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

doi:10.3969/j.issn.1673-8926.2017.04.018

岩性油气藏 ›› 2017, Vol. 29 ›› Issue (4): 146–153.doi: 10.3969/j.issn.1673-8926.2017.04.018

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

张建兴¹, 林承焰¹, 张宪国¹, 孙志峰², 陈家昀²

1. 中国石油大学 (华东)地球科学与技术学院, 山东青岛 266580;
2. 山东省油藏地质重点实验室, 山东青岛 266580

收稿日期:2017-01-13 修回日期:2017-03-05 出版日期:2017-07-21 发布日期:2017-07-21
第一作者:张建兴(1990-),男,中国石油大学(华东)在读硕士研究生,研究方向为油气藏开发地质、油藏数值模拟与剩余油。地址:(266580)山东省青岛市黄岛区长江西路66号中国石油大学(华东)地球科学与技术学院。Email:812109942@qq.com。
基金资助:
国家重大科技专项“复杂油气藏精细描述新方法与开发模式”（编号：2016ZX05009-001）和国家自然科学基金项目“基于沉积过程分析的砂质辫状河储层中细粒沉积成因机制与分布模式研究”（编号：41672129）联合资助。

Remaining oil distribution of point bar reservoir based on reservoir architecture and reservoir numerical simulation

ZHANG Jianxing¹, LIN Chengyan¹, ZHANG Xianguo¹, SUN Zhifeng², CHEN Jiayun²

1. School of Geosciences, China University of Petroleum, Qingdao 266580, Shandong, China;
2. Shandong Provincial Key Laboratory of Reservoir Geology, Qingdao 266580, Shandong, China

Received:2017-01-13 Revised:2017-03-05 Online:2017-07-21 Published:2017-07-21

摘要/Abstract

摘要： 为了提高特高含水期点坝储层剩余油采收率，以胜利油区孤东油田七区西为例，在曲流河点坝储层精细构型解剖的基础上，利用基于构型单元的侧积体建模方法建立起点坝精细构型地质模型，利用油藏数值模拟方法预测曲流河点坝储层剩余油分布特征，揭示其主控因素，建立分布模式。研究表明，曲流河点坝储层中剩余油的分布受到储层构型、射孔层位和注采方向等多个地质及开发因素的综合影响，在这些因素综合作用下的剩余油分布模式可归纳为5种，即上注上采型、下注上采型、合注合采型、上注下采型、下注下采型，这5种类型剩余油富集程度依次增高。综合对比5种类型的剩余油分布模式认为，逆侧积夹层倾向注水条件下油水井间的储层中上部位置是点坝储层剩余油的有利富集区，水平井可以改善曲流河点坝储层水驱开发效果，提高剩余油采收率。

关键词: 三级层序, 岩性油气藏, Jabung 区块, 南苏门答腊盆地

Abstract: In order to enhance the remaining oil recovery of point bar reservoir in the extra-high water cut stage, taking the west 7th block of Gudong Oilfield in Shengli Oilfield as a case,based on fine reservoir architecture analysis of meandering river point bar reservoir,lateral accretion body modeling method based on reservoir architecture unit was used to establish a reservoir architecture model,and then numerical simulation technology was used to predict the remaining oil distribution and analyze the main controlling factors. The results show that reservoir architecture,performation intervals and injection direction have great implications for the remaining oil distribution in meandering point bar reservoir. Five patterns of remaining oil were summed up,including upper injection-upper production,lower injection-upper production,commingling production-injection,upper injection-lower production and lower injection-lower production. The enrichment degree of these five patterns of remaining oil is increasing in turn. According to comprehensive comparison of the five patterns of remaining oil, the favorable enrichment area of remaining oil is located in the upper reservoir where the injection direction is opposite to the dip direction of lateral accretion beddings. It is considered that investing horizontal well is an effective adjustment measure to improve the development effect of meandering river point bar reservoir, which can enhance the recovery of remaining oil.

Key words: third-order sequence, lithologic reservoirs, Jabung block, South Sumatra Basin

中图分类号:

TE34

张建兴, 林承焰, 张宪国, 孙志峰, 陈家昀. 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 Jianxing, LIN Chengyan, ZHANG Xianguo, SUN Zhifeng, CHEN Jiayun. Remaining oil distribution of point bar reservoir based on reservoir architecture and reservoir numerical simulation[J]. Lithologic Reservoirs, 2017, 29(4): 146–153.

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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

Remaining oil distribution of point bar reservoir based on reservoir architecture and reservoir numerical simulation

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