英买X1白云岩油藏非均质性定量表征及建模研究

doi:10.11885/j.issn.1674-5086.2017.11.08.01

西南石油大学学报(自然科学版) ›› 2019, Vol. 41 ›› Issue (1): 18-32.DOI: 10.11885/j.issn.1674-5086.2017.11.08.01

英买X1白云岩油藏非均质性定量表征及建模研究

曹鹏^1,2, 戴传瑞^1,2, 张超³, 常少英^1,2, 刘江丽^1,2

1. 中国石油杭州地质研究院, 浙江杭州 310023;
2. 中国石油天然气集团公司碳酸盐岩储层重点实验室, 浙江杭州 310023;
3. 中国石油塔里木油田公司勘探开发研究院, 新疆库尔勒 841000

收稿日期:2017-11-08 出版日期:2019-02-10 发布日期:2019-02-10
通讯作者: 曹鹏,E-mail:caop_hz@petrochina.com.cn
作者简介:曹鹏,1985年生,男,汉族,山东宁津人,工程师,硕士,主要从事油藏工程及数值模拟方面的研究。E-mail:caop_hz@petrochina.com.cn;戴传瑞,1983年生,男,汉族,安徽太湖人,高级工程师,博士,主要从事碳酸盐岩石油综合地质方面的研究。E-mail:daicr_hz@petrochina.com.cn;张超,1986年生,男,汉族,河南长葛人,工程师,主要从事油气田开发方面的研究。E-mail:zhangctlm@petrochina.com.cn;常少英,1983年生,男,汉族,河南唐河人,硕士,主要从事油藏地球物理方面的研究。E-mail:changsy_hz@petrochina.com.cn;刘江丽,1983年生,女,汉族,陕西铜川人,工程师,硕士,主要从事储层描述及油气藏三维地质建模方面的研究。E-mail:liujl_hz@petrochina.com.cn
基金资助:
国家科技重大专项（2016ZX05004-002）；中国石油天然气股份有限公司重大科技专项（2014E-32-02）

Quantitative Characterization of Heterogeneity and Geological Modeling of the Yingmai X1 Dolomite Oil Reservoir

CAO Peng^1,2, DAI Chuanrui^1,2, ZHANG Chao³, CHANG Shaoying^1,2, LIU Jiangli^1,2

1. PetroChina Hangzhou Research Institute of Geology, Hangzhou, Zhejiang 310023, China;
2. Key Laboratory of Carbonate Reservoir, CNPC, Hangzhou, Zhejiang 310023, China;
3. Tarim Oilfield Exploration and Development Company Research Institute, CNPC, Korla, Xinjiang 841000, China

Received:2017-11-08 Online:2019-02-10 Published:2019-02-10

摘要/Abstract

摘要： 英买X1白云岩油藏目前已经进入特高含水开采阶段，因此，对储层进行非均质性定量表征并寻找剩余油分布规律显得尤为重要。从野外地质露头研究着手，结合单井实钻以及井间特征，明确了英买X1白云岩油藏非均质性主要受沉积旋回和岩性特征控制，优质储层主要发育于细-中晶白云岩，泥晶和泥-粉晶白云岩形成的低渗透条带影响了流体渗流特征，储层发育的6套低渗透格架层主要控制了剩余油分布规律。利用地层真厚度计算方法和薄层反演技术，搭建地层格架，并约束油藏地质模型和数值模型，预计白云岩区剩余油储量133.33×10⁴ t，措施增油量可达22.9×10⁴ t，技术思路对同类型油藏的开发具有重要的参考价值。

关键词: 白云岩油藏, 非均质性, 低渗透条带, 地质建模, 剩余油

Abstract: The Yingmai X1 dolomite oil reservoir has entered the ultra-high water-cut exploitation stage; therefore, it is particularly important to quantitatively characterize the heterogeneity of the reservoir and determine the distribution pattern of residual oil. This study examines the field geologic outcrop, and the results are integrated with characteristics of individual boreholes. We find that the heterogeneity of the Yingmai X1 dolomite oil reservoir is primarily controlled by sedimentation cycles and lithological properties. High-quality reservoirs are mostly located in fine to medium-grained dolomite. Low-permeability bands formed by micritic dolomite influence fluid seepage behavior. The six low-permeability stratigraphic frameworks developed in the reservoir predominantly govern the distribution pattern of the residual oil. By calculating the true thicknesses of stratigraphic layers and using thin-layer inversion techniques, stratigraphic frameworks were constructed and applied as constraints in establishing geological and numerical models for oil reservoirs. It is estimated that the residual oil reserve in the dolomite region amounts to 133.33×10⁴ t and production can reach 22.9×10⁴ t if appropriate measures are introduced. The methodology of this study can be a valuable reference for exploiting similar oil reservoirs.

Key words: dolomite oil reservoirs, reservoir heterogeneity, low-permeability bands, geological modeling, residual oil

中图分类号:

TE122

曹鹏, 戴传瑞, 张超, 常少英, 刘江丽. 英买X1白云岩油藏非均质性定量表征及建模研究[J]. 西南石油大学学报(自然科学版), 2019, 41(1): 18-32.

CAO Peng, DAI Chuanrui, ZHANG Chao, CHANG Shaoying, LIU Jiangli. Quantitative Characterization of Heterogeneity and Geological Modeling of the Yingmai X1 Dolomite Oil Reservoir[J]. 西南石油大学学报(自然科学版), 2019, 41(1): 18-32.

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英买X1白云岩油藏非均质性定量表征及建模研究

Quantitative Characterization of Heterogeneity and Geological Modeling of the Yingmai X1 Dolomite Oil Reservoir

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