Elastic reverse-time migration without wavefield decomposition

Daiguang Li, Shengchang Chen

International Meeting for Applied Geoscience and Energy (IMAGE)

... can preserve the original scalar and vector information of original recording wavefield. That is, no extra polarity and amplitude corrections...

Implementation of cloud-ready technology designed to address longstanding data interoperability and accessibility issues through the use of a comprehensive semi-automated seismic interpretation workflow

Marion Barr, Stuart Walley, Vianney Savajol, Jie Deng, Christine Rhodes, Aurelien van Welden, Paul Endresen, Marius Storm-Olsen, Andy James

International Meeting for Applied Geoscience and Energy (IMAGE)

... by extracting a myriad of polarity-consistent micro horizons. To facilitate the autotracking of these elements using a cost-minimization function, the input...

Measurements Derived from Seismic Data as an Aid in Hydrocarbon Definition

R. E. Sheriff, M. T. Taner, F. P. Kronberger, L. R. Denham

Indonesian Petroleum Association

...: changes in amplitude: brightening or dimming; lowering of frequency; changes in waveshape, phasing or polarity reversal; lowering of velocity...

Seismic Detection of Overpressuring and Fracturing: An Example from the Qaidam Basin, People’s Republic of China

Robert J. Paul

Southeast Asia Petroleum Exploration Society (SEAPEX)

... be visible as asymmetrical peak on an SEG normal polarity section. Since a large velocity reduction is common in an overpressured zone, seismic...

Unravelling the Triassic Mungaroo Formation within North Carnarvon Basin Using Regional Stratal Slice Volumes

Tony Marsh, Bill Kowalik, Rhonda Welch, Anne Powell, Heidi Howe, Bill Hallager

Australian Petroleum Production & Exploration Association (APPEA) Journal

... encountered as the stratal slice departs from datum surface control. These displays also aided in evaluation of polarity reversal and AVO class identi...

Seismic Trace Inversion

Abilene Geological Society

... is identical, but of opposite polarity. Integrating Seismic Traces On the right of figure 5-1 is the integration of the seismic trace. Some...

Estimating the Thickness of Thin Beds

Abilene Geological Society

... it reaches 0 when the sand pinches out. Figure 2. Time-Amplitude Interpretation Chart for two spikes of equal amplitude and opposite polarity. The point...

Preliminary Account and Reconstruction of Indonesian Terranes

M. H. S. Hartono, S. Tjokrosapoetro

Indonesian Petroleum Association

... consumed by subduction. The polarity of the subduction changed after the collision, becoming southward. AADLAND, AJ. and PHOA, R.S.K., 1981, Geothermal...

Broadband Seismic Technology and Beyond: Part VII: CGGs BroadSeis „ A Change of Thinking

Lesse Amundsen, Martin Landrø

GEO ExPro Magazine

..., appearing as a fuzzy, polarity-reversed event after the reflector. Mirror migration treats the data as though they had been recorded at a mirror cable...

Section Five: Use of Gravity Methods on Diapiric Structures

New Orleans Geological Society

..., Figure 71). Negative anomaly width increases with depth to the source. The changes in polarity, width and amplitude of gravity anomalies with depth...

Methods for seismic Sweet Spot Identification, Characterization and Prediction in Shale Plays

Marita Gading, Lars Wensaas, Paul Collins

Unconventional Resources Technology Conference (URTEC)

... and amplitude versus offset (AVO) behavior demonstrates that on zero-phase data with normal polarity, the top of a source rock interval is characterized...

Characterization of Clastic Sediment: A Palynofacies Approach

Bob Yuris Chandra

Indonesian Petroleum Association

...-distal). • Determining depositional polarity (onshoreoffshore axes). • Determining hydrocarbon source rock potential and qualifying bulk rock...

Seismic Modelling to Support the Interpretation of Seismic Data, Northeast Jambi Block 'B', South Sumatra

J. A. Harwijanto

Indonesian Petroleum Association

... demonstrated (Fig. 10) that porosity variations can give rise to a complete polarity reversal and to large amplitude differences. On the other hand...

Drilling Using AvO to Reduce Uncertainties in D35 Infill

Meh Jabeen Zainuddin

Geological Society of Malaysia (GSM)

... Separation due to Hydrocarbon L Bearing M ithology Change Background Line Note: SEG polarity convention, soft events positive loop Figure 5. Separation...

