摘要
在有一定的钻井资料但地震资料分辨率不高的情况下,尝试借助沉积模拟方法对澳大利亚Bonaparte盆地某研究区进行了平面沉积相编图和储层快速评价工作。根据钻井岩心、岩性、古生物年龄、古环境等资料,在研究区Elang组—Frigate组识别出了3个层序界面,确定相对海平面呈脉动上升变化;通过类比分析,认为研究区沉积为水进型三角洲河口湾体系,主物源在盆地东南方向;输入这些参数进行沉积模拟,得到了研究区岩性及沉积结构的时空展布特征,并以此指导平面沉积相图的编制。研究区具有湾内潮控、湾外浪控,高位潮控、低位浪控,近源扇三角洲与相对远源三角洲共存的复合型沉积特点。将沉积模拟方法用于储层研究,是在特定条件下进行储层快速评价的有效方法。
There are some drilling data and low-resolution seismic data in an area of Bonaparte basin,Australia,where it is attempted to map sedimentary facies and quickly assess reservoir by means of the sedimentary simulation method.Based on the data such as drilling core,lithology,palaeontology,and palaeoenvironment,three sequence boundaries in Elang to Frigate Formation were identifed,and a pulsed rise of relative sea level was determined in the area.An analogy has indicated that there is a transgrassive deposition system of deltaic estuary in the area,with its main provenance in the southeastern basin.These parameters were inputted to make a sedimentation simulation,resulting in the time-space distribution pattern of lithology and sedimentary texture in the area,which can direct us to mapping sedimentary facies.As a composite deposition system,the area is characterized by tide dominance within the estuary,wave dominance without the estuary,highstand tide dominance,lowstand wave dominance and coexistence of proximal fan delta and relative distal fan delta.Applying the sedimentary simulation method to reservoir rocks may be an efficient tool to quickly assess reservoirs under given conditions.
出处
《中国海上油气》
CAS
北大核心
2010年第2期83-90,共8页
China Offshore Oil and Gas
作者简介
吕明，男，高级工程师，1986年毕业于美国科罗拉多矿业大学地质与地质工程系，获理科（地质）硕士学位，现任中海油研究总院勘探研究院沉积室主任，主要从事层序、沉积、储层研究。地址；北京市东城区东直门外小街6号海油大厦409室（邮编：100027）。
