Exploring Modified Alendronic Acid as a New Inhibitor for Calcium-Based Oilfield Scales
نویسندگان
چکیده
Organophosphorus compounds are well known as oilfield scale inhibitors. Earlier work showed that a series of new and well-known bone-targeting drugs incorporating non-toxic bisphosphonates (BPs) (PO3H2–C–PO3H2) gave good inhibition performance against calcite based on produced water from the Heidrun oilfield, Norwegian Sea, Norway. However, these chemicals only moderate calcium compatibility activity. In this project, we attempted to improve tolerance BPs by introducing various functional groups (phosphonate (SI-2), sulfonates (SI-3 SI-5), carboxylates (SI-4, SI-6, SI-7)) in inhibitor structure backbone. All modified alendronic acid derivatives were screened for gypsum according NACE Standard TM0374-2007 protocol. We also report all synthesized SIs addition, thermal stability activities reported. The results better than reported earlier, with SI-5 giving best at high concentrations (10,000 ppm). corresponding attachment an iminodi methylene/ethylene sulfonic moiety (i.e., SI-3 SI-5) worse scaling, whereas methylenephosphonate derivative (SI-2) carboxylated SI-7) improved performance. For standard test significantly lower Heidrun-based due former having higher concentration supersaturation. It was found SI-2, SI-5, SI-7 130 °C 1 week.
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ژورنال
عنوان ژورنال: Energy & Fuels
سال: 2022
ISSN: ['1520-5029', '0887-0624']
DOI: https://doi.org/10.1021/acs.energyfuels.1c03936