Selection of fracturing wells and layers of Bohai J Oil Field in the late stage of high water cut and its application

YAN Jianli; YAN Guanshan; GU Zhimeng; BIE Mengjun; ZHANG Zhenjie

doi:10.13809/j.cnki.cn32-1825/te.2021.05.011

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Selection of fracturing wells and layers of Bohai J Oil Field in the late stage of high water cut and its application

更新时间：2025-07-10

- Selection of fracturing wells and layers of Bohai J Oil Field in the late stage of high water cut and its application
- Petroleum Reservoir Evaluation and Development Issue 5, Pages: 736-743(2021)
- 作者机构：
  
  中海石油(中国)有限公司天津分公司渤海石油研究院
- 作者简介：
- 基金信息：
- DOI：10.13809/j.cnki.cn32-1825/te.2021.05.011
  CLC： TE53
- Published：2021
- 稿件说明：
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YAN Jianli, YAN Guanshan, GU Zhimeng, et al. Selection of fracturing wells and layers of Bohai J Oil Field in the late stage of high water cut and its application[J]. Petroleum Reservoir Evaluation and Development, 2021, (5): 736-743.
DOI：

YAN Jianli, YAN Guanshan, GU Zhimeng, et al. Selection of fracturing wells and layers of Bohai J Oil Field in the late stage of high water cut and its application[J]. Petroleum Reservoir Evaluation and Development, 2021, (5): 736-743. DOI： 10.13809/j.cnki.cn32-1825/te.2021.05.011.

摘要

针对海上聚驱油田高含水后期剩余油分布复杂及油井压裂选井、选层难度大等问题

综合运用改进后的无因次产液指数计算方法评价油井产液能力

分析了聚驱后油井合理产液变化规律

进而选择无因次产液指数下降幅度大于30%的亟须治理的油井;结合储层精细分析、剩余油精细刻画

进行了高含水后期油藏驱替倍数量化表征和分级评价

有效量化了各层的剩余潜力

建立了渤海J油田高含水后期压裂措施的合理选井、选层的方法和量化依据

保障了海上压裂技术的增油效果。矿场实践表明

该技术方法合理有效

压裂措施实施后单井日增油可达14～42 t

增油效果显著

可为类似处于高含水后期的油田的压裂措施选择及产能改造潜力评价提供借鉴。

Abstract

After the long-term water and polymer flooding

the remaining oil distribution in the late stage of high water cut is complex

and it is difficult to select fracturing wells and layers. In order to solve these problems

an improved calculation method of the dimensionless liquid production index for wells in polymer flooding oilfields is proposed to evaluate the production capability and changes

then the wells that the dimensionless liquid production index dropped more than 30 % are selected. At the same time

combined with the fine geology and reservoir analysis

the quantitative characterization of displacement multiple in the late stage of high water cut is studied and the remaining oil for each layer is evaluated. At last

the method of selecting fracturing well and layer in Bohai J Oil Field is established. Field applications showed that this method was reasonable and effective

the oil production incremental for each well after fracturing is about 14 to 42 tons. It can also provide reference for the selection of fracturing measures and the evaluation of well stimulation potential of similar oilfields in the late stage of high water cut.

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