The Application of PSDM VTI Method to Generate a Velocity Model That Can Solve the Mistacking Problem

Aulia Ahmad Nafis, Hasan Nurudin, Ikhsan Hanurogo, Bagus Sapto M, Ahmad Zaenudin

Indonesian Petroleum Association

... the difference of the velocity that propagates based on its direction. And it will make the CDP gather have hockey stick effect as in Figure 2...

Combining high resolution modelling and one-way wave field extrapolation migration to image beneath a complex overburden: A case study from Porcupine Basin, Ireland

Partha Pratim Mandal, Weidi Koh, Julien Bluteau, David Laws, Jennifer Greenhalgh

Petroleum Exploration Society of Australia (PESA)

... imaging challenge is the effect of high velocity, laterally variable Late Cretaceous chalk. The transition from this carbonate to underlying clastic...

Impact of an Integrated Seismic Data Processing Approach: A Case Study in Central Sumatra

Mars E. Semaan, Eddy Murhantoro, Maryanto, Achmad Bermawi, Budi Subianto, Hari Santoso

Indonesian Petroleum Association

... velocities and their relationships (Poisson's ratio). The resulting P-wave velocity can be used to perform time-to-depth conversion and to predict target...

Bed Configurations in Steady Unidirectional Water Flows. Part 2. Synthesis of Flume Data

John B. Southard, Lawrence A. Boguchwal

Journal of Sedimentary Research (SEPM)

..., mean flow velocity U, mean boundary shear stress 0 or shear velocity u* = (0/), and flow power P. In making a choice, three considerations could...

Imaging of multiwell and multifiber walkaway DAS-VSP datasets in a CCUS demonstration project onshore Japan

Yuji Yamada, Shotaro Nakayama, Takuji Mouri, Manish Lal Khaitan, Philip Armstrong, Olga Podgornova

International Meeting for Applied Geoscience and Energy (IMAGE)

... offset and with increasing two-way-time. Incoherent noise was mostly attenuated through shot domain low velocity noise modelling and removal in the tau-p...

Advances in Geophysical Techniques for the Detection of Drilling Hazards and Their Application to Seismic Exploration

D. C. N. Pratt, Tong Pow Mun

Southeast Asia Petroleum Exploration Society (SEAPEX)

... of reflectors to be imaged. X min ≥ V a 2 T a f Where X (min) is the minimum cable length V is the stacking velocity T is the TWT...

ABSTRACT: Deepwater Depositional Phase Diagram: A Strategy for Predicting the Architecture of Deepwater Reservoirs Considering Slope Gradient and Clay Percentage; #90061 (2006)

Tim R. McHargue

Search and Discovery.com

... water systems, flow volumes decrease with time through a depositional cycle while clay percentage increases. Consequently, the stacking pattern...

Permeability Multiplier Prediction Utilizing Wide Azimuth 3D OBC Seismic Data; #41349 (2014)

T. Matarid

Search and Discovery.com

... of the quadrants. This type of Azimuthal analysis presumes that flat layers and vertical cracks is the summary of the rocks. Stacking velocity (Figure 1...

Biochronology

W. A. Berggren , J. A. Van Couvering

AAPG Special Volumes

... (1974), from the correlations used in our previous work (FOOTNOTE 4) and strongly supports the revision of the time scale of marine microfossil datum...

Collection and Processing of Digitized Acoustic Log Data

R. A. Broding J. L. Poole

CSPG Bulletin

... to the log of velocity, as previously suggested by Peterson (1955). The one-way travel time on a millisecond interval was machine computed along...

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

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

Indonesian Petroleum Association

... knowledge of the velocity field. Most of the time, only conventional, stacking velocities are available for the start up of the study. Figure 14. Migpack...

THE RENAISSANCE OF GRAVITY

Search and Discovery.com

Sonic Saturation Inversion and AVO Modeling in the Tunu Gas Field

Patrick Fouchard, Scott Leaney, Sugimin Harsono

Indonesian Petroleum Association

... into the formation because of the velocity gradient set up by the invasion profile. Hornby (1993) has used sonic travel time tomography to invert for such a radial...

Depth conversion and seismic inversion of the Scarborough gas field

Joseph Kremor, Manish Agarwal, Paul Spaans, Ung Sing Wong

Petroleum Exploration Society of Australia (PESA)

... the final velocity model. Well constrained tomography transforms depth errors into time errors. Then, the error in the velocity model is calculated...

Assessment of the permanent seismic sources for borehole seismic monitoring applications: CO2CRC Otway Project

Sinem Yavuz, Julia Correa, Roman Pevzner, Barry Freifeld, Todd Wood, Konstantin Tertyshnikov, Sofya Popik, Michael Robertson

Petroleum Exploration Society of Australia (PESA)

... then NMO corrected using a one-dimensional velocity model, through the VSP to CDP transform. Figure 5 shows the second field trial VSP-CDP transform...

Flow Behavior of Ponded Turbidity Currents

Marco Patacci, Peter D.W. Haughton, William D. Mccaffrey

Journal of Sedimentary Research (SEPM)

... is the choice of a suitable time window. In the literature, very different choices are present (e.g., 7 to 37 s in Best et al. 2001; 1 s in Kneller et al...

Gleaning Meaningful Information from Seismic Attributes

Search and Discovery.com

... or median filter, which has the effect of enhancing laterally continuous events by reducing randomly distributed noise and at the same time not wiping...

Abstract: Velocity Problems not Related with Thrusting or Salt Tectonics, by O. Ferraris, A. Salinas, M. Koremblit, and D. Soubies; #90933 (1998).

Search and Discovery.com

Multidisciplinary site investigations using refraction microtremor surveys

A. Pancha, J. Louie, R. A. Apperley

International Meeting for Applied Geoscience and Energy (IMAGE)

... nearby trees, to determine the underlying 1D velocity structure. The methodology takes advantage of Rayleigh waves that are very easily generated...

Newtonia Field: A Model for Mid-Dip Lower Tuscaloosa Retrograde Deltaic Sedimentation

Michael D. Hogg

GCAGS Transactions

... and precluded synsedimentary expansion. Paleotopography on the "basal" sand of the Stringer Member has a pronounced effect on positioning of river channels...

Groundwater processes in a sandbar-regulated estuary, Mengabang Telipot, Peninsular Malaysia

Mei Kee Koh, Edlic Sathiamurthy, Peter Robertson Parham

Geological Society of Malaysia (GSM)

... groundwater to circulate around parallel wells W4-W6 and consequently increases the residence time. Density-driven circulation and low seepage velocity...

Seismic Reflections from a Lau Basin Magma Chamber

Janet L. Morton, Norman H. Sleep

Circum Pacific Council Publications

... of this effect, we computed synthetic common midpoint gathers by raytracing through two velocity models: one with two flat layers representing...

Current Trends in Geophysics

H. E. Stommel, J. M. Graul

Indonesian Petroleum Association

... data are first separately migrated and then followed by a conventional stack. The effect is elimination of dip dependent velocity prior to stacking...

I. Relation of Structural Section to Seismic Section

Robert E. Sheriff

AAPG Special Volumes

... this with a reflection from the base of a high-velocity wedge. The angle between the reflections on the seismic time section (Fig. 6) will differ from...

Abstract: TTI Anisotropic Depth Migration: Which Tilt Estimate Should We Use?; #90211 (2015)

Francois Audebert and Volker Dirks

Search and Discovery.com

...-way traveltime along the normal ray, the apparent slowness (traveltime gradient) at the emergence point, and the apparent NMO velocity, Vnmo (related...