Relationship between dynamic change of flow unit and distribution of remaining oil before and after the development of tight oil reservoir

YIN Hu; QU Hongjun; ZHANG Leigang; SUN Xiaohan; ZHU Rongxing; YANG Xiaofeng; SU Shuai

doi:10.16152/j.cnki.xdxbzr.2026-01-016

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Relationship between dynamic change of flow unit and distribution of remaining oil before and after the development of tight oil reservoir

更新时间：2026-02-24

- Relationship between dynamic change of flow unit and distribution of remaining oil before and after the development of tight oil reservoir
- Journal of Northwest University (Natural Science Edition) Vol. 56, Issue 1, Pages: 171-186(2026)
- 作者机构：
  
  1.西北大学　地质学系/大陆动力学国家重点实验室，陕西　西安　710069
  2.延长油田股份有限公司富县采油厂，陕西　富县　727500
- 作者简介：
- 基金信息：
- DOI：10.16152/j.cnki.xdxbzr.2026-01-016
  CLC： TE121
- Received：24 March 2025，
  
  Revised：2025-07-20，
  
  Published：25 February 2026
- 稿件说明：
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YIN Hu, QU Hongjun, ZHANG Leigang, et al. Relationship between dynamic change of flow unit and distribution of remaining oil before and after the development of tight oil reservoir[J]. Journal of Northwest University (Natural Science Edition), 2026, 56(1): 171-186.
DOI：

YIN Hu, QU Hongjun, ZHANG Leigang, et al. Relationship between dynamic change of flow unit and distribution of remaining oil before and after the development of tight oil reservoir[J]. Journal of Northwest University (Natural Science Edition), 2026, 56(1): 171-186. DOI： 10.16152/j.cnki.xdxbzr.2026-01-016.

摘要

以鄂尔多斯盆地长8致密油藏为例，利用聚类分析方法，根据有效厚度、孔隙度、渗透率、储层品质因子和含油饱和度5个参数划分出4类原始流动单元，在静态参数的基础上，根据储层加砂强度、产液量2个动态参数将研究区储层划分为4类开发后流动单元，并对开发前后流动单元进行三维建模，对流动单元的分布特征进行分析；结合剩余油数值模拟研究，对研究区油藏进行挖潜级别划分并给出了开发策略。研究表明，沉积相展布控制着原始流动单元分布，高级别流动单元沿着主河道分布延伸，砂体厚度大，砂体呈叠加式连续展布；低级别流动单元分布于主河道两侧，砂体厚度变小，砂体呈分离式。开发方式控制着动态流动单元，经压裂改造后，井周流动单元普遍优于井间流动单元。油藏经过压裂改造及阶段开采后，流动单元A类和B类区由于流动性强、采出程度高导致含油饱和度逐渐降低，剩余油富集区逐渐向流动性相对较差的C类和D类流动单元转移。根据开发后流动单元分布和剩余油展布特征，可将开发区块划分为6种挖潜级别，一级挖潜区剩余油含量和开发后流动单元级别均高，为下一步生产开发的首选区域；二级挖潜区开发后流动单元级别较低，但剩余油多，可配合一级挖潜储层进行共同开发。本研究可为同类型的致密油藏流动单元研究和后期开发方案调整提供借鉴意义。

Abstract

Taking the Chang 8 tight reservoir in Ordos Basin as an example

the cluster analysis method is used to divide the reservoir into four types of initial flow units according to the five static parameters of effective thickness

porosity

permeability

reservoir quality factor

and oil saturation. On the basis of static parameters

the reservoir in the study area is divided into four types of developed flow units according to the two dynamic parameters of reservoir sand strength and liquid production. The three-dimensional modeling of the flow units before and after development is carried out

and the distribution characteristics of the flow units are analyzed. Combined with the numerical simulation of remaining oil

some suggestions are put forward for the subsequent reservoir potential tapping scheme. The research shows that the distribution of sedimentary facies controls the distribution of static flow units

