Origins of overpressure in the central Xihu depression of the East China Sea shelf basin

Jun Li, Jingzhou Zhao, Zhiqiang Hou, Shuping Zhang, and Mengna Chen

AAPG Bulletin

... for the effect of organic matter on the velocity and density logs and applies the model to correct the organic matter in the Pinghu Formation source rocks...

Differentiation of Beach and Dune Sands, Using Settling Velocities of Light and Heavy Minerals

Bryce M. Hand

Journal of Sedimentary Research (SEPM)

... settling velocity than its companion. To demonstrate that the effect is not the same for both grains, one may consider the results of placing these same...

Quaternary Development of Channels, Levees, and Lobes on Middle Laurentian Fan

William R. Normark , David J. W. Piper , Dorrik A. V. Stow

AAPG Bulletin

..., vertical scale in seconds of round-trip traveltime. Left, vertical scale in meters, assuming sound velocity in water of 1480 m/sec (4,855 ft/sec). Profile...

The Impact of Anisotropic Mechanical Properties on Stimulation and Wellbore Stability in the Beetaloo Basin, Northern Territory, Australia

J Adam Donald, Thomas J. Neville

Unconventional Resources Technology Conference (URTEC)

... the dispersion profile (i.e., C66, therefore γ), with prior knowledge of the borehole fluid velocity, bulk density, and the tool effect within...

Porosity prediction from seismic attributes of the Ordovician Trenton-Black River groups, Rochester field, southern Ontario

O. C. Ogiesoba

AAPG Bulletin

... Rochester well location is due to the combined effect of low-velocity Blue Mountain shale and low-velocity dolomite located in the western graben. The low...

Assessing and processing three-dimensional photogrammetry, sedimentology, and geophysical data to build high-fidelity reservoir models based on carbonate outcrop analogues

Ahmad Ramdani, Pankaj Khanna, Gaurav Siddharth Gairola, Sherif Hanafy, and Volker Vahrenkamp

AAPG Bulletin

... traveltime from the velocity model using finite difference approximation of the eikonal equation. The forward-calculated first arrival...

Inferring Stratigraphy from Seismic Data

R. E. Sheriff

AAPG Bulletin

.... Dohr, G. P., and P. K. Stiller, 1975, Migration velocity determination. Pt. 2, Applications: Geophysics, v. 40, p. 6-16. Domenico, S. N., 1974, Effect...

Abstract: Multi-Disciplinary Pore Pressure Prediction : Reconciliate Geophysics and Basin Modeling to Control Risks and Uncertainties in Drilling Operations (Geophysics Poster 27)

G. Lecante, P. Wojciak, N. Bianchi

Geological Society of Malaysia (GSM)

...-pressured interval indicates the degree of overpressure. This change in the transit time is generally detected in the seismic interval velocity also...

Time-Lapse Geophysics for Mapping Fluid Flow in Near Real Time: Results from a Controlled Mesoscale Experiment

Roelof Versteeg

Special Publications of SEPM

... be to make data available in a web-based problems because of the effect of the change in the data on the viewing format (e.g., the netcdf format, which...

ABSTRACT Monitoring, Verification, and Accounting of CO2 Fate in Geologic Formations: Linking the Chemical and Physical Effects of CO2 Injection to Geophysical Parameters, #90103 (2010)

Tiziana Vanorio, Gary Mavko

Search and Discovery.com

... chemical effects. The green arrow in Figure 1 (left) indicates the effect of mineral dissolution on P-wave velocity, in this case with full water...

Subsurface mapping of central Israel: Implications for hydrocarbon exploration

Yuval Bartov, Stepan Vygovskiy, and Yuri Volozh

AAPG Bulletin

... the velocity change through the section. Velocity model intervals are marked. DT = delta time; E. = Early; J1h = Hettangian; J1p = Pliensbachian; J1s...

Structural style and evolution of the Nordkapp Basin, Norwegian Barents Sea

Luis Alberto Rojo, Nestor Cardozo, Alejandro Escalona, and Hemin Koyi

AAPG Bulletin

... (Figure 5). An initial interval velocity was assigned for each horizon followed by the calculation of the K factor, which describes the change of interval...

