海洋地质前沿2025，Vol.41Issue(8)：93-106,14.DOI:10.16028/j.1009-2722.2024.287
巴布亚盆地成烃演化及烃源岩控藏作用
Diagenetic evolution and source rock control of hydrocarbon in the Papuan Basin
摘要
Abstract
The differences in the distribution range,organic matter types,and thermal evolution of the Mesozoic and Cenozoic source rocks in the Papuan Basin result in differences in their oil and gas distribution.The results show that:① Mesozoic source rocks were mainly developed in the northwest of the Papuan Basin.The Jurassic source rocks entered the high maturity stage in the eastern and western parts of the Papuan Fold Belt and the peak oil generation stage in the middle section of the Papuan fold belt and the Frye Platform,while the lower Creta-ceous source rocks on the northern edge of the Papuan Fold Belt and Frye Platform entered the peak oil genera-tion stage;② The southeastern part of the basin was mainly developed with the Cenozoic source rocks,and the main hydrocarbon generation stoves are distributed mainly in the coastal shallow sea area of the Aure Depression.The Middle Miocene source rocks have the characteristics of late maturity and high maturity,while the Upper Miocene source rocks as a whole have not reached the mature stage;③ The Papuan Fold Belt is controlled quite clearly by the maturation and evolution of source rocks.The middle and western sections were mainly supplied by Jurassic source rocks,while the eastern section was supplied mainly by the Cretaceous source rocks.The eastern and western sections were continuously supplied by overlying high maturity source rocks,and both mature gas reservoirs and condensate gas reservoirs were developed.The Jurassic source rocks in the middle section were at the peak of oil generation,mainly consisting of type Ⅱ kerogen and developing mainly normal oil reservoirs;④ The distribution of oil and gas in the Frye Platform and Papuan Bay was jointly controlled by the organic mat-ter type and maturation evolution of the source rocks.The oil and gas source of the Frye Platform is a mixture of the Mesozoic source rocks,and the oil and gas type in its northern edge is similar to that in the central and west-ern sections of the Papuan Fold Belt.The southern slope zone is also controlled by the organic matter type and maturation evolution of the source rocks.Oil and gas are mainly supplied by the Cretaceous source rocks;and in the Papuan Bay region,due to different hydrocarbon supply layers,there are differences in the types and matura-tion evolution of organic matter in source rocks,in which mature gas reservoirs and biogenic gas reservoirs in the Cenozoic.The main source of mature oil and gas is Middle Miocene source rocks,while the main source of bio-genic gas are the Upper Miocene source rocks.关键词
成烃演化/生烃潜力/原油类型/控藏作用/巴布亚盆地Key words
hydrocarbon generation and diagenetic evolution/hydrocarbon generation potential/types of crude oil/reservoir control of source rocks/Papuan Basin分类
天文与地球科学引用本文复制引用
谢睿,林小云,刘建,卢艺静..巴布亚盆地成烃演化及烃源岩控藏作用[J].海洋地质前沿,2025,41(8):93-106,14.基金项目
中海油北京研究中心合作项目"巴新前陆区油气成藏组合与分布研究"(CCL2017RCPS0125GSN) （CCL2017RCPS0125GSN）
