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1.
公开(公告)号:US20170037304A1
公开(公告)日:2017-02-09
申请号:US15303042
申请日:2015-03-23
Applicant: BASF SE , BASF Corporation
Inventor: Shawn Rimassa , Walter BERTKAU , Joseph BORST
CPC classification number: C09K8/74 , C09K8/602 , C09K2208/30 , E21B43/25 , E21B43/26
Abstract: Method of increasing the permeability in subterranean formations comprising rock that is soluble by acid, in particular carbonatic formations, using a formulation comprising at least an acid and a retarding surfactant which is an amphoteric surfactant. Preferably, the acid comprises methanesulfonic acid.
Abstract translation: 使用包含至少一种酸和作为两性表面活性剂的阻滞表面活性剂的制剂,增加地下地层中渗透性的方法,其包括可被酸,特别是碳酸盐地层溶解的岩石。 优选地,酸包括甲磺酸。
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公开(公告)号:US20150376726A1
公开(公告)日:2015-12-31
申请号:US14767399
申请日:2014-02-12
Applicant: BASF SE
Inventor: Walter BERTKAU , Yu MEI , Robert ORTH , Thomas SCHNEIDER
Abstract: In a method of producing leather comprising a plurality of steps, methanesulfonic acid is used in at least one step.
Abstract translation: 在制造包含多个步骤的皮革的方法中,甲磺酸用于至少一个步骤。
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