塔里木盆地满深1井奥陶系超深断控碳酸盐岩油气藏勘探重大发现及意义

doi:10.3969/j.issn.1672-7703.2020.03.002

摘要/Abstract

摘要： 位于塔里木盆地北部坳陷的满深1 井在奥陶系一间房组获得重大突破。通过对满深1 井成藏条件、油藏特征及富集规律的深入研究，总结了塔里木盆地北部坳陷断控岩溶区高产井油气成藏模式和富集规律。塔里木盆地海相碳酸盐岩主要发育潜山岩溶、层间岩溶、礁滩岩溶和断控岩溶4 种不同的岩溶类型，满深1 井钻遇断控岩溶；满深1 井是迄今为止断控岩溶油气藏埋藏最深、单井产量最高的发现井，在埋深7535m 的奥陶系一间房组测试折日产油624m3，折日产气37.13×104m3；建立了断控岩溶油气藏3 种富集模式，即线性走滑上倾高部位、张扭侧向高部位、压扭局部高部位。满深1 井的成功钻探，是以断裂为核心的碳酸盐岩断控岩溶油气藏勘探思路的成功实践，实现了塔北隆起与塔中凸起之间的鞍部油气勘探的突破，对整个塔里木盆地深层—超深层油气勘探具有重大意义。

关键词: 塔里木盆地, 超深层, 断控岩溶, 碳酸盐岩, 满深1井

Abstract: Well Manshen 1, located in the Northern depression of the Tarim Basin, has achieved a great breakthrough in the Ordovician Yijianfang Formation. Based on in-depth studies of hydrocarbon accumulation conditions, reservoir characteristics, and enrichment patterns of the well, the hydrocarbon accumulation model and enrichment patterns of high-production wells in fault-controlled karst areas in the Northern depression of the Tarim Basin have been summarized. There are four types of marine carbonate rocks in the Tarim Basin: buried hill karst, interlayer karst, reef-shoal karst and fault-controlled karst. Well Manshen 1 penetrated fault-controlled karst. Well Manshen 1 is a discovery well of fault-controlled karst reservoir with the deepest burial depth and the highest single well production so far. In the Yijianfang Formation of the Ordovician, with a buried depth of 7535 m, tested oil production is 624 m3/d and gas production is 37.13×104 m3/d. Three enrichment patterns of fault-controlled karst reservoirs are established: linear strike-slip up-dip high position, transtensional lateral high position, and compressive-shear local high position. The discovery of Well Manshen 1 is a successful practical application of the exploration idea of fault-controlled karst carbonate reservoirs with faults as the core. It has achieved a breakthrough in oil and gas discovery in the saddle position between the Tabei uplift and the Tazhong bulge, which is of great significance for deep and ultra-deep oil and gas exploration in the Tarim Basin as a whole.

Key words: Tarim Basin, ultra-deep formation, fault-controlled karst, carbonate rock, Well Manshen 1

中图分类号:

杨海军, 邓兴梁, 张银涛, 谢舟, 李勇, 李世银, 张海祖, 朱永峰, 陈永权. 塔里木盆地满深1井奥陶系超深断控碳酸盐岩油气藏勘探重大发现及意义[J]. 中国石油勘探, 2020, 25(3): 13-23.

Yang Haijun, Deng Xingliang, Zhang Yintao, Xie Zhou, Li Yong, Li Shiyin, Zhang Haizu, Zhu Yongfeng, Chen Yongquan. A great discovery and its significance for exploration of Ordovician ultra-deep fault-controlled carbonate reservoirs in Well Manshen 1 in the Tarim Basin[J]. China Petroleum Exploration, 2020, 25(3): 13-23.

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