AVD和DR反演

替人擦屁股,发现报告里有个“AVD和DR反演”,只听说过AVO,第一反应是写错了,百度了一下才知道真有AVD,看来做人不能太想当然,尤其是自己不熟悉的领域。


http://www.airiti.com/ceps/ec_en/ecjnlarticleView.aspx?jnlptype=4&atliid=309401&p=c965c90d85cc44f212bd9b7d0743&user=baidu


石油物探>45卷2期
Total Pages: 6 24 shinyi modified 将需求点数功能注解-->  Full-text:
ID
309401
Subject/Title
新场气田须家河气藏含气性地震检测研究
Alternative Title
Seismic Gas Bearing Detection in T3x Gas Reservoirs in Xinchang Gas Field
Author
李显贵(Xian-Gui Li);徐天吉(Tian-Ji Xu);甘其刚(Qi-Gang Gan)
Journal Title
石油物探
Vol./Publishing Date
45卷2期(2006/03)
Page(s)
186-191
Language
Chinese
Abstract
新场气田须家河气藏属于深层陆相致密碎屑岩气藏,具有致密、低孔渗、薄互层、多层叠置和强非均质性的特点。勘探成功率低、效果差。为此,针对须家河气藏开展了一系列方法研究,形成了一套针对此类气藏的含气检测技术―吸收速度频散(AVD)预测技术、动态能谱(DR)预测技术、瞬时子波能量吸收(WEA)预测技术、Proni吸收滤波(PF)预测技术、储层频谱成像吸收梯度(AG)预测技术以及AVO反演属性(剪切模量μ、拉梅常数λ、泊松比σ)分析技术等。利用这套技术对须家河气藏进行了含气性检测,结果表明,含气砂岩储层具有高AVD异常、高DR异常、高WEA异常、低PF异常、低AG异常、高μ异常、低λ异常和低σ异常等特征。因此,综合应用这些异常特征信息,可以对非均匀致密砂岩进行含气性检测。
As a tight elastic rocks reservoir in deep land-facies strata, T3x gas reservoir is characterized by tightness, low permeability, thin inter-bed, multilayer nappe and high heterogeneity in Xinchang Gas Field. A series of seismic technologies for detection is developed, such as AVD (seismic absorption and velocity dispersion), DR (dynamic register), WEA (wave energy attenuation), PF (Proni filter), AG (absorption grads) and the AVO attributes (Lamé's modulus λ, the shear modulus μ and the Poisson ratio σ) analysis, etc. The testing results show that the characteristics of gas bearing sandstone in T3x are AVD, high DR, high WEA, low PF, low AG, high μ, low λ and low σ, etc. By integrating above information, the gas bearing prediction to tight clastic rocks reservoir with heterogeneity can be achieved.
Keyword(s)
致密,非均质,碎屑岩,含气性检测,须家河气藏;tight,heterogeneity,elastic rock,gas bearing detection,T3x gas reservoirs
CEPS Category
Subject Catagory>Applied Science>Thermodynamics

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