Micellar slug for oil recovery
    21.
    发明授权
    Micellar slug for oil recovery 失效
    用于油回收的胶束

    公开(公告)号:US4765408A

    公开(公告)日:1988-08-23

    申请号:US844438

    申请日:1986-03-26

    CPC分类号: C09K8/584 Y10S507/938

    摘要: A micellar slug for use in the recovery of oil, consisting essentially of a surfactant and an aqueous medium, which may contain an inorganic salt. The surfactant contains:(a) at least one alkoxy sulfonate having the general formula (I): ##STR1## wherein R.sup.1 represents an alkyl group having 1 to 26 carbon atoms, R.sup.2 represents an alkyl or alkenyl group having 1 to 24 carbon atoms, R.sup.3 represents hydrogen or an alkyl group having 1 to 24 carbon atoms, n is a number of 0 to 5, and X represents an alkali metal, an alkaline earth metal, ammonium, or an organic amine, and(b) at least one other surfactant.The micellar slug obtains large intake amounts of oil and brine in the resultant micro-emulsions and a good dilution stability of the micro-emulsion, and is capable of recovering oil from subterranean reservoirs having a high salt content at a high oil recovery efficiency.

    摘要翻译: 用于回收油的胶束塞,主要由表面活性剂和含水介质组成,其可以含有无机盐。 表面活性剂包含:(a)至少一种具有通式(I)的烷氧基​​磺酸盐:其中R 1表示具有1至26个碳原子的烷基,R 2表示具有1至24个碳原子的烷基或链烯基 碳原子,R 3表示氢或碳原子数1〜24的烷基,n表示0〜5的数,X表示碱金属,碱土金属,铵或有机胺,(b) 至少一种其他表面活性剂。 所得微乳液中的胶束块获得大量的油和盐水,并且微乳液具有良好的稀释稳定性,并且能够以高的油回收效率从具有高盐含量的地下储层中回收油。

    Micellar slug for oil recovery
    22.
    发明授权
    Micellar slug for oil recovery 失效
    用于油回收的胶束

    公开(公告)号:US4733728A

    公开(公告)日:1988-03-29

    申请号:US798786

    申请日:1985-11-18

    IPC分类号: C09K8/02 C09K8/584 E21B43/22

    CPC分类号: C09K8/584 Y10S507/938

    摘要: A micellar slug for use in the recovery of oil, consisting essentially of a surfactant and an aqueous medium, which may contain an inorganic salt. The surfactant contains, as essential constituents,(a) at least one internal olefin sulfonate having 10 to 26 carbon atoms; and(b) 0.1 to 60 parts by weight, based on 100 parts by weight of the internal olefin sulfonate, of at least one ether sulfonate having the general formula:R.sup.1 --O--(R.sup.2 O).sub.m --(R.sup.3 O).sub.n --R.sup.4 --SO.sub.3 X (I) wherein R.sup.1 represents an alkyl or alkenyl phenyl group having 12 to 26 carbon atoms or an alkyl or alkenyl group having 10 to 24 carbon atoms, R.sup.2 represents C.sub.2 H.sub.4 or C.sub.3 H.sub.6, R.sup.3 represents C.sub.2 H.sub.4 or C.sub.3 H.sub.6, R.sup.4 represents C.sub.2 H.sub.4, C.sub.3 H.sub.6, or CH.sub.2 CH(OH)CH.sub.2, n.gtoreq.0, m.gtoreq.0, and n+m=0 to 15, and X represents an alkali metal or an alkaline earth metal.

    摘要翻译: 用于回收油的胶束塞,主要由表面活性剂和含水介质组成,其可以含有无机盐。 表面活性剂含有(a)至少一种具有10-26个碳原子的内烯烃磺酸盐作为必需成分; 和(b)0.1至60重量份,基于100重量份的内烯烃磺酸盐,至少一种具有以下通式的醚磺酸盐:R 1 -O-(R 20)m - (R 3 O)n -R 4 - SO 3 X(I)其中R 1表示碳原子数12〜26的烷基或烯基苯基或碳原子数为10〜24的烷基或烯基,R2表示C2H4或C3H6,R3表示C2H4或C3H6,R4表示C2H4,C3H6, 或CH 2 CH(OH)CH 2,n> = 0,m> = 0,n + m = 0〜15,X表示碱金属或碱土金属。

    Micellar slug for oil recovery
    23.
    发明授权
    Micellar slug for oil recovery 失效
    用于油回收的胶束

    公开(公告)号:US4534411A

    公开(公告)日:1985-08-13

    申请号:US475602

    申请日:1983-03-15

    IPC分类号: E21B43/22 C09K8/584

    CPC分类号: C09K8/584 Y10S507/938

    摘要: A micellar slug for use in the recovery of oil, the slug containing a hydrocarbon, an aqueous medium, a surfactant, and a cosurfactant. The surfactant contains as essential components (a) at least one alpha-olefin sulfonate having 10 to 30 carbon atoms and (b) at least one ethoxylate selected from the group consisting of polyoxyethylene alkyl ethers and polyoxyethylene alkylphenyl ethers in a weight ratio of component (a) to component (b) of 8/2 to 3/7. The micro-emulsion can be formed from this micellar slug in a wide composition range. Furthermore, this micellar slug has an excellent salinity tolerance and hard-water resistance.

    摘要翻译: 用于回收油的胶束塞,含有烃的水泥,水性介质,表面活性剂和辅助表面活性剂。 表面活性剂含有(a)至少一种具有10至30个碳原子的至少一种α-烯烃磺酸盐和(b)至少一种选自聚氧乙烯烷基醚和聚氧乙烯烷基苯基醚的乙氧基化物,其组分(重量比) a)到8/2至3/7的组分(b)。 该微乳液可以由宽的组成范围内的该胶束块形成。 此外,该胶束块具有优异的耐盐性和耐硬水性。