IMPLICIT STATIC CORRECTIONS IN PRESTACK MIGRATION OF COMMON-SOURCE DATA

被引：32

作者：

MCMECHAN, GA

CHEN, HW

机构：

来源：

GEOPHYSICS | 1990年 / 55卷 / 06期

关键词：

D O I：

10.1190/1.1442887

中图分类号：

P3 [地球物理学]; P59 [地球化学];

学科分类号：

0708 ; 070902 ;

摘要：

Static effects due to surface topography and near-surface velocity variations may be accurately compensated for, in an implicit way, during prestack reverse-time migration of common-source gathers, obviating the need for explicit static corrections. Receiver statics are incorporated by extrapolating the observed data from the actual recorder positions; source statics are incorporated by computing the excitation-time imaging conditions from the actual source positions. -Authors

引用

收藏

页码：757 / 760

页数：4

相关论文

共 14 条

[1] WAVE-EQUATION DATUMING [J].

BERRYHILL, JR .

GEOPHYSICS, 1979, 44 (08) :1329-1344

[2]

BERRYHILL JR, 1984, 54TH ANN INT M SOC E, P397

[3] REVERSE-TIME MIGRATION OF OFFSET VERTICAL SEISMIC PROFILING DATA USING THE EXCITATION-TIME IMAGING CONDITION [J].

CHANG, WF ;

MCMECHAN, GA .

GEOPHYSICS, 1986, 51 (01) :67-84

[4] REVERSE-TIME WAVE-FIELD EXTRAPOLATION, IMAGING, AND INVERSION [J].

ESMERSOY, C ;

ORISTAGLIO, M .

GEOPHYSICS, 1988, 53 (07) :920-931

[5]

HATTON L, 1986, BLACKWELL SCI PUBL

[6] SUPPRESSING THE UNWANTED REFLECTIONS OF THE FULL-WAVE EQUATION [J].

LOEWENTHAL, D ;

STOFFA, PL ;

FARIA, EL .

GEOPHYSICS, 1987, 52 (07) :1007-1012

[7] SYNTHETIC FINITE-OFFSET VERTICAL SEISMIC PROFILES FOR LATERALLY VARYING MEDIA [J].

MCMECHAN, GA .

GEOPHYSICS, 1985, 50 (04) :627-636

[8] INVERSION = MIGRATION + TOMOGRAPHY [J].

MORA, P .

GEOPHYSICS, 1989, 54 (12) :1575-1586

[9] MIGRATION OF COMMON-SHOT GATHERS [J].

RESHEF, M ;

KOSLOFF, D .

GEOPHYSICS, 1986, 51 (02) :324-331

[10] RESIDUAL STATICS ANALYSIS AS A GENERAL LINEAR INVERSE PROBLEM [J].

WIGGINS, RA ;

LARNER, KL ;

WISECUP, RD .

GEOPHYSICS, 1976, 41 (05) :922-938