The synthesis and decomposition of signals and its application in Subei basin exploration

Subei basin is the most promising onshore oil and gas bearing basin in South China. With the deepening of exploration, subtle hydrocarbon reservoirs have gradually become the major target of exploration. Seismic record often shows low signal to noise ratio (SNR), resulting that conventional seismic...

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Main Authors:	Bao, Xiangsheng, Liu, Quanwen, Zhou, Haiyan
Format:	Article
Language:	English
Published:	Penerbit Universiti Kebangsaan Malaysia 2017
Online Access:	http://journalarticle.ukm.my/11684/ http://journalarticle.ukm.my/11684/ http://journalarticle.ukm.my/11684/1/18%20SM46%2011.pdf

id	ukm-11684
recordtype	eprints
spelling	ukm-116842018-05-28T01:29:57Z http://journalarticle.ukm.my/11684/ The synthesis and decomposition of signals and its application in Subei basin exploration Bao, Xiangsheng Liu, Quanwen Zhou, Haiyan Subei basin is the most promising onshore oil and gas bearing basin in South China. With the deepening of exploration, subtle hydrocarbon reservoirs have gradually become the major target of exploration. Seismic record often shows low signal to noise ratio (SNR), resulting that conventional seismic records have three shortcomings in the identification of subtle reservoirs: difficult to identify small faults; difficult to show the distribution law of sand body; and difficult to find traps. In order to solve this problem, we conducted the research on signal synthesis and decomposition. The research results showed that seismic record of different frequency bands can be restored from original seismic record and both of them contain real stratigraphic information. Based on this, when a certain band or several bands in the original seismic record is affected by noise and result in the reduction of SNR of seismic record, seismic information seriously affected by noise can be abandoned, leaving only less affected seismic information to obtain seismic record with higher SNR. In the collection of actual seismic record, the low and high band seismic information is seriously affected by noise, while medium-band seismic information is less affected. Therefore, based on this, the medium-band seismic information can be restored from the original seismic record to be new record, which is called predominant frequency band seismic record. In this paper, based on the research result, the predominant frequency band seismic record was applied to the two areas of Subei basin and the result showed the research result can be used as a good instruction on well placement and the improvement of drilling success rate. Penerbit Universiti Kebangsaan Malaysia 2017-11 Article PeerReviewed application/pdf en http://journalarticle.ukm.my/11684/1/18%20SM46%2011.pdf Bao, Xiangsheng and Liu, Quanwen and Zhou, Haiyan (2017) The synthesis and decomposition of signals and its application in Subei basin exploration. Sains Malaysiana, 46 (11). pp. 2169-2177. ISSN 0126-6039 http://www.ukm.my/jsm/english_journals/vol46num11_2017/contentsVol46num11_2017.htm
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Kebangasaan Malaysia
building	UKM Institutional Repository
collection	Online Access
language	English
description	Subei basin is the most promising onshore oil and gas bearing basin in South China. With the deepening of exploration, subtle hydrocarbon reservoirs have gradually become the major target of exploration. Seismic record often shows low signal to noise ratio (SNR), resulting that conventional seismic records have three shortcomings in the identification of subtle reservoirs: difficult to identify small faults; difficult to show the distribution law of sand body; and difficult to find traps. In order to solve this problem, we conducted the research on signal synthesis and decomposition. The research results showed that seismic record of different frequency bands can be restored from original seismic record and both of them contain real stratigraphic information. Based on this, when a certain band or several bands in the original seismic record is affected by noise and result in the reduction of SNR of seismic record, seismic information seriously affected by noise can be abandoned, leaving only less affected seismic information to obtain seismic record with higher SNR. In the collection of actual seismic record, the low and high band seismic information is seriously affected by noise, while medium-band seismic information is less affected. Therefore, based on this, the medium-band seismic information can be restored from the original seismic record to be new record, which is called predominant frequency band seismic record. In this paper, based on the research result, the predominant frequency band seismic record was applied to the two areas of Subei basin and the result showed the research result can be used as a good instruction on well placement and the improvement of drilling success rate.
format	Article
author	Bao, Xiangsheng Liu, Quanwen Zhou, Haiyan
spellingShingle	Bao, Xiangsheng Liu, Quanwen Zhou, Haiyan The synthesis and decomposition of signals and its application in Subei basin exploration
author_facet	Bao, Xiangsheng Liu, Quanwen Zhou, Haiyan
author_sort	Bao, Xiangsheng
title	The synthesis and decomposition of signals and its application in Subei basin exploration
title_short	The synthesis and decomposition of signals and its application in Subei basin exploration
title_full	The synthesis and decomposition of signals and its application in Subei basin exploration
title_fullStr	The synthesis and decomposition of signals and its application in Subei basin exploration
title_full_unstemmed	The synthesis and decomposition of signals and its application in Subei basin exploration
title_sort	synthesis and decomposition of signals and its application in subei basin exploration
publisher	Penerbit Universiti Kebangsaan Malaysia
publishDate	2017
url	http://journalarticle.ukm.my/11684/ http://journalarticle.ukm.my/11684/ http://journalarticle.ukm.my/11684/1/18%20SM46%2011.pdf
first_indexed	2023-09-18T20:00:54Z
last_indexed	2023-09-18T20:00:54Z
_version_	1777406841442009088

The synthesis and decomposition of signals and its application in Subei basin exploration

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