Polymeric nanoemulsion as drag reducer for multiphase flow
    55.
    发明授权
    Polymeric nanoemulsion as drag reducer for multiphase flow 有权
    聚合纳米乳液作为多相流动的减阻剂

    公开(公告)号:US07468402B2

    公开(公告)日:2008-12-23

    申请号:US11068400

    申请日:2005-02-28

    Abstract: Polymeric nanoemulsions facilitate flow and reduce drag and friction in multiphase pipelines containing both oil and water (e.g., oil/water, oil/water/gas, oil/water/solids, and oil/water/gas/solids) such as are used for oil or gas production, gathering, and transmission; hydrotransport of oilsand or heavy oil slurries and the like. Specific examples of suitable drag reducing polymers include polyacrylamide. The emulsions have a hydrocarbon external phase, droplets of an aqueous internal phase having water-soluble polymer dissolved therein, where the droplets have an average particle size below about 200 nm, and at least one surfactant to form a stable nanoemulsion. The nanoemulsions advantageously have a low viscosity of about 200 cP or less.

    Abstract translation: 聚合纳米乳液促进流动并减少包含油和水(例如油/水,油/水/气体,油/水/固体和油/水/气/固体)的多相管道中的阻力和摩擦,例如用于 石油或天然气的生产,采集和传输; 油或重油浆料的水运输等。 合适的减阻聚合物的具体实例包括聚丙烯酰胺。 乳液具有烃外相,其中水溶性聚合物溶于其中的水相内水相,其中液滴具有低于约200nm的平均粒度,以及至少一种表面活性剂以形成稳定的纳米乳液。 纳米乳液有利地具有约200cP或更低的低粘度。

    Emulsion Composition
    56.
    发明申请
    Emulsion Composition 审中-公开
    乳液成分

    公开(公告)号:US20080207473A1

    公开(公告)日:2008-08-28

    申请号:US11813112

    申请日:2006-01-10

    Abstract: The present invention provides an emulsion composition containing (a) a first phase with (i) an oil soluble inert medium; and (ii) an emulsifier capable of forming a water-in-oil emulsion; and (b) a second phase with (i) a metal base; (ii) an aqueous medium; and (iii) optionally a compound containing two or more hydroxyl groups, wherein a base in the form of an alkali metal or an alkaline earth metal oxide, hydroxide, carbonate, bicarbonate; or combinations thereof; and wherein the emulsion composition has a flow rate through a 45 μm filter of more than 8 ml/min in a filterability test carried out at ambient temperature and 45 kPa applied vacuum; wherein the filter has diameter of 5 cm and a mesh size of about 45 μm; and wherein the oil soluble inert medium in the filtration test is an oil of lubricating viscosity of a SAE 50 base oil. The invention further provides a method of preparing the emulsion composition and its use in a marine engine.

    Abstract translation: 本发明提供了一种乳液组合物,其包含(a)第一相和(i)油溶性惰性介质; 和(ii)能够形成油包水乳液的乳化剂; 和(b)第二相,其中(i)金属基体; (ii)水性介质; 和(iii)任选的含有两个或更多个羟基的化合物,其中碱金属或碱土金属氧化物的形式的碱,氢氧化物,碳酸盐,碳酸氢盐; 或其组合; 并且其中所述乳液组合物在环境温度和45kPa施加真空下进行的过滤性试验中具有大于8ml / min的45μm过滤器的流速; 其中所述过滤器具有5cm的直径和约45μm的筛孔尺寸; 并且其中过滤试验中的油溶性惰性介质是SAE 50基础油的润滑粘度的油。 本发明还提供了一种制备乳液组合物及其在船用发动机中的应用的方法。

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