Seismic Data Acquisition | 3d Seismic Data Acquisition | Pcmcia Data Acquisition | Naeva Geophysics | Pc104 Data Acquisition | Digatron Data Acquisition | Traqmate Data Acquisition | Paradigm Geophysical Corp



Seismic Data Acquisition




Seismic Data Acquisition System For Design & Implementation Using PC104


The system for seismic data acquisition converting from analog to digital data has been integrated in order to develop an acquisition device. Contrary to digitizers currently used seismic data acquisition using PC-104 or industrial personal computers have been able to produce a more affordable digitizer (i.e. an analog to digital converter) which is proven to be able to overcome issues such as portability, efficiency and durability.

PC104 which was used in the study was Arbor production with Emcore n511 serial number within the operating system and the programming languages were DOS 6.02 and C respectively. This research resulted in the design of a prototype device which was based on PC104 and it created a program to record seismic data.

The program was compiled using Microsoft's Windows XP operating system using Borland C 5.02 software. The input range of the data acquisition system that was tested is ± 10V.

The performance test results showed a resolution of ±0.915 mV, a linearity of 0.2% full-scale reading, instrument work noise was ±1.2 mV with a maximum frequency distortion of 2%.

The instrument performed well at a rate of between 10 Hz to 5000 Hz. but the software had a limited capacity of only 1000 Hz. From the results of a comparative tests with Digitizer Güralp Type CGM-DM16R8, the value of the RMS error was 4.64%.


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By Luiz Fernando De Ros
Despite the spectacular advances in seismic and log acquisition and interpretation, and in 3D and 4D modeling, the risks involved in the exploration of new, deeper, depositional, tectonic or diagenetically-complex prospects remain large. This, essentially because these sophisticated methods simply lack information on an essential part of petroleum systems: the reservoir. Most new prospects represent clastic or carbonate rocks with strong diagenesis.
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Seismic Data Acquisition | 3d Seismic Data Acquisition | Pcmcia Data Acquisition | Naeva Geophysics | Pc104 Data Acquisition | Digatron Data Acquisition | Traqmate Data Acquisition | Paradigm Geophysical Corp