Influence of Lateral Shift on Normal Moveout of SH-Wave

2013 ◽  
Vol 838-841 ◽  
pp. 1530-1533
Author(s):  
An Ling Wang ◽  
Fu Ping Liu
Keyword(s):  
Reflection Coefficient ◽  
Data Processing ◽  
Error Correction ◽  
Seismic Data ◽  
Critical Angle ◽  
Large Error ◽  
Lateral Shift ◽  
Angle Of Incidence ◽  
Seismic Data Processing ◽  
Sh Wave

Using the lateral shift and shift time of reflection coefficient of SH seismic wave at the interface of strata, , we derived and given formulae of normal moveout of lateral shift, discussed the influence of lateral shift on normal moveout of SH-wave, and drawn the curves of normal moveout of lateral shift and the error of normal moveout caused by lateral shift with respect to the angle of incidence. The results show that for glancing wave or angle of incidence being near the critical angle, A large error can be caused by t lateral shift; The error correction of lateral shift should be done before seismic data processing.

Influence of Lateral Shift on Normal Moveout of SH-Wave

2014 ◽  
Vol 983 ◽  
pp. 408-411
Author(s):  
An Ling Wang ◽  
Fu Ping Liu
Keyword(s):  
Data Processing ◽  
Error Correction ◽  
Seismic Data ◽  
Critical Angle ◽  
Large Error ◽  
Lateral Shift ◽  
Angle Of Incidence ◽  
Refraction Coefficient ◽  
Seismic Data Processing ◽  
Sh Wave

Using the lateral ,shift and shift time of REFRACTION coefficient of SH seismic wave at the interface of strata, we derived and given formulae of normal move out of lateral shift, discussed the influence of lateral shift on normal move out of SH-wave, and drawn the curves of normal move out of lateral shift and the error of normal move out caused by lateral shift with respect to the angle of incidence. The results show that for glancing wave or angle of incidence being near the critical angle, A large error can be caused by lateral shift; The error correction of lateral shift should be done before seismic data processing.

Infuence of Latertal Shift on Normal Moveout of SV-Wave

2014 ◽  
Vol 488-489 ◽  
pp. 873-876
Author(s):  
An Ling Wang ◽  
Fu Ping Liu
Keyword(s):  
Time Delay ◽  
Phase Shift ◽  
Seismic Data ◽  
Critical Angle ◽  
Large Error ◽  
Lateral Shift ◽  
Angle Of Incidence ◽  
Seismic Data Processing ◽  
Group Time Delay ◽  
Group Time

Using the phase shift of reflection coefficient of SH seismic wave at the interface of strata, we derived the lateral shift and group time delay of total reflected SV-wave, given formulae of normal moveout of lateral shift, discussed the influence of lateral shift on normal moveout of SV-wave, and drawn the curves of normal moveout of lateral shift and the error of normal moveout caused by lateral shift with respect to the angle of incidence.The results show that for glancing wave or angle of incidence being near the critical angle, A large error can be caused by lateral shift; The error correction of lateral shift should be done before seismic data processing.

The Lateral Shift of Reflection Sh-Wave on an Interface of Two Media

2014 ◽  
Vol 488-489 ◽  
pp. 923-925 ◽  
Author(s):  
An Ling Wang ◽  
Fu Ping Liu
Keyword(s):  
Phase Shift ◽  
Reflection Coefficient ◽  
Seismic Wave ◽  
Critical Angle ◽  
Lateral Shift ◽  
Angle Of Incidence ◽  
Sh Wave ◽  
Order Of Magnitude

Using the phase shift of reflection coefficient of SH seismic wave at the interface of strata, we derived the lateral shift of total reflected SH-wave, drawn the curves of lateral shift. The results show that for glancing wave or angle of incidence being near the critical angle, the lateral shift are very large.angle of incidence the lateral shift is the same order of magnitude as the wavelength (period).

