油气地质

红井子地区长 9 油层组成藏模式及主控因素分析

  • 朱筱敏 ,
  • 黄捍东 ,
  • 代一丁 ,
  • 朱世发 ,
  • 陶文芳 ,
  • 刘从印
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  • 1.成都理工大学 沉积地质研究院,成都 610059; 2.中国石油长庆油田分公司 苏里格气田研究中心, 西安 710018; 3.中国石油长庆油田分公司 超低渗透油藏第四项目部,甘肃 庆阳 745100
吴艳艳(1984-),女,成都理工大学在读硕士研究生,研究方向为沉积岩石学与储层矿物岩石学。 地址:(610059)四川省成都市成华区二仙桥东三路 1 号成都理工大学沉积地质研究院。 E-mail:wuyanyan_111@163.com

网络出版日期: 2014-04-06

基金资助

国家“十二五”重大科技专项“鄂尔多斯盆地重点探区碎屑岩沉积体系、储层特征与主控因素”(编号:2011ZX05002-001-001)部分 研究成果

Hydrocarbon accumulation model and main controlling factors of Chang 9 oil reservoir set in Hongjingzi area

  • ZHU Xiaomin ,
  • HUANG Handong ,
  • DAI Yiding ,
  • ZHU Shifa ,
  • TAO Wenfang ,
  • LIU Congyin
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  • 1. Institute of Sedimentary Geology, Chengdu University of Technology, Chengdu 610059, China; 2. Research Center of Sulige Gas Field, PetroChina Changqing Oilfield Company, Xi’an 710018, China; 3. The Fourth Section of Ultra-low Permeability Reservoirs, PetroChina Changqing Oilfield Company, Qingyang 745100, Gansu, China

Online published: 2014-04-06

摘要

鄂尔多斯盆地上三叠统延长组地层沉积厚度大、油气资源丰富,是该盆地油气勘探重要的目的层之 一。 通过对红井子地区长 9 油藏地质背景和油藏特征的研究,综合分析了沉积相、砂体展布、油气输导通 道及运移路径等。 结果表明:该地区长 9 油层组为典型的浅水三角洲沉积体系,整体以长 7 油层组生烃 有机质油源为主;长 7 烃源岩生成的油气以流体过剩压力为主要驱动力,从孔隙和裂缝运移至长 9 油层 组顶部构造并成藏;油源、通道和压差是控制该油层组油气成藏的主要因素

本文引用格式

朱筱敏 , 黄捍东 , 代一丁 , 朱世发 , 陶文芳 , 刘从印 . 红井子地区长 9 油层组成藏模式及主控因素分析[J]. 岩性油气藏, 2014 , 26(2) : 81 -88 . DOI: 10.3969/j.issn.1673-8926.2014.02.013

Abstract

Upper Triassic Yanchang Formation in Ordos Basin is characterized by deep thickness of sedimentation and abundant oil and gas resources, which is one of the most important target zones for oil and gas exploration in the basin. According to the study of geologic background and reservoir characteristics of Chang 9 oil reservoir set in Hongjingzi area, this paper comprehensively analyzed the sedimentary facies, sand body distribution, hydrocarbon migration pathway and paths. The result shows that the Chang 9 oil reservoir set in the study area is typical shallow water delta sedimentary system, with Chang 7 organic material as the main oil sources. The excess fluid pressure is the main driving force for oil and gas generated by Chang 7 hydrocarbon source rocks, which migrated to the top structure of Chang 9 reservoir through the pores and fractures and accumulated. The main controlling factors of hydrocarbon accumulation are oil source, channel and pressure difference.

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