• 天然气开发 • 下一篇
熊钰1,刘斯琪1,余翔2,唐建荣2,傅希桐1
Xiong Yu1,Liu Si-qi1,Yu Xiang2,Tang Jian-rong2,Fu Xi-tong1
摘要: 四川盆地自流井区块自2井缝洞系统因其独特的地理位置、完井方式以及卓越的社会经济效益备受关注,研究其缝洞系统结构和水侵模式,对气藏生产末期管理和预测采收率具有重要意义。因此,首先结合茅口组和栖霞组的溶蚀特点,从该井的生产特点出发,在储量和水侵动态分析方法的论述基础上,从多个方面详细阐述了该缝洞系统的典型地质特点,论证了栖霞组缝洞基本结构及规模,给出了该井的缝洞结构及水侵模式,同时应用非线性物质拟合法、AIF法和补给型物质平衡法对自2井水侵动态进行了研究,分析了其缝洞结构对生产的影响并预测了其生产潜力。此外,根据其历史作用,系统地总结了该井在缝洞型气藏开发中的历史地位和作用。研究对类似的缝洞型油气藏的开发具有一定的指导作用。
中图分类号:
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