UK Continental Shelf: Raising the Bar for Regional 3D Seismic in the Central North Sea

Gregor Duval, Steve Hollingworth, Luke Twigger, CGG

GEO ExPro Magazine

... (TomoML) now allow complex PSDM projects to be completed within a significantly reduced timescale while at the same time improving image quality...

Vietnam: Improved Images of Fractured Basement

Jim Keggin, Wathik Alaaraji, Joe Zhou

GEO ExPro Magazine

... and mapped on conventional towed streamer 3D data, but the quality of the fracture image has always left uncertainty in the interpretation (Figure 3a...

Detection of Fluvial Reservoir Sands Using Rock Physics and Simultaneous Inversion: Case Study from the Gulf of Thailand

Mirza Naseer Ahmad, Philip Rowell

Indonesian Petroleum Association

... workflow was devised to image sand distribution more effectively in the area using well log and seismic data from the Pattani basin in the Gulf of Thailand...

A high-resolution seismic investigation for shallow iron ore

Ashley Grant*, Sasha Ziramov, Milovan Urosevic

Petroleum Exploration Society of Australia (PESA)

... investigation involving a 3D-3C, 3D-1C, 19 zero-offset ZVSP and a 3D SWD was undertaken in an effort to image a subsurface iron ore deposit. The same project...

Abstract: Curvelet Denoising: Application to Crustal Reflection Data; #90171 (2013)

Jounada Oueity, Vishal Kumar, Ron Clowes and Felix Herrmann

Search and Discovery.com

..., for higher dimension singularities, wavelets fail to give a parsimonious representation of an image. Figure 1: A few curvelets in both spatial (left...

Seismic Guided Drilling (SGD*): A New Technology for Look-Around and Look-Ahead of the Bit Prediction During Drilling

Nader C. Dutta, Sherman Yang, Jianchun Dai, Aranya Bhaduri, S. Chandrasekhar, Firoze Dotiwala, C.V. Rao

Indonesian Petroleum Association

... velocity, an essential ingredient for Migration to produce an Image, is based on the “flattening of seismic gathers” criterion. While this criterion...

2D Pre-Stack Depth Migration : Application to Inverted Grabens

C. Bunks, P. L. Pichon, L. Ben Brahim, Sekar Sakti

Indonesian Petroleum Association

... (S-G) frequency domain by alternate downward continuation in depth of geophone and source gathers. Iterative improvement of the velocity model...

ABSTRACT:MULTICOMPONENT OBC (4C) PRESTACK TIME IMAGING OVER PAMBERI, LRL BLOCK, OFFSHORE TRINIDAD

Tony Johns, Carmen Vito and Raul Sarmiento

Geological Society of Trinidad & Tobago

... was acquired over the Pamberi area in 2003, but failed to image or resolve adequately the target reflectors comprising the reservoir under the main growth...

Illuminating the Complex Geology of the UK Faroe Shetland Basin

Antonio Castiello, Gareth Venfield, Jens Beenfeldt

GEO ExPro Magazine

... and extrusive volcanics. As a result, high-end and robust velocity model building (VMB) is required to capture these variations and image them...

Tackling data challenges in land FWI: A case study

Victor Lopez, Yun Dong Guo, QingYang Li, Bin Yu, Changhua Zhang

International Meeting for Applied Geoscience and Energy (IMAGE)

... the improvements on the deeper image. To remedy this and update the deeper target areas, we employed (RFWI). This technique enabled us to obtain...

Seeing through the Salt

Jerry Kapoor, Nick Moldoveanu, Denes Vigh

GCAGS Transactions

... to image subsalt reservoirs and thus pinpoint the deepwater oil and gas deposits of tomorrow. Since 2005, several wide azimuth surveys have been acquired...

The Role of Regional Seismic Surveys in the Exploration of the North West Shelf

J. Ostby, C. Johnston

Petroleum Exploration Society of Australia (PESA)

... reflections. ¥_ INTRA BED J. Ostby & C. Johnston 213 Figure 3: Constant velocity gathers, constant velocity stack and coherency velocity analysis...

