PP-PS depth-domain AVA inversion

Maud Cavalca, Robin P. Fletcher

International Meeting for Applied Geoscience and Energy (IMAGE)

... of PS reflections. The larger the angles, the larger the shift. The amplitude variation with angle is also significantly impaired by illumination. Figure...

Abstract: Characterization of Red River Reservoirs from 3-D Seismic at Cold Turkey Creek Field, by M. A. Sippel; #90946 (1997).

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Abstract: Role of Simultaneous Inversion of Seismic Angle Stacks in Reservoir Characterization, by Samir Biswal; #90078 (2008)

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Abstract: Carbonate Reservoir Characterization Using the Cementation Factor: A Case Study of Little Cedar Creek Field, Onshore Alabama; #90311 (2017)

Qifei Huang, Yuefeng Sun

Search and Discovery.com

... on resistivity and sonic velocity, m is further applied to estimate shear wave velocity and predict the amplitude versus offset (AVO) responses of reservoirs...

Using New Techniques to Extract Stratigraphic Information from Seismic Data in Tight Gas Reservoirs

Heidy Correa, Fa Dwan, David Potter

Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)

... is not indicated in the seismic data. Forward models of the reservoirs in the area have shown AVO (Amplitude vs Offset) responses to be very similar in water and gas...

P-Wave Azimuthal Anisotropy and Its Application in Sandstone-Conglomeratic in Yani Oil Field

Zha Chaoyang, Shen Shuirong, Hairunnisa, Xia Tianfang

Indonesian Petroleum Association

... in seismic data. Second, far offset anisotropy analysis is more sensitive to fracture presences. Third, the short axis of amplitude ellipse represents...

Quantitative Seismic Geomorphology of Pliocene and Miocene Fluvial Systems in the Northern Gulf of Mexico, U.S.A.

Lesli J. Wood

Journal of Sedimentary Research (SEPM)

... and the independent variables of climate, sea-level change, and tectonics. Improved technology in deep seafloor imaging have encouraged recent work...

Time Lapse Feasibility Seismic Study of Gas Carbonates Reservoir in Tetra Field, Indonesia

Helmi Indrajaya, Boris Gurevich, Maxim Lebedev, Sigit Sukmono

Indonesian Petroleum Association

.... The amplitude in variation with angle curve model at Top Mantawa Member looks same in gradient value, but it is different in intercept or zero-offset...

Compressive sensing framework using the linear radon transform for 3D ultrasonic data reconstruction in a pinch-out reservoir model

Pedro C. de Assis, Romulo B. da Silva, Irineu A. Lima Neto, Alan C. Galante, Alexandre L. Campi, Alessandro R. de Oliveira, Roseane M. Missagia, Marco A. R. Ceia

International Meeting for Applied Geoscience and Energy (IMAGE)

... source-receiver offset and traces with low or zero amplitude due to problems with the receivers during the acquisition. There is the presence of mu...

3D Seismic Acquisition Design in a Volcanic Environment Using Simple 2D Dynamic and 3D Static Seismic Acquisition Method Analysis in the North West Java Basin

Adib Banuboro, Gilang Wiranda, Agung Adi Susanto, Alpius Dwi Guntara, Dwa Desa W, Firman Syaifuddin

Indonesian Petroleum Association

... to see the optimum offset to image subsurface in the volcanic environment. Based on the result of far offset variation (Figure 7) ,The best reflector...

AAPG Memoir 76, Chapter 18: Velocity Estimation for Pore-Pressure Prediction

David W. Bell

AAPG Special Volumes

... between velocity and pressure is difficult to establish for various reasons. One is that the true variation of velocity with depth is not as simple...

Chapter 4: Synthetic Seismograms and Their Uses

Tom Wittick

North Texas Geological Society

... the past several years we have become increasingly aware of the fact that the amplitude of a seismic reflector varies with source-receiver offset due...

Evaluating the impact from dual-azimuth, wide-azimuth towed streamer and ocean bottom node acquisitions for Brazil pre-salt exploration: A finite difference modeling study

Lei Zhuo, Jeff Bergeron, Jake Deeds, Robert Brandt, Dirk Erickson

International Meeting for Applied Geoscience and Energy (IMAGE)

..., 2017) resulted in less multiple contamination as well as better balanced amplitude and less migration noise in the pre-salt. Finally, we applied...

