A case study of broadband processing in extremely shallow water environment of Bohai Bay

Jiangbo Huang, Xinyi Duan, Dekui Xu, Pingping Zhang

International Meeting for Applied Geoscience and Energy (IMAGE)

.... For shallow water multiple suppression, conventional apparent velocity filtering methods cannot efficiently suppress shallow water multiples because...

Abstract: Application of a Tomographic Velocity Model to the Prestack Depth Migration of a Buried Valley; #90172 (2014)

Oluwafemi Ogunsuyi, Douglas R. Schmitt

Search and Discovery.com

... data is transformed from normal xt into apparent velocity versus two-way-time (radial or r-t) domain (Henley, 1999). After transformation to r-t domain...

THE EARTH'S CRUST UNDER THE WILLISTON BASIN IN EASTERN SASKATCHEWAN AND WESTERN MANITOBA

Z. HAJNAL, C. M. R. FOWLER

Williston Basin Symposium

...., and R. P. Meyer, 1964, A correlation method of apparent velocity measurements, 1964: Jour. Geophys. Res., v. 63, p. 691-699...

The 'Geoseis' System: Seismic Prospecting with Detonating Cord - A Line Energy Source

D. W. Thompson

Petroleum Exploration Society of Australia (PESA)

... spread. Apparent horizontal velocity Va is the horizontal velocity of events arriving at the surface where Va is given by v .. b. Split Spread Shooting...

Investigation of DMO Algorithms during Test-Line Processing: Some Recommendations

Ng Tong San, Mohd. Hashim Abas, Leong Lap Sau

Geological Society of Malaysia (GSM)

... not be used solely for suppressing high velocity linear noise and lessening back scattered energy. Other filtering options are available. INTRODUCTION...

Abstract: Velocity Modeling and Static Corrections for Complex near-Surface - from Alternative Solutions to Improve Seismic Imaging in Muglad Basin, by Hussein A. Ahmed; #90105 (2010)

Search and Discovery.com

Subsurface seismic imaging using drill bit noise

Mehdi Asgharzadeh, Ashley Grant, Andrej Bona, Milovan Urosevic

Petroleum Exploration Society of Australia (PESA)

... in the survey, we decided to remove the linear noise with apparent velocity under 1500 m/s and frequency under 110 Hz. This was implemented by applying the FK...

ABSTRACT: Attenuating Seismic Interference Noise Using a Dual Sensor Streamer, by Caselitz, Bertrand; Monir, Emad; Halim, Abdallah; #90141 (2012)

Search and Discovery.com

Crustal Structure of South Florida Bank Derived from Ocean Bottom Seismometer Refraction Profiles: ABSTRACT

Joseph O. Ebeniro, William P. O'Brien, Jr., Subir K. Chatterjee

AAPG Bulletin

... County arch. In the South Florida bank area, the deepest refractor observed has an apparent velocity of about 7.5 km/sec (4.6 mi/sec) at a depth...

Abstract: Wavepath Imaging for Passive Data; #91204 (2023)

Yicheng Zhou, Sherif Hanafy

Search and Discovery.com

... the apparent velocity values, hence finding the direction of raypath shooting. The seismic energy is then smeared only along that raypath and covers...

The Seismic Exploration of the Mahakam Delta, or "Nine Years Shooting in Rivers, Swamps and Very Shallow Offshore"

Guy Roux

Indonesian Petroleum Association

...", the nature of which is not clearly understood: Plate 8. Walkaway Noise Spread. Apparent velocity: 120 to 140 meters/second. Frequency : 3 to 5 hertz...

The Use of Production Logging Surveys to Determine the Injection Profile at the Kenali Asam Waterflood Pilot Project

Victory S. Kirana

Indonesian Petroleum Association

... at approximately 4 ft/min. Apparent Velocity A technique that is most commonly accepted for determining flowmeter velocities is to perform a downhole...

