摘要
根据裂缝的尺度不同,检测裂缝的方法多种多样,检测效果也不尽相同。纵波方位各向异性裂缝预测技术是目前国内外正在发展和不断完善的技术。利用地震纵波在各向异性介质中传播时发生振幅、频率、速度等随方位角的变化,研究了深层火山岩裂缝发育方位和发育密度的检测方法,该方法预测结果与裂缝发育带的微观特征有更加密切的关系。以徐家围子断陷F区块的火山岩储集层为目标进行了裂缝检测,取得了较好的效果。
In view of fractural detection, a variety of methods are adopted in terms of fractural size, but different methods give some different effects. P-wave azimuth anisotropy technique is now one of developing and improving techniques for reservoir fractural detection at home and abroad. According to variation of amplitude, frequency and velocity with azimuth when P-wave propagates in anisotropy medium, this paper presents a method for detection of fracture-developed azimuth and density in deep volcanic reservoir. It is found that the prediction result by this method is related closely with microscopic feature of fracture-developed zone. Taking the volcanic reservoir in F block in Xujiaweizi fault depression as a target, its fractural detection has been made with good effect.
出处
《新疆石油地质》
CAS
CSCD
北大核心
2010年第1期96-99,共4页
Xinjiang Petroleum Geology
关键词
纵波
各向异性
裂缝
振幅
频率
P-wave
anisotropy
fracture
amplitude
frequency
