000			02213nmc a2200277 4500
005			20260520005438.0
008			260224s xxu esp
041			_aEspañol
082			_a068.82 553.28 C62 2018 0015644
245	0	0	_aMuy bajas frequencias tecnologías para mejorarla resolución sísmica
270			_a30/06/2022 ; 21/02/2019
300			_a7 p. ; 405-412
520			_aIn 2016, a new seismic vibroseis data set was acquired over the Neuquén Basin in Argentina. The survey was acquired and processed using a wide frequency spectrum toward the low (below 2Hz). This was the first implementation of this technology in Argentina.This survey was designed using the same resources (equipment and time) as a conventional survey and was necessary to perform tests of source parameters that show that this bandwidth is generated in compliance with the quality specifications of the frequencies usually employed. The trucks vibrators are able to start the sweep in frequencies below 2 Hz.The general processing workflow was comparable to that for conventional land acquisition. The flow includes additionally steps to mitigate the noises in the extended bandwidth in low frequency (ground roll) in a selective manner, preserving the reflection signals that were usually dimmed completely. On the receiver side, the distortion introduced by the equipment ś response, in this case from some Hertz above 10 to the low end, was addressed.The improvement in the predictability of simultaneous inversion in this area was confirmed on a line that passes through six wells. Differences were observed to show improvement in the low-frequency model that incorporated the seismic.
773			_g
942			_cCONGTP
100			_aD'Biassi, Tomas _9643
100	1		_aGoñi, Gabriela _9644
100	1		_aCoetsee, Fernando _9645
100	1		_aPérez Castresana, Clemente _9646
100	1		_aLorenzo, Daniel _9647
100	1		_aPianelli, Luis _9648
111	2		_aSimposio de Geofísica (2018 nov. 5 - 9 : Mendoza) _9561
650		0	_aSísmica _9649
999			_c128402 _d128402
856			_uhttps://biblioteca.iapg.org.ar/ArchivosAdjuntos/Conexplor2018/SGeof/1479.pdf