Multicomponent PP and PS seismic response from volcanic gas reservoirs
X. Li, S. Chen, X. Sun, J. Pei, und H. Dai. 68th EAGE Conference and Exhibition, Seite A005+. Vienna, Austria, European Association of Geoscientists and Engineers, (Juni 2006)
Zusammenfassung
Here we present an example of using PP and PS converted-waves for
characterizing volcanic gas reservoirs in Daqing Oilfield in Northeast
China. The volcanic targets are buried at depth raging from 2800m
to 3600m, which often give rise to incoherent P-wave response. To
overcome this problem, a multicomponent seismic experiment was set
up to evaluate the converted-waves recorded by digital MEMS (micro-electro-mechanical
system) sensors. The experiment includes six 2D lines, passing through
ten boreholes drilled for the volcanic reservoirs. Several multicomponent
VSPs have also been acquired for correlation purposes. Analysis the
P- and S-waves from the target formation at the ten borehole locations
reveals very consistent P- and S-wave amplitude anomalies. From the
gas producing wells, the P-wave reflection is consistently weak and
scattered, whilst the PS-wave reflection are consistently strong
and continuous. In contrast from the non-producing wells, both PP-
and PS-waves show continuous and strong reflections. The gas reservoirs
can then be delineated from joint PP- and PS-amplitude analysis and
the results agree with the drilling results in the study area. This
provides conclusive evidence demonstrating the benefit of multicomponent
seismic data from digital MEMS sensors.
%0 Conference Paper
%1 li_etal:2006
%A Li, X. Y.
%A Chen, S.
%A Sun, X.
%A Pei, J.
%A Dai, H.
%B 68th EAGE Conference and Exhibition
%C Vienna, Austria
%D 2006
%K geophysics seismics
%P A005+
%T Multicomponent PP and PS seismic response from volcanic gas reservoirs
%U http://www.earthdoc.org/detail.php?pubid=225
%X Here we present an example of using PP and PS converted-waves for
characterizing volcanic gas reservoirs in Daqing Oilfield in Northeast
China. The volcanic targets are buried at depth raging from 2800m
to 3600m, which often give rise to incoherent P-wave response. To
overcome this problem, a multicomponent seismic experiment was set
up to evaluate the converted-waves recorded by digital MEMS (micro-electro-mechanical
system) sensors. The experiment includes six 2D lines, passing through
ten boreholes drilled for the volcanic reservoirs. Several multicomponent
VSPs have also been acquired for correlation purposes. Analysis the
P- and S-waves from the target formation at the ten borehole locations
reveals very consistent P- and S-wave amplitude anomalies. From the
gas producing wells, the P-wave reflection is consistently weak and
scattered, whilst the PS-wave reflection are consistently strong
and continuous. In contrast from the non-producing wells, both PP-
and PS-waves show continuous and strong reflections. The gas reservoirs
can then be delineated from joint PP- and PS-amplitude analysis and
the results agree with the drilling results in the study area. This
provides conclusive evidence demonstrating the benefit of multicomponent
seismic data from digital MEMS sensors.
@inproceedings{li_etal:2006,
abstract = {Here we present an example of using PP and PS converted-waves for
characterizing volcanic gas reservoirs in Daqing Oilfield in Northeast
China. The volcanic targets are buried at depth raging from 2800m
to 3600m, which often give rise to incoherent P-wave response. To
overcome this problem, a multicomponent seismic experiment was set
up to evaluate the converted-waves recorded by digital MEMS (micro-electro-mechanical
system) sensors. The experiment includes six 2D lines, passing through
ten boreholes drilled for the volcanic reservoirs. Several multicomponent
VSPs have also been acquired for correlation purposes. Analysis the
P- and S-waves from the target formation at the ten borehole locations
reveals very consistent P- and S-wave amplitude anomalies. From the
gas producing wells, the P-wave reflection is consistently weak and
scattered, whilst the PS-wave reflection are consistently strong
and continuous. In contrast from the non-producing wells, both PP-
and PS-waves show continuous and strong reflections. The gas reservoirs
can then be delineated from joint PP- and PS-amplitude analysis and
the results agree with the drilling results in the study area. This
provides conclusive evidence demonstrating the benefit of multicomponent
seismic data from digital MEMS sensors.},
added-at = {2012-09-01T13:08:21.000+0200},
address = {Vienna, Austria},
author = {Li, X. Y. and Chen, S. and Sun, X. and Pei, J. and Dai, H.},
biburl = {https://www.bibsonomy.org/bibtex/2e08fa8a03226c5397e0b63abae38d220/nilsma},
booktitle = {68th EAGE Conference and Exhibition},
interhash = {0af584ac407dd95f8c4eef3ea880ed18},
intrahash = {e08fa8a03226c5397e0b63abae38d220},
keywords = {geophysics seismics},
month = jun,
organization = {European Association of Geoscientists and Engineers},
pages = {A005+},
timestamp = {2021-02-09T13:27:42.000+0100},
title = {Multicomponent PP and PS seismic response from volcanic gas reservoirs},
url = {http://www.earthdoc.org/detail.php?pubid=225},
year = 2006
}