[1]罗立娟.长垣外围扶杨油层注入水构成及注采比优化[J].复杂油气藏,2022,15(04):52-57.[doi:10.16181/j.cnki.fzyqc.2022.04.010]
 LUO Lijuan.Optimization of injection water composition and injection-to-production ratio of Fuyang oil reservoirs in the outer area of Changyuan[J].Complex Hydrocarbon Reservoirs,2022,15(04):52-57.[doi:10.16181/j.cnki.fzyqc.2022.04.010]
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长垣外围扶杨油层注入水构成及注采比优化()
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《复杂油气藏》[ISSN:1674-4667/CN:31-2019/TQ]

卷:
15卷
期数:
2022年04期
页码:
52-57
栏目:
油气开发
出版日期:
2023-02-01

文章信息/Info

Title:
Optimization of injection water composition and injection-to-production ratio of Fuyang oil reservoirs in the outer area of Changyuan
作者:
罗立娟
中国石油大庆油田有限责任公司第十采油厂,黑龙江 大庆 166405
Author(s):
LUO Lijuan
No.10 Oil Production Plant of Daqing Oilfield Co.Ltd.,PetroChina,Daqing 166405,China
关键词:
低、特低渗透注水构成注采比扶杨油层
Keywords:
low and extra-low permeabilityinjection water compositioninjection-to-production ratioFuyang oil reservoir
分类号:
TE348
DOI:
10.16181/j.cnki.fzyqc.2022.04.010
文献标志码:
A
摘要:
长垣外围扶杨油层为低、特低渗透性储层,骨架砂体主要为河道砂,部分区块裂缝相对发育,油田注采比高。从岩心观察和测井砂岩厚度解释着手,储层可分为有效砂岩和非有效砂岩。结合室内岩心吸水实验,证实非有效砂岩有一定的吸水能力。通过构建典型区块三维全地层地质模型,应用数值模拟技术量化区块的注入水构成,明确了高注采比主要是由非有效砂岩和非储层的吸水所致。应用最优理论方法,计算出低渗区块合理注采比为2.0~2.5,特低渗区块合理注采比为2.5~3.9。
Abstract:
The Fuyang Formation in the outer area of Changyuan is a low and extra-low permeability reservoir,the skeletal sandbody is mainly river sandbody,some blocks have relatively developed fractures,and the oilfield has a high injection-to-production ratio. Starting from core observation and logging interpretation of sandstone thickness,the reservoir can be divided into effective sandstone and non-effective sandstone. Combined with the indoor core water absorption experiments,it is confirmed that the non-effective sandstone has a certain water absorption ability. By constructing a three-dimensional full stratigraphic geological model of a typical block and applying numerical simulation techniques to quantify the injection water composition of the block,it is clear that the high injection-to-production ratio is mainly caused by the water absorption of non-effective sandstone and non-reservoir. Applying the optimization theory method,a reasonable injection-to-production ratio is 2.0 to 2.5 for low permeability blocks and 2.5 to 3.9 for extra-low permeability blocks,respectively.

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备注/Memo

备注/Memo:
收稿日期:2022-02-16;改回日期:2022-04-20。
作者简介:罗立娟(1981—),女,工程师,现主要从事油田开发研究工作。E-mail:325075510@qq.com。
基金项目:国家科技重大专项“大型油气田及煤层气开发”(2016ZX05013006)。
更新日期/Last Update: 2022-12-25