塔里木盆地油田水有机地球化学特征分类及其石油地质意义

CHARACTERISTICS OF ORGANIC GEOCHEMISTRY AND CLASSIFICATION OF OIL FIELD WATER IN TARIM BASIN AND ITS PETROLEUM GEOLOGICAL SIGNIFICANCE

塔里木盆地油田水具有复杂多变的有机地球化学特点，本文对其有机质、有机酸及三维荧光特征进行了分析和综合分类。初步建立了油田水与油气性质及油气藏的联系，讨论了该盆地油田水有机地球化学特征与油气藏的关系，提出“含油气流体系统”的新概念。以此为基础，对塔中地区及轮南地区的部分油气区进行了含油气流体系统的划分，分析了其油气运聚过程。

This paper analyzes and summaries organic matters, organic acids and aromatic 3D fluorescent features of oil field water in Tarim basin. An integrated classification of organic matter and 3D fluorescence of oil field water is conducted. Relations between oilfield water, and oil-gas properties and oil-gas reservoirs are established preliminarily. Meanwhile, relationships between organic geochemical feature of oil field water and oil-gas reservoir are dealt with. Moreover, a new concept 'hydrocarbon-bearing fluid system' is proposed. On the above bases, some oil-gas reservoirs in Tazhong and Lunnan areas are classified according to their hydrocarbon-bearing fluid systems, and the processes of hydrocarbon migration and accumulation are analyzed.