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Exploring the mechanisms of calcium carbonate deposition on various substrates with implications for effective anti-scaling material selection

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Petroleum Science 2024年第4期21卷 2870-2880页

作者： Lu Gong Fei-Yi Wu Ming-Fei Pan Jun Huang Hao Zhang Jing-Li Luo Hong-Bo Zeng College of Science China University of PetroleumBeijing102249China Beijing Key Laboratory of Optical Detection Technology for Oil and Gas China University of PetroleumBeijing102249China Basic Research Center for Energy Interdisciplinary College of ScienceChina University of PetroleumBeijing102249China Department of Chemical and Materials Engineering University of AlbertaEdmontonAlbertaT6G 1H9Canada Key Laboratory of High Efficiency and Clean Mechanical Manufacture(Ministry of Education) School of Mechanical EngineeringShandong University

The unexpected scaling phenomena have resulted in significant damages to the oil and gas industries,leading to issues such as heat exchanger failures and pipeline *** is of practical and fundamental importance to understand the scaling mechanisms and develop efficient anti-scaling ***,the underlying surface interaction mechanisms of scalants(e.g.,calcite)with various substrates are still not fully *** this work,the colloidal probe atomic force microscopy(AFM)technique has been applied to directly quantify the surface forces between calcite particles and different metallic substrates,including carbon steel(CR1018),low alloy steel(4140),stainless steel(SS304)and tungsten carbide,under different water chemistries(i.e.,salinity and pH).Measured force profiles revealed that the attractive van der Waals(VDW)interaction contributed to the attachment of the calcium carbonate particles on substrate surfaces,while the repulsive electric double layer(EDL)interactions could inhibit the attachment *** salinity and acidic p H conditions of aqueous solutions could weaken the EDL repulsion and promote the attachment *** adhesion of calcite particles with CR1018 and4140 substrates was much stronger than that with SS304 and tungsten carbide *** bulk scaling tests in aqueous solutions from an industrial oil production process showed that much more severe scaling behaviors of calcite was detected on CR1018 and 4140 than those on SS304 and tungsten carbide,which agreed with surface force measurement ***,high salinity and acidic p H can significantly enhance the scaling *** work provides fundamental insights into the scaling mechanisms of calcite at the nanoscale with practical implications for the selection of suitable antiscaling materials in petroleum industries.

关键词： scaling phenomenon Metallic substrates Surface forces Bulk scaling tests

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