申请人:SCHLUMBERGER TECHNOLOGY CORPORATION
公开号:US10794527B2
公开(公告)日:2020-10-06
A method of inhibiting corrosion of metal which will be in contact with aqueous, and possibly acidic, solution comprises contacting the metal with a corrosion inhibiting composition containing more than 30% by weight of one or more organic corrosion inhibiting constituents which are water-insoluble hydrophobic material, and a corrosion inhibitor which contains one or more polymerisable groups containing double or triple bonded carbon, before contacting the metal with the aqueous solution. The method may be used to protect coiled tubing used for matrix acidizing of an oil well by propelling a slug of the corrosion inhibiting composition along the coiled tubing before pumping acid through the tubing.
一种抑制将与水溶液(可能是酸性溶液)接触的金属腐蚀的方法,包括在金属与水溶液接触之前,使金属与一种缓蚀组合物接触,该缓蚀组合物含有一种或多种有机缓蚀成分(按重量计),其中一种或多种有机缓蚀成分是不溶于水的疏水材料,其重量超过30%,还含有一种缓蚀剂,该缓蚀剂含有一种或多种含有双键或三键碳的可聚合基团。该方法可用于保护用于油井基质酸化的盘绕油管,方法是在泵送酸液通过油管之前,沿盘绕油管推进一滴缓蚀组合物。