basalt layer seismic processing manufacturer Grasping strong production capability, advanced research strength and excellent service, Shanghai basalt layer seismic processing supplier create the value and bring values to all of customers.
WhatsApp)
below a basalt layer. However, due to shape irregularities and het erogeneities with high velocity contrasts around and within the basalts, it can be challenging for seismic processing to image the base of the basaltic layer and details of what is below . [For example, s ee Fliedner and White (2001) ].
Event-based sub-basalt imaging applied to marine seismic data from north of Shetland, UK. Norwegian Journal of Geology vol 88, pp 167-183. Trondheim 2008. ISSN 029-196X Seismic wave propagation in media with high-velocity layers (basalts) can be described as an interference of various events commonly referred to as wave types or modes.
2D Controlled Source Seismic Mapping Of The Low Velocity Layer In Magadi Basin, Kenya ... processing deep reflection seismic data. In Magadi basin, shallow seismic refraction or uphole survey has ... basalt layers of the Kirikiti platform are interbedded
Seismic properties of layer 2 basalts ... Daley et al., 2004], but seismic monitoring in basalt environments ... is more effectively used and behavior is more clearly linked to processing. A ...
streamers for sub‑basalt seismic imaging To evaluate the optimal technique for imaging beneath a complex basalt layer, Robert Dowle,1* Fabrice Mandroux,1 Robert Soubaras,1 and Gareth Williams2 compare dense wide-azimuth and broadband towed streamer acquisition solutions when deployed in an experimental survey in the Faroe-Shetland Basin. A
Jan 12, 2017· GeoTomo's GeoThrust 2D/3D seismic data processing software is now a mature system -- it has been in use by major oil companies, national oil companies, and service companies for more than twelve years. GeoThrust's workflow architecture provides the full freedom and flexibility for the user to follow any desired processing sequence.
Abstract Imaging below the basalt for hydrocarbon exploration is a global problem because of poor penetration and significant loss of seismic energy due to scattering, attenuation, absorption and mode-conversion when the seismic waves encounter a highly heterogeneous and rugose basalt layer.
A seismic line displayed in GEO ExPro caught the interest of a dedicated geologist as he spotted a pattern that resembled that of a major oil discovery he knew very well. His observation eventually led to Chevron's application in the Norwegian 20th licensing round for acreage that may include a large prospect along the North Atlantic Volcanic Margin.
is05/08 seismic processing of HA04 seismic survey........................page 4 of 22 Section 1: Introduction The Hatton ...
Sub-Basalt Imaging West of Shetland. In order to achieve sufficient bandwidth in areas where high frequencies are limited, it is necessary to extend the low frequencies. Lower frequencies are affected less by attenuation, and provide greater accuracy and stability for seismic inversion.
Improving Seismic Data Quality by Reprocessing and Redesign of a 3D Survey in an Area of Chaotically-scattered Source-generated Noise ... the strength of the primary wavefield that transmits downwards through the layers of basalt is dramatically reduced due to the strong reflectivity of the basalt layers. ... He started processing in the early ...
Further, there can be strong inhomogeneities within the salt/basalt. That makes it difficult to reconstruct a structural image of the subsurface below the top salt/basalt interface. Determining the thickness and structure of sediment packages covered by a layer of salt or basalt is very challenging using seismic .
Mar 16, 2018· Imaging below the basalt for hydrocarbon exploration is a global problem because of poor penetration and significant loss of seismic energy due to scattering, attenuation, absorption and mode-conversion when the seismic waves encounter a highly heterogeneous and rugose basalt layer. The conventional (short offset) seismic data acquisition, processing and modeling techniques adopted by .
quence of basalt flows originating from a series of vents. The final site, Mountain Home, is located in a fault-bounded sed-imentary basin with both surface and buried basalt layers. Here, we discuss surface and borehole results using vertical seismic profiling (VSP) and surface seismic methods to show
Multifocusing Seismic Processing to Improve Poor Response Areas below Basalt Layers, Canadon Asfalto Basin, Argentina Conference Paper (PDF Available) · .
It is thus understandable that considerable time and effort is expended in any processing project on the final parameters of seismic display so as to satisfy the individual tastes of the interpreter. Such things as frequency content, gain, trace spacing, and type of display are all up for grabs (see "Displaying seismic .
meters of basalt, rhyolite, and sediments of Cenozoic age. In some areas within the Snake River Plain, as much as 1 km of interbedded basalt and sediments lies on top of older, rhyolitic volcanic rocks (Walker, 1964). The basalt flows in the upper 150 m of the Snake River Plain are mostly compound pahoehoe flows, 3-to-5-m
A specific case, which is of great interest to petroleum exploration companies, occurs on continental shelf areas where potentially hydrocarbon-bearing strata are overlain by extensive extrusive igneous rocks. In this situation, standard seismic processing is often unable to resolve the structure beneath such basalt layers.
Effect of flood basalt stratigraphy on the phase of seismic waveforms recorded offshore Faroe Islands Juerg Schuler 1, Philip A. F. Christie2, and Robert S. White ABSTRACT The generation of short-period multiples between highly heterogeneous layers of basalt flows can strongly alter transmit-ted seismic wavefields. These layers filter and ...
Processing and interpretation of reflection seismic data from a basalt-covered area Significant parts of the Norwegian Sea and adjacent northeast Atlantic Ocean have a basalt cover at shallow depth. In much of this area there are prospective petroleum resources both beneath and intercalated with the basalt.
Seismic refraction across the La Bajada Fault Yusliza Mohd Sufian UNIVERSITY OF TEXAS AT AUSTIN SAGE 2004 Outline Objectives Data processing Results Conclusions Objective To find layers deeper than the basalt layer (below 80 m depth) using the wide angle reflection method SAGE 2004 Seismic Line Data Processing Deconvolution Wide angle reflection method T2 vs. X2 method .
around and within the basalts, it can be challenging for seismic processing to image the base of the basaltic layer and details of what is below. The Mesozoic in this area are mostly overlain by the Basalt flows of Late Cretaceous – Early Paleocene age,
variable topography and lateral velocity changes each caused problems for seismic data acquisition and processing as they gave rise to seismic signal attenuation, noise contamination and distortions of arrival times. The issues of imaging below a high velocity thrust layer are similar to those of imaging beneath basalt and have not yet been ...
Seismic imaging of sub-basalt sedimentary layers is difficult due to high impedance of the basalt layer, the roughness of the top and bottom of the basalt layer and sometimes the heterogeneities within the basalt layer. In this thesis we identify specific problems within the modern imaging technology which limit sub-basalt imaging. The basic
WhatsApp)
Online Chat
Sales Hotline