Physics-based preconditioned multidimensional deconvolution in the time domain

David Vargas, Ivan Vasconcelos, Matteo Ravasi, Nick Luiken

International Meeting for Applied Geoscience and Energy (IMAGE)

... domain MDD Figure 5: t-MDD reconstructed impulse responses Gp using physical priors. (a) Numerically-modeled reflectivity. (b) The causalityand (c...

Enhancing Resolution and Improving Imaging: The New Dual-Sensor Seismic Streamer

Natasha Hendrick, Andrew Long, Rune Tenghamn

Indonesian Petroleum Association

...-processing of the dual-sensor data to recover the de-ghosted pressure wavefield is relatively straightforward. First, the impulse response of the velocity...

Technique and Methods of Geophysical Exploration in Canada

A. I. Bogdanov

Petroleum Geology: A Digest of Russian Literature

... of the section by an ultrasonic sonde with an impulse output and with photographic recording with an in-hole instrument. The accuracy of time recording reaches...

Imaging two-dimensional transition zone seismic data in geologically complex areas using a highly heterogeneous data acquisition configuration

Hussain I. Hammad, Valmore Celis Franco

International Meeting for Applied Geoscience and Energy (IMAGE)

... of sources: seismic vibrators, impulse sources, and three differently-sized airguns (see Musser et al. 2012). In addition to the acquisition complexity...

9C data acquisition for near-surface imaging in a quick-clay landslide-prone site in SW Sweden

Tatiana Pertuz, Alireza Malehmir

International Meeting for Applied Geoscience and Energy (IMAGE)

...: Norwegian Geotechnical Institute 135. Han, L., P. Wang, and T. Yu, 2022, Wave types and energy conversion of impulse waves generated by landslides...

How Can We Reduce the Environmental Impact of Marine Seismic Surveys?

Andrew Long, Mickael Bastard, Endrias Asgedom, Jens Fredrik Wisløff, Magnus Christiansen

Australian Petroleum Production & Exploration Association (APPEA) Journal

... as a short acoustic impulse. This is relatively free of the coda of oscillatory bubble energy that dominates the emitted pressure wavefield from...

Ukraines Gas-Fuelled Crisis

Nikki Jones, Will Thornton

GEO ExPro Magazine

..., although energy dependency has also helped dampen any East or West impulse for escalation. Just as Ukraine and Europe are reliant on Russian gas...

Table of Contents: 33rd Annual Convention Proceedings, 2009

Indonesian Petroleum Association

..., Reki Indrawan, Redo Waworuntu IPA09-G-149 The Effect of Resistivity Anisotropy on Earth Impulse Responses Folke Engelmark, Bruce Hobbs, Dieter...

Least-squares reverse-time migration with angle gathers through point spread functions

Jianyong Bai, Orhan Yilmaz

International Meeting for Applied Geoscience and Energy (IMAGE)

... to create the PSFs, which are the impulse responses of an angle/azimuth-dependent reflectivity model with constant amplitudes (= 1) at each scatterer...

The Application of Image Processing Techniques for Complex Structures

V. Sudhakar, I. T. McMahon

Indonesian Petroleum Association

... an impulse response which is semi-elliptical out to the maximum dip of reflection energy, but it is a much smaller effect than the migration shift...

Memorial: Alexander Deussen (1882-1959)

Wallace E. Pratt

AAPG Non-Technical and Memorials

... studies. T h e wealth of detail; the patient, accurate observation; the sure deduction; the restraint of all impulse toward speculation; all...

INDULGE ME FOR A MOMENT: THE JOY AND PRIVILEGE OF EDITING PALAIOS

THOMAS D. OLSZEWSKI

PALAIOS

... community to disseminate their research and ideas. An even more recent development than open-access publishing, also driven by the impulse that science...

Extrapolation of Reservoir Lithology Away from Wells Using Seismic-Geologic Controls

Ruben D. Martinez, Geoffrey Mansfield

Indonesian Petroleum Association

... is non integer, and can be as precise as desired. On the other hand, an impulse response model assumes time delays are integer multiples of the sampling...

