辽河东部凹陷中南段断盖配置与油气纵向分布关系

doi:10.3969/j.issn.1006-6535.2025.01.009

特种油气藏 ›› 2025, Vol. 32 ›› Issue (1): 79-87.DOI: 10.3969/j.issn.1006-6535.2025.01.009

辽河东部凹陷中南段断盖配置与油气纵向分布关系

李红艳¹, 韩宏伟², 蒋有录³, 沈澈³, 郭强²

1.中国石化胜利油田分公司石油开发中心有限公司,山东东营 257000;
2.中国石油辽河油田分公司,辽宁盘锦 124010;
3.中国石油大学(华东),山东青岛 266580

收稿日期:2024-01-22 修回日期:2024-11-24 出版日期:2025-02-25 发布日期:2025-05-13
通讯作者: 蒋有录(1959—),男,教授,博士生导师,1982年毕业于华东石油学院石油地质专业,1999年毕业于石油大学(北京)矿产普查与勘探专业,获博士学位,现主要从事油气藏形成与分布规律方面的教学和科研工作。
作者简介:李红艳(1996—),女,助理工程师,2019年毕业于山东科技大学资源勘查工程专业,2024年毕业于中国石油大学(华东)地质资源与地质工程专业,获硕士学位,现主要从事油气勘探和开发方面的研究工作。
基金资助:
国家自然科学基金面上项目“富油断陷复式油气聚集区断裂与油气纵向富集关系”(41972140)

Fault-caprock configuration and relationship with longitudinal distribution of hydrocarbons in the south-central section of the Eastern Sag in the Liaohe Basin

LI Hongyan¹, HAN Hongwei², JIANG Youlu³, SHEN Che³, GUO Qiang²

1. Sinopec Shengli Oilfield Development Center co.,Ltd.,Dongying,Shandong 257000, China;
2. PetroChina Liaohe Oilfield Company, Panjin, Liaoning 124010, China;
3. China University of Petroleum (East China), Qingdao, Shandong 266580, China

Received:2024-01-22 Revised:2024-11-24 Online:2025-02-25 Published:2025-05-13

摘要/Abstract

摘要： 针对辽河东部凹陷中南段断盖配置封闭能力对油气纵向分布影响不明确的问题,利用井震及地质资料,研究油气纵向分布特征,通过熵权法结合TOPSIS的方式评价断盖配置封闭能力,以减少确定权重时的主观性。研究表明:研究区油气富集类型可划分为深层富集型、浅层富集型和多层富集型3类;断盖配置可划分为封盖能力较好的Ⅰ型和封盖能力较差的Ⅱ型,沙三段Ⅰ型断盖配置分布于中段,控制油气深层富集,沙三段至东营组之间Ⅰ型和Ⅱ型断盖配置的组合共同控制油气多层富集和浅层富集。该研究成果对下一步油气勘探具有一定参考意义。

关键词: 油气纵向分布, 封闭能力, 断盖配置, 辽河东部凹陷

Abstract: In response to the unclear impact of fault-caprock configuration sealing capacity on the longitudinal distribution of hydrocarbons in the central-southern segment of the Eastern Sag of Liaohe Basin, this study investigated the characteristics of the longitudinal distribution of hydrocarbons by utilizing the well-to-seismic and geological data, and evaluated the sealing capacity of fault-caprock configuration by employing the entropy weight method combined with TOPSIS (Technique for Order Preference by Similarity to Ideal Solution) to reduce subjectivity in weight determination. The study shows that: the types of hydrocarbon enrichment in the study area can be divided into three categories: deep enrichment type, shallow enrichment type, and multi-layer enrichment type. Fault-caprock configurations can be divided into type I with good sealing capacity and type II with poor sealing capacity.Type I fault-caprock configuration in Member 3, Shahejie Formation is distributed in the central segment for controlling the deep enrichment of hydrocarbons. The combination of type I and type II fault-caprock configurations between the Member 3, Shahejie Formation and the Dongying Formation controls the multi-layer enrichment and shallow enrichment of hydrocarbons. The results of this study provide reference significance for the next steps in oil and gas exploration.

Key words: longitudinal distribution of hydrocarbons, sealing capacity, fault-caprock configuration, Eastern Sag of Liaohe Basin

中图分类号:

TE122

李红艳, 韩宏伟, 蒋有录, 沈澈, 郭强. 辽河东部凹陷中南段断盖配置与油气纵向分布关系[J]. 特种油气藏, 2025, 32(1): 79-87.

LI Hongyan, HAN Hongwei, JIANG Youlu, SHEN Che, GUO Qiang. Fault-caprock configuration and relationship with longitudinal distribution of hydrocarbons in the south-central section of the Eastern Sag in the Liaohe Basin[J]. Special Oil & Gas Reservoirs, 2025, 32(1): 79-87.

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辽河东部凹陷中南段断盖配置与油气纵向分布关系

Fault-caprock configuration and relationship with longitudinal distribution of hydrocarbons in the south-central section of the Eastern Sag in the Liaohe Basin

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