The Lateral Shift of SV-Wave on the Free Surface of Stratum

2013 ◽  
Vol 838-841 ◽  
pp. 1534-1537
Author(s):  
An Ling Wang ◽  
Fu Ping Liu
Keyword(s):  
Free Surface ◽  
Phase Shift ◽  
Reflection Coefficient ◽  
Seismic Wave ◽  
Critical Angle ◽  
Large Error ◽  
Lateral Shift ◽  
Angle Of Incidence ◽  
Reflected Wave ◽  
Order Of Magnitude

Using the phase shift of reflection coefficient of SV seismic wave at the free surface of stratum, we derived the lateral shift of total reflected SV seismic wave, given formulae of it, and drawn the curves of lateral shift, The results show that reflected wave of VS-wave exists negative shift; for glancing wave or angle of incidence being near the critical angle, a large error can be caused, In other angle of incidence the lateral shift is the same order of magnitude as the wavelength.

The Shift Time of Reflection Sh-Wave on an Interface of Two Media

2014 ◽  
Vol 488-489 ◽  
pp. 870-872
Author(s):  
An Ling Wang ◽  
Fu Ping Liu
Keyword(s):  
Phase Shift ◽  
Reflection Coefficient ◽  
Seismic Wave ◽  
Critical Angle ◽  
Angle Of Incidence ◽  
Sh Wave ◽  
Large Shift ◽  
Order Of Magnitude

Using the phase shift of reflection coefficient of SH seismic wave at the interface of strata, we derived the shift time of total reflected SH-wave, given formulae of shift time,The results show that for glancing wave or angle of incidence being near the critical angle, the shift time are very large. A large shift can be caused,In other angle of incidence the shift time is the same order of magnitude as the wavelength (period).

The Lateral Shift of Refraction Sh-Wave on an Interface of Two Media

2014 ◽  
Vol 551 ◽  
pp. 580-582 ◽  
Author(s):  
An Ling Wang ◽  
Fu Ping Liu
Keyword(s):  
Phase Shift ◽  
Seismic Wave ◽  
Critical Angle ◽  
Lateral Shift ◽  
Angle Of Incidence ◽  
Refraction Coefficient ◽  
Sh Wave ◽  
Order Of Magnitude

Using the phase shift of refraction coefficient of SH seismic wave at the interface of strata, we derived the lateral shift of total refraction SH-wave, drawn the curves of lateral shift. The results show that for glancing wave or angle of incidence being near the critical angle, the lateral shift are very large.angle of incidence the lateral shift is the same order of magnitude as the wavelength (period).

scholarly journals APPLICATION OF SEISMIC DATA PROCESSING FOR SEABED IMAGING

2011 ◽  
Vol 7 (1) ◽  
Author(s):  
Henry M. Manik ◽  
Susilo Hadi
Keyword(s):  
Reflection Coefficient ◽  
Data Processing ◽  
Seismic Data ◽  
Science And Technology ◽  
Sampling Point ◽  
Silty Clay ◽  
Marine Science ◽  
Seismic Data Processing ◽  
Geological Institute ◽  
Central Sulawesi

The research was conducted in April-May 2010 in North Maluku watersbelonging to the District Luwuk Banggai, Central Sulawesi Province. This area is located atcoordinates 2 ° S - 4 ° S and 123 ° E - 126 ° east. Data processing was done at OceanAcoustics Laboratory, Department of Marine Science and Technology, Bogor AgriculturalUniversity and Marine Geological Institute (MGI) in Bandung. Seismic data processingusing the data in SEG-Y format. The data was computed with Seisee software and bandpass filtering using Matlab. Based on the results of research, it is evident that increasing thefrequency band was followed by the higher the resolution. Sampling point 30 in the form ofsandy clay sediments has an impedance value of 2.49 and the value of reflection coefficientof 0.23. While the sampling point 31 in the form of silty clay in the study showed the valueof the impedance of 1,93 with the reflection coefficient of 0.11.

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