Deep Earth: Leveraging neural networks for seismic exploration objectives

Tariq Alkhalifah, Claire Birnie, Randy Harsuko, Hanchen Wang, Oleg Ovcharenko

International Meeting for Applied Geoscience and Energy (IMAGE)

... polarity reversal for augementation allowing for far less samples to be used in the fine tuning compared to the pretraining. The fine-tuning took 900 epochs...

Granite Provinces in the Southeast Asian Tin Belt

P.E.J. Pitfield, E.J. Cobbing, D.I.J. Mallick, M.C.G. Clarke, L.H. Teoh

Circum Pacific Council Publications

... h e m i c a l polarity for t h e g r a n i t e s of all p r o v i n c e s h a s b e e n e s t a b l i s h e d , w h i c h is chiefly c h a r a c t e...

AVO Analysis of a Pennsylvanian Age Channel Sandstone in the Arkoma Basin, Oklahoma

Eric Kubera

Oklahoma City Geological Society

... of the sign of the intercept and the gradient. This attribute retains the magnitude of the gradient, but its polarity varies with the combined...

The Andean Santander-Oriental Tectonic Syntaxis: A first-order pattern controlling exploration play-model concepts In Colombia.

A.V. Nevistic, E.A. Rossello, C.E. Haring, G. Covellone, F. Bettini, H. Rodríguez, R. Salvay, C. Colo, L. Araque, E. Castro, C. Pinilla, C.P. Bordarampé

Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)

...) and western edge (Magdalena Basin) exhibits a fold and thrust belt with relevant wrenching expressed by enechelon multi-scalar structures. The polarity...

FRONTMATTER: Fifth Circum-Pacific Energy and Mineral Conference Transactions

Circum Pacific Council Publications

...owatt, R.L. Foland, C. Gibson, J. Dygas High resolution magnetic polarity stratigraphic study of the Miocene Monterey Formation of California—results...

A method of relative impedance holography-inversion based on reflection coefficient inversion

Jiangfeng Zheng, Jialin Sun, Zongyu Zhen, Shaoxuan Li

International Meeting for Applied Geoscience and Energy (IMAGE)

.../10.1190/1.3255603. Liu, C., J. Ming, K. Ma, and B. Li, 2013, Application of seismic data polarity discrimination and trace integration technology in Bozhong...

Utilizing Short Offset Data from a 3D Exploration Survey for Regional Seabed Morphology and Geohazard Mapping in Makassar Straits, Indonesia

Mazin Farouki, Francesco Paone, Andrea Marceglia, Francesca Felappi, Claudia Monti, Davide Della Moretta, Nikolay Nenov

Indonesian Petroleum Association

.... Data polarity is known and phase attributes add a valuable dimension in shallow gas and gas hydrate mapping. 3D AVO analysis can be very useful...

Paleozoic Miogeoclines and Suspect Terranes of the North Atlantic Region: Cordilleran Comparisons

Harold Williams

Circum Pacific Council Publications

... of the miogeocline and adjoining terranes. Subhorizontal structures are dominant with polarity at right angles to the terrane boundaries. T h u...

A New Look at the Tertiary Basins of the Intra-Carpathian Region

Gabor Tari

Houston Geological Society Bulletin

... by different amount and polarity of extension are separated by transfer faults (Tari et al., 1992). Seismic section "B" (Fig. 5) also illustrates...

Potential Unconventional Gas Resources in the Lord Howe Rise Region

Philip Symonds, Howard Stagg, Ingo Pecher, Neville Exon, Sabrina Van de Beuque, Irina Borissova, Jean-Marie Auzende

Petroleum Exploration Society of Australia (PESA)

... at the University of Texas Institute of Geophysics indicate that some of the BSRs have a positive polarity associated with a velocity increase...

Mitigation of the 3D Cross-Line Acquisition Footprint Using Separated Wavefield Imaging of Dual-Sensor Streamer Seismic Data … A First Example from Malaysia

Mazin Farouki, Andrew Long, Richard Jones, Yee Ah Chim, Magdalene Tang, Hui LeGleut, Shaoping Lu, Dan Whitmore, Adam Betteridge

Indonesian Petroleum Association

... that is reflected downwards from the free-surface of the ocean with opposite polarity (also referred to as the “receiver ghost” version). Conventional hydrophone-only...