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为系统研究水中有机质的组成、性质及其与油气的关系,我们开展了地层水中水沥青的分析和研究。本文把扩散和溶解于水中、可被氯仿萃取的有机物质称为水沥青。 1.萃取试验 试样配制:取经氯仿萃取后的湖水,加入一定量的原油(500毫升水加1克左右原油),用力摇动数分钟,放置一段时间,过滤去油花,备用。 取试样若干份(每份500毫升),加入分液漏斗,用5％盐酸或5％氢氧化钠将PH分别调到4-10,然后用100毫升氯仿分三次萃取。试验结
In order to systematically study the composition and properties of organic matter in water and its relationship with oil and gas, we carried out the analysis and research of water-asphalt in formation water. In this paper, the diffusion and dissolution in water, chloroform-extracted organic matter called water pitch. 1. Extraction test sample preparation: Take the chloroform extracted lake, add a certain amount of crude oil (500 ml of water plus 1 g of crude oil), shake vigorously for a few minutes, place for a period of time, filtered to spend, spare. Take several portions of the sample (500ml each), add to a separatory funnel, adjust the pH to 4-10 with 5% hydrochloric acid or 5% sodium hydroxide, and extract with three 100ml portions of chloroform. Test results