| Autor: |
S. Singh, Bill Troyer, Jesse Shaw, Jane Burger, Rachel Ho, Stan Lee |
| Rok vydání: |
1997 |
| Předmět: |
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| Zdroj: |
SEG Technical Program Expanded Abstracts 1997. |
| DOI: |
10.1190/1.1885975 |
| Popis: |
A n e w a p p r o a c h f o r i m a g i n g a l o w amplitude zone of the South Caspian Sea has b e e n c o n d u c t e d . U s i n g o f f s e t d o m a i n amplitu de compensa t ion a n d p r e s t a c k tomographic invers ion , the qua l i ty o f the migrated image was significantly improved. We es t ima ted pore and f rac tu re p ressures b a s e d o n t h e t o m o g r a p h i c i n v e r s i o n velocities. Results show the pressure ranges f rom hydros ta t i c to medium pressure . We also conduc ted v i sco-acous t ic model ing to i n v e s t i g a t e t h e n a t u r e o f s e i s m i c e n e r g y attenuation. Comparing the synthetic shot records with field data, indicates three low Q z o n e s ( v a l u e s l e s s t h a n 5 0 ) a t s h a l l o w dep th . At g rea te r dep ths , Q va lues r each 175 . |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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