PP-PS depth-domain AVA inversion

Maud Cavalca, Robin P. Fletcher

International Meeting for Applied Geoscience and Energy (IMAGE)

... be approximated, for a given acquisition system and velocity model, through calculating its (localized) impulse responses to a set of point diffractors, also...

Broadband data with a new low frequency source Acquisition and processing example from the Gulf-of-Mexico

Xuefeng Shang, Maksym Kryvohuz, Hamish Macintyre, Guido Baeten, Thibaut Allemand, Philippe Herrmann, Stephane Laroche, Shuki Ronen

International Meeting for Applied Geoscience and Energy (IMAGE)

... output more closely resembles an impulse. Therefore, the impact of vessel (horizontal) movement on NFH recordings is larger in the TPS acquisition. High...

Impact of Seismic Attenuation on Downhole Microseismic Moment Tensor Inversion

Donghong Pei, Natalia Verkhovtseva, Jon Doucette, Price Stark

Unconventional Resources Technology Conference (URTEC)

... the frequency band of interest. Given a frequency f and the corresponding attenuation quality factor Q, an impulse response of the attenuation...

Automatic well-log baseline correction via deep learning for rapid screening of potential CO2 storage sites

Misael M. Morales, Carlos Torres-Verdín, Michael Pyrcz, Murray Christie, Vladimir Rabinovich

International Meeting for Applied Geoscience and Energy (IMAGE)

... and 𝑈 is the unit step function. The symmetric infinite impulse response (IIR) filter is written as 𝑐 (6) 𝓘𝑿= , (1 − 𝑧⁄ 𝑥)(1 − 𝑧𝑥) where...

Subsurface seismic imaging using drill bit noise

Mehdi Asgharzadeh, Ashley Grant, Andrej Bona, Milovan Urosevic

Petroleum Exploration Society of Australia (PESA)

... will produce a short equivalent impulse response that is needed for imaging using interferometry methods or IVSP migration. The pilot trace will also be used...

Vibration Induced Fatigue; Threats and Mitigation

Helge Lawrenz

Indonesian Petroleum Association

..., and the form is either broadband or harmonic. Broadband excitation simultaneously excites a wide frequency range. It can be a single impulse...

Finite-difference wavefield propagation using superstepping

T. Nemeth, K. Nihei, A. Loddoch, A. Sekar, K. Bube, J. Washbourne, L. Decker, S Kaplan, Ch. Wu, A. Shabelansky, O. Cristea, Z. Yin

International Meeting for Applied Geoscience and Energy (IMAGE)

.... These precomputed Green’s functions become impulse response filters at these locations. Then we apply these filters with the actual wavefields to advance...

Well Productivity Analysis of the Bakken Shale Play

Emilian R. Vankov, Svetlana Ikonnikova, Gurcan Gulen, Kenneth Medlock

Unconventional Resources Technology Conference (URTEC)

... is prohibited. Extended Abstract and Introduction Advanced hydraulic fracturing technologies and increasing oil prices gave an impulse to shale oil resources...

Central Kalimantan Weight Drop Seismic Acquisition and Implication to Petroleum Exploration

Riki Tasrianto

Indonesian Petroleum Association

... weight which is dropped to the ground to produce the sound wave. The weight is dropped so that the response is close to an impulse response. In terms...

Statistical imaging through strongly scattering near-surface with path summation techniques

Andrey Bakulin, Ilya Silvestrov, Maxim Protasov, Dmitry Neklyudov

International Meeting for Applied Geoscience and Energy (IMAGE)

... calculated based on the true model described in (a). The ideal image is derived by convolving the model's reflectivity with the source impulse, as depicted...

Full azimuth angle domain Q prestack depth migration imaging technology: A case study of tight gas in western China

Huahui Zeng, Qin Su, Huijie Meng, Shengtao Zang, Deying Wang, Shuhai Qie

International Meeting for Applied Geoscience and Energy (IMAGE)

... 1 Local Angle domain diagram of imaging point M In the three-dimensional case, the ray tracing results in a diffraction surface, and the impulse...

R&D into Time-Lapse 3-D Seismic with Analogue Sandbox Models

Don Sherlock

Petroleum Exploration Society of Australia (PESA)

... data sets, which involves convolving the raw data w ith an impulse response function, or matching fi lter. This function can be computed on either...