辽河东部凹陷斜坡带扇三角洲地震沉积学表征

doi:10.11885/j.issn.1674-5086.2021.11.21.01

西南石油大学学报(自然科学版) ›› 2023, Vol. 45 ›› Issue (3): 14-28.DOI: 10.11885/j.issn.1674-5086.2021.11.21.01

辽河东部凹陷斜坡带扇三角洲地震沉积学表征

黄德榕¹, 张宪国², 王友净¹, 蔡国钢³, 解宝国³

1. 中国石油勘探开发研究院, 北京海淀 100083;
2. 山东省深层油气重点实验室, 山东青岛 266580;
3. 中国石油辽河油田勘探开发研究院, 辽宁盘锦 124010

收稿日期:2021-11-21 出版日期:2023-06-10 发布日期:2023-07-07
通讯作者: 张宪国,E-mail:zhangxianguo@upc.edu.cn
作者简介:黄德榕，1997年生，女，汉族，陕西西安人，博士研究生，主要从事地震沉积学方面的研究。E-mail：deronghuang1997@163.com；
张宪国，1982年生，男，汉族，山东泰安人，教授，博士研究生导师，主要从事油气储层地质学的研究与教学工作。E-mail：zhangxianguo@upc.edu.cn；
王友净，1973年生，女，汉族，山东博兴人，高级工程师，主要从事油气田开发地质研究。E-mail：wangyoujing@petrochina.com.cn；
蔡国钢，1964年生，男，汉族，河北承德人，教授级高级工程师，博士，主要从事油气勘探方面的研究。E-mail：caigg@petrochina.com.cn；
解宝国，1979年生，男，汉族，吉林四平人，高级工程师，主要从事油气勘探地质方面的研究。E-mail：xiebg@petrochina.com.cn
基金资助:
国家自然科学基金(42172144)

Seismic Sedimentology Characterization of Fan-delta in Slope Belt of Eastern Liaohe Depression

HUANG Derong¹, ZHANG Xianguo², WANG Youjing¹, CAI Guogang³, XIE Baoguo³

1. PetroChina Research Institute of Petroleum Exploration & Development, Haidian, Beijing 100083, China;
2. Shandong Key Laboratory of Deep Oil and Gas, Qingdao, Shandong 266580, China;
3. Research Institute of Exploration and Development, Liaohe Oilfield Company, CNPC, Panjin, Liaoning 124010, China

Received:2021-11-21 Online:2023-06-10 Published:2023-07-07

摘要/Abstract

摘要： 扇三角洲是断陷盆地斜坡带重要的油气储层类型，岩性复杂，沉积相带横向变化快，井间沉积相表征难。选取发育典型扇三角洲沉积的辽河东部凹陷斜坡带铁匠炉地区，开展地震反射等时性分析和多属性融合的沉积相地震表征。研究发现： 1)斜坡带扇三角洲沉积区存在局部地震反射“穿时”现象，分频倾角差分析能识别显著的穿时地震反射。2)均方根振幅、能量半时和振幅不对称性属性包含了砂岩发育程度和岩性组合信息，对三者进行RGB融合，可为少井区沉积相地震表征提供简便且有效的方法。3)研究区发育北物源的两个大型扇三角洲和东南物源的一个小型扇三角洲，目前勘探开发主要集中在北物源扇三角洲储层。研究为斜坡带扇三角洲沉积相地震表征提供了有效方法，为研究区下一步勘探提供了方向和目标。

关键词: 扇三角洲, 斜坡带, 辽河东部凹陷, 地震沉积学, 多属性融合

Abstract: Fan delta is an important type of oil and gas reservoir in slope zone of faulted basin. Lithology and sedimentary facies vary laterally. It is difficult to characterize sedimentary facies distribution inter-wells. A typical fan-delta deposition at Tiejianglu Area in the gentle slope zone of the eastern Liaohe Sag is studied. i. Two work are carried on including isochronicity analysis of seismic reflection, and seismic characterization of sedimentary facies with multi-attributes fusion. The study reveals: 1) in fan delta deposition area, there are diachronous seismic events locally and frequency division dip difference analysis can identify significant diachronous seismic reflection; 2) the root mean square amplitude, energy half-time and skew in amplitude attributes contain the information of sandstone development degree and lithologic combination. RGB fusion of the three attributes provides a simple and effective method for seismic characterization of sedimentary facies in sparse-borehole areas; 3) in study area, there developed 3 fan deltas including 2 large fan deltas of north provenance and a small fan delta of southeast provenance. At present, the exploration and development are concentrated on the fan deltas of north provenance. This study provides an effective method for seismic characterization of fan delta sedimentary facies in gentle slope zone, and provides direction and target for further exploration in the study area.

Key words: fan delta, slope belt, eastern Liaohe Sag, seismic sedimentology, multi-seismic attributes fusion

中图分类号:

TE122

黄德榕, 张宪国, 王友净, 蔡国钢, 解宝国. 辽河东部凹陷斜坡带扇三角洲地震沉积学表征[J]. 西南石油大学学报(自然科学版), 2023, 45(3): 14-28.

HUANG Derong, ZHANG Xianguo, WANG Youjing, CAI Guogang, XIE Baoguo. Seismic Sedimentology Characterization of Fan-delta in Slope Belt of Eastern Liaohe Depression[J]. Journal of Southwest Petroleum University(Science & Technology Edition), 2023, 45(3): 14-28.

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辽河东部凹陷斜坡带扇三角洲地震沉积学表征

Seismic Sedimentology Characterization of Fan-delta in Slope Belt of Eastern Liaohe Depression

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