Measuring Behind Casing Water Flow

T. M. Williams

Indonesian Petroleum Association

... to measure vertical water flow in or behind multiple casings. This logging system can measure: • the direction of flow • the linear flow velocity...

A Practical Review of Migration Issues and Solutions; #40723 (2011)

Ian F. Jones

Search and Discovery.com

..., the method of velocity model building must be tailored to the type of depth migration algorithm we intend to use. We nowadays commonly have available...

High-End Model Building Techniques for Revealing a Pre-Carbonate Reservoir Offshore East Natuna Basin, Indonesia

Jun Wang, Yonghe Guo, Yitao Chen, Muhammad Nauvall Juliansyah, Nick Crabtree

Indonesian Petroleum Association

... difficulties for conventional raybased reflection travel-time tomography. Figure 3 - Initial velocity and refraction energy penetration analysis (Depth...

Complex Model Building using Objective Construction of Curve Ray Time Migration Moveout with Geologic Constraints, #41596 (2015).

Kerry Stinson, Shlomo Levy, Edward Crase, Wai-Kin Chan

Search and Discovery.com

... geologic interval velocity model is tested using prestack depth migration, and also as the initial model for subsequent prestack depth updating...

Sonic Saturation Inversion and AVO Modeling in the Tunu Gas Field

Patrick Fouchard, Scott Leaney, Sugimin Harsono

Indonesian Petroleum Association

... the appropriate fluid and matrix densities in equation 3. Clay is included in the matrix density as: The shear velocity is affected by the pore...

The Application of a Linear Increase of Velocity with Depth to Seismic Dip Migration

J. E. Stones

Oklahoma City Geological Society

...The Application of a Linear Increase of Velocity with Depth to Seismic Dip Migration J. E. Stones 1958 304 304 The purpose of this paper is two-fold...

Abstract: Subsalt Velocity Estimation Using Wave-Equation Tomography with Surface Offset Gathers; #90319 (2018)

Yujin Liu, Yan Wu, Xiongwen Wang, Tong W. Fei, Yi Luo

Search and Discovery.com

... by ray tracing methods and wave equation (WE) tomographic operators. In subsalt areas, ray tracing cannot handle the large velocity contrast between salt...

Application of Seismography to Geological Problems

Eugene McDermott

AAPG Bulletin

... expressed simply: [EQUATION] where V is the velocity, E is the appropriate coefficient of elasticity, and D is the density. In non-rigid media...

Seismic Imaging in Anisotropic Media. or... "A Better Way to Moveout and Migrate Long Offset Data"

Rolf Klotz, Martin Bayly, Sue Downie, Swee Leng

Indonesian Petroleum Association

.... A ray passing through a typical sequence of layers that increase in velocity with depth covers more horizontal distance in the deeper layers than...

Abstract: Multiple Reflections and Head Waves in Gulf of Suez, by S. N. Domenico; #90963 (1978).

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High-fidelity full-waveform imaging via impedance inversion

Feng Chen, Yu Zhang, Lian Duan, Weishan Han, Yilong Qin, Qianggong Song

International Meeting for Applied Geoscience and Energy (IMAGE)

... designed a simple experiment. We have a linear increasing velocity over the depth to provide us with the turning waves. We also have a density model...

Abstract: Derivation of Seismic Depth Sections

H. Buchholtz, W. Houba

Geological Society of Malaysia (GSM)

... applying a horizon by horizon migration based on a ray tracing method. The resulting velocity distribution is then used in the wave equation...

The Application of Velocities and Models to Seismic Interpretation

G. Jarrota

Indonesian Petroleum Association

... the velocity within a group of common depth point ray paths assumes that all the ray paths of the group cross the same layers. This assumption fails for some...

Developing a Versatile Method for Rock Physics Modeling in a Carbonate Reservoir by Integrating Rock Mechanic Laboratory Results, Petrophysical Analysis and Computational Rock Physics: A Case Study from The Kais Formation in the Salawati Basin

Al Hafeez, Ananto Wibisono, Rochmad, Khairil Iqbal, Agus Guntoro, Gianita Octavia

Indonesian Petroleum Association

... diagenesis. METHODS By assuming a linear (non linear for limestone) relationship between P- wave velocity (or S-wave) and porosity (as displayed...

ABSTRACT: Seismic Modeling with One-Way Wave Equation, by Jiao, Jianwu; Saleh, Saleh M.; Verschuur, Eric; #90141 (2012)

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Star: Shallow Time Anomaly Replacement

Michael O. Marcoux, Lee Lu

Southeast Asia Petroleum Exploration Society (SEAPEX)

... using wave equation modelling. The results of the ray tracing experiment follow. Model and Synthetic Data The velocity-depth model selected...

ABSTRACT: An Alternative Interpretation of Linear Dipping Events on 2-D Seismic Data from the Wichita Mountains Frontal Zone; #90020 (2003)

Jan M. Dodson, Roger A. Young, Kevin J. Smart

Search and Discovery.com

... combine with large velocity contrasts between Permian sediments and Precambrian basement to give rise to complex seismic ray paths. High-amplitude linear...

Well Log Prediction Using Machine Learning

Sundeep Sharma

Oklahoma City Geological Society

... equation, Vp = 357ρ4 Where Vp is the compressional velocity in ft/s and ρ is the bulk density in g/cc. We can substitute Vp for 106/DT(μs/ft...

Cross-Well Seismology: A New Production Tool

B. N. P. Paulsson, R. T. Langan

Indonesian Petroleum Association

... the depth of sources and receivers in both surveys. In laboratory studies Tosaya et al. (1984) have examined the change in compressional velocity...

Prestack Depth Imaging Within the Makassar Straits, Eastern Kalimantan, Indonesia

Chris Willacy, Suryadi Oemar, A. Edy Hermantoro, Paul Gilleran

Indonesian Petroleum Association

... traveltimes which are used to generate an initial interval velocity via the Dix equation. CRP ray tracing of the velocity model produces synthetic...

Abstract: Subsalt Migration Velocity Analysis with the Common Image Cube Approach, by K. Mansoor, O. Hermant, H. Baudon, S. Warzocha, and M. Van De Rijzen, #90188 (2014)

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Rock Physics Diagnostics as a Prerequisite for Optimal Petrophysics

Akash Mathur, Hilfan Khairy

Indonesian Petroleum Association

... porosity from velocity for majority of the depth intervals here. We observed that even though Wyllietime-average equation could be matched to true density...

High-Resolution Anisotropic Earth Model Building on Conventional Seismic Data Using Full-Waveform Inversion: an Offshore Australia Case Study

Bee Jik Lim, Denes Vigh, Stephen Alwon, Saeeda Hydal, Martin Bayly, Chris Manuel, Dimitri Chagalov, Gary Hampson, Dimitri Bevc

Indonesian Petroleum Association

..., the initial starting model was derived from a smooth version of a reflection traveltime tomography velocity field derived from a depth migration workflow...

Abstracts: Near-surface Velocity Model Building and Statics in Permafrost Regions; #90173 (2015)

Tianfei Zhu, Yan Yan, and Jon Downton

Search and Discovery.com

... in the tomography to determine the velocity of the nodes traversed by the ray path of this arrival. As a result, layers with a negative velocity gradient within...

Abstracts: Application of CSP Gather Modeling for Determination of Velocity Smoothing Operator for Prestack Kirchhoff Depth Migration; #90173 (2015)

Hassan Khaniani and John C. Bancroft

Search and Discovery.com

... for the ray based depth migrations. However, for our analysis, we selected a scatter point located at (5500, 2450) m coordination of the Marmousi velocity...