摘要：Rock physics studies have shown that velocity dispersion is often associated with hydrocarbon deposit, which results in P-wave reflection coefficients varying with frequency. This effect is often neglected in the conventional amplitude versus angle or offset inversion, and thus error is introduced. Here we propose a method for inverting for dispersive velocity from the frequency-dependent P-wave reflection coefficients; the method is called amplitude variation with angle and frequency AVAF inversion. We employ forward modeling based on propagator matrices that include frequency-dependent elastic coefficients and a variant of the simulated annealing method called the heat-bath algorithm for inversion of layer parameters. In our application, the thickness of the dispersive layer is inverted for simultaneously. Synthetic and field data examples demonstrate the ability and usefulness of this method for detecting hydrocarbon bearing formations.

关键字：velocity dispersion AVAF inversion AVA inversion

ISSN号：1742-2132

卷、期、页：卷: 14 期: 5 页: 1167-1176

发表日期：2017-10-01

期刊分区（SCI为中科院分区）：四区

收录情况：SCIE（科学引文索引网络版）,ESI（基本科学指标数据库）

发表期刊名称：JOURNAL OF GEOPHYSICS AND ENGINEERING

参与作者：Sen, Mrinal K.

第一作者：骆春妹,王尚旭,袁三一

论文类型：期刊论文

论文概要：骆春妹,Sen, Mrinal K.,王尚旭,袁三一，An AVAF inversion method for detecting hydrocarbons，JOURNAL OF GEOPHYSICS AND ENGINEERING，2017，卷: 14 期: 5 页: 1167-1176

论文题目：An AVAF inversion method for detecting hydrocarbons