摘要
通过对银根—额济纳旗盆地与二连盆地的中生代地层、区域地质构造、岩浆活动、烃源岩、储层、油气成藏特征、油气分布规律及深部地壳构造等的研究,表明两盆地的区域地质及石油地质特征具有相似性。但二连盆地下白垩统储层的孔隙度和渗透率比银根—额济纳旗盆地要好得多。提出了银根—额济纳旗盆地的下一步勘探方向:在东部,以岩性、地层、古潜山(火山岩或花岗岩)油藏为主;在西部,以侏罗系、下白垩统及古潜山(前中生界花岗岩)油藏为主。
Based on the comparative study of Yingen-Ejinaqi Basin and Erlian Basin from the aspects of Mesozoic strata, regional structures, magmatic activity, source rocks, reservoir, oil and gas reservoir formation characteristics, oil and gas distribution, and deep crustal structure, it shows that these two basins are similar to each other in regional geology and petroleum geological features. However, the reservoir porosity and permeability of lower Cretaceous in Erlian Basin is better than that of Yingen-Ejinaqi Basin. It points out the targets for next exploration in Yingen-Ejinaqi Basin are the lithologic and stratigraphic as well as buried hilt reservoirs (volcanic rock and granite) in the cast, the Jurassic and Lower Cretaceous as well as buried hill (pre Mesozoic granite) reservoirs in the west.
出处
《中国石油勘探》
CAS
2007年第1期33-37,59,共6页
China Petroleum Exploration
基金
中国石油天然气集团公司"九五"油气勘探科技工程项目"中国北方侏罗系"所属课题"河西走廊-银根诸盆地综合评价及勘探目标选择"(970207-34(2))。
关键词
石油地质特征
比较研究
岩性地层油藏
古潜山
远景评价
银根-额济纳旗盆地
二连盆地
petroleum geological feature
comparative analysis
Jurassic
Cretaceous
Iitho-stratigraphhic reservoir
buried hill
prospective evaluation
Yingen-Ejinaqi Basin
Erlian Basin
