摘要
夏子街油田侏罗系八道湾组储层流体性质复杂,发育多套含油气砂体。含油气砂体呈现为多个首尾叠置形态的透镜体,砂体高点往往不在构造高点上,且砂体的横向连通性较差。由于油藏形成过程中油气运移动力不足,纯油层较少,多数油层在生产时都是油水同产,流体识别一直是亟待解决的关键问题。本次研究采用基于电阻率径向差异法,分4个区块建立了解释模板。将八道湾组油层解释标准定量化,通过电阻率、声波时差范围及含油饱和度识别出流体性质。实际应用表明,该方法在低饱和度油藏的识别具有较好的效果,为油藏滚动评价提供了新的研究思路。
The reservoir fluid properties of Jurassic Badaowan Formation in Xiazijie oilfield are complex,and many sets of oil and gas bearing sand bodies are developed.For the lens with multiple overlapping heads and tails,the high point of sand body is often not on the structural high point,and the transverse connectivity of sand body is poor.Due to the lack of oil and gas transportation and movement force in the process of reservoir formation,there are few pure reservoirs,and most reservoirs produce oil and water at the same time.Fluid identification has always been a key problem to be solved.In this study,based on the radial difference method of resistivity,the interpretation template is established in four blocks.The reservoir interpretation standard of Badaowan Formation is quantified,the resistivity,acoustic time difference range and oil saturation are determined,and the fluid properties are identified.The practical application shows that this method has a good effect in the identification of low saturation reservoirs,and provides a new research idea for reservoir rolling evaluation.
作者
李培俊
佟莹
彭明超
王丽滢
刘荷冲
Li Peijun;Tong Ying;Peng Mingchao;Wang liying;Liu Hechong(Fengcheng oilfield operation area of PetroChina Xinjiang Oilfield Company,Karamay,Xinjiang,834000,China;Xinjiang Haodeng Technology Co.,Ltd.,Urumqi,Xinjiang,830000,China)
出处
《新疆地质》
CAS
CSCD
2023年第1期121-125,共5页
Xinjiang Geology
基金
国家科技重大专项(2016ZX05003-005)
新疆和吐哈油田勘探开发关键技术研究与应用下属课题准噶尔盆地油藏富集规律及勘探技术研究与应用(2017E-0401)共同资助。
关键词
电阻率
声波时差
含油饱和度
流体识别
应用
Resistivity
Acoustic time difference
Oil saturation
Fluid identification
Application 125
