振幅保真的单程波方程偏移理论_张宇.pdf
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49 5 Vol. 49, No. 5
2006 9 CHINESE JOURNAL OF GEOPHYSICS Sep. , 2006
. . , 2006, 49( 5) : 1410~ 1430
Zhang Y. The theory of true amplitu e one-way wave equation migration. ChineseJ . Geophys. ( in Chinese) , 2006, 49( 5) : 1410~ 1430
张 宇
VeritasDGC Inc. , 10300 Town Park Drive, Houston, TX 77072, USA
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0001- 5733(2006) 05- 1410- 21 P631 2005- 12- 30,2006- 05- 05
The theory of true amplitude one-way wave equation migration
ZHANG Yu
VeritasDGCInc. , 10300 Town Park Drive, Houston, TX 77072, USA
Abstract In this technical report, we review the recent evelopment of true amplitu e one-way wave equation
migration an summarize the migrate amplitu e performance from ifferent one-way wave equations. To pro uce
correct amplitu e from postack phase-shift migration, we have to apply accurate geometrical sprea ing
compensation in preprocessing. Although Dubrulle. s common-offset phase-shift migration gives correct imaging
position, it is not a true amplitu e migration except for zero offset or flat reflectors. We have shown that the
conventional common-shot one-way wave equation migration oes not pro uce correct migration amplitu e. Base
on the true amplitu e one-way wave equations an the surface boun ary con ition corrections, we evelope true
amplitu e common-shot migration an have prove that it pro uces an inver
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