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    • 6. 发明专利
    • Fluid for petroleum recovery
    • 石油回收用流体
    • JPS61136577A
    • 1986-06-24
    • JP25645084
    • 1984-12-06
    • Lion Corp
    • MORITA HIROSHIKAWADA YASUYUKIYAMADA JUNICHIUKIUMI NORIYUKI
    • C09K8/02C09K8/584
    • C09K8/584Y10S507/938
    • PURPOSE: The titled fluid exhibiting a high petroleum recovery rate, which comprises a specified surfactant and water which may contain an inorg. salt.
      CONSTITUTION: 0.1W15wt% surfactant comprising a 10W26C internal olefin sulfonate contg. 40wt% or more hydroxyalkane sulfonate and 20wt% or less disulfonate, and an ether sulfonate of the formula (wherein R
      1 is 12W28C alkyl or alkenylphenyl, or 10W24C alkyl or alkenyl; R
      2 and R
      3 are each C
      2 H
      4 or C
      3 H
      6 ; R
      4 is C
      2 H
      4 , C
      3 H
      6 or the formula II; n≥0; m≥0; n+m=1W10; X is alkali metal) is added to water of inorg. salt concn. of 0W20wt%.
      EFFECT: The produced microemulsion takes in a large amt. of oil and brine and has good dilution stability, so that it is possible to obtain a fluid for petroleum recovery of a high salt concn. exhibiting a high petroleum recovery rate and being suitable for application to an underground reservoir.
      COPYRIGHT: (C)1986,JPO&Japio
    • 目的:表现出高石油回收率的标题液体,其包含特定的表面活性剂和可含有一种或多种溶剂的水。 盐。 构成:0.1-15wt%表面活性剂,包含10-26C内烯烃磺酸盐, 40重量%或更多的羟基烷烃磺酸盐和20重量%或更少的二磺酸盐,和下式的醚磺酸盐(其中R 1是12-28C烷基或烯基苯基,或10-24C烷基或链烯基; R 2和R 3 各自为C 2 H 4或C 3 H 6; R 4为C 2 H 4,C 3 H 6或式II; n> = 0; m = 0; n + m = 1-10; X为碱金属) 盐浓 为0-20wt%。 效果:生产的微乳液体积大。 的油和盐水,并且具有良好的稀释稳定性,从而可以获得用于高盐浓度的石油回收的流体。 表现出高石油回收率,适用于地下水库。