ORGANIC-ACIDS AND INORGANIC-IONS IN WATERS FROM PETROLEUM RESERVOIRS, NORWEGIAN CONTINENTAL-SHELF - A MULTIVARIATE STATISTICAL-ANALYSIS AND COMPARISON WITH AMERICAN RESERVOIR FORMATION WATERS
ORGANIC-ACIDS AND INORGANIC-IONS IN WATERS FROM PETROLEUM RESERVOIRS, NORWEGIAN CONTINENTAL-SHELF - A MULTIVARIATE STATISTICAL-ANALYSIS AND COMPARISON WITH AMERICAN RESERVOIR FORMATION WATERS
复制标题
DOI：
10.1016/0883-2927(91)90059-x
复制
发表时间：
1991-01-01
影响因子：
3.4
通讯作者：
BARTH, T
中科院分区：
文献类型：
--
作者：
BARTH, T
建立了挪威大陆架不同井22个采出地层水样品的有机酸阴离子组成、储层深度、温度和压力以及无机离子组成的数据库。通过多元统计分析，探讨了样品不同性质之间的相关性，特别强调了有机酸浓度。有机酸浓度、pH和碱度三者之间呈正相关关系，与无机离子浓度呈负相关关系。有机酸水平与储层温度无显著相关。碱度值可以从样品的剩余离子组成预测，具有合理的准确性，而表面测量的pH值不能准确预测。对美国地层水数据集进行了可比的统计分析。根据水库类型，这些水在统计上分为不同的类别。两个数据集的油藏水体具有很强的相似性。
A data base consisting of organic acid anion composition, reservoir depth, temperature and pressure, and inorganic ion composition of 22 samples of produced formation waters from different wells on the Norwegian continental shelf is presented. Correlation between the different properties of the samples was explored by multivariate statistical analysis, with special emphasis on the organic acid concentrations. Organic acid concentrations, pH and alkalinity are positively correlated with each other and in general negatively correlated with the inorganic ion concentrations. No significant correlation was found between organic acid levels and reservoir temperature. Alkalinity values can be predicted from the remaining ionic composition of the samples with reasonable accuracy, while surface-measured pH cannot be accurately predicted.A comparable statistical analysis was performed on an American formation water data set. These waters separate into statistically different classes based on reservoir types. Strong similarities are found for the oil reservoir waters in the two data sets.