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针对靖边气田马五1+2碳酸盐岩储层水平井开发中面临的“侵蚀沟槽发育、主力储层厚度薄、小幅度构造变化快、储层非均质性强”等实施难点,综合应用三维地震技术、地质储层评价、技术经济分析以及气藏数值模拟等研究方法,建立了水平井井位优选、轨迹优化设计、现场地质导向与轨迹调整等水平井开发关键地质技术。使得完钻水平井有效储层钻遇率达到60%以上,单井产量达到了直井的3~5倍,实现了靖边气田水平井规模化应用。
In the development of horizontal well in Mawu 1 + 2 carbonate reservoir in Jingbian Gas Field, the development of “erosion trenches, thin main reservoir thickness, rapid change in small amplitude and strong reservoir heterogeneity” With the application of three-dimensional seismic technology, geological reservoir evaluation, technical and economic analysis, and numerical simulation of gas reservoirs, the key geological conditions of horizontal well, such as well location optimization, trajectory optimization design, on-site geosteering and trajectory adjustment, are established technology. Which makes the drilling rate of effective reservoirs in horizontal wells completed more than 60% and the single well output 3 to 5 times that of vertical wells, realizing the large-scale application of horizontal wells in Jingbian gas field.