石油勘探与开发 >

2016 , Vol. 43 >Issue 3: 482 - 489

DOI: https://doi.org/10.11698/PED.2016.03.21

综合研究

辫状河三角洲露头构型——以塔里木盆地库车坳陷三叠系黄山街组为例

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  • 1. 中国石油大学（北京）；
    2. 中国石油塔里木油田公司
朱卫红（1967-）,男,湖北罗田人,中国石油塔里木油田公司教授级高级工程师,主要从事油气田开发研究与管理工作。地址：新疆库尔勒市115号信箱,中国石油塔里木油田公司开发事业部,邮政编码：841000。E-mail：zhuwh-tlm@petrochina.com.cn

网络出版日期: 2017-01-01

基金资助

国家重点基础研究发展计划（973）项目（2011CB201105）

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Braided river delta outcrop architecture: A case study of Triassic Huangshanjie Formation in Kuche depression, Tarim Basin, NW China

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  • 1. China University of Petroleum (Beijing), Beijing 102249, China;
    2. PetroChina Tarim Oilfield Company, Korla 841000, China

Online published: 2017-01-01

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摘要

以储集层构型理论为指导,采用旋回约束、分级解剖分析方法,开展塔里木盆地库车坳陷三叠系黄山街组辫状河三角洲露头构型精细研究。根据沉积旋回、岩相组合特征,在露头上识别出分流河道及分流砂坝2种4级构型单元及相应级次的构型界面。纵向上储集层砂体以分流河道-分流砂坝、分流砂坝-分流砂坝及分流河道-分流河道3种样式叠置;侧向上构型单元之间以分流河道-分流河道切叠和并置、分流砂坝-分流砂坝切叠以及分流砂坝-分流河道切叠4种主要的样式拼接。各4级构型单元叠置、拼接形成复合的5级构型河道充填沉积,并以相应的构型界面分隔,形成复杂的构型样式。4级和5级构型界面降低了储集层砂体的纵、横向连通性并加大了储集层的非均质性。通过实地测量,建立起剖面构型要素数据库,并对参数之间的定量关系进行表征。研究成果为塔里木盆地相似沉积条件的油藏精细构型表征提供了地质依据。图8表1参21

关键词： 塔里木盆地; 库车坳陷; 三叠系黄山街组; 辫状河三角洲; 露头解剖; 构型分析

本文引用格式

朱卫红, 吴胜和, 尹志军, 韩涛, 伍轶鸣, 刘勇, 冯文杰, 罗亚男, 曹岑 . 辫状河三角洲露头构型——以塔里木盆地库车坳陷三叠系黄山街组为例[J]. 石油勘探与开发, 2016 , 43(3) : 482 -489 . DOI: 10.11698/PED.2016.03.21

Abstract

Guided by the theory of reservoir architecture, the architecture of braided river delta of Triassic Huangshanjie Formation in Kuche depression of Tarim Basin was studied using cycle constraints and hierarchical dissection analysis method. According to sedimentary cycle and lithofacies assemblage characteristics, two types (distributary channel and distributary bar) of fourth level architectural units and their boundaries were identified on outcrops. Vertically, the reservoir sand bodies overlay in the three patterns, distributary channel-distributary bar, distributary bar-distributary bar, and distributary channel- distributary channel. Laterally, the architecture units stitching in four patterns, distributary channel-distributary channel intersecting and stacking, distributary channel-distributary bar intersecting and stacking, distributary bar-distributary bar and distributary bar-distributary channel intersecting and stacking. The fourth level units overlay and joint together, forming complex fifth level architectural units of channel filling divided by architectural boundaries of different levels. The fourth and fifth level boundaries reduce the vertical connectivity and enhance the heterogeneity of the reservoir. Through field measurement, profile architecture element database,was established and the quantitative relationship among the parameters was characterized. The research results provide a geological basis for the characterization of fine reservoir architecture of the similar sedimentary conditions in the Tarim Basin.

Key words： Tarim Basin; Kuche depression; Triassic Huangshanjie Formation; braided river delta; outcrop dissection; architectural analysis

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