and the high-level flow units extend along the main channel. The thickness of sand bodies is large

and the sand bodies are superimposed and continuously distributed. The low-level flow units are distributed on both sides of the main channel

the thickness of the sand body becomes smaller

and the sand body is separated. The development method controls the dynamic flow unit. After fracturing

the flow unit around the well is generally better than the inter well flow unit. After stage oil recovery and fracturing

the fluidity of the Class A and Class B of flow unit and the initial high value of oil saturation increases while the oil saturation decreases

resulting in the remaining oil-rich area being transformed into Class C and Class D flow units with relatively poor fluidity. Based on the distribution of developed flow units and the distribution characteristics of remaining oil

the reservoir can be divided into six potential tapping levels. The remaining oil content and developed flow unit level of the first-level potential tapping reservoir are high

which is the preferred area for the next production and development. The developed flow unit level of the second-level potential tapping reservoir is low but the remaining oil content is high

which can be jointly developed with the first-level potential tapping reservoir. The research provides reference for the study of flow units and the adjustment of later development schemes in the same type of tight oil reservoirs.

关键词

Keywords

references

HEARN C L , EBANKS W J , RNGANATH V , et al . Geological factors influencing reservoir performance of the hartzog draw field, wyoming [J ] . Journal of Petroleum Technolpgy , 1984 , 36 ( 8 ): 1335 - 1344 .

EBANKS W J . Flow unit concept: Integrated approach to reservoir description for engineering projects [J ] . AAPG Bulletin , 1987 , 71 ( 5 ): 551 - 552 .

MOSS A K , JING X D , ARCHER J S . Laboratory investigation of wettability and hysteresis effects on resistivity index and capillary pressure characteristics [J ] . Journal of Petroleum Science and Engineering , 1999 , 24 ( 2/3/4 ): 231 - 242 .

岳大力 , 吴胜和 , 林承焰 . 碎屑岩储层流动单元研究进展 [J ] . 中国科技论文在线 , 2008 , 3 ( 11 ): 810 - 818 .

YUE D L , WU S H , LIN C Y . Research progress in flow unit of clastic reservoir [J ] . Sciencepaper Online , 2008 , 3 ( 11 ): 810 - 818 .

康立明任战利 . 多参数定量研究流动单元的方法：以鄂尔多斯盆地W93井区为例 [J ] . 吉林大学学报(地球科学版) , 2008 , 38 ( 5 ): 749 - 756 .

KANG L M , REN Z L . Study on multi-parameters discrimination method for flow units: Taking W93 Wellblock in Ordos Basin as an example [J ] . Journal of Jilin University (Earth Science Edition) , 2008 , 38 ( 5 ): 749 - 756 .

JAWAP S N A , SALEH A H , DABAJ A A A , et al . Reservoir flow unit identification of the Mishrif Formation in North Rumaila Field [J ] . Arabian Journal of Geosciences , 2014 , 7 ( 7 ): 2711 - 2728 .

罗超 , 罗水亮 , 窦丽玮 , 等 . 基于高分辨率层序地层的储层流动单元研究 [J ] . 中国石油大学学报(自然科学版) , 2016 , 40 ( 6 ): 22 - 32 .

LUO C , LUO S L , DOU L W , et al . Research on flow units based on high resolution stratigraphic sequence [J ] . Journal of China University of Petroleum (Edition of Natural Science) , 2016 , 40 ( 6 ): 22 - 32 .

EINAGGAR O M . A new processing for improving permeability prediction of hydraulic flow units, Nubian Sandstone, Eastern Desert, Egypt [J ] . Journal of Petroleum Exploration and Production Technology , 2018 , 8 ( 3 ): 677 - 683 .

SHEDID S A . A new technique for identification of flow units of shaly sandstone reservoirs [J ] . Journal of Petroleum Exploration and Production Technology , 2018 , 8 ( 2 ): 495 - 504 .

