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[1]权 勃 侯东梅 牟松茹 杨建民 张文童 黄 奇.基于水平井信息的辫状河储层构型单元空间展布研究[J].中国海上油气,2020,32(04):96-103.[doi:10.11935/j.issn.1673-1506.2020.04.011]
 QUAN Bo HOU Dongmei MOU Songru YANG Jianmin ZHANG Wentong HUANG Qi.Study on configuration unit spatial distribution of braided river reservoirs based on horizontal well information[J].China Offshore Oil and Gas,2020,32(04):96-103.[doi:10.11935/j.issn.1673-1506.2020.04.011]
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基于水平井信息的辫状河储层构型单元空间展布研究()

《中国海上油气》[ISSN:1673-1506/CN:11-5339/TE]

卷:
第32卷
期数:
2020年04期
页码:
96-103
栏目:
油气田开发
出版日期:
2020-07-25

文章信息/Info

Title:
Study on configuration unit spatial distribution of braided river reservoirs based on horizontal well information
文章编号:
1673-1506(2020)04-0096-08
作者:
权 勃1 侯东梅1 牟松茹1 杨建民1 张文童1 黄 奇2
(1. 中海石油(中国)有限公司天津分公司渤海石油研究院 天津 300459; 2. 武汉时代地智科技股份有限公司 湖北武汉 430000)
Author(s):
QUAN Bo1 HOU Dongmei1 MOU Songru1 YANG Jianmin1 ZHANG Wentong1 HUANG Qi2
(1. Bohai Petroleum Research Institute, CNOOC China Limited, Tianjin Branch, Tianjin 300459, China; 2.Wuhan Times GeoSmart Science and Technology Co., Ltd., Wuhan, Hubei 430000, China)
关键词:
辫状河 水平井 储层构型单元 空间展布 定量规模
Keywords:
braided river horizontal well reservoir configuration unit spatial distribution quantitative scale
分类号:
TE32+1
DOI:
10.11935/j.issn.1673-1506.2020.04.011
文献标志码:
A
摘要:
海上油田多采用水平井开发且井距大,不同构型单元定量规模及其空间展布特征存在较大不确定性。为发挥水平井横向信息丰富的优势,利用岩心、测井、地震和生产动态等资料,基于水平井信息开展了辫状河储层构型单元空间展布特征研究。在构型单元划分与分析的基础上,利用成像探边资料标定了水平井测井相,综合考虑构造、水平井井轨迹位置、围岩影响等因素,构建了辫状河不同构型单元水平井测井相模式,厘清了其空间组合关系,并利用水平井信息验证了基于现代沉积和野外露头统计分析得到的构型单元定量规模经验公式。以沉积模式为指导,以构型单元地质知识库作为规模约束,采用水平井测井约束的地震波阻抗反演预测了砂体分布,按照“井震结合、厚度控制、规模约束”的思路完成了构型单元侧向划界,弄清了砂质辫状河储层内部构型单元空间展布,并通过油藏数值模拟验证了预测结果的可靠性。研究表明,水平井丰富的横向信息可以极大地降低井间储层预测和构型单元空间展布研究的不确定性
Abstract:
The topographic slope changes greatly and the stratigraphic thickness varies to certain extent in the slope belts of fault basin, which brings difficulty in the sequence isochronous contrast analysis. In the case of the I and II reservoirs of the lower part of the second Member of the Palaeogene Dongying Formation of Bohai SZ oilfield, the target layer of the study area is identified as delta front progradational sequence by using data of logging, seismic and core, and based on high resolution sequence stratigraphy, sedimentology, and seismic sedimentology. The type of foreset bed is determined to be free of topset bed through seismic forward modeling and frequency division interpretation. Under the control of marker layers, SSC1 and SSC4 short-term cycle planes are divided into single-phase axis region, complex-phase axis region, bifurcate single-phase axis region and bifurcate complex-phase axis region according to the shape of seismic reflection axis. The region-based progradation angle calculation method is proposed. In other words, under the condition that the marker layer at the top of the target layer is flush, the progradation angle in each region can be determined by combining the seismic profile with the cross-well section according to the variation of interwell thickness in foreset bed. Because the single-phase axis region is of approximately equal thickness, the near-horizontal mode comparison is adopted. The target layer of the study area can be divided into 2 medium-term base level cycles(MSC), 14 short-term base level cycles(SSC)and 26 super-short term base level cycles(SSSC)according to the changes in base level cycles of different grades. The high resolution isochronal stratigraphic framework of medium-term and short-term base level cycles is established, and the isochronous correlation of super-short term base level cycles is fulfilled

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备注/Memo

备注/Memo:
收稿日期:2019-06-20 改回日期:2019-10-28*“十三五”国家科技重大专项“渤海油田高效开发示范工程(三期)-渤海油田加密调整及提高采收率油藏工程技术示范(编号:2016ZX05058-001)”部分研究成果。 第一作者简介: 权勃,男,工程师,主要从事油气田开发地质、储层三维建模研究工作。地址:天津市滨海新区海川路2121号渤海石油管理局B座1201室(邮编:300459)。E-mail:quanbo@cnooc.com.cn。
更新日期/Last Update: 2020-07-20