PSDM simulation in seismic survey design
عنوان دوره: هجدهمین کنفرانس ژئوفیزیک ایران
نویسندگان
1دانشجوی دکتری
2استاد بازنشسته موسسه ژئوفیزیک دانشگاه تهران و استاد دانشکده مهندسی نفت دانشگاه صنعتی امیرکبیر
3استاد دانشکده مهندسی معدن و متالوژی داشنگاه امیر کبیر
4کارشناس ارشد اداره ژئوفیزیک، مدیریت اکتشاف شرکت ملی نفت ایران
چکیده
Seismic modeling aids the geophysicists to have a better understanding of the subsurface image before the seismic acquisition, processing, and interpretation especially in complex structures. In this regard, seismic survey modeling is employed to build a model close to the real structure, and obtain very realistic synthetic seismic data. Therefore, a survey designer can consider the effects of various survey parameters on the resulting image by some illumination and resolution analyses. The primary objective of this study is to apply the seismic modeling on designing the seismic survey parameters such as wavelets, and their frequencies to analyze the resolution and illumination of the faulted target. A pre-stack depth migration simulator was used to evaluate the source wavelets with different frequencies on the resulting seismic image. Results verified that a geophysicist could improve the image of fault planes in a seismic section using the ray-based analyses, concerning illumination and resolution of fault image.
کلیدواژه ها
 
Title
PSDM simulation in seismic survey design
Authors
Abdolrahim Javaherian, Hossein Hassani, MARYAM SADRI
Abstract
Seismic modeling aids the geophysicists to have a better understanding of the subsurface image before the seismic acquisition, processing, and interpretation especially in complex structures. In this regard, seismic survey modeling is employed to build a model close to the real structure, and obtain very realistic synthetic seismic data. Therefore, a survey designer can consider the effects of various survey parameters on the resulting image by some illumination and resolution analyses. The primary objective of this study is to apply the seismic modeling on designing the seismic survey parameters such as wavelets, and their frequencies to analyze the resolution and illumination of the faulted target. A pre-stack depth migration simulator was used to evaluate the source wavelets with different frequencies on the resulting seismic image. Results verified that a geophysicist could improve the image of fault planes in a seismic section using the ray-based analyses, concerning illumination and resolution of fault image.
Keywords
seismic modeling, ray tracing, PSDM simulator, seismic resolution, illumination analysis, fault imaging