公开(公告)号：US3965984A

公开(公告)日：1976-06-29

申请号：US510204

申请日：1974-09-30

申请人： Charles R. Clark ,  M. Duane Gregory ,  Oliver C. Kerfoot ,  Delmar D. Krehbiel ,  Carl D. Kennedy

发明人： Charles R. Clark ,  M. Duane Gregory ,  Oliver C. Kerfoot ,  Delmar D. Krehbiel ,  Carl D. Kennedy

IPC分类号： C09K8/584 ,  E21B43/22

CPC分类号： C09K8/584 ,  Y10S507/936

摘要： An improved anionic waterflood additive is prepared by partially chlorinating a normal alkane having about 10 to about 18 carbon atoms to about 2 to about 15 weight percent chlorine content, employing the chlorinated alkane to alkylate an aromatic hydrocarbon, such as benzene; sulfonating the thus formed alkylate or a fraction thereof to form a sulfonic acid; converting the sulfonic acid to a sulfonate by reacting with a base component, such as an alkali metal hydroxide, ammonium hydroxide, or an alkali metal carbonate; and overbasing the sulfonate by admixing with an excess of base component such that the ratio: "weight of excess base component/weight of sulfonate" is about 0.03 to about 3.0. The anionic waterflood additive is injected into a petroliferous formation, the formation is waterflooded, and oil is recovered.

摘要翻译： 通过使用氯代烷烃烷基化芳族烃如苯，通过部分氯化具有约10至约18个碳原子至约2至约15重量％的氯含量的正烷烃来制备改进的阴离子注水添加剂; 磺化由此形成的烷基化物或其一部分以形成磺酸; 通过与碱性成分如碱金属氢氧化物，氢氧化铵或碱金属碳酸盐反应，将磺酸转化成磺酸盐; 并通过与过量的碱成分混合来使磺酸盐过碱化，使得“过量碱成分的重量/磺酸盐的重量”的比例为约0.03至约3.0。 将阴离子注水添加剂注入含油层，形成水驱，回收油。