Observations of geophone spurious resonance
نویسندگان
چکیده
منابع مشابه
Spurious Hyperleukocytosis
Hyperleukocytosis is an oncological emergency but is extremely rare in non-malignant conditions. Nucleated RBCs give rise to spuriously high total leucocyte count and cause clinical dilemma. Thalassemia major patients are known to have leucocytosis even after correction for nucleated RBCs. We report a case of undiagnosed Thalassemia major in a 4 month old infant with total leucocyte count highe...
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In contrast to prestack migration methods based on data binning, common image gathers produced by shot-geophone migration exhibit the appropriate semblance property in either offset domain (focussing at zero offset) or angle domain (focussing at zero slope), when the migration velocity is kinematically correct and when events to be migrated arrive in the data along non-turning rays. The latter ...
متن کاملReverse time shot-geophone migration
Shot-geophone migration, commonly accomplished using wavefield depth extrapolation (“survey sinking”), has a two way reverse time realization as well. The reverse time version permits imaging of overturned reflections. Shot-geophone migration differs from other prestack migrations in the definition of the prestack image volume which it creates. This difference is most clearly seen by identifyin...
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Prestack migration methods based on data binning produce kinematic artifacts, i.e. coherent events not corresponding to actual reflectors, in the prestack image volume, when the medium is strongly refracting. Shot-geophone (“survey sinking”) migration, on the other hand, does not produce such artifacts when events to be migrated arrive in the data along non-turning rays. In contrast to prestack...
متن کاملspurious hyperleukocytosis
hyperleukocytosis is an oncological emergency but is extremely rare in non-malignant conditions. nucleated rbcs give rise to spuriously high total leucocyte count and cause clinical dilemma. thalassemia major patients are known to have leucocytosis even after correction for nucleated rbcs. we report a case of undiagnosed thalassemia major in a 4 month old infant with total leucocyte count highe...
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ژورنال
عنوان ژورنال: ASEG Extended Abstracts
سال: 2019
ISSN: 2202-0586
DOI: 10.1080/22020586.2019.12073193