天然气工业2026，Vol.46Issue(8)：32-45,14.DOI:10.3787/j.issn.1000-0976.2026.08.003
塔里木盆地麦盖提斜坡差异构造变形与油气聚集规律
Differential tectonic deformation and hydrocarbon accumulation patterns in the Maigaiti Slope of the Tarim Basin
摘要
Abstract
The Maigaiti Slope in the Tarim Basin is an important petroleum exploration area.However,the complex differential tectonic deformation within the Maigaiti Slope and its controlling effects on hydrocarbon accumulation remain inadequately understood,which restricts major breakthroughs in oil and gas exploration and development.Based on the detailed structure interpretation of 2D and 3D seismic data,this paper identifies the third-order structural units within the Maigaiti Slope,and revises the division of its structural zones.The differences in the fracture characteristics among these third-order structural units are systematically reviewed.Furthermore,the differential tectonic deformation,evolutionary processes and formation mechanisms in the western and eastern Maigaiti Slope are analyzed,and the structural controls on hydrocarbon accumulation are discussed.The following results are obtained.First,the Maigaiti Slope can be divided into four third-order structural units,namely the North Bashituo Gentle Fold Belt,the Ba-Yue Structural Nose,the Yuxi Structural Nose,and the Yudong-Hotan Fault-Fold Belt.It exhibits a pronounced east-west structural zonation.Second,the western Maigaiti Slope is characterized by a large structural nose developed on the flank of the Late Hercynian Maixi Paleo-uplift,where the North Bashituo Gentle Fold Belt is dominated by nearly E-W-trending thrust-strike&slip faults on the north and the Ba-Yue Structural Nose by steep NW-and NE-trending strike-slip faults on the south.Third,the central Yuxi Structural Nose was formed by Himalayan inversion of the Hotan Paleo-uplift and is dominated by steep strike-slip faults developed predominantly within the sub-salt succession.Fourth,the eastern Yudong-Hotan Fault-Fold Belt is dominated by multiple thrust-fold belts developed within the Caledonian forebulge.In conclusion,differential tectonic deformation determines the hydrocarbon accumulation conditions and exploration potential of different structural units in the Maigaiti Slope,and the Ba-Yue and Yuxi structural noses represent the most prospective exploration targets.关键词
油气聚集/差异构造变形/构造解析/麦盖提斜坡/塔西南/塔里木盆地/巴岳鼻凸带/玉西鼻凸带Key words
Hydrocarbon accumulation/Differential tectonic deformation/Structural analysis/Maigaiti Slope/Southwestern Tarim/Tarim Basin/Ba-Yue structural nose/Yuxi structural nose分类
能源科技引用本文复制引用
潘磊,张煜颖,何志勇,贺鸿冰,邱华标,王嘉宁..塔里木盆地麦盖提斜坡差异构造变形与油气聚集规律[J].天然气工业,2026,46(8):32-45,14.基金项目
中国石油化工股份有限公司科技部项目"塔西南地区油气富集主控因素与目标评价"(编号:P25147). （编号:P25147）