Different Approaches of Combining Geophone and Hydrophone Data From OBC Seismic at Bintuni-Berau Bay, Papua

Tepy Septyana, Yayat Supriatna, Supriyono, Greg Schurter, James Keggin, Jean-Jacques Chameau

Indonesian Petroleum Association

... and degrade geophone data. Separate noise attenuation on geophone and hydrophone prior to summation improves the final summation image (Shatilo et al., 2004...

Addressing the complex near-surface challenges in the Delaware basin through recent FWI advancements

Ali Mohamed, Dmitry Kulakov, Daniel Suren, Wilfrid Milan, Larry Holifield, Vasudhaven Sudhakar

International Meeting for Applied Geoscience and Energy (IMAGE)

... 1b). The objective was to process the two surveys together to provide a seamless subsurface image of the geologically complex area of the Delaware...

Resolving Seismic Attenuation Issue through Q-Migration, a Case Study in Sisi-Nubi Field, Indonesia

Bastian Hutahayan, Keat Huat Teng, Kelik Moersidin, Jacques Bonnafe, Natalia Anggriani, Cepi M. Adam

Indonesian Petroleum Association

... the survey area. As a result, the underneath seismic image quality might greatly decrease which creates limitation to properly evaluate the full...

Seismic Post-stack and Pre-stack Impedance Inversions in Depth, Examples From the Woodford Formation, Anadarko Basin

Marianne Rauch-Davies, Alex Lamb, Kara Rohan

Unconventional Resources Technology Conference (URTEC)

... The PSDM results have a higher res nel. M e solution and t image app the pears sharper. When performing a time-to-dep stretch, preg pth -stack attribute...

Imaging Beneath Gas - A Prestack Depth Migration Case Study (Paper 34)

Osman Khan, Uwe Klein-Helmkamp, Peter Whiting, Tim Chapman

Geological Society of Malaysia (GSM)

... in thickness and 4 sq. km in areal extent, producing considerable ray path distortion that severely impacts our ability to image the reservoir section...

Geophysical Study of a Magma Chamber Near Mussau Island, Papua New Guinea

S. V. Dadisman, M. S. Marlow

Circum Pacific Council Publications

... at a depth of about 4.4 s subbottom and can be traced laterally for 2.6 km. On shot gathers, the reflection demonstrates normal moveout appropriate...

Quantitative Interpretation in the Bedout Sub-basin: The value of seismic inversion in areas of sub-optimal seismic data quality

M. Kongawoin, A. Pauli, A. Locke, L. Hansen

Petroleum Exploration Society of Australia (PESA)

... employed to improve multiple attenuation, noise removal and residual moveout removal on gathers. Specific attention was applied to gather flattening...

Imaging Shallow Reservoirs through Innovation

Jane Whaley

GEO ExPro Magazine

... Comparison of stacks and four image gathers for conventional acquisition (top) and TopSeis (bottom), illustrating the considerably increased range...

Gas Hydrate Geohazard Assessment in the Northern Gulf of Mexico Using a Vertical Line Array, by Erika Géresi, N.R. Chapman, T.M. McGee, and J.R. Woolsey, Article #40159 (2005)

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)

... and used to produce an image of the subsurface under the geophone array. A single pilot trace is commonly recorded on the drill string and used to convert...

Designing Coal-Bed Methane Seismic Acquisition Survey Parameters Using Finite Difference Modeling

Abdul Haris, Befriko Murdianto, Adriansyah

Indonesian Petroleum Association

... surface heterogeneity. Figure 3 shows velocity and density model used in (7) the modeling and Figure 4 shows the simulated shot gathers with normal...

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)

... image) with a fixed reference trace from that section. 2) The convolution of the resulting data with the mean (or a random sample) of the autocorrelated...

Direction correction and energy normalization of vibrator for 3D9C seismic wave data

Zhiwen Deng, Rui Zhang, Xiusong Wang

International Meeting for Applied Geoscience and Energy (IMAGE)

..., et al. 2024). Conclusions Figure 4 Synthetic test of VDEN method: (a) Synthetic 9C shot gathers with SE1(90,110), SE2(90,210) and SE3(20,90); (b) 9C...