公开(公告)号：US4814094A

公开(公告)日：1989-03-21

申请号：US98414

申请日：1987-09-18

申请人： Charles M. Blair, Jr. ,  Charles A. Stout ,  Raymond P. Olsen

发明人： Charles M. Blair, Jr. ,  Charles A. Stout ,  Raymond P. Olsen

IPC分类号： C08G8/36 ,  C09K8/588 ,  E21B43/22

CPC分类号： C09K8/588 ,  C08G8/36 ,  Y10S507/936

摘要： The method of recovering petroleum from a subterranean reservoir preferably comprising the steps of: (1) introducing through an injection well a predetermined amount of a polyalkylene oxide adduct of a fusible, aromatic hydrocarbon soluble synthetic resin which contains between about 4 to about 16 phenolic groups and is a condensate of a substituted phenol and an aldehyde, said condensate resin being further condensed with ethylene oxide and at least one other alkylene oxide containing 3 or 4 carbon atoms and in such amounts that the weight ratio of condensed alkylene oxide moiety to phenolic resin moiety ranges from about 1-to-1 to about 100-to-1 and the weight percentage of ethylene oxide residues to the total of all alkylene oxide residues ranges from about 20% to about 75%; said adduct (a) being soluble in water to the extent of about 1% or more at 25.degree. C. and (b) said 1% solution having a cloud point of less than about 70.degree. C.; (2) contacting said petroleum in said reservoir with an effective thin film forming amount of said polyalkylene oxide adduct; and (3) introducing into the formation an aqueous medium to urge said petroleum toward and through a producing well.

摘要翻译： 从地下储层回收石油的方法优选包括以下步骤：（1）通过注入井将预定量的含有约4至约16个酚基团的可熔化芳族烃可溶性合成树脂的聚环氧烷加合物引入 并且是取代的苯酚和醛的缩合物，所述缩合物树脂与环氧乙烷和至少一种含有3或4个碳原子的其它烯化氧进一步缩合，其量使得缩合的烯化氧部分与酚醛树脂的重量比 部分范围为约1至1至约100至1，并且环氧乙烷残基相对于所有环氧烷残基的总重量的百分比范围为约20％至约75％; 所述加合物（a）在25℃下可溶于约1％或更多的程度，和（b）所述1％的浊点小于约70℃。 （2）使所述储存器中的所述石油与有效的薄膜形成量的所述聚环氧烷加合物接触; 和（3）向地层中引入含水介质以促使所述石油通过生产井。