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Complex-salt model building using combination of interactive beam migration and localized RTM

21 October 2009
A new salt velocity model building methodology is proposed which allows effective testing of different salt interpretation scenarios. In this methodology,.
SEG

Use of narrow azimuth data for enhanced Wavefield Extrapolation multiple prediction on a WAZ survey

18 October 2009
There has been a continually expanding interest in wide azimuth (WAZ) data in all its variations. We are now challenged to take full advantage of the.
SEG

An Integrated Approach to Hydrocarbon Prospectivity in the South Western Barents Sea

18 October 2009
Large areas of the south western Barents Sea remain unexplored. An integrated approach to the understanding of the south western Barents Sea is presented.

Salt interpretation validated by salt tectonic study in the offshore Gulf of Mexico

17 October 2009
To identify and define a complex salt body with rugose top and base is essential in building an accurate velocity model for premium quality depth imaging..
SEG

Geological Structure of South-Western Laptev Sea Region

16 October 2009
Russian Eastern Arctic shelf, including Laptev Sea, represents one of the most promising offshore areas for hydrocarbon discoveries. Nevertheless, due to.

Wave-equation based residual multiple prediction and elimination in migration depth domain as an aid to seismic interpretation

15 October 2009
We have developed a new methodology for predicting and removing multiples in the migration depth domain based on wavefield extrapolation and attribute.
SEG

Arctic Magmatism: Distribution, Age and Implications for Basin Development and Petroleum Systems in the Barents Sea

14 October 2009
The sedimentary basin development of the Barents Sea has been influenced by the formation of three Large Igneous Provinces (LIPS): The end-Permian (ca..

Source separation of simultaneous source OBC data

13 October 2009
To attain the benefits of simultaneous shooting in marine data acquisition, either the simultaneous sources have to be placed far apart to minimize the.
SEG

Structure and Development of the Conjugate mid-Norway - NE Greenland Margins

13 October 2009
The continental margins off mid-Norway and NE Greenland share a common geological history leading up to breakup in earliest Eocene. The geology offshore.

Constrained propeller ship noise removal and its application to OBC data

11 October 2009
A constrained propeller ship noise removal technique for OBC data has been developed. The constraints include the ship lane information, global linear.
SEG

Reverse-time migration by fan filtering plus wavefield decomposition

10 October 2009
The conventional zero-lag crosscorrealtion imaging condition of reverse-time migration is subject to strong migration artifacts. This paper studies.
SEG

Sedimentary Evolution of Paleozoic and Triassic Sequences of Wrangel Island

09 October 2009
Wrangel Island is located between East Siberian and Chukchi Seas and composed of metamorphic Wrangelian Complex and overlying Silurian, Devonian,.

The Geological Structure and Hydrocarbon Potential of East Barents Sea Region: from Overview and Comparison to the Norwegian Barents

08 October 2009
Here we present the synthesis of available/published geological and geophysical data on Barents Sea region, including TGS/NGP seismic data (2005) and.

Sedimentary Basins of East Siberian and Chukchi Sea Shelf: the Structure and Hydrocarbon Potential

07 October 2009
East Siberian and Chukchi Seas occupy vast area of Russian Eastern Arctic shelf, where very limited amount of seismic data is available and no offshore.

From SRME or wave-equation extrapolation to SRME and wave-equation extrapolation

06 October 2009
Better de-multiple results are achieved by combining the strengths of SRME and wave field extrapolation techniques. In this paper, we illustrated three.
SEG

Freedom Wide-Azimuth Processing and Imaging, a case history study of WAZ imaging in Mississippi Canyon, Gulf of Mexico

05 October 2009
Wide-azimuth (WAZ) data is the most significant advance to have occurred in seismic acquisition and processing since the introduction of 3D seismic in the.
SEG

Main Stages of the Tectonic Evolution of the Chukotka Peninsula and Adjacent Shelf

04 October 2009
Metamorphic rocks of the Chukotka complex are exposed in the east Chukotka uplift and granitic-metamorphic domes (Koolen, Senyavin, Alyarmaut and etc.)..

Improved Imaging through Anisotropic Depth Migration and High-Resolution Shallow Tomography In Lieu Of Refraction Statics in South Timbalier Trench Area

03 October 2009
We present a case study of an anisotropic prestack depth migration (APSDM) project which used high-resolution, shallow tomography and anisotropic model.
SEG

TTI/VTI anisotropy estimation by focusing analysis, Part II: application

02 October 2009
The workflow for the practical application of the automated focusing analysis in time domain is demonstrated by deriving the TTI anisotropy parameters,.
SEG

Significant improvements in subsalt imaging

01 October 2009
Keeping up with the latest wide-azimuth processing methods will be a popular topic at the SEG this year. TGS-NOPEC Geophysical Co. (TGS) plans to.

TTI/VTI anisotropy parameters estimation by focusing analysis, Part I: theory

01 October 2009
Time domain and depth domain focusing operators are introduced to estimate anisotropic parameters. The fully automated time domain focusing operator to.
SEG

Salt interpretation for depth imaging – where geology is working in the geophysical world

01 October 2009
Accurate salt interpretation involves an integration of geology and geophysics. In the practice of salt interpretation and model building in depth.
SEG