YUSUF I , PADMANABHAN E . Impact of rock fabric on flow unit characteristics in selected reservoir sandstones from West Baram Delta Offshore, Sarawak [J ] . Journal of Petroleum Exploration and Production Technology , 2019 , 9 ( 3 ): 2149 - 2164 .

KASSAB M A , TEAMA M A . Hydraulic flow unit and facies analysis integrated study for reservoir characterisation: A case study of Middle Jurassic rocks at Khashm El-Galala, Gulf of Suez, Egypt [J ] . Arabian Journal of Geosciences , 2018 , 11 ( 12 ): 294 - 307 .

岳大力 , 吴胜和 , 程会明 , 等 . 基于三维储层构型模型的油藏数值模拟及剩余油分布模式 [J ] . 中国石油大学学报(自然科学版) , 2008 , 32 ( 2 ): 21 - 27 .

YUE D L , WU S H , CHENG H M , et al . Numerical reservoir simulation and remaining oil distribution patterns based on 3D reservoir architecture model [J ] . Journal of China University of Petroleum (Edition of Natural Science) , 2008 , 32 ( 2 ): 21 - 27 .

张建兴 , 林承焰 , 张宪国 , 等 . 基于储层构型与油藏数值模拟的点坝储层剩余油分布研究 [J ] . 岩性油气藏 , 2017 , 29 ( 4 ): 146 - 153 .

ZHANG J X , LIN C Y , ZHANG X G , et al . Remaining oil distribution of point bar reservoir based on reservoir architecture and reservoir numerical simulation [J ] . Lithologic Reservoirs , 2017 , 29 ( 4 ): 146 - 153 .

商建霞 , 张乔良 , 李华 , 等 . 基于储层构型的渗流单元刻画方法及应用：以珠江口盆地文昌C油田为例 [J ] . 沉积学报 , 2021 , 39 ( 4 ): 1020 - 1030 .

SHANG J X , ZHANG Q L , LI H , et al . Characterization method and application of seepage units based on reservoir configuration: A case study of the Wenchang C oilfield in the Pearl River Mouth Basin [J ] . Acta Sedimentologica Sinica , 2021 , 39 ( 4 ): 1020 - 1030 .

袁丙龙 , 张辉 , 叶青 , 等 . 基于三角洲复合砂体构型的流动单元划分及剩余油分布模式 [J ] . 沉积学报 , 2021 , 39 ( 5 ): 1253 - 1263 .

YUAN B L , ZHANG H , YE Q , et al . Flow-unit classification based on compound sand-body architecture of delta and distribution pattern of remaining oil [J ] . Acta Sedimentologica Sinica , 2021 , 39 ( 5 ): 1253 - 1263 .

张皓宇 , 李茂 , 康永梅 , 等 . 鄂尔多斯盆地镇北油田长3油层组储层构型及剩余油精细表征 [J ] . 岩性油气藏 , 2021 , 33 ( 6 ): 177 - 188 .

ZHANG H Y , LI M , KANG Y M , et al . Reservoir architecture and fine characterization of remaining oil of Chang 3 reservoir in Zhenbei oilfield, Ordos Basin [J ] . Lithologic Reservoirs , 2021 , 33 ( 6 ): 177 - 188 .

王亚 , 刘宗宾 , 路研 , 等 . 基于SSOM的流动单元划分方法及生产应用——以渤海湾盆地F油田古近系沙三中亚段湖底浊积水道为例 [J ] . 岩性油气藏 , 2024 , 36 ( 2 ): 160 - 169 .

WANG Y , LIU Z B , LU Y , et al . Flow unit division based on SSOM and its production application: A case study of sublacustrine turbidity channels of middle Es3 in F oilfield, Bohai Bay Basin [J ] . Lithologic Reservoirs , 2024 , 36 ( 2 ): 160 - 169 .

万琼华 , 吴胜和 , 陈亮 , 等 . 基于深水浊积水道构型的流动单元分布规律 [J ] . 石油与天然气地质 , 2015 , 36 ( 2 ): 306 - 313 .

