[1]王 腾,李康康,王 剑.L油藏蒸汽吞吐后期剩余油分布研究[J].复杂油气藏,2021,14(01):61-68.[doi:10.16181/j.cnki.fzyqc.2021.01.012]
 WANG Teng,LI Kangkang,WANG Jian.Study on distribution of remaining oil in L Reservoir after steam stimulation[J].Complex Hydrocarbon Reservoirs,2021,14(01):61-68.[doi:10.16181/j.cnki.fzyqc.2021.01.012]
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L油藏蒸汽吞吐后期剩余油分布研究()
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《复杂油气藏》[ISSN:1674-4667/CN:31-2019/TQ]

卷:
14卷
期数:
2021年01期
页码:
61-68
栏目:
油气开发
出版日期:
2021-03-25

文章信息/Info

Title:
Study on distribution of remaining oil in L Reservoir after steam stimulation
作者:
王 腾李康康王 剑
中国石油大学(北京)石油工程学院,北京 102249
Author(s):
WANG TengLI KangkangWANG Jian
Institute of Petroleum Engineering,China University of Petroleum,Beijing 102249,China
关键词:
稠油油藏蒸汽吞吐数值模拟剩余油灰色关联
Keywords:
heavy oil reservoir cumulative steam stimulationnumerical simulation residual oil grey relational analysis (GRA)
分类号:
TE327
DOI:
10.16181/j.cnki.fzyqc.2021.01.012
文献标志码:
A
摘要:
L油藏经过近30年蒸汽吞吐开发,目前已进入吞吐中后期,开发效果日益变差。为了弄清剩余油分布状况,改善注蒸汽开发效果,开展了数值模拟研究。利用CMG软件进行L油藏地质建模并完成地质储量、产量及含水率的历史拟合,拟合误差小于5%,拟合精度较高,得到了可信的剩余油分布结果。剩余油主控因素分析显示,地层系数、储层非均质性与井间干扰等因素综合影响剩余油分布。为定量描述各类型剩余油储量,通过灰色关联理论逐层逐井区计算了剩余油影响因素的关联度,确定了剩余油类型。计算结果表明,L油藏主要发育薄差储层型剩余油和井间滞留型剩余油,其次为射孔对应性差型剩余油。通过灰色关联方法计算得到的剩余油定量分布为后续剩余油挖潜提供了指导。
Abstract:
After nearly 30 years of steam stimulation development,the L Reservoir has entered the middle and late stage of steam huff and puff,and the development effect is getting worse. In order to improve the development effect of steam injection and clarify the distribution of remaining oil,the numerical simulation research was carried out. Geological modeling of L Reservoir was built by CMG software,and then it was completed the history matching of geological reserves,oil production,and water cut. The fitting error was less than 5%,and the reliable results of remaining oil distribution were obtained. The analyses of the main controlling factors of remaining oil distribution show that factors such as formation coefficient,reservoir heterogeneity,and inter-well interference comprehensively affect the distribution of remaining oil.In order to quantitatively describe the remaining oil reserves of various types,the correlation degree of remaining oil influencing factors was calculated layer by layer and well area by grey relation alanalysis (GRA),and the remaining oil type was determined. The calculation results show that in L Oil-reservoir,there are mainly thin and poor reservoir type remaining oil and inter-well retention type remaining oil,followed by poor perforation correspondence type remaining oil. The quantitative distribution of remaining oil calculated by GRA provides guidance for the subsequent tapping of remaining oil potential.

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备注/Memo

备注/Memo:
收稿日期:2020-06-24;改回日期:2020-07-29。
第一作者简介:王腾(1997—),硕士在读,研究方向为稠油提高采收率理论与技术。E-mail: 2018212132@student.cup.edu.cn。
更新日期/Last Update: 2021-03-25