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公开(公告)号：US07776931B2
公开(公告)日：2010-08-17
申请号：US10944288
申请日：2004-09-17
CPC分类号： C09K8/524 , C10G29/20 , C10G33/04 , C10G2300/1033 , C10G2300/203 , C10L1/14 , C10L1/1881 , C10L1/2641
摘要： Low dosage naphthenate inhibitors, such as a surfactant or hydrotrope, delivered into production fluids for contact with mixtures of oil and water, such as in a hydrocarbon producing formation, production equipment, or processing systems. Inhibitor compounds such as monophosphate esters and diphosphate esters exhibit surface-active properties that cause the inhibitors to self-associate at oil-water interfaces and inhibit interactions between organic acids in the oil with cations or cation complexes in the water. These compounds also inhibit aggregation of organic acid carboxylate salts that form when pH and pressure conditions are amenable to organic acid ionization. Preferred inhibitors do not form emulsions due to the formation of unstable mixed interface structures that result in coalescence of dispersed droplets. Naphthenate inhibitor compound dosages of less than 100 ppm can effectively inhibit naphthenate salts or other organic acid salts that can form precipitates or emulsions during crude oil production or processing.
摘要翻译： 低剂量环烷酸盐抑制剂，例如表面活性剂或水溶助长剂，被输送到用于与油和水的混合物接触的生产流体中，例如在烃生产地层，生产设备或处理系统中。 抑制剂化合物如单磷酸酯和二磷酸酯显示出表面活性的性质，其导致抑制剂在油 - 水界面处自相关并且抑制油中的有机酸与水中的阳离子或阳离子配合物之间的相互作用。 当pH和压力条件适于有机酸电离时，这些化合物还抑制形成的有机酸羧酸盐的聚集。 优选的抑制剂由于形成不稳定的混合界面结构而不形成乳液，这导致分散液滴的聚结。 小于100ppm的环烷酸盐抑制剂化合物剂量可以有效地抑制在原油生产或加工过程中可形成析出物或乳液的环烷酸盐或其它有机酸盐。
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2.发明授权Methods for inhibiting naphthenate salt precipitates and naphthenate-stabilized emulsions 有权抑制环烷酸盐沉淀和环烷酸酯稳定乳液的方法公开(公告)号：US07776930B2
公开(公告)日：2010-08-17
申请号：US10869826
申请日：2004-06-16
申请人： Sen J. Ubbels
发明人： Sen J. Ubbels
CPC分类号： C09K8/524 , C10G29/20 , C10G33/04 , C10G2300/1033 , C10G2300/203 , C10L1/14 , C10L1/1881 , C10L1/2641
摘要： Inhibiting naphthenate salts that can form precipitates or emulsions during crude oil production or processing. An effective amount of a naphthenate inhibitor, such as a hydrotrope, is provided into the production fluids for contact with mixtures of oil and water in the formation, the production equipment, or processing systems. It is believed that the naphthenate inhibitors, such as monophosphate ester or diphosphate ester, exhibit surface-active properties that cause the inhibitors to align and concentrate in a layer at the oil-water interface and thereby prevent interactions between organic acids in the oil phase with cations or cation complexes in the water. It is believed that the physical positioning and geometry of the naphthenate inhibitor blocks the growth of naphthenate salt crystals. However, it is preferred that the naphthenate inhibitors also avoid the formation of oil-in-water and water-in-oil emulsions.
摘要翻译： 在原油生产或加工过程中抑制可形成沉淀物或乳液的环烷酸盐。 在地层，生产设备或处理系统中，将有效量的环烷酸盐抑制剂，例如水溶助长剂提供到与油和水的混合物接触的生产流体中。 据信环烷酸盐抑制剂，例如单磷酸酯或二磷酸酯，表现出表面活性的性质，其导致抑制剂在油 - 水界面的层中排列和浓缩，从而防止油相中的有机酸与油相中的相互作用与 阳离子或阳离子配合物在水中。 据信环烷酸盐抑制剂的物理定位和几何形状阻止环烷酸盐晶体的生长。 然而，优选的是，环烷酸盐抑制剂还避免了水包油和油包水乳液的形成。
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