摘要
近年来在准噶尔盆地陆东地区石炭系火成岩储集层中发现了大量的油气,显示了巨大的勘探潜力。然而已探明或已获得的工业性油气流主要分布在石炭系顶部的风化壳储集层中,而在火成岩内幕储集层中虽见到大量油气显示,但未获得工业性油气流,因此,分析该地区火成岩内幕油气的勘探潜力,对下一步的油气勘探具有重要的指导意义。通过对石炭系火成岩内幕和风化壳储集层特征及油气勘探潜力的对比研究表明,石炭系火成岩孔隙度随着距离石炭系顶部不整合面距离的增加出现两个波峰,分别对应两个次生溶蚀带,第一个波峰对应的为火成岩风化壳储集层,第二个波峰对应的为火成岩内幕储集层;内幕天然气资源量为1 750×108m3;斜坡带为陆东地区石炭系火成岩内幕气藏发育的有利区域。
In recent years,a lot of hydrocarbons have been discovered in the Carboniferous igneous rocks of Ludong area in Junggar basin,which shows great hydrocarbon exploration potentials.However,the proved or discovered commercial oil-gas flow is distributed in the weathering crust reservoir in the top of the Carboniferous,only hydrocarbon shows are found in the inner reservoirs without oil-gas flow.The comparative analysis of the characteristics of weathering crust and inner reservoirs as well as hydrocarbon exploration potential shows that the porosity of the igneous reservoir appears two peaks with increasing distance from the Carboniferous top unconformity surface,which are corresponding to two secondary karst zones.The first one means the weathering crust reservoir,the second one means the inner reservoir; It is found that the amount of gas resource is about 1 750× 108 m3 in the inner reservoir,and the slope zone will be the favorable gas exploration area for the inner reservoir of Carboniferous igneous rocks in Ludong area.
出处
《新疆石油地质》
CAS
CSCD
北大核心
2014年第1期1-4,共4页
Xinjiang Petroleum Geology
作者简介
杨海波（1967-）,男,湖南南县人,高级工程师,石油地质,（Tel）13999302528（E-mail）yhb@petrochina.com.cn.
