摘要
克拉玛依九区南齐古组稠油油藏为一套辫状河三角洲相沉积,沉积相变快,岩性复杂。利用分析化验、测井、测试和生产资料,分析低电阻率稠油油层所处的地质环境,对该区低电阻率稠油油层的成因进行了分析,认为岩性偏细、泥质胶结、微孔、微裂缝的大量存在、粘土附加导电性、黄铁矿等骨架导电性、微幅度构造以及较高地层水矿化度都是低电阻率油层形成的因素,并提出了有效的测井解释方法,以成功地识别低电阻率油层。
The heavy oil reservoir of Qigu formation in southern District No.9 of Karamay oilfield features a set of braided stream-like delta deposits with varied sedimentary facies and litholoty.The lab data,well log and testing data are used to analyze the geologic setting and genesis of the low-resistivity heavy oil reservoir.Study shows the affected factors for forming the low-resistivity reservoir include the fine llitholigy,presents of silt cementation,micropores and microfractures,additional clay conductivity,pyrite conductivity as a matrix,mini-amplitude structure and high reservoir water salinity,etc.Based on these features of such a reservoir,the effective method for well log interpretation is proposed,and recognition of the low-resistivity reservoir is successfully made.
出处
《新疆石油地质》
CAS
CSCD
北大核心
2005年第3期256-258,共3页
Xinjiang Petroleum Geology
基金
四川省重点学科建设基金项目(SZD0414)
