海相油气地质2017，Vol.22Issue(4)：61-68,8.DOI:10.3969/j.issn.1672-9854.2017.04.008
塔东地区下古生界天然气成藏主控因素及勘探领域
Conditions for Gas Accumulation and Potential Areas in Lower Paleozoic Eastern Tarim Basin
摘要
Abstract
By means of drilling core and analysis data, as well as logging data and seismic data,the source rock and reservoir rock of the Lower Paleozoic in eastern Tarim Basin are comprehensively evaluated. It is indicated that, the source rock within the Lower Paleozoic from Cambrian to Ordovician is in high and over mature stage, therefore providing hydrocarbon in the form of oil-cracking gas. It is pointed out that the effective cracking gas-bearing targets are concentrated in the northern Gucheng area. The primary reservoir is in two forms as follows: The granular limestone with fracture and dissolution pores mainly distributed in the west platform edge of Gucheng and in the east Luoxi platform; The dolomite with dissolution pores mainly distributed in the platform of eastern Tarim Basin. Combined with the analysis of regional tectonic evolution history, it is proposed that the nose structure of Gucheng and its north-west area are the most favorable areas, and Yingdong structure belt and other uplifts in the sag are the secondary favorable areas.关键词
塔里木盆地/下古生界/碳酸盐岩/天然气/成藏Key words
Carbonate/Natural gas/Accumulation/Lower Paleozoic/Tarim Basin分类
能源科技引用本文复制引用
刘卫红,高先志,叶信林,冉启贵,程宏岗..塔东地区下古生界天然气成藏主控因素及勘探领域[J].海相油气地质,2017,22(4):61-68,8.基金项目
本文受国家科技重大专项"大型油气田及煤层气开发"(编号:2016ZX05007)和国家重大科技专项"南大西洋两岸重要盆地层序地层格架与烃源岩和储层评价研究"(编号:2016ZX05033-001-002)资助 （编号:2016ZX05007）