Abstract: Subsalt Development at Gemini, Deepwater Gulf of Mexico; The Role of Sequence Stratigraphy to "See" The Reservoirs, by Robert J. Spang, Michael E. Strickler, Stephen C. Henry, and Clive G. Sharman; #90914(2000)

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Abstract: Seismic Noise Removal Whilst Preserving the Amplitude Response, by Tony Rebec and Dimitri Bevc; #90076 (2008)

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ABSTRACT: Perfect Pitch … The Use of Tuning in Reservoir Characterization in the Harweel Cluster, Oman; #90051 (2006)

Richard R. Terres, Ra'id Z. AL-Jamali, Ali Naamani, Ahmed Helmi

Search and Discovery.com

... and multiples contributed to the original illusion of continuity. However, modeling and seismic attribute analysis showed that tuning between the reservoir...

Perfect Pitch – The Use of Tuning in Reservoir Characterization in the Harweel Cluster, Oman

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The Application of Full Azimuth 3D Seismic Fracture Detection Technology in the Prediction of Favorable Reservoirs within the Shengbei 5 Well Area Tight Sandstone Region; #41226 (2013)

Xiang Guo, Jianbin Ran, Xiaowei Yu, Zhengtao Hu, Zhang Yuan, Zhang Jinxue, and Fulei Li

Search and Discovery.com

... Ruger indicate that when P-waves propagate through a fractured medium, the variation in amplitude and velocity verses azimuth is a periodic function...

A Towed Streamer EM System Performance Case Study

Folke Engelmark, Allan McKay, Johan Mattsson

Indonesian Petroleum Association

... been conducted with systems where the source is towed at low speed close to the seafloor, and the receivers are autonomous recording stations emplaced...

Elastic Impedance Inversion for Reservoir Delineation … A Quantitative Interpretation Case Study in the Malay Basin (Geophysics Paper 11)

N. Cheng, I. Bukhari, I. Kanok, S. Awirut, C. Vitoon

Geological Society of Malaysia (GSM)

... Amplitude Variation with Angle (AVA) processing; band pass filtering to mitigate noise; trim static to align seismic events; and offset scaling to balance...

Resolving DAS versus geophone discrepancies using the DAS transform: A comparative study from the CaMI CCS field research station, Alberta

Ali Sayed, Robert R. Stewart, Marie Macquet, Don Lawton

International Meeting for Applied Geoscience and Energy (IMAGE)

...) DAS, and c) DAC, are plotted in depth along the image offset. The three images match reasonably well. However, the DAS image shows some loss of ampl...

Abstracts: Brine-methane Substitution: The Seismic Response of Coalbeds; #90173 (2015)

Diane J. Lespinasse and Robert J. Ferguson

Search and Discovery.com

... at around 990m can be associated with its base. In this case, there is no evidence of variation of the amplitude versus offset (AVO). In synthetic...

ABSTRACT: FALSE POSITIVE SEISMIC BRIGHT SPOTSŽ AND DISCRIMINATION BETWEEN GAS AND BRINE SATURATION, USING AVO ANALYSIS IN THE COLUMBUS BASIN, OFFSHORE TRINIDAD

Kathryn Young and Robert Tatham

Geological Society of Trinidad & Tobago

..., they are often characterized as “False Bright Spots”. This study investigates the use of Amplitude Variation with Offset (AVO) techniques to discriminate...

Seismic Detection of Gas in Cretaceous Sandstones and Fractured Sandstones

Walter E. Johnson, William T. Brown Jr., James B. Peterson

Rocky Mountain Association of Geologists

... amplitude variation with offset). Poisson’s ratio is a mechanical property that is sensitive to lithology and pore saturant. In a clastic depositional...

Chapter 16: The Jansz-Io Gas Field, Northwest Shelf Australia: A Giant Stratigraphic Trap

C. C. Jenkins, A. Duckett, B. A. Boyett, P. N. Glenton, A. A. Mills, M. C. Schapper, M. A. Williams, J. G. McPherson

AAPG Special Volumes

..., Carnarvon basin, Western Australia: APPEA Journal, v. 43, no. 1, p. 285–301. Rutherford, S., and R. Williams, 1989, Amplitude versus offset...