Characteristics of Microzonation Modelling in Reservoir Evaluation

Search and Discovery.com

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

Abdul Haris, Befriko Murdianto, Adriansyah

Indonesian Petroleum Association

... velocity (top) and density (bottom) model used in the modeling. Coal A, B and C is annotated. Figure 4 - Simulated shot gathers with nmo correction...

Sequence Stratigraphic Correlation of Well-Log Cross Sections

James W. Mulholland

Rocky Mountain Association of Geologists

.... Datum the logs on a time marker (preferably the condensed section, commonly recorded as a gamma-ray "hot" streak), low in the marine shale section just...

Post Migration Processing of Seismic Data

Dashuki Mohd.

Geological Society of Malaysia (GSM)

... and deconvolution, • definition of survey geometry, • normal moveout (NMO) and stacking, • migration, and • filtering and scaling. In geologically...

Extended Abstract: Exploring the Missing Blind Zone in the Gulf of Mexico Shelf

Selim Simon Shaker, Dave Reynolds, Walter W. Wornardt

GCAGS Transactions

... cross over, and reflectivity becomes very weak and occasionally cannot be recognized on the seismic stacking velocity (prestack time migration) lines...

Shale Gas OVT Seismic Data Prestack Trace-Gather Optimization Technique

Yusheng Zhang, Gang Yu, Xing Liang, Benjing Liu, Guangming Hu

Unconventional Resources Technology Conference (URTEC)

... inequality and frequency difference with the offset varying, non-flat reflection events caused by incorrect velocity, anisotropic and statistical error...

Tides and their seminal impact on the geology, geography, history, and socio-economics of the Bay of Fundy, eastern Canada

Con Desplanque, David J. Mossman

Atlantic Geology

... Hemisphere) undergoes an apparent deflection. This is because it has an angular rotational velocity (measured in degrees or radians/unit time) exceeding...

Inverse 4D seismic timeshifts: How much do our reservoirs rebound?

Jan Stammeijer, Duane Mikulencak, Chen Bao

International Meeting for Applied Geoscience and Energy (IMAGE)

... to indicate a later seismic arrival time of the Top Reservoir event on a Monitor survey. Such a signal combines the effects of stretch and velocity reduction...

3D large residual static corrections based on first breaks in CMP gather

Feng Faquan, Deng Zhiwen, Cai Xiwei, Hu Chaojun, Huang Yuanyi, Zou Xuefeng, Du Zhongdong, Wang Haili, Wang Mingliang

International Meeting for Applied Geoscience and Energy (IMAGE)

.... First, apply datum statics to the picked first breaks, and then fit the picked first breaks to calculate the residual trace time shifts in CMP gather...

Application of full-waveform inversion to ultra-high-density OBN data at Clair field

Simon Luo, Xukai Shen, Philip Tillotson, Lindsey Smith, Dan Davies

International Meeting for Applied Geoscience and Energy (IMAGE)

... refining the geometries and adding resolution to the high-velocity features deeper in the section. Next, we computed high-frequency reverse time...

Abstract: Enhancing the Signal-To-Noise Ratio of Sonic Waveforms by Interferometric Stacking; #90255 (2017)

Ali Aldawood, Ibrahim Hoteit, Abdulrahman Alshuhail, Abdullatif Al-Shuhail

Search and Discovery.com

... the waveforms act as natural wavefield extrapolators. We also propose a modified super-virtual interferometric stacking to mitigate the effect...

4-D Seismic: A Powerful New Technology for Monitoring Steam Movements in Duri Field-Central Sumatra

S. D. Jenkins, M. F. Bee, J. H. Lyle, E. Murhantoro

Indonesian Petroleum Association

... time picks it is possible to estimate velocity changes and infer some reservoir properties. More sophisticated inversion techniques that use prestack ray...

Case Study - Advanced Seismic Acquisitions and Processing Results in Indonesia

Michele Buia, Bakhrudin Mansyur, Herastya Iman Priyonggo

Indonesian Petroleum Association

... of the circles. The criteria used for the choice of the best circular options were based on the most diverse azimuthal stacking fold and on the most...

Sedimentologic and Physical Oceanographic Evidence of a Shelf Edge Counter Current Off Guinea Bissau, Guinea and Sierra Leone

David W. McGrail

Journal of Sedimentary Research (SEPM)

... nondimensionalizing equation (1). This is accomplished by representing the length, time and relative velocity characteristic of a particular motion by L, -1 and U...

High-resolution seismic detection of shallow natural gas beneath Hutchinson, Kansas

Susan E. Nissen, W. Lynn Watney, Jianghai Xia

Environmental Geosciences (DEG)

... noise prior to vertical stacking. A split-spread geometry was used in data acquisition to provide reasonable velocity control for deeper reflecting...

Baram Field „ The 3D Marine Re-Processing Challenge

Jörg J. Wicker, Jonathan E. F. Stearn

Geological Society of Malaysia (GSM)

... the interval velocity map derived from the seismic stacking velocities for a theoretical layer from sea"bed to a constant time horizon at 950 ms, red...

Overview of Exploration Geophysics: Recent Breakthroughs and Challenging New Problems: Hydrocarbons

B. S. Flowers

AAPG Special Volumes

..., but accurate velocity measurements that will give proper depth conversions are not possible. The ordinary time-migration section produced with migration-before...

Overview of Exploration Geophysics--Recent Breakthroughs and Challenging New Problems

B. S. Flowers

AAPG Bulletin

... after stacking, and (3) the direct detection of hydrocarbons. Domenico, S. N., in press, Effect of water saturation on seismic reflectivity of sand...

Enhance near-surface velocity tomogram using land-streamer data

Sherif M. Hanafy

International Meeting for Applied Geoscience and Energy (IMAGE)

...-surface velocity models. Land-streamer can, also, covers very large areas in shorter time relative to conventional technique. The data quality...

Seismic to Well Ties with Problematic Sonic Logs, by Don Burch, #40078 (2003)

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1-D Stratigraphic Analysis

Charles Kerans, Scott W. Tinker

Special Publications of SEPM

... and surfaces of missing time should be expected in an icehouse setting, and more systematic stacking of lithofacies in a greenhouse setting. The "Ideal...

Chapter 4: Synthetic Seismograms and Their Uses

Tom Wittick

North Texas Geological Society

... the known distance between the receivers gives a measure of transit time of sound in the formation, which is the reciprocal of velocity. By putting...

Synthetic Seismograms and Their Uses

Abilene Geological Society

... of a pulse from the transmitter, but instead triggers on the second cycle then the travel time measured will be abnormally long and the velocity will be slow...

AVO and Inversion Contribute to Makassar Exploration Efforts

William L. Soroka, Herry Andiarbowo, Anung Widodo

Indonesian Petroleum Association

... more work, cost and time in the form of sophisticated analyses that need to be performed. Exploration costs continue to rise due to many factors both...

Abstract: Seismic Detection of Cracks in Carbonates Associated with Potash Mining; #90171 (2013)

Zimin Zhang and Robert R. Stewart

Search and Discovery.com

... push-down (time increase) in the PP wave and an amplitude versus offset (AVO) effect; push-down and dimming (amplitude loss) in the PS wave. We also...