论文详情
基于双相介质理论的ABV 油气检测技术及应用
断块油气田
2013年 20卷 第04期
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Title
ABV hydrocarbon detection technology and its applications
based on theory of two-phase medium
Organization
Research Institute of Exploration and Development, Daqing Oilfield Co. Ltd.
摘要
低频异常增强(ABV)油气检测技术在双相介质理论基础上,能够分析储集层中油、气的“低频共振,高频衰减”现
象,其中气的“衰减”现象明显,而油的“共振”现象明显。通过对比各种时频分析方法,选用广义S 变换时频分析方法得到高
精度的时频谱,使用突出地层含油引起的低频共振频谱特征的方法,记录频谱特征中远离正常频率规律的异常低频能量,
得到ABV 检测数据体。将此技术应用于大庆长垣高台子地区扶余油层,能快速预测储层的含油性,不受井约束,取得了良
好的效果。
Abstract
Based on the theory of two-phase media and using ABV hydrocarbon detection technology, this paper analyzes the
phenomenon of low-frequency resonance and high-frequency actuation for oil and gas in reservoir. Among them, the gas actuation is
obvious and oil resonance is obvious. It also compares all kinds of time-frequency analysis method and employs generalized S
transform time-frequency analysis method to get high-precision time-frequency spectrum. And a method of highlighting low-frequency resonance spectrum features caused by hydrocarbon is presented, that is recording the abnormal low-frequency energy of spectral characteristics away from the normal frequency. Using this technolog, the data volume of ABV hydrocarbon detection can be gotten. In application of the method to predict the oil-bearing ability of Fuyu reservoir in Gaotaizi area of Daqing placanticline, a good effect has been obtained.
关键词:
双相介质;广义S 变换;时频谱;低频共振;含油性预测;
Keywords:
two-phase medium;
generalized S transform;
time-frequency spectrum;
low-frequency resonance;
oil-bearing ability
prediction;
DOI
10.6056/dkyqt201304007