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Exploration practices in frontiers of Tahe oilfield
Author(s): 
Pages: 751-761
Year: Issue:  6
Journal: OIL & GAS GEOLOGY

Keyword:  勘探思路勘探成果塔河油田;
Abstract: 塔河油田"十五"期间完成三级储量163 877.2×104 t油当量,其中探明52 226.01×104 t油当量.塔河油田奥陶系油藏稳步外扩,勘探层位及领域不断扩大,取得的油气勘探成果可以概括为"三大突破":①明确了奥陶系岩溶缝洞型储层发育的主控因素和分布规律,实现了塔河油田奥陶系新地区的突破;②碎屑岩领域实现了新层位的重大突破,拓展了塔河油田新的领域;③非背斜圈闭领域获得工业油气流,实现新的圈闭类型的突破.同时,在勘探思路上也取得较大成果:①碳酸盐岩岩溶缝洞型油藏成藏理论的建立是基本探明塔河特大型油田的基础;②加里东中期岩溶的发现为塔河油田向南扩大提供了科学依据;③复式油气藏理论的发展有效指导了碎屑岩领域的勘探;④"前缘隆起与斜坡控制油气富集"认识指导了天山南缘勘探,新发现一大批圈闭,为西北分公司可持续发展奠定了坚实基础.
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