Velocity as a Problem in Mississippi

R. R. Phillips

GCAGS Transactions

... it is because we don't know what is happening below the Chalk and what effect it has on our velocity gradient. FIGURE VII This figure shows a contour map...

Integration of Microseismic With Rock Properties From Multi-Component Seismic Data, Mississippi Lime Play, North-Central Oklahoma

Scott W. Singleton, Shihong Chi, Crystal Lapaire, Lisa Sanford, Paul Constance

Unconventional Resources Technology Conference (URTEC)

... these laterals rock properties change due to an increase in shale in the toe half of the lateral, which in turn causes an increase in ductility...

Damped least squares-based deterministic PP wave and SH-SH wave joint inversion method

Ying Lin, Guangzhi Zhang, Baoli Wang, Siyuan Chen, Minmin Huang

International Meeting for Applied Geoscience and Energy (IMAGE)

... velocity disturbance is performed, the contribution of P-wave velocity to increases gradually with the increase of the incident angle, has no change. When...

Trishear: A Review of Kinematics, Mechanics, and Applications

Stuart Hardy, Richard W. Allmendinger

AAPG Special Volumes

...) it is only one of many ways to produce such an effect and (2) similar velocity fields have not commonly been observed in mechanical models (see review below...

The Use of Synthetic Sonic Logs Derived From Seismic Data in the Interpretation of Stratigraphic Variation in Cretaceous Carbonates of the North Field Area, Qatar: Chapter 14

Helena S. Aves, Daniel M. Tappmeyer

AAPG Special Volumes

... as the "velocity change" boundary. In the case of the K-1 subzone the variation of interval velocity across this boundary is a gradual change fro approximately...

Diagenetic and Seismic Concerns Associated with Interpretation of Deeply Buried Mobile Shales

R. J. Day-Stirrat, A. McDonnell, L. J. Wood

AAPG Special Volumes

... behind the major growth fault was a false effect caused by velocity contrasts across the growth fault. These velocity effects are caused...

Structural and time-lapse imaging through gas clouds via FWI at Eldfisk field, North Sea

Zhengxue Li, Leila Bencherif-Soerensen, Per Gunnar Folstad, Brian Macy, Simon Shaw, Baishali Roy

International Meeting for Applied Geoscience and Energy (IMAGE)

..., and the Q effect was not considered to save computational cost. The time-lapse velocity change was then determined by subtracting the baseline (2017...

Yesterday, Today, and Tomorrow in Seismic Exploration

Emil J. Mateker, Jr.

GCAGS Transactions

... information about the type of rocks through which the energy has propagated. Extraction of this information, for example, in the form of velocity...

Sequential vertical gas charge into multilayered sequences controlled by central conduits

M. Foschi, J. A. Cartwright, and C. W. MacMinn

AAPG Bulletin

... of VAC-1 is characterized by a pronounced velocity pushdown effect (Sheriff, 1975) associated with amplitude attenuation (Att. and PD; Figure 7A, B). Part...

Three-Dimensional Geometry and Kinematics of the Gale-Buckeye Thrust System, Ouachita Fold and Thrust Belt, Latimer and Pittsburg Counties, Oklahoma

M. Scott Wilkerson , Paul C. Wellman

AAPG Bulletin

... orogene (Thomas, 1977, 1989, 1991; Viele and Thomas, 1989). Structural trends of the thrust belt change from primarily east-west in eastern Oklahoma...

Amplitude enhancement of far-offset refractions via machine learning

Lurun Su, Han Wang, Jie Zhang

International Meeting for Applied Geoscience and Energy (IMAGE)

... analysis and time-depth calculation. To image the near surface and crustal velocity structures, seismic refraction traveltime inversion and tomography...

Structure and Development of Porcupine Seabight Sedimentary Basin, Offshore Southwest Ireland

D. G. Masson, P. R. Miles

AAPG Bulletin

...------------------------------ basement within the basin and to the blanketing effect of up to 8 km of sediment. Second, the southern end of the "zone of multiple magnetic...

Abstract: Geologic Controls on the Elastic and Petrophysical Properties of Clastic Rocks; #90063 (2007)

Search and Discovery.com