WAN Q H , WU S H , CHEN L , et al . Analysis of flow unit distribution based on architecture of deep-water turbidite channel systems [J ] . Oil & Gas Geology 2015 , 36 ( 2 ): 306 - 313 .

郑香伟 , 吴健 , 何胜林 , 等 . 基于流动单元的砂砾岩储层渗透率测井精细评价 [J ] . 吉林大学学报(地球科学版) , 2016 , 46 ( 1 ): 286 - 294 .

ZHENG X W , WU J , HE S L , et al . Fine evaluation of permeability of conglomerate reservoir based on flow unit [J ] . Journal of Jilin University (Earth Science Edition) , 2016 , 46 ( 1 ): 286 - 294 .

韩大匡 . 准确预测剩余油相对富集区提高油田注水采收率研究 [J ] . 石油学报 , 2007 , 28 ( 2 ): 73 - 78 .

HAN D K . Precisely predicting abundant remaining oil and improving the secondary recovery of mature oil fields [J ] . Acta Petrolei Sinica , 2007 , 28 ( 2 ): 73 - 78 .

周游 , 李治平 , 景成 , 等 . 基于流动单元控制的油藏宏观剩余油潜力分布 [J ] . 特种油气藏 , 2016 , 23 ( 6 ): 35 - 39 .

ZHOU Y , LI Z P , JING C , et al . Distribution of macroscopic remaining-oil potential based on flow-unit [J ] . Special Oil & Gas Reservoirs , 2016 , 23 ( 6 ): 35 - 39 .

王志松 , 欧成华 , 侯庆杰 , 等 . H油田延6段储层流动单元划分与剩余油分布研究 [J ] . 重庆科技学院学报(自然科学版) , 2014 , 16 ( 4 ): 13 - 16 .

WANG Z S , OU C H HOU Q J , et al . Research on flow unit classification and remaining oil distribution to Yan 6 of Oilfield H [J ] . Journal of Chongqing University of Science and Technology (Natural Science Edition) , 2014 , 16 ( 4 ): 13 - 16, 25 .

刘如昊 , 孙雨 , 闫百泉 , 等 . 动静结合下储层流动单元研究——以孤岛油田M区新近系馆陶组为例 [J ] . 沉积学报 , 2023 , 41 ( 4 ): 1170 - 1180 .

LIU R H , SUN Y , YAN B Q , et al . Reservoir flow units for dynamic and static combinations: Case study of Neogene Guantao Formation in block M, Gudao Oilfield [J ] . Acta Sedimentologica Sinica , 2023 , 41 ( 4 ): 1170 - 1180 .

林承焰 , 孙廷彬 , 董春梅 , 等 . 基于单砂体的特高含水期剩余油精细表征 [J ] . 石油学报 , 2013 , 34 ( 6 ): 1131 - 1136 .

LIN C Y , SUN T B , DONG C M , et al . Fine characterization of remaining oil based on a single sand body in the high water cut period [J ] . Acta Petrolei Sinica , 2013 , 34 ( 6 ): 1131 - 1136 .

宋广寿 , 孙卫 , 高辉 , 等 . 储层流动单元划分及其对产能动态的影响——以鄂尔多斯盆地元54区长1油层组为例 [J ] . 西北大学学报(自然科学版) , 2010 , 40 ( 2 ): 299 - 303 .

SONG G S , SUN W , GAO H , et al . The classification of flow units and its influence on deliverability performance: A case of the Chang 1 formation of Yuan 54 Areas in Ordos Basin [J ] . Journal of Northwest University (Natural Science Edition) , 2010 , 40 ( 2 ): 299 - 303 .

MODE A W , ANYIAM O A , ONWUCKEKWA C N . Flow unit characterization: Key to delineating reservoir performance in "Aqua-Field", Niger Delta, Nigeria [J ] . Journal of the Geological Society of India , 2014 , 84 ( 6 ): 701 - 708 .

