垦东北地区古近系油气输导体系特征

doi:10.3969/j.issn.1006-6535.2023.06.005

特种油气藏 ›› 2023, Vol. 30 ›› Issue (6): 31-39.DOI: 10.3969/j.issn.1006-6535.2023.06.005

垦东北地区古近系油气输导体系特征

张伟¹, 蒋有录¹, 侯帅¹, 景安语², 孙超²

1.中国石油大学(华东),山东青岛 266580;
2.中国石化胜利油田分公司,山东东营 257001

收稿日期:2023-01-28 修回日期:2023-09-16 出版日期:2023-12-25 发布日期:2024-01-19
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:张伟(1998—),男,2021年毕业于中国石油大学(华东)资源勘查工程专业,现为该校地质资源与地质工程专业在读硕士研究生,主要从事油气藏形成与分布规律方面的研究工作。
基金资助:
中国石化科技攻关项目“胜利滩海古近系沉积、成藏规律与目标评价”(p21034-2)

Characteristics of the Paleocene Oil and Gas Transmission System in North Kengdong Area

Zhang Wei¹, Jiang Youlu¹, Hou Shuai¹, Jing Anyu², Sun Chao²

1. China University of Petroleum (East China), Qingdao, Shandong 266580, China;
2. Sinopec Shengli Oilfield Company, Dongying, Shandong 257001, China

Received:2023-01-28 Revised:2023-09-16 Online:2023-12-25 Published:2024-01-19

摘要/Abstract

摘要： 针对垦东北地区古近系油气输导体系特征及其对油气分布的控制作用不明确等问题,基于地质、地震、测井等资料,分析输导要素的发育特征,并对输导能力及组合类型进行了评价和划分,明确输导体系与油气分布的关系。研究表明:成藏期活动性较强的油源断层与侧向连通砂体或不整合输导层是油气输导的重要通道;断层-砂体/不整合侧向分流系数大于下限值时,油气可沿断层向砂体/不整合输导层侧向充注。根据输导要素组合特征和输导能力划分出5类输导体系,其中Ⅰ、Ⅱ、Ⅲ型输导能力强,Ⅳ、Ⅴ型输导能力弱,造成现今垦东北地区中部多层系富集,东部、西部深层聚集的油气分布特征。该研究成果对垦东北地区下一步油气勘探工作具有一定参考意义。

关键词: 输导体系, 输导能力, 油气分布, 古近系, 垦东北地区

Abstract: To address the problems such as the characteristics of the Paleocene oil and gas transmission system and its control role on oil and gas distribution in north Kendong Area, based on geological, seismic and well-logging data, we analyzed the development characteristics of the transmission elements and evaluated and classified their transmission capacity and combination types, so as to clarify the relationship between the transmission system and the oil and gas distribution. The study shows that oil source faults with strong activity during the reservoir formation period and laterally connected sand body or unconformable carrier bed are important channels for oil and gas transmission; when the fault-sand body/unconformable lateral flow coefficient is greater than the lower-limit value, the oil/gas may be laterally charged along the faults to the sand body/unconformable carrier bed. Five transmission systems have been classified according to the characteristics of the combination of transmission elements and transmission capacity, of which type Ⅰ, type Ⅱ, type Ⅲ have strong transmission capacity, and type Ⅳ, type Ⅴ have weak transmission capacity, resulting in the multilayered system was enriched in the middle of the north Kendong Area, and the oil and gas were deeply gathered in the east and west. The study results have certain reference significance for the next oil and gas exploration work in north Kendong Area.

Key words: transmission system, transmission capacity, oil and gas distribution, paleocene system, north Kendong Area

中图分类号:

TE122

张伟, 蒋有录, 侯帅, 景安语, 孙超. 垦东北地区古近系油气输导体系特征[J]. 特种油气藏, 2023, 30(6): 31-39.

Zhang Wei, Jiang Youlu, Hou Shuai, Jing Anyu, Sun Chao. Characteristics of the Paleocene Oil and Gas Transmission System in North Kengdong Area[J]. Special Oil & Gas Reservoirs, 2023, 30(6): 31-39.

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垦东北地区古近系油气输导体系特征

Characteristics of the Paleocene Oil and Gas Transmission System in North Kengdong Area

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