crystals, preventing the deposition of calcium formate crystals that would otherwise occur.

Furthermore, the patent claims that the concentration of the salts of lactic acid and gluconic acid in the treatment fluid is crucial, with a recommended concentration of at least about 0.6 M or higher. The process aims to stimulate production from the formation, remove filter cake, or scales, without the need for an acidic buffering agent or an alkyl glucoside surfactant in the treatment fluid. By preventing the formation of formate crystals and promoting the generation of soluble calcium salts, this innovative process offers a more efficient and effective method for acidizing wellbores, potentially improving overall well performance and productivity in the oil and gas industry.

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GlobalData’s Patent Analytics tracks patent filings and grants from official offices around the world. 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.