LOPEZ B , AGUILERA R . Flow units in shale condensate reservoirs [J ] . SPE Reservoir Evaluation and Engineering , 2016 , 19 ( 3 ): 450 - 465 .

李海燕 , 彭仕宓 , 刘风喜 . 储层动态流动单元研究：以别古庄油田京11断块为例 [J ] . 油气地质与采收率 , 2007 , 14 ( 2 ): 67 - 70 .

LI H Y , PENG S M , LIU F X . Reservoir dynamic flow unit models of Jing 11 block in Bieguzhuang Oilfield [J ] . Petroleum Geology and Recovery Efficiency , 2007 , 14 ( 2 ): 67 - 70 .

武男 , 朱维耀 , 石成方 , 等 . 有效流动单元划分方法与流场动态变化特征 [J ] . 中南大学学报(自然科学版) , 2016 , 47 ( 4 ): 1374 - 1382 .

WU N , ZHU W Y , SHI C F , et al . Dividing principle and method of effective flow units and the characteristics of flow field [J ] . Journal of Central South University (Science and Technology) , 2016 , 47 ( 4 ): 1374 - 1382 .

杜玉洪 , 张继春 , 侯翠芬 . 储层宏观物性参数随注水开发动态演化模式研究 [J ] . 特种油气藏 , 2004 , 11 ( 5 ): 52 - 55 .

DU Y H , ZHANG J C , HOU C F . Evolutionary pattern of macroscopic petrophysical parameters with waterflooding performance [J ] . Special Oil & Gas Reservoirs , 2004 , 11 ( 5 ): 52 - 55 .

冯娟萍 , 郭艳琴 , 余芳 . 鄂尔多斯盆地富县探区延长组物源与沉积体系分析 [J ] . 西安科技大学学报 , 2013 , 33 ( 2 ): 178 - 184 .

FENG J P , GUO Y Q , YU F . Provenance and sedimentary system analysis of Yanchang Formation in Fuxian exploration area, Ordos Basin [J ] . Journal of Xi'an University of Science and Technology , 2013 , 33 ( 2 ): 178 - 184 .

王桂成 , 马维民 , 赵虹 , 等 . 鄂尔多斯盆地富县探区三叠系延长组沉积特征 [J ] . 西北大学学报(自然科学版) , 2003 , 33 ( 5 ): 608 - 612 .

WANG G C , MA W M , ZHAO H , et al . Depositional feature of tertiary Yanchang Formation of Fuxian exploratory area in Ordos Basin [J ] . Journal of Northwest University (Natural Science Edition) , 2003 , 33 ( 5 ): 608 - 612 .

谢正温 , 谢渊 , 王剑 , 等 . 鄂尔多斯盆地富县地区延长组主要油层组储层特征 [J ] . 石油实验地质 , 2005 , 27 ( 6 ): 575 - 582 .

XIE Z W , XIE Y , WANG J , et al . The reservoir characteristics of Yanchang Group in Fuxian Region, Erdos Basin [J ] . Petroleum Geology & Experiment , 2005 , 27 ( 6 ): 575 - 582 .

郭德运 , 郭艳琴 , 李文厚 , 等 . 富县探区上三叠统延长组长8油藏富集因素 [J ] . 西北大学学报(自然科学版) , 2010 , 40 ( 1 ): 93 - 97 .

GUO D Y , GUO Y Q , LI W H , et al . Oil accumulation factors of Chang 8 oil reservoir of Yanchang formation of Upper Triassic in Fuxian exploration area [J ] . Journal of Northwest University (Natural Science Edition) , 2010 , 40 ( 1 ): 93 - 97 .

解伟 , 孙卫 , 王国红 . 油气储层流动单元划分参数选取 [J ] . 西北大学学报(自然科学版) , 2008 , 38 ( 2 ): 282 - 284, 289 .

XIE W , SUN W , WANG G H . Parameter selection of oil and gas reservoir in flow unit division [J ] . Journal of Northwest University (Natural Science Edition) , 2008 , 38 ( 2 ): 282 - 284, 289 .

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