公开(公告)号：US4446036A

公开(公告)日：1984-05-01

申请号：US386665

申请日：1982-06-09

申请人： Wen-Ching Hsieh ,  June M. Bostich ,  Jeffery W. Koepke

发明人： Wen-Ching Hsieh ,  June M. Bostich ,  Jeffery W. Koepke

IPC分类号： C09K8/584 ,  C09K7/02 ,  E21B43/16

CPC分类号： C09K8/584 ,  Y10S507/938

摘要： Enhanced oil recovery from a subterranean petroleum reservoir is realized by successively flooding oil-bearing subterranean formations with (1) a micellar displacement fluid comprising a hydrocarbon, cosurfactant, brine and two or more different petroleum sulfonates, (2) a mobility buffer, and (3) an aqueous drive fluid; the oil is recovered from one or more production wells spaced apart from the injection well in the reservoir.

摘要翻译： 通过用（1）含有烃，辅助表面活性剂，盐水和两种或更多种不同的石油磺酸盐的胶束置换流体连续地淹没含油地下地层，（2）迁移率缓冲液和（ 3）水驱动液; 从储存器中的注入井间隔开的一个或多个生产井回收油。

公开(公告)号：US4847018A

公开(公告)日：1989-07-11

申请号：US185286

申请日：1988-04-15

申请人： Jeffery W. Koepke ,  Wen-Ching Hsieh ,  June M. Bostich

发明人： Jeffery W. Koepke ,  Wen-Ching Hsieh ,  June M. Bostich

IPC分类号： C07C303/06 ,  C07C309/62

CPC分类号： C07C303/06

摘要： A petroleum sulfonate is prepared by (a) separately sulfonating each of two or more different petroleum fractions boiling substantially above 700.degree. F. by contact with sulfur trioxide under reaction conditions wherein the ratio of milliliters of sulfur trioxide to grams of aromatic components is adjusted so as to produce from each separate fraction a reaction product capable of producing upon neutralization a sulfonate having a sulfonate requirement in microemulsion below about 20 grams per 100 milliliters of microemulsion; (b) separately neutralizing the sulfonated fractions; and (c) blending the hydrocarbon sulfonates produced from two or more of the fractions in proportions sufficient to yield a product petroleum sulfonate blend useful for enhanced oil recovery.In one embodiment four different petroleum fractions are separately sulfonated using different ratios of sulfur trioxide to aromatic content for each fraction and the sulfonated fractions are blended in a weight ratio between 0:1:1:0 and 1:10:10:1 to yield a sulfonate blend useful for enhanced oil recovery.

摘要翻译： 石油磺酸盐通过以下方法制备：（a）在反应条件下，通过与三氧化硫接触，分别将沸点基本上高于700°F的两种或更多种不同的石油馏分分别磺化，其中将三氧化硫的三氧化硫与芳族成分克的比例调整为 为了从每个单独的级分产生能够在中和时产生的微乳液中磺酸盐需求低于约20克/ 100毫升微乳液的磺酸盐的反应产物; （b）分别中和磺化级分; 和（c）将从两种或多种级分产生的烃磺酸盐以足以产生用于增强油回收率的产物石油磺酸盐共混物的比例混合。 在一个实施方案中，使用不同比例的三氧化硫与每个级分的芳族含量单独磺化四种不同的石油馏分，并且磺化馏分以0：1：1：0至1：10：10：1的重量比共混，得到 一种用于提高采收率的磺酸盐混合物。