摘要
位于塔里木盆地阿瓦提凹陷—满加尔凹陷过渡带的富东1井在奥陶系鹰山组2段台缘高能滩获得重大突破,对碳酸盐岩内幕区成藏具有重要意义。通过对富东1井成藏条件、储层特征、油气来源的深入研究,明确了富满油田东部深层寒武系玉尔吐斯组供烃、台缘高能滩成储、上覆致密碳酸盐岩成盖的生储盖组合,并建立了“寒武系供烃、次级网状断裂沟通油源、纵向输导、断控台缘高能滩复合油气成藏”新模式。富东1井的成功钻探,证实了台缘高能滩叠合次级网状断裂改造具备成储成藏能力,突破了早期认为的8000m以下超深层碳酸盐岩高能滩的勘探禁区,拓展了断控碳酸盐岩油气藏模式。同时,也是以台缘高能滩体+次级网状断裂油气藏为勘探思路的成功实践,打开了轮南—富满台缘带勘探新局面,有望引领塔里木盆地超深层复杂海相碳酸盐岩的勘探。
A major breakthrough has been obtained in the high-energy platform marginal shoal in the second member of the Ordovician Yingshan Formation in Well Fudong 1 drilled in the transitional zone of Awati Sag-Manjiar Sag in Tarim Basin,which is of great significance to the understanding of hydrocarbon accumulation in the inner carbonate rocks.Based on the in-depth studies on hydrocarbon accumulation conditions,reservoir properties and hydrocarbon sources in Well Fudong 1,the hydrocarbon accumulation assemblage in the eastern Fuman Oilfield is identified,which is composed of source rock of the deep Cambrian Yuertus Formation,reservoir of the high-energy platform marginal shoal body,and cap rock of the overlying tight carbonate rocks,as well as a new complex hydrocarbon accumulation pattern is established,namely“hydrocarbon supply by the Cambrian,reservoir and oil source connection by secondary network faults,vertical hydrocarbon transport,and reservoir of fault-controlled high-energy shoal body”.The success of Well Fudong 1 confirms that the highenergy platform marginal shoal reconstructed by the secondary network faults has the capacities of reservoir development and hydrocarbon accumulation,breaking through the exploration forbidden zone in ultra-deep high-energy shoal carbonate rocks with a depth of greater than 8000 m,and expanding the understanding on hydrocarbon accumulation pattern in fault-controlled carbonate reservoir.In addition,it is a successful practice of exploration idea of“high-energy platform marginal shoal body+secondary network fault oil and gas reservoir”,which supports to open a new situation of exploration in Lunnan-Fuman platform marginal zone and lead the exploration deployment of ultra-deep complex marine carbonate rocks in Tarim Basin.
作者
王清华
杨海军
张银涛
李勇
杨宪彰
朱永峰
韩剑发
谢舟
Wang Qinghua;Yang Haijun;Zhang Yintao;Li Yong;Yang Xianzhang;Zhu Yongfeng;Han Jianfa;Xie Zhou(PetroChina Tarim Oilfield Company)
出处
《中国石油勘探》
CAS
CSCD
北大核心
2023年第1期47-58,共12页
China Petroleum Exploration
基金
国家科技重大专项“深层—超深层油气成藏过程与勘探新领域”(2017ZX05008-004)
中国石油天然气股份有限公司科技项目“多尺度缝洞型油藏储层静态刻画及动态描述技术研究”(2021DJ1501)
塔里木油田科技项目“富满油田勘探开发一体化关键技术攻关研究”(T202112)。
关键词
塔里木盆地
富满油田
台缘高能滩
次级网状断裂
富东1井
Tarim Basin
Fuman Oilfield
platform marginal high-energy shoal
secondary network fault
Well Fudong 1
