摘要
准噶尔盆地哈拉阿拉特山地区中二叠统夏子街组为近物源扇三角洲沉积,其纵向切割叠置,厚度大,沉积格局复杂。通过精细研究对比发现,哈拉阿拉特山西部及东部地区虽都发育扇三角洲沉积,但在相标志、搬运机制、砂体特征等方面存在明显的差异。综合岩心、测录井等多种资料,运用沉积特征及岩电分析等手段研究后认为,西部地区为陡坡重力流为主的靠山型扇三角洲,东部地区为缓坡牵引流为主的靠扇型扇三角洲,2种不同类型的扇三角洲具有不同的储集层物性及储集层分布格局。这一认识对油气的勘探具有一定的指导意义。
Middle Permian Xiazijie formation in the Hala’alate Mountain area of Junggar basin is a set of thick,near?source fan delta depositions,which are incised and superimposed vertically with a complex sedimentary framework.The comprehensive study result shows the fan deltas in the western part of Hala’alate Mountain are obviously different from the ones in the eastern part in facies markers,transportation mechanism and sand body characteristics and so on.Based on the core data,log data and analysis of petrophysical and electrical properties,it is considered that the near?mountain fan delta dominated by steep?slope gravity current is developed in the western part,and nearfan fan delta dominated by gentle?slope tractive current is found in the eastern part of the Hala’alate Mountain,and the two types of fan deltas have distinct reservoir properties and different distribution patterns,which could be a guidance for oil and gas exploration.
作者
陈学国
仲维苹
徐后伟
张关龙
王有涛
CHEN Xueguo;ZHONG Weiping;XU Houwei;ZHANG Guanlong;WANG Youtao(Western New Area, Research Institute of Exploration and Development, Shengli Oilfield Company, Sinopec,Dongying, Shandong 257000, China;Research Institute of Exploration and Development, Xinjiang Oilfield Company, PetroChina,Karamary, Xinjiang 834000, China)
出处
《新疆石油地质》
CAS
CSCD
北大核心
2017年第3期276-280,共5页
Xinjiang Petroleum Geology
基金
国家科技重大专项(2011ZX05002-002)
