3-D Geomechanical Modeling for Field Development of a Colombian Shale Play

Leonardo Arias Medina, Azra N. Tutuncu

Unconventional Resources Technology Conference (URTEC)

..., Vp,90 is the horizontal compressional wave velocity in m/s, Vp,0 is the vertical compressional wave velocity in m/s, Vs,0 is the vertical shear wave...

Abstract: How to Improve Location Accuracy When Dealing with Artifacts in Microseismic Event Locations; #90187 (2014)

N. Verkhovtseva

Search and Discovery.com

...; a stacking effect when events form almost a perfect line at a high contrast velocity border; and a sloping effect when events form obvious trends...

Seismograph Interpretation as Related to Changes in Sedimentary Section in West Texas and New Mexico

John Daly , C. N. Page

AAPG Bulletin

... rocks of Triassic, Permian, Pennsylvanian, and Mississippian age. The strike is northeast, with a uniform gradient of increasing velocity northwest...

Abstract: Pore Pressure Estimation and Calibration in Gas Shale Reservoir; #90255 (2017)

Xin Chen

Search and Discovery.com

... implemented to control 3D velocity distribution. Considering the laminated effect of shale, correction of measured velocity from horizontal wells is required...

Delta Formation: REPLY TO C. H. CRICKMAY

Charles C. Bates

AAPG Bulletin

... of the asymmetric velocity profile or remain at the surface. In view of the dominant effect of hydraulic head where density contrast is slight or non...

3-D seismic Data in Delineating Productive Ismay Algal Mounds in Southern Paradox Basin, Utah, By, R.O. Louden, D.D. Lehman, W.E. Johnson and D.L. Edwards, Search and Discovery Article #40048 (2002)

Search and Discovery.com

Porosity-Velocity Distribution in Stratigraphic Sequences: The Marion-Yin Model, by Juan Florez and Gary Mavko, #40105 (2003).

Search and Discovery.com

From WHP to BHP Using Machine Learning in Multi-Fractured Horizontal Wells of the Vaca Muerta Formation

Agustín Terminiello,Matías Nasca, Juan Filipich, Donald Mc Intyre, Pablo Crespo

Unconventional Resources Technology Conference (URTEC)

...From WHP to BHP Using Machine Learning in Multi-Fractured Horizontal Wells of the Vaca Muerta Formation Agustín Terminiello,Matías Nasca, Juan...

Studies on Influential Factors of Flowback and Productivity of MFHWs and a Field Case in Shale Gas Formations

Guicheng Jing, Zhangxin Chen

Unconventional Resources Technology Conference (URTEC)

.... The proppant particle diameter has a very important effect on the critical flow velocity. This model is applied to calculate and study the effect...

Numerical modeling of microfracturing and primary hydrocarbon expulsion in the Jurassic Lower Tuwaiq Mountain Shale: A conceptual framework

Syed Haider, Tadeusz W. Patzek, Thomas Finkbeiner, and Ralf Littke

AAPG Bulletin

... of minimum horizontal stress, ∂Sh/∂z, estimated using the multiple diagnostic fracturing injectivity tests is 0.86–0.96 psi/ft (19–1 kPa/m). The gradient...

ABSTRACT: Reflection Tomography for Validation of Subtle Structures: A Case History from Southern Tunisia; #90051 (2006)

Harald Granser, Oezsen Refik

Search and Discovery.com

... static problems due to sanddunes at surface with low velocities but also by uncertainties in depth-conversion because of velocity variations...

Gulf Coast Geosyncline

Donald C. Barton , C. H. Ritz, Maude Hickey

AAPG Bulletin

... of the effect of the variation of the specific gravity of the basement were made by the following formula which was derived for the gradient which...

Gulf Coast Geosyncline

Donald C. Barton , C. H. Ritz a, Maude Hickey

AAPG Special Volumes

... of the effect of the variation of the specific gravity of the basement were made by the following formula which was derived for the gradient which would...

Abstract: Estimation of Dispersive Parameters of Surface Wave Using the Generalized S Transform; #90187 (2014)

Roohollah Askari and Robert J. Ferguson

Search and Discovery.com

... to simultaneously estimate wavenumber, group velocity, phase velocity and frequency dependent attenuation. The group velocity is obtained from...

Lithology-Controlled Stress Variations: A Case Study of the Woodford Shale, Oklahoma

Xiaodong Ma, Mark Zoback

Unconventional Resources Technology Conference (URTEC)

...) in Northern Oklahoma. We concentrate on the stress variations along two WDFD horizontal wells. We present evidence of stress variations with lithology...

Effects of Overburden Anisotropy and Vertically Aligned Fractures on P-Wave Azimuthal AVO Responses

Fatkhan, Yudi Yanto, Nofri Faruza Said

Indonesian Petroleum Association

... are modeled. It is clear that the VTI overburden modified the AVO gradient in all cases since the anisotropic parameter δ has a strong effect...

An Interpreter's Guide to Improvements in Depth Imaging through Model-Based Velocity Estimation and Refinement

Andy Furniss

Petroleum Exploration Society of Australia (PESA)

... the horizontal component. In any situation where there are vertical or lateral velocity variations anywhere along the seismic raypath, the two velocities...

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

John B. Southard, Lawrence A. Boguchwal

Journal of Sedimentary Research (SEPM)

... variables U and d but also by 0 and d. Here, however, the effect of flow depth is much less: the effect of the substantial change in velocity with flow...

Interpreting the Concept of the Sedimentation Unit

Alan V. Jopling

Journal of Sedimentary Research (SEPM)

... velocity and depth-ratio vary systematically from one experiment to the next, (2) the deposition of horizontal bedding over a range of steady-state...

A Hydrodynamic Classification of Grain Shapes

J.P. Le Roux

Journal of Sedimentary Research (SEPM)

... Sedimentologia, v. 15, p. 33-45. JANKE, N.C., 1966, Effect of shape upon the settling velocity of regular convex geometric particles: Journal of Sedimentary...

Possible Utilization of Electrophoretic Phenomenon for Separation of Fine Sediments Into Grades

George Tchillingarian

Journal of Sedimentary Research (SEPM)

... that concentration will have some effect upon cataphoretic velocity, which should also be evaluated...

Chapter 8: Evaluation of Anomalous Pressuring and Gas Saturation Using 2-D and 3-D Visualizations of Well Log Information

Zun S. Jiao, Ronald C. Surdam

Montana Geological Society

... on the velocity-depth plot. In order to better isolate the effect of gas saturation and anomalous pressure on the velocity profiles...

Flow Transformations in Particulate Gravity Currents

Dave Waltham

Journal of Sedimentary Research (SEPM)

... the flow velocity varies with height. A flow in which the velocity increases uniformly with height would have a gradient given simply by u/z = 2/h (i.e....

Reconstruction of the Subsurface Reflected Wavefield on a Dense Grid from Multisensor Streamer Data

M. Vassallo, K. Eggenberger, D.J. van Manen, P. Watterson, A. Raskopin, A. Özbek

Indonesian Petroleum Association

..., recording the particle velocity vector in addition to the pressure, and showed that the value of the horizontal particle velocity measurement helps...

How to Improve the Definition of Seismic Reflection Data

D. Michon, R. Garotta

Indonesian Petroleum Association

... to record. This effect depends on the apparent horizontal velocity of the signal. In fact, reflections even horizontal ones, appear slanted due...