油气地质与采收率2025，Vol.32Issue(3)：58-67,10.DOI:10.13673/j.pgre.202312030
塔北新和地区下白垩统亚格列木组源-汇体系分析及沉积模式
Source-sink system analysis and sedimentary model of Cretaceous Yageliemu Formation in Xinhe area,northern Tarim Basin
郝建龙 1杨玉芳 1李帅 1张莉 2孟璐莹 2毕小龙 2杨沁超2
作者信息
- 1. 中国石化西北油田分公司,新疆 乌鲁木齐 830011
- 2. 长江大学 地球科学学院,湖北 武汉 430100
- 折叠
摘要
Abstract
Subtle lithologic traps are essential fields for oil and gas exploration in deep clastic rocks of Tarim Basin.The geological distribution pattern of favorable reservoirs in clastic rocks is a key challenge restricting efficient exploration and development.At present,breakthroughs in oil and gas exploration have been made in the deep reservoirs of the Lower Cretaceous Yageliemu Formation in Xinhe area of the northern Tarim Basin.In view of the limitation of wells,the distribution pattern of reservoirs in Yageliemu Formation urgently needs to be further clarified.This study took the plaeo uplift in Xinhe area of the northern Tarim Basin and the northern fault slope zone as examples and used prediction methods such as core analysis,seismic reflection identification,paleogeomorphology restoration,channel characterization,and seismic inversion constraint.Based on the theory of the source-sink system,the distribution characteristics of the source area,sediment transport channel,and fan delta in Yageliemu Formation on the plane and profile were analyzed.The research results indicated that fan delta sediments are developed in Yageliemu Formation in Xinhe area of the northern Tarim Basin.The sediment source of the fan delta in Xinhe area comes from the plaeo uplift in Xinhe area,and the development of multi-tributary incised valleys provides effective transportation channels for the fan delta sediments.The upstream area of Well W1 region in the southwest is characterized by shallow,narrow,straight,and small watershed area valleys.The small-sized fan delta sediments are developed in the incised valleys and feature late development.Well W2 region in the northeast has a wide,deep,multi-tributary,and large watershed area valley system in the upstream,with large-sized fan delta sediments developed,featuring large-scale early development,late regressive development,and early and late fan superposition.关键词
扇三角洲/源-汇体系分析/亚格列木组/新和地区/塔里木盆地Key words
fan delta/source-sink system analysis/Yageliemu Formation/Xinhe area/Tarim Basin分类
石油、天然气工程引用本文复制引用
郝建龙,杨玉芳,李帅,张莉,孟璐莹,毕小龙,杨沁超..塔北新和地区下白垩统亚格列木组源-汇体系分析及沉积模式[J].油气地质与采收率,2025,32(3):58-67,10.
