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The AAPG/Datapages Combined Publications Database

Showing 33,738 Results. Searched 197,438 documents.

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A Straightforward Workflow for Monitoring CO2 Storage

Marc-Antoine Dupont, Sven Philit, Fabien Cubizolle

GEO ExPro Magazine

... before interpretation commences (Figure 2). First, a structure-oriented smoothing is applied to reduce the noise effect (Figure 2b). The structure...

2021

A 20-Year Retrospective on the Future of Seismic Technology

Andrew Long

Petroleum Exploration Society of Australia (PESA)

... danger. Nevertheless, some standard models technology ('OptoSeis'), and also developin g disruptive and logistically cost effect ive for technology...

2012

7 Brief Remarks on Geothermal Energy

P. E. Gretener

AAPG Special Volumes

... the thermally altered and End_Page 131------------------------ the unaltered rock. Such self potentials may exceed 10 mV/m. 5. Seismic Noise Surveys...

1981

Algorithm Comparison with Cross Sections: Appendix A

David E. Hamilton, Thomas A. Jones

AAPG Special Volumes

... (1974) presents methods that modify a grid in such a way that total curvature is minimized. This has the effect of removing small irregularities...

1992

Interpolation, PSTM, AVO, and a Thin Gas Charged Viking Shoreface in West Central Alberta; #41555 (2015)

Lee Hunt, Scott Hadley, Mark Hadley, Jon Downton, Bashir Durrani

Search and Discovery.com

... of this contrasting AVO effect. The structural setting demanded the use of PSTM gathers for the analysis. Unfortunately, the 3D coverage in the area has coarse...

2015

Multiple Milankovitch Cycles in the Bridge Creek Limestone (Cenomanian-Turonian), Western Interior Basin

B.B. Sageman, J. Rich, M.A. Arthur, W.E. Dean, C.E. Savrda, T.J. Bralower

Special Publications of SEPM

... results. The model combines dilution and productivity mechanisms by suggesting that obliquity predominantly forces dilution through its effect on high...

1998

Quantitatively evaluating the sources of taphonomic biasing of skeletal element abundances in fossil assemblages

Jason R. Moore, David B. Norman

PALAIOS

... and that the remaining variation is simply random noise. DISCUSSION Taphonomic Models It is possible to gain insight into the taphonomic processes influencing each...

2009

Fossil Leaves and Fruits as Indicators of Paleotransport in a Miocene Lake from Northern Idaho

Austin Boyd

Journal of Sedimentary Research (SEPM)

... a random orientation pattern due to a length/width ratio approximating one. The random leaf orientations of C. heteromorpha (Fig. 7) suggest...

1991

SEDIMENT PERMEABILITY AND THE PRESERVATION OF SOFT-TISSUES IN CONCRETIONS: AN EXPERIMENTAL STUDY

VICTORIA E. MCCOY, ROBERT T. YOUNG, DEREK E.G. BRIGGS

PALAIOS

... is necessary to promote mineral formation (the ‘‘decay effect’’). However, low permeability environments can also increase precipitation per unit decay...

2015

Seismic Reef Expression in the North Sumatra Basin

K. Wirjodihardjo

Indonesian Petroleum Association

... seismic processing, producing a high vertical resolution or high frequency content and high signal to noise data, is essential. However, the peak frequency...

1992

Abstract: Feasibility Testing of Time-lapse Seismic Monitoring with Full Waveform Tomography; #90171 (2013)

Chad Hogan, Ken Hedlin, Gary Margrave, and Michael Lamoureux

Search and Discovery.com

... to detect and reveal the extent of these effects, both spatially and in terms of the magnitude of the effect on the velocity. Our early investigations...

2013

Abstracts: Application of Shear-wave Splitting Analysis to Fracture Characterization for a Shaunavon Tight Oil Reservoir; #90173 (2015)

N. Chaminda Sandanayake and Richard A. Bale

Search and Discovery.com

... anisotropy. This polarization effect leads to “shear-wave splitting” in which two separate shear waves, S1 and S2, are recorded from the same reflection...

2015

Use of Seismic Inversion to Constrain the Heterogeneity of Reservoir Models in a Carbonate Environment … a Case Study from Al Shaheen Field Qatar; #20248 (2014)

J. R. Henderson, C. Huegen, A. J. Cherrett, and M. Emang

Search and Discovery.com

... be perturbed by differences in rock frame stiffness resulting from facies changes, but in the relatively homogeneous Kharaib one may expect that this effect...

2014

Using Measurement Uncertainty to Calculate Reservoir Volumes and Reduce Risk in Prospects, #41324 (2014)

Garrett M. Leahy, Emma Howley, Wenxiu Yang, Arne Skorstad

Search and Discovery.com

... In this abstract, we explore how to better quantify the effect of uncertainties in reservoir structure and overcome limitations of conventional...

2014

4-D CSEM, A Cost-Effective Tool for Deep-Water Clastic Reservoir Monitoring, #42336 (2018).

Paulo T. L. Menezes, Joao L. Silva Crepaldi, Andrea Zerilli, Tiziano Labruzzo, Leonardo Alvim, Jorlivan Correa, Emanuel Pinho, Julio Lyrio, Adriano Viana

Search and Discovery.com

... noise • Assess detectability and interpretability of 4D signal EM differences 4D radial electric field magnitude differences after 5 years of water...

2018

The Array Sonic .... A New Technique for Acoustic Measurements

A. James

Indonesian Petroleum Association

... densities as well as mud velocity. More complex expressions are required to account for the effect of frequency. The velocity of the Stoneley wave...

1989

Geostatistical Modeling of the Spaces of Local, Spatial, and Response Uncertainty for Continuous Petrophysical Properties

P. Goovaerts

AAPG Special Volumes

... (e.g