Microtremor Studies in Roosevelt and Beowawe Geothermal Areas

Alfred L. Liaw, Wayne Suyenega

Circum Pacific Council Publications

... by such a n array laid over a noisy reservoir system should be seismic body waves with extremely high apparent velocity caused by small incident angle. O n...

Abstract: Azimuthal Anisotropic NMO Analysis for Amplitude Stripping Removal in Sumandak 3D Reprocessing (Geophysics Paper 15)

Mazlan Ghazali, Edgardo Padron, Mehmet Ferruh

Geological Society of Malaysia (GSM)

..., Azimuthal anisotropic is referred to the apparent velocity dependence upon the azimuth of the shot and receiver geometry (Figure 3). The study area...

Abstract: Correcting PS Receiver Statics using Hybrid Raypath Interferometry; #90172 (2014)

David C. Henley

Search and Discovery.com

... gather is matched to the PS commonangle gather with the same apparent velocity, and the PS common-angle gathers are shifted up in time to approximately...

Abstract: Role of Long Period Long Duration Seismic Events in Hydraulic Stimulation of the Barnett Shale; #90000 (2016)

Indrajit Das

Search and Discovery.com

... are coming from by a) estimating the backazimuth from the apparent velocity of arrival and b) stacking of the amplitude after correcting for arrival...

Abstracts: Noise Examples from Two Microseismic Datasets; #90173 (2015)

Andy St-Onge and David Eaton

Search and Discovery.com

.... A straight line through the first arrivals of the energy gives an apparent velocity of 1460 m/sec. By analogy with other studies (eg. Le et al, 1994...

Some Results of Experimental Work on Increasing the Depth of Investigation of Seismic Reflection Surveying in the West Kuban Downwarp

Ye. A. Kozlov

Petroleum Geology: A Digest of Russian Literature

... of 2000 m per sec parallel to the surface of the Earth. They may arrive at a line of seismographs at any angle; therefore, their apparent velocity...

First-Arrival Traveltime Inversion in the CMP Domain: Method and Application

Search and Discovery.com

..., and Zhu et al., 2000) which derives the near-surface velocity model based on traveltime reconstruction. The other approach is to map apparent velocities...

Vertical Seismic Profiling--A Measurement that Transfers Geology to Geophysics: Chapter 2

B. A. Hardage

AAPG Special Volumes

... opposite apparent velocities, so that the downgoing and upgoing wavefields can be separated by velocity filtering. This wavefield separation allows...

Abstract: Lamb Waves Recorded in Microseismic Monitoring Wellbores; #90174 (2014)

Andy St-Onge

Search and Discovery.com

... events were identified by their occurrence rate, apparent velocity and frequency content. Lamb waves have been identified on both datasets. They have...

An Interpreter's Guide to Improvements in Depth Imaging Through Model-Based Velocity Estimation and Refinement

Andy Furniss

Indonesian Petroleum Association

... from coherency inversion: Geophysics, 56(9), 1377-1383 Levin, F. K., 1971, Apparent velocity from dipping interface reflections: Geophysics, 36...

Abstract: Array Analysis of Surface Microseismic Data from the Rolla Microseismic Experiment; #90174 (2014)

Katarina Seckarova and David W. Eaton

Search and Discovery.com

... which 30 events were analyzed to determine backazimuth and apparent velocity. This was accomplished by using a velocity analysis procedures similar...

Wave-Front Diagrams in Seismic Interpretation

H. R. Thornburgh

AAPG Bulletin

... velocity of the surface formation. K and L are two points on the first underlayer line. An apparent velocity determined from these points is quite different...

Chapter 3: Crystalline Basement: The Foundations of Western Canada Sedimentary Basin

G. Ross, R. A. Stephenson

CSPG Special Publications

..., R.P., 1964. A correlation method of apparent velocity measurement. Journal of Geophysical Research, v. 69, p. 691–699. Milani, E.J., Davison, I...