渤东低凸起南段油气横向输导能力的定量评价

发布时间：2018-04-28 05:39

本文选题：渤东低凸起南段 + 新近系勘探　；参考：《西南石油大学学报(自然科学版)》2017年03期

【摘要】：渤东低凸起南段油气横向输导路径和输导能力的不确定性影响成藏模式的建立及新近系的勘探。综合利用钻井、测井资料,通过地震属性提取、岩芯观察等方法,对研究区油气输导条件进行分析,研究认为馆陶组骨架砂体横向输导受限于深入烃源岩且长期活动断层的发育程度以及自身含砂量,而火山岩潜山顶部不整合面的输导层-盖层配置关系好,半风化岩石原生与次生孔、缝发育,且潜山以缓坡倾末端的形式延伸至深凹区,是主要的油气横向输导路径。在建立研究区成藏模式基础上,得出油气横向输导能力与潜山输导脊与烃源岩的接触长度、输导脊的倾角、输导脊之上的圈闭面积有关,并建立半风化岩石输导系数定量表征油气横向输导能力,指导新近系实际勘探。
[Abstract]:The uncertainty of the transversal migration path and transport capacity of the southern segment of the Bodong low uplift influences the establishment of the reservoir forming model and the exploration of the Neogene. Comprehensive use of drilling and logging data, through seismic attribute extraction, core observation and other methods, oil and gas transportation conditions in the study area are analyzed. It is considered that the transverse transport of the skeleton sand body of Guantao formation is limited by the depth of source rock and the development of long-term active faults and its own sand content, while the distribution of transport layer and caprock on the unconformable surface at the top of the volcanic buried hill is good. The primary and secondary pores and fractures are developed in semi-weathered rocks, and the buried hill extends to the deep concave area in the form of gentle slope tilting end, which is the main transversal path of oil and gas. Based on the model of reservoir formation in the study area, it is concluded that the transversal transport capacity of oil and gas is related to the contact length between buried hill transport ridge and source rock, the inclination of transport ridge, and the trap area above the transport ridge. The transmission-coefficient of semi-weathered rock is established to quantitatively characterize the transversal transport ability of oil and gas to guide the actual exploration of Neogene.
【作者单位】：中海石油(中国)有限公司天津分公司;
【基金】：“十二五”国家科技重大专项(2011ZX05023-006-002)
【分类号】：P618.13

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