摘要
Abstract
The Wuqi area of Ordos basin, which posses abundant resources, has bright prospect in oil and gas exploration.The article takes the change6 in Wuqi oilfield as the object of study.By collecting data about out crop core, logging, analysis and test, at the same time using sedimentary analysis and geological analysis, in the thesis, sequence division is applied.Types of sedimentary facies are identified, the extension of sand bodies, distribution of sedimentary facies of Chang6 oil-bearing beds of Yanchang6 Formation in Wuqi are realized by there search above.These characteristics, to find out the favorable target horizon reservoir of exploration and development of oil and gas reservoirs, provide important geological basis.Researches show that this area belongs to Delta Front, underwater distributary channel, mouth bars, inter distributary are the major sediment microfacies, and according to the rock types, sedimentary cyclical characteristic and well logging data, classify sedimentary microfacies.The river channel direction of Wuqi oilfield is northeast-southwest.The channel develops steady and sand body is distributed banding.关键词
鄂尔多斯盆地/吴起油田/长6油层组/沉积微相Key words
Ordos basin/Wuqi area/Chang6 oil bearing formation/microfacies分类
天文与地球科学
