扎纳若尔油田石炭系划分及沉积特征  

Forma tion Division and Sedi-mentary Characteristics of Carboniferous in Zanazor Oilfield.

作　　者：雍天寿[1] 杨瑞麒[1] 关维东[1] 郎风江[1] 杨智[1] 丁艺[1] 

机构地区：[1]中国石油新疆油田分公司勘探开发研究院,新疆834000

出　　处：《新疆石油地质》2003年第1期92-95,共4页Xinjiang Petroleum Geology

摘　　要：扎纳若尔凝析油气田是新疆油田分公司承担国外油气田研究项目中的第一个中亚地区的油气田。根据大量的测井、岩心以及岩心分析化验资料,通过与中亚地区的达尔瓦兹、费尔干纳等盆地的广泛对比,对油气田含油气层系———石炭系进行了合理划分,修正了前人所确定的上石炭统与下二叠统的地层界限,确认了石炭系内部的3个地层假整合,以及其它海蚀面;从沉积旋回性的分析入手,在含油气层系内部细分为5个油层组19个油层,为油气田开发分析奠定了地质基础;依据岩心描述和岩矿鉴定等资料,第一次对含油气层系进行了细分沉积相研究,认为含油气层的主要沉积相带为浅海的开阔台地相和局限台地相。这些研究成果为该油气田的开发奠定了坚实的地质基础。Zanazor condensate field is the first big oil-gas field in Middle-Asia area among its foreign research projects contracted by PetroChina Xinjiang Oil.According to a lot of data from exploratory and production well logs,core descriptions as well as core lab analyses,an extensive correlation is conducted among Zanazor field,Darwatz basin and Fergana basin in this area,on which more reasonable classifica-tion is performed of Carboniferous,the major petroliferous sequence.Hence,previous boundary between Upper Carboniferous and Lower Per-mian is modified in this paper,confirming three litho-pseudoconformities existed within the Carboniferous and other abrasion surfaces.Fur-thermore,the sequence is subdivided into5sections of reservoirs which include19layers in terms of sedimentary cycle mechanism analysis;the fine depositional facies is studied firstly followed by definition of the primary facies as neritic open tableland facies and restricted platform facies.These results provide solid geologic basis for development of Zanazor field.

关 键 词：石炭系 碳酸盐岩 假整合 化石 沉积旋回 沉积相 扎纳若尔油田 

分 类 号：P618.13[天文地球—矿床学] TE122[天文地球—地质学]