Land 3D-seismic data: Preprocessing quality control utilizing survey design specifications, noise properties, normal moveout, first breaks, and offset

Abstract

The recent proliferation of the 3D reflection seismic method into the near-surface area of geophysical applications, especially in response to the emergence of the need to comprehensively characterize and monitor near-surface carbon dioxide sequestration in shallow saline aquifers around the world, justifies the emphasis on cost-effective and robust quality control and assurance (QC/QA) workflow of 3D seismic data preprocessing that is suitable for near-surface applications. The main purpose of our seismic data preprocessing QC is to enable the use of appropriate header information, data that are free of noise-dominated traces, and/or flawed vertical stacking in subsequent processing steps. In this article, I provide an account of utilizing survey design specifications, noise properties, first breaks, and normal moveout for rapid and thorough graphical QC/QA diagnostics, which are easy to apply and efficient in the diagnosis of inconsistencies. A correlated vibroseis time-lapse 3D-seismic data set from a CO 2 -flood monitoring survey is used for demonstrating QC diagnostics. An important by-product of the QC workflow is establishing the number of layers for a refraction statics model in a data-driven graphical manner that capitalizes on the spatial coverage of the 3D seismic data.

Su Deer special structure with 3 d seismic data interpretation

“…Fig3. T5 structure diagram According to section and plane characteristics of fracture, fracture can be divided into the synsedimentary fault zone, fracture, fracture, early return late boundary die fracture [5]. Synsedimentary fault has obvious control effect to zone formation, late breaking is the most developed a fault zone, the oil and gas migration and the formation of local structure, control return fracture rupture surface is very clear, local slip is very small, that return the compressional reverse fault effect, boundary die early fracture of the hinggan mountains early sedimentary strata control role, after several times have been destroyed by the tectonic movement, the demise of the fault.…”

A Novel Static Correction Approach for Eliminating the Effect of Geophones—A Case Study in Coal Reservoirs, Ordos Basin, China

“…Seismic prospecting is a robust technology for carbonate and coal reservoir exploration [1,2]. Static correction is an indispensable step in seismic processing and it has a severe effect on the later steps, including velocity analysis, data stacking, and imaging workflows [3][4][5]. For land seismic data acquisitions, the complex surface geologic conditions, such as weathered layers, sand dunes, and human-induced obstacles, will influence the quality of the recorded data due to the multipath of seismic waves on the surface [6].…”

Improvement of seismic structural interpretation of Zagros fold-thrust belt by dip scanning in common diffraction surface imaging method

“…Seismic modeling also has been extensively used to plan accurate seismic acquisition surveys over complex salt related structures (Gjøystdal et al 2007) and to improve seismic processing flows for processing related data (Raef 2009;Huang et al 2010). However, in such media, due to seismic velocity heterogeneity and structural complexity, seismic rays are bent and produce non-hyperbolic arrival times in addition to the hyperbolic ones (Höcht et al 1999) which make it difficult for defining morphology of the subsurface structures (Pu et al 2009).…”