砂质辫状河储层构型表征方法——以苏丹穆格莱特盆地Hegli油田为例

doi:10.7623/syxb201404012

石油学报 ›› 2014, Vol. 35 ›› Issue (4): 715-724.DOI: 10.7623/syxb201404012

砂质辫状河储层构型表征方法——以苏丹穆格莱特盆地Hegli油田为例

孙天建¹, 穆龙新¹, 吴向红¹, 赵国良¹, 徐锋¹, 王振军², 覃志², 方子奇³

1. 中国石油勘探开发研究院北京 100083;
2. 中国石油吉林油田公司勘探开发研究院吉林松原 138000;
3. 石油工业出版社有限公司北京 100011

收稿日期:2014-02-21 修回日期:2014-05-12 出版日期:2014-07-25 发布日期:2014-08-05
通讯作者: 孙天建，男，1978年4月生，2003年获江汉石油学院学士学位，2012年获中国地质大学（北京）博士学位，现为中国石油勘探开发研究院博士后，主要从事油气田开发地质方面的研究。Email：suntianjian@petrochina.com.cn
作者简介:孙天建，男，1978年4月生，2003年获江汉石油学院学士学位，2012年获中国地质大学（北京）博士学位，现为中国石油勘探开发研究院博士后，主要从事油气田开发地质方面的研究。Email：suntianjian@petrochina.com.cn
基金资助:
中国石油天然气集团公司重大科技专项（2011E-2507）资助。

A quantitative method for architectural characterization of sandy braided-river reservoirs：taking Hegli oilfield of Muglad Basin in Sudan as an example

Sun Tianjian¹, Mu Longxin¹, Wu Xianghong¹, Zhao Guoliang¹, Xu Feng¹, Wang Zhenjun², Qin Zhi², Fang Ziqi³

1. PetroChina Research Institute of Petroleum Exploration & Development, Beijing 100083, China;
2. Institute of Petroleum Exploration & Development, PetroChina Jilin Oilfield Company, Jilin Songyuan 138000, China;
3. Petroleum Industry Press co., LTD, Beijing 100011, China

Received:2014-02-21 Revised:2014-05-12 Online:2014-07-25 Published:2014-08-05

摘要/Abstract

摘要：

分析了苏丹穆格莱特盆地Hegli油田S1A单层砂质辫状河沉积微相特征，识别了砂质辫状河储层不同层次的构型界面，将其划分为辫流带、单砂体和心滩内增生体3个层次，明确了目的层辫状河道具有泥质充填、半泥质充填和砂质充填3种模式。依据砂质辫状河储层不同层次构型单元规模的计算公式，实现了砂质辫状河储层的辫流带、单砂体和心滩内增生体规模的定量表征，形成了一套砂质辫状河储层不同层次构型单元定量表征的方法。定量表征的结果表明，研究区辫流带宽度约3 200 m，心滩宽度350~900 m，心滩长度1 200~3 200 m，单河道宽度100~300 m，增生体的宽度和长度分别为100~400 m和700~2 000 m。以不同构型单元定量表征的规模为约束条件，采用相控与人机交互的方法，建立了能够反映辫状河储层构型空间分布特征的三维地质模型。

关键词: 苏丹, 砂质辫状河, 层次分析, 储层构型, 构型建模

Abstract:

The characteristics of microfaces in single-layer sandy braided-river deposits of the S1A of the Hegli oilfield, Muglad Basin, Sundan are analyzed, and three hierarchical levels of architecture interfaces in sandy braided-river reservoirs are identified, including single braided channel belt, single sand body, and single accretion of channel bar. The target braided channels are filled in three models with mudstone, semi-mudstone, and sand bodies, respectively. The scales of architectural units at different hierarchical levels in sandy braided-river reservoirs are quantitatively characterized using specific calculation formulas, and a set of methods for quantitative characterization of architectural units in sandy braided-river reservoirs is developed. The results of sing-level quantitative characterization show that single belts are approximately 3 200 m wide; single channel bars are 350-900 m wide and 1 200-3 200 m long; single channels are 100-300 m wide; and single accretions are 100-400 m wide and 700-2 000 m long in S1A of the study area. With the constraint of the scale for quantitative characterization of different architectural units, a three-dimensional geological model is built using facies-control and man-computer interaction method to accurately delineate spatial distribution pattern of architectural units in sandy braided-river reservoirs.

Key words: Sudan, sandy braided river, analytical hierarchy process, reservoir architecture, architecture model

中图分类号:

TE122.14

孙天建, 穆龙新, 吴向红, 赵国良, 徐锋, 王振军, 覃志, 方子奇. 砂质辫状河储层构型表征方法——以苏丹穆格莱特盆地Hegli油田为例[J]. 石油学报, 2014, 35(4): 715-724.

Sun Tianjian, Mu Longxin, Wu Xianghong, Zhao Guoliang, Xu Feng, Wang Zhenjun, Qin Zhi, Fang Ziqi. A quantitative method for architectural characterization of sandy braided-river reservoirs：taking Hegli oilfield of Muglad Basin in Sudan as an example[J]. ACTA PETROLEI SINICA, 2014, 35(4): 715-724.

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砂质辫状河储层构型表征方法——以苏丹穆格莱特盆地Hegli油田为例

A quantitative method for architectural characterization of sandy braided-river reservoirs：taking Hegli oilfield of Muglad Basin in Sudan as an example

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