构型模式约束下深海水道连续性定量表征

doi:10.11885/j.issn.1674-5086.2024.08.28.01

西南石油大学学报(自然科学版) ›› 2025, Vol. 47 ›› Issue (1): 16-26.DOI: 10.11885/j.issn.1674-5086.2024.08.28.01

• 深海油气勘探与开发地质专刊 • 上一篇下一篇

构型模式约束下深海水道连续性定量表征

刘飞¹, 赵晓明^1,2, 冯潇飞¹, 曹树春³, 卜范青³

1. 西南石油大学地球科学与技术学院, 四川成都 610500;
2. 天然气地质四川省重点实验室, 四川成都 610500;
3. 中国海洋石油国际有限公司, 北京海淀 100028

收稿日期:2024-08-28 发布日期:2025-03-12
通讯作者: 赵晓明,E-mail:zhxim98@163.com
作者简介:刘飞，1997年生，男，汉族，四川巴中人，博士研究生，主要从事深水沉积及开发地质方面的研究。E-mail：liuf_e@163.com
赵晓明，1982年生，男，汉族，山东安丘人，教授，博士研究生导师，主要从事油气田开发地质学、深水沉积学、非常规油气地质、二氧化碳封存与利用、人工智能与油气地质等方面的研究工作。E-mail：zhxim98@163.com
冯潇飞，1993年生，男，汉族，河南濮阳人，博士研究生，主要从事深水沉积及开发地质研究。E-mail：fxf0916@163.com
曹树春，1975年生，男，汉族，吉林松原人，高级工程师，硕士，主要从事油气田开发地质与开发地震研究工作。E-mail：caoshch@cnooc.com.cn
卜范青，1981年生，男，汉族，山东潍坊人，高级工程师，硕士，主要从事开发地质方面的研究工作。E-mail：bufq@cnooc.com.cn
基金资助:
国家自然科学基金（42072183)；四川省自然科学基金杰出青年科学基金（2024NSFJQ0065)；中海石油国际能源服务（北京)有限公司科技项目（CBJ-2023-PCPS-0020-RI)；四川省国际科技创新合作项目（24GJHZ0465)

Quantitative Characterization of Deep-sea Channel Continuity Under Architecture Model Constraints

LIU Fei¹, ZHAO Xiaoming^1,2, FENG Xiaofei¹, CAO Shuchun³, BU Fanqing³

1. School of Geoscience and Technology, Southwest Petroleum University, Chengdu, Sichuan 610500, China;
2. Sichuan Key Laboratory of Natural Gas Geology, Chengdu, Sichuan 610500, China;
3. CNOOC International Limited, Haidian, Beijing 100028, China

Received:2024-08-28 Published:2025-03-12

摘要/Abstract

摘要： 深海水道是沉积碎屑物质向深海盆地的重要运移通道及沉积场所，是深海沉积环境下主要储层类型。针对水道内部砂体结构样式及分布规律不明晰、储层连续性预测难度大等问题，开展了深海水道型储层连续性定量表征方法研究。研究以深海水道构型模式及表征结果为约束，将砂体横向与垂向叠置比例乘积倒数作为连续系数，并综合连续性与曲率的耦合关系，实现深海水道储层连续性分布模式的定量评价。研究取得以下认识：研究区单一水道构型分孤立型(Ⅰ型)、接触型(Ⅱ型)及嵌入型(Ⅲ型)3类，横向叠置比例区间分别为>1.00、0.85~1.00、<0.85，垂向叠置比例区间分别为>1.00、0.80~1.00、<0.80；连续系数区间为0.96~1.34、1.37~1.67以及1.67~2.56，Ⅰ型曲率分布在1.00~1.11，Ⅱ型分布在1.02~1.28，Ⅲ型分布在1.10~2.28，连续性随曲率增加而减小。研究量化了不同构型样式的连续系数及曲率分布范围，定量表征了单一水道砂体间的叠置关系，对于深海水道储层高效生产与精细开发有着重要的地质指导意义。

关键词: 尼日尔三角洲, 深海水道, 连续性, 构型模式, 定量表征

Abstract: Deep-sea channels are important transportation channels and deposition sites for sedimentary debris to deep-sea basins, and they are the main types of reservoirs in deep-sea sedimentary environments. Aiming at the problems of unclear structural pattern and distribution pattern of sand body inside the channel, and the difficulty of predicting reservoir continuity, we have carried out a research on quantitative characterization method of reservoir continuity in deep-sea channel type. The study takes the deep-sea waterway configuration pattern and characterization results as the constraints, takes the inverse of the product of the lateral and vertical stacking ratio of the sand body as the continuity coefficient, and synthesizes the coupling relationship between the continuity and curvature to realize the quantitative evaluation of the distribution pattern of the continuity of the reservoirs in the deep-sea channel. The study achieves the following insights, the single channel configurations in the study area are divided into three types: isolated (Type Ⅰ), contact (Type Ⅱ), and embedded (Type Ⅲ), corresponding to lateral stacking ratios of >1.00, 0.85~1.00 and <0.85, and vertical stacking ratios of >1.00, 0.80~1.00 and <0.80, and continuity coefficients of 0.96~1.34, 1.37~1.67 and 1.67~2.56, type Ⅰ curvature distribution intervals of 1.00~1.11, type Ⅱ distribution intervals of 1.02~1.28, and type Ⅲ distribution intervals of 1.10~2.28, with continuity decreasing with increasing curvature. The study quantifies the continuity coefficients and curvature distribution ranges of different configuration styles, quantitatively characterizes the stacking relationship between single channel sands, and is of great significance as a geological guide for the efficient production and fine development of deep-sea channel reservoirs.

Key words: Niger Delta, deep-sea channel, continuity, constitutive patterns, quantitative characterisation

中图分类号:

TE132

刘飞, 赵晓明, 冯潇飞, 曹树春, 卜范青. 构型模式约束下深海水道连续性定量表征[J]. 西南石油大学学报(自然科学版), 2025, 47(1): 16-26.

LIU Fei, ZHAO Xiaoming, FENG Xiaofei, CAO Shuchun, BU Fanqing. Quantitative Characterization of Deep-sea Channel Continuity Under Architecture Model Constraints[J]. Journal of Southwest Petroleum University(Science & Technology Edition), 2025, 47(1): 16-26.

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构型模式约束下深海水道连续性定量表征

Quantitative Characterization of Deep-sea Channel Continuity Under Architecture Model Constraints

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