[1]王春伟.辫状河储层非均质性特征与剩余油分布[J].复杂油气藏,2022,15(01):48-52.[doi:10.16181/j.cnki.fzyqc.2022.01.010]
 WANG Chunwei.Heterogeneity characteristics and remaining oil distribution of braided river reservoir[J].Complex Hydrocarbon Reservoirs,2022,15(01):48-52.[doi:10.16181/j.cnki.fzyqc.2022.01.010]
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辫状河储层非均质性特征与剩余油分布()
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《复杂油气藏》[ISSN:1674-4667/CN:31-2019/TQ]

卷:
15卷
期数:
2022年01期
页码:
48-52
栏目:
油气开发
出版日期:
2022-03-25

文章信息/Info

Title:
Heterogeneity characteristics and remaining oil distribution of braided river reservoir
作者:
王春伟
中石化经纬有限公司,山东 东营 257015
Author(s):
WANG Chunwei
Sinopec Jingwei Co.,LTD.,Dongying 257015,China
关键词:
辫状河油藏储层非均质剩余油孔店油田
Keywords:
braided river reservoirreservoir heterogeneityresidual oilKongdian Oilfield
分类号:
TE321
DOI:
10.16181/j.cnki.fzyqc.2022.01.010
文献标志码:
A
摘要:
辫状河油藏是河流相油藏的主要类型之一,进入高含水期后,储层的非均质性严重制约着老油田的高效开发,因此,对辫状河油藏的层内非均质性研究对油田开发具有重要意义。以岩心分析、测井解释资料为基础,充分结合动态开发数据,进行了孔店油田馆陶组辫状河油藏的储层非均质性研究。结果表明:研究区主要沉积单元辫状河道及心滩储层非均质性受控于垂积作用、前积作用、填积作用以及漫积作用4种沉积作用;心滩以复合正韵律为主,稳定夹层多,而辫状河道以正韵律为主,稳定夹层少,油组、小层间隔层分布稳定,单层间隔层分布相对不稳定,平面砂体形态复杂多样;剩余油分布在层顶部以及夹层底部、物性差的主力含油层位,以及平面低渗带和过渡带。研究结果对辫状河油藏开发具有一定的指导意义。
Abstract:
One of the most common types of fluvial reservoirs is the braided river reservoir. The heterogeneity of the reservoir severely limits the efficient development of old oilfields once they reach the high water-cut stage. As a result,research on intralayer heterogeneity in braided river reservoirs is crucial for oilfield development. The reservoir heterogeneity of a braided river reservoir in the Guantao Formation of the Kongdian Oilfield is investigated using core analysis,well logging interpretation data,and dynamic development data. The results indicate that four types of depositional processes control the heterogeneity of braided channel and central bank reservoirs in the research area’s main sedimentary units: vertical deposition,foredeposition,filling,and flooding;compound positive rhythms dominate the core beach,with many stable interlayers,whereas positive rhythms dominate the braided channel,with less stable interbeds,stable distribution of oil groups and small interlayers,and relatively unstable distribution of single-layer interlayers,as well as a complex and diverse flat sandbody shape;the remaining oil is distributed at the layer’s top and bottom,the major oil-bearing layer with poor physical properties,and the flat low permeability zone and transition zone. The research results have a certain guiding significance for braided river reservoir development.

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备注/Memo

备注/Memo:
收稿日期:2021-08-13;改回日期: 2021-10-13 。作者简介:王春伟(1988—),硕士,工程师,主要从事油气田开发地质研究。E-mail:584019559@qq.com。
基金项目:国家重点研发计划项目“油/水/固界面浸润调控智能流体提高采收率关键材料与机理研究”(2019YFA0708700)。
更新日期/Last Update: 1900-01-01