Low-Frequency De-Ghosting Method to Enhance Basement Layer Continuity Image in Foxtrot South East Area, North West Java Sea

Ryan Bobby Andika, Hudzaifah, Deny Martian, Nurudin Mahmud, Sri Sadono

Indonesian Petroleum Association

... with the specific semi-fix flow in the figure 1. Based on the main goals of this research, we only focused on the De-Ghosting method using the Filter...

Broadband Data from Flat Streamers: Considerations for Acquisition and Processing

Phil Fontona, Edward Hager

Indonesian Petroleum Association

... signalto-noise at the ghost notch frequencies to allow the generation of stable and effective de-ghosting operators. Figure 6 shows an example of measured...

Broadband Seismic Technology and Beyond: Part XI: Which Technology to Choose?

Lasse Amundsen, Martin Landrø, Jan Erik Lie, Vidar Danielsen, Per Eivind Dhelie

GEO ExPro Magazine

... to a streamer towed at 8m depth. For more advanced use of seismic processing is de-ghosting. As described in data, as for example Full Waveform earlier...

ABSTRACT: Broadband Marine Seismic - Breaking the Limits; #90115 (2010)

Robert Soubaras, Peter Whiting, Bruce Ver West, and Roger Taylor

Search and Discovery.com

... streamer towing techniques, and a new de-ghosting and imaging technology. It uses receiver notch diversity to yield a broadband spectrum and takes full...

Abstract: Application of Adaptive De-Ghosting on the Conventionally Acquired Seismic Data Improves Inversion Results; #90319 (2018)

Mostafa Salheen, Ivica Mihaljevic, Mohamed Afia, Tarek Nafie, Tarek El-Melegy, Magdy Abdelaty, Raghad ElSayed, Maheswara Phani, Sushobhan Dutta

Search and Discovery.com

... notch problem which can be applied to conventionally acquired, flat streamer geometries. Adaptive de-ghosting (AD) performs de-ghosting and redatuming...

Demultiple for Wide-Tow Broadband Acquisition in a Shallow Water Environment: A Case Study from the NW Shelf, Australia

Mike Hartley, Shuo Ji, Alex Browne

Petroleum Exploration Society of Australia (PESA)

.... receiver de-ghosting has been applied. This step was performed using a state of the art 3-D de-ghosting technique that deghosts out-of-plane energy...

Exorcising the Ghosts … The New Streamer Technology Launched by PGS

Lasse Amundsen, Martin Landrø

GEO ExPro Magazine

.... It is the receiver ghost that attenuates the low-end frequencies for shallow towing and high-end frequencies for deep towing. Therefore, seismic de-ghosting has...

Broadband Seismic Technology and Beyond: Part II: Exorcizing Seismic Ghosts

Lasse Amundsen, Martin Landrø

GEO ExPro Magazine

... at particular frequencies. The notch frequencies depend on the respective depths of the source and receiver. For example, a depth of 6m produces a notch at 0...

Abstract: Broadband Marine Seismic … Breaking the Limits (Geophysics Paper 20)

Robert Soubaras, Carl Notfors

Geological Society of Malaysia (GSM)

..., and a new de-ghosting and imaging technology. It uses receiver notch diversity to yield a broadband spectrum and takes full advantage of the low noise...

Current and future multicomponent towed streamer design

Nicolas Goujon, Susanne Rentsch, Leendert Combee, Fabien Guizelin, Khairul Faizi Ahmad

Petroleum Exploration Society of Australia (PESA)

... it possible to design a notch filter with high attenuation for where it is required. The filters could be predefined or determined adaptively...

Marine Seismic Data Acquisition: Part 7. Geophysical Methods

James F. Desler

AAPG Special Volumes

... spaced L meters apart in the subsurface will be acquired if the streamer cables are spaced 2L apart. GHOSTING The air-water interface reflects...

