河控三角洲水下分流河道砂体内部建筑结构模式

doi:10.7623/syxb201201013

石油学报 ›› 2012, Vol. 33 ›› Issue (1): 101-105.DOI: 10.7623/syxb201201013

河控三角洲水下分流河道砂体内部建筑结构模式

李志鹏 1　林承焰 1　董　波 2　卜丽侠 3

1 中国石油大学地球科学与技术学院　山东东营　257061；　2 中国石油新疆油田公司百口泉采油厂　新疆克拉玛依　834000；　3 中国石化胜利油田东辛采油厂　山东东营　257061

收稿日期:2011-07-19 修回日期:2011-10-08 出版日期:2012-01-25 发布日期:2012-03-22
通讯作者: 李志鹏
作者简介:李志鹏，男，1983年10月生，2006年毕业于长江大学资源勘查工程专业，2009年获长江大学矿产普查与勘探专业硕士学位，现为中国石油大学（华东）地质资源与地质工程专业在读博士研究生，主要从事石油勘探与油藏描述方面的研究工作。
基金资助:
国家重大科技专项“复杂油气藏精细表征与剩余油分布预测”（2009ZX05009-003）资助。

An internal structure model of subaqueous distributary channel sands of the fluvial-dominated delta

LI Zhipeng 1　LIN Chengyan 1　DONG Bo 2　BU Lixia 3

Received:2011-07-19 Revised:2011-10-08 Online:2012-01-25 Published:2012-03-22

摘要/Abstract

摘要：

单砂体内部夹层及其建筑结构对注入剂驱油以及剩余油的形成作用越来越大。在河控三角洲水下分流河道沉积模式的指导下，利用露头照片和连井剖面资料，建立了河控三角洲水下分流河道砂体的内部结构模式，确定了单一水下分流河道内部夹层的三维展布形态。研究发现，水下分流河道内部存在侧积夹层、前积夹层和垂积夹层3种类型。客观地反映了水下分流河道内部基本单元的三维展布形态，真实再现了水下分流河道砂体的内部建筑结构。

关键词: 河控三角洲, 水下分流河道, 内部建筑结构, 单砂体, 夹层

Abstract:

Thin intercalations and internal structures within mono-sandbody play a more and more important role in injection flooding and remaining oil generation. Based on depositional models of subaqueous distributary channels in the fluvial-dominated delta, we established an internal structure model for subaqueous distributary channels in the fluvial-dominated delta and figured out a three-dimensional distribution mode of intercalations in a single subaqueous distributary channel using data of outcrop photos and well sections. The results show that there are three kinds of intercalations within subaqueous distributary channels. The first is a lateral accretion intercalation that is formed when channels shift laterally, the second is a foreset intercalation that is formed when channel progradation occurs in a front slope, and the third is a vertical accretion intercalation that is formed when channel accretion occurs vertically in a flat area. These different intercalations may objectively reveal a three-dimensional distribution mode of basic units within subaqueous distributary channels and veritably reflect internal structures of subaqueous distributary channel sands in the fluvial-dominated delta.

Key words: fluvial dominated delta, subaqueous distributary channel, internal structure, mono-sandbody, intercalation

李志鹏　林承焰　董　波　卜丽侠. 河控三角洲水下分流河道砂体内部建筑结构模式[J]. 石油学报, 2012, 33(1): 101-105.

LI Zhipeng　LIN Chengyan　DONG Bo　BU Lixia. An internal structure model of subaqueous distributary channel sands of the fluvial-dominated delta[J]. Editorial office of ACTA PETROLEI SINICA, 2012, 33(1): 101-105.

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河控三角洲水下分流河道砂体内部建筑结构模式

An internal structure model of subaqueous distributary channel sands of the fluvial-dominated delta

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