塔里木盆地下古生界碳酸盐岩大油气田勘探实践与展望

doi:10.11743/ogg20140604

摘要/Abstract

摘要： 通过回顾塔里木盆地下古生界碳酸盐岩大油气田的勘探历程,总结了经验与教训,剖析了顺南气藏成藏地质条件,展望了台盆区下古生界碳酸盐岩的勘探潜力,以期对寒武系-奥陶系碳酸盐岩领域勘探提供借鉴.大油气田发现的勘探实践表明,理论创新、勘探思路转变和技术进步密切相关.塔里木盆地下古生界碳酸盐岩领域经历了潜山(残丘)圈闭勘探、岩溶缝洞型圈闭勘探及内幕缝洞型圈闭勘探3个阶段.顺南气藏的顺南4井在鹰山组发现了多成因内幕缝洞型圈闭,测试获高产气流,气藏类型为干气藏,标志着下古生界碳酸盐岩领域进入多成因内幕缝洞型圈闭勘探阶段.沙雅隆起南坡、塔中隆起北坡和中央隆起区南坡是今后大油气田勘探的主要地区.

关键词: 勘探历程, 碳酸盐岩, 下古生界, 顺南气藏, 塔河油田, 塔里木盆地

Abstract: This paper reviews the exploration history of large oil/gas fields in the Lower Paleozoic carbonates in the Tarim Basin, sums up experiences and draws the necessary lessons, analyzes the geological conditions of the Shunnan gas reservoir, and predicts the exploration potential of the Lower Paleozoic carbonates, so as to provide references for exploration in the Cambrian and Ordovician carbonates. Exploration practice shows that the discovery of giant oil and gas fields are closely related with theory innovation, mentality transformation and technological progress. The exploration of the Lower Paleozoic Carbonate reservoirs has experienced three stages including buried hill (karst monadnock) trap stage, karst fractured-vuggy trap stage and interior fractured-vuggy trap stage. The well SN4 in Shunnan gas reservoir discovered an interior fractured-vuggy reservoir of multiple origins and tested high gas flow in a dry gas reservoir in Yingshan Formation, indicating the exploration of the Lower Paleozoic carbonates entering the stage of interior fractured-vuggy trap with multiple origin. The main target areas of the future exploration are the southern slope of Shaya Uplift, the northern slope of the Tazhong Uplift and the southern slope of central uplift zone.

Key words: exploration history carbonate rock, Lower Paleozoic, Shunnan gas field, Tahe oil field, Tarim Basin

中图分类号:

TE122.3

漆立新. 塔里木盆地下古生界碳酸盐岩大油气田勘探实践与展望[J]. 石油与天然气地质, 2014, 35(6): 771-779. doi: 10.11743/ogg20140604 Qi Lixin. Exploration practice and prospects of giant carbonate field in the Lower Paleozoic of Tarim Basin[J]. Oil & Gas Geology, 2014, 35(6): 771-779. doi: 10.11743/ogg20140604

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