应用多离子分析识别超稠油蒸汽吞吐产出水水性

针对曙-区兴隆台油层和馆陶组绕阳河油层超稠油在开采过程中顶水下泄，底水上窜，边水推进，单纯采用6离子分析法很难区分产出水中回采水与顶底水的问题，为了在油井吞吐生产过程中及早发现顶，底，边水是否产出，经过270井次的水性资料分析。并结合国内外热采油藏矿物变化文献研究，摸索出利用SiO2高温溶解特性分析识别超稠油藏汽吞吐产出水水性技术，现场应用结果表明：该技术可有效弥补常用6离子法的不足，识别吞吐共产出水水性可行。

Determine the quality of produced water in cyclic steam stimulation of super heavy oil by multi-ion analysis

In accordance with the situation of top water leaking downward, bottom water channeling upward and edge water propagating forward during recovery of super heavy oil in Xinglongtai and Guantao formation of Shul area, it is difficult to discriminate back produced water from top and bottom water in the recovered water by merely using 6-ion analysis method. In order to discover top, bottom and edge water producing as early as possible during cyclic steam stimulation process, water quality has been analyzed for 270 well times. Literatures about minerals in thermal recovery reservoirs are studied. And it is worked out to determine the quality of water produced in cyclic steam stimulation of super heavy oil by analyzing high temperature dissolution property of Si02 . Field application shows that this technique can remedy the shortcomings of conventional 6-ion method, and is feasible to determine the quality of produced water in cyclic steam stimulation.