Removal of Hematite Water-Based Filter Cake Using Hydrochloric Acid
نویسندگان
چکیده
The filter cake layer, which is essential to reduce the fluid invasion drilled formation, has been reported be composed mainly of weighting materials. complete removal this layer recommended restore rock permeability. Hematite one material that used create cake. However, cleanup hematite-based not studied thoroughly. objective work presented in paper investigate hematite water-based using hydrochloric acid. Numerous solubility tests were conducted study different factors affecting treatment such as temperature and particle size. Based on these results, duration acid concentration selected. high-pressure high-temperature filtration cell was build soak it solution at 100°C. Even though increasing with concentration, however, no significant improvement noticed above 12.5 vol.% HCl. size distribution a considerable effect treatment, found 86 wt.% for particles finer than 25 microns 47 sizes 75 microns, all 10 influence doubled when increased from 75°C rate decreased time reached maximum 16 hours taken duration. Using vol.%, 91 successfully removed. In literature comprehensive cakes lacking. This research provides new insights into address impact efficiency.
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ژورنال
عنوان ژورنال: Geofluids
سال: 2022
ISSN: ['1468-8115', '1468-8123']
DOI: https://doi.org/10.1155/2022/4924465