Geostatistical Inversion on Broadband Seismic Data: A Case Study Offshore Malaysia

Francois Baillard, Murthy Jayanthi Venkata Satyanarayana, Rakesh Doshi, Kwong Wee Poh, Rajat Rathore, Siew Mun Tan, Loic Michel, Eric Andersen, Shivaji Maitra, Riccardo Vercesi, Lam Hoang Do

Indonesian Petroleum Association

... extension or also called de-ghosting process is known to significantly improve the characteristic of the seismic data by increasing the spectrum for lower...

Abstract: Deterministic Marine Deghosting: Tutorial and Recent Advances; #90224 (2015)

Mike J. Perz and Hassan Masoomzadeh

Search and Discovery.com

... of notches in the amplitude spectrum of the ghosting operator, with rapid variation in the phase spectrum occurring in the vicinity of these notches...

Danish Sector: Insight into Mature and Deeper Plays

Will Bradbury, Steve Drewell, Gulnara Hickman, TGS

GEO ExPro Magazine

... enhancement of low frequencies towards the first notch at 0Hz significantly improved the imaging of the Permo-Carboniferous section. Due to the shallow...

Deterministic and Statistical Wavelet Processing

Lee Lu

Southeast Asia Petroleum Exploration Society (SEAPEX)

... wavelet processing, the wavelet is given, we can then design a shaping filter to shape the wavelet to a desired output to improve the resolution of data...

IV. The Role of Seismic Wavelets and Wavelet Processing

Norman S. Neidell

AAPG Special Volumes

... reflection or ghosting effects so that the waveform should match the far field one which propagates in the subsurface. Wavelet processing with the waveform...

Enhance Seismic Quality With A Fast, Robust and Economic Solution Using Broadband Technology

Munji Syarif, Vania Iqsora, Adde Avrino, Agus Abdullah

Indonesian Petroleum Association

... objective reservoirs. This method is considered fast, robust and economical. The procedure would be enhancing the spectrum by designing a unique filter...

Abstract: Undershooting Using the Vertical Hydrophone Array, by N. Moldeveanu and M. Chang; #90981 (1994).

Search and Discovery.com

Stratigraphic Modeling and Interpretation--Geophysical Principles and Techniques: Section 3. Stratigraphic Models from Seismic Data

Norman S. Neidell, Elio Poggiagliolmi

AAPG Special Volumes

... form approximating a desired form by Wiener filtering. The Wiener filter operation is a well-known signal-processing method which has been used...

A New Seismic Method to Significantly Improve Deeper Data Character and Interpretability

Andrew Long, Guillaume Cambois, Gregg Parkes, Anders Mattsson, Terje Lundsten, Mazin Farouki

Indonesian Petroleum Association

... as ghosting actually occurs twice: On the source side and on the receiver side. Ghost attenuation or elimination to increase the signal bandwidth has...

Broadband Seismic Technology and Beyond: Part VI: Towards a Ghost-Free Solution

Lasse Amundsen, Martin Landrø, Eivind Frømyr

GEO ExPro Magazine

... energy is best preserved at shallow depths. Below the frequency of the source-ghost notch, the source spectrum can be shaped to optimise low...

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

Natasha Hendrick, Andrew Long, Rune Tenghamn

Indonesian Petroleum Association

... into the frequency spectrum of the seismic data (Figure 1(a)). In order to work around the receiver-ghost notch, conventional streamer surveys are either conducted...

ABSTRACT: Exploration Outside of the Mute Zone; the Geophysics of a Billion Barrel Discovery in the Mature North Sea, by Lie, Jan E.; Danielsen, Vidar; #90142 (2012)

Search and Discovery.com

Kutei Basin: Feasibility Study of a Broadband Acquisition

Gilbert Del Molino, Fabri Ikhlas Gumulya, Dedy Sulistiyo Purnomo, Paolo Battini, Bonita Nurdiana Ersan, Francesca Brega, Ferdinando Rizzo, Giorgio Cavanna, Buia Michele

Indonesian Petroleum Association

... the “natural earth high filter”. Starting from a standard ghosted marine source, generation of several Q filtered (at target level) wavelets with and without...

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)

... in imaging process. Another observation is that the bubble notch of TPS, around 5 Hz, is much steeper (~ 15-20 dB) than that of the airgun array, which...