OILFIELD WATER ION CHROMATOGRAPHIC ANALYSIS TECHNIQUE AND ITS APPLICATION IN OILFIELD DEVELOPMENT
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摘要: 针对常规化学分析方法分析油田水中常量离子的缺点,开展了油田水离子色谱分析技术研究,并应用到泌阳凹陷安棚油田的油田水分析中,为油田开发提供了可靠的分析数据。研究成果表明安棚油田储层条件较差,不同层位油田水受储层性质的影响较大,注入水对储层的溶蚀作用较强。安棚油田浅中层与深层的油田水差别显著,深层油田水受注水的影响更大。泌185—安2108—安65—安27—安2029—泌185等井组成的闭合区域为统一储集体,具有较好油气储集条件。油田水离子色谱分析技术对研究储层连通性、注水开发效果具有重要意义。Abstract: A research on the oilfield water ion chromatographic analysis technique has been conducted in order to overcome the problems encountered in constant ion analysis of oilfield water by conventional chemical analysis method.The new technique has been applied into the oilfield water analysis in the Anpeng Oilfield of the Biyang Sag,and has provided liable analysis data for oilfield development.The results indicate that the reservoir condition of the Anpeng Oilfield is poor,the oilfield water is influenced significantly by the reservoir features,and the erosion effect of the injection water to the reservoir is strong.The characteristics of the oilfield water in the shallow-middle and the deeper parts of the Anpeng Oilfield in the Biyang Sag are obviously different,with the greater influence of the injection water in the deeper part.The closed area composed by the Bi 185-An 2108-An 65-An 27-An2029-Bi185 is a unified reservoir with good performance for oil and gas accumulation.So oilfield water ion chromatographic analysis technique has important significance in the research of the continuity of the reservoirs and the effect of injection development.
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