Mapping the base of sand dunes using a new design of land-streamer for static correction applications

Handle URI:
http://hdl.handle.net/10754/334515
Title:
Mapping the base of sand dunes using a new design of land-streamer for static correction applications
Authors:
Almalki, H.; Alkhalifah, Tariq Ali ( 0000-0002-9363-9799 )
Abstract:
The complex near-surface structure is a major problem in land seismic data. This is more critical when data acquisition takes place over sand dune surfaces, where the base of the sand acts as a trap for energy and, depending on its shape, can considerably distort conventionally acquired seismic data. Estimating the base of the sand dune surface can help model the sand dune and reduce its harmful influence on conventional seismic data. Among the current methods to do so are drilling upholes and using conventional seismic data to apply static correction. Both methods have costs and limitations. For upholes, the cost factor and their inability to provide a continuous model is well realized. Meanwhile, conventional seismic data lack the resolution necessary to obtain accurate modeling of the sand basement. We developed a method to estimate the sand base from land-streamer seismic acquisition that is developed and geared to sand surfaces. Seismic data acquisition took place over a sand surface in the Al-Thumamah area, where an uphole is located, using the developed land-streamer and conventional spiked geophone systems. Land-streamer acquisition not only provides a more efficient data acquisition system than the conventional spiked geophone approach, but also in our case, the land-streamer provided better quality data with a broader frequency bandwidth. Such data enabled us to do accurate near-surface velocity estimation that resulted in velocities that are very close to those measured using uphole methods. This fact is demonstrated on multiple lines acquired near upholes, and agreement between the seismic velocities and the upholes is high. The stacked depth seismic section shows three layers. The interface between the first and second layers is located at 7 m depth, while the interface between second and third layers is located at 68 m depth, which agrees with the uphole result. 2012 The Author(s).
KAUST Department:
Physical Sciences and Engineering (PSE) Division
Citation:
Almalki H, Alkhalifah T (2012) Mapping the base of sand dunes using a new design of land-streamer for static correction applications. Journal of Petroleum Exploration and Production Technology 2: 57-65. doi:10.1007/s13202-012-0022-1.
Publisher:
Springer Science + Business Media
Journal:
Journal of Petroleum Exploration and Production Technology
Issue Date:
16-May-2012
DOI:
10.1007/s13202-012-0022-1
Type:
Article
ISSN:
21900558
Appears in Collections:
Articles; Physical Sciences and Engineering (PSE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorAlmalki, H.en
dc.contributor.authorAlkhalifah, Tariq Alien
dc.date.accessioned2014-11-11T14:27:57Z-
dc.date.available2014-11-11T14:27:57Z-
dc.date.issued2012-05-16en
dc.identifier.citationAlmalki H, Alkhalifah T (2012) Mapping the base of sand dunes using a new design of land-streamer for static correction applications. Journal of Petroleum Exploration and Production Technology 2: 57-65. doi:10.1007/s13202-012-0022-1.en
dc.identifier.issn21900558en
dc.identifier.doi10.1007/s13202-012-0022-1en
dc.identifier.urihttp://hdl.handle.net/10754/334515en
dc.description.abstractThe complex near-surface structure is a major problem in land seismic data. This is more critical when data acquisition takes place over sand dune surfaces, where the base of the sand acts as a trap for energy and, depending on its shape, can considerably distort conventionally acquired seismic data. Estimating the base of the sand dune surface can help model the sand dune and reduce its harmful influence on conventional seismic data. Among the current methods to do so are drilling upholes and using conventional seismic data to apply static correction. Both methods have costs and limitations. For upholes, the cost factor and their inability to provide a continuous model is well realized. Meanwhile, conventional seismic data lack the resolution necessary to obtain accurate modeling of the sand basement. We developed a method to estimate the sand base from land-streamer seismic acquisition that is developed and geared to sand surfaces. Seismic data acquisition took place over a sand surface in the Al-Thumamah area, where an uphole is located, using the developed land-streamer and conventional spiked geophone systems. Land-streamer acquisition not only provides a more efficient data acquisition system than the conventional spiked geophone approach, but also in our case, the land-streamer provided better quality data with a broader frequency bandwidth. Such data enabled us to do accurate near-surface velocity estimation that resulted in velocities that are very close to those measured using uphole methods. This fact is demonstrated on multiple lines acquired near upholes, and agreement between the seismic velocities and the upholes is high. The stacked depth seismic section shows three layers. The interface between the first and second layers is located at 7 m depth, while the interface between second and third layers is located at 68 m depth, which agrees with the uphole result. 2012 The Author(s).en
dc.language.isoenen
dc.publisherSpringer Science + Business Mediaen
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/en
dc.subjectLand-streameren
dc.subjectSeismic velocityen
dc.subjectStatic correctionen
dc.subjectData acquisition systemen
dc.subjectFrequency band widthen
dc.subjectSeismic acquisitionen
dc.subjectSeismic data acquisitionsen
dc.subjectSeismic velocitiesen
dc.subjectVelocity estimationen
dc.subjectData acquisitionen
dc.subjectEstimationen
dc.subjectLandformsen
dc.subjectSanden
dc.subjectSeismic responseen
dc.subjectSeismic wavesen
dc.titleMapping the base of sand dunes using a new design of land-streamer for static correction applicationsen
dc.typeArticleen
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.identifier.journalJournal of Petroleum Exploration and Production Technologyen
dc.eprint.versionPublisher's Version/PDFen
dc.contributor.institutionOil and Gas Research Institute, King Abdulaziz City for Science and Technology (KACST), Riyadh, Saudi Arabiaen
dc.contributor.affiliationKing Abdullah University of Science and Technology (KAUST)en
kaust.authorAlkhalifah, Tariq Alien
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