Study on the Sedimentary Characteristic on Lower Karamay Formation in 8th Zone of Karamay Oilfield

详细信息   

• 责任者：Chen Lihua (Institute of Geoscience Research ; Shengli Oilfield ; Dongying 257015 ; China) ; Lu Yanqiu
• 刊名：Xinjiang Geology
• 出版年：2012
• 卷期：30(2)
• 关键词：沉积微相 ; sedimentary microfacies ; 油气勘探 ; petroleum exploration ; 新疆 ; Xinjiang
• 页码：p.200-204
• 图表：2 illus., 1 table, 9 refs.
• 分类号：1003
• issnNo：ISSN1000-8845
• isbnNo：CN65-1092/P

摘要

///Lower Karamay in the 8th Zone of Karamay oilfield conglomerate reservoir, as a set of flluvial fan sedimentary in piedmont continental basin margin, has the characteristic that one fan has an independent accumulation system, so, dividing different fans and making clear of the distribution and evolution of fans are necessary for latter fine development. Aiming at these issues, this study makes full use of the data of conglomerate and heavy mineral to determine the existence of three fans at the base of analysing the characteristic of microfacies,the fans have different rang-zone and their evolution is retrogradation from bottom to top. Finally, connected with the oilfield production status, it is thought that productivity and remaining oil are controlled by microfacies, major trough and braided stream are the favorable microfacies which show high productivity and are the main distributed area of remaining oil.