地质科技情报2011，Vol.30Issue(1)：114-117,4.
塔河油田三叠系碎屑岩储层地震分辨率及频谱特征理论分析
Theoretical Study of Seismic Spectra Characters and Seismic Resolution of Triassic Sandstones in Tahe Oilfield
漆立新 1顾汉明 2李宗杰 3杨林4
作者信息
- 1. 中国地质大学,研究生院,武汉,430074
- 2. 中国石油化工股份有限公司西北油田分公司勘探开发研究院,乌鲁木齐,830011
- 3. 中国地质大学,地空学院,武汉,430074
- 4. 中国地质大学,构造与油气资源教育部重点实验室,武汉,430074
- 折叠
摘要
Abstract
The reservoir in Triassic sandstones in Tahe Oilfield consists of a series of thin layers of sand and shale. This paper analyzes the features of the statistics of reservoir thickness from drilling in the oilfield and presents respectively analytic expressions of amplitude spectra of primary pulse responses in time domain via thickness and layers number of sandstone. Also analyzed are the features of synthetic seismograms and their amplitude spectra corresponding to various thickness of sandstone and intervals between sandstones. The results show that more than three of extremes on the amplitude spectra will occur within a frequency which equals the reciprocal of echo time in a sandstone when the interval between the two sandstones is of 1/8 to 1/4 wavelength in sandstone. Hence, the superposition mode can be determined based on this character.关键词
地震分辨率/叠置砂体/频谱特征Key words
seismic resolution/ superposition sandstone/ spectra character分类
能源科技引用本文复制引用
漆立新,顾汉明,李宗杰,杨林..塔河油田三叠系碎屑岩储层地震分辨率及频谱特征理论分析[J].地质科技情报,2011,30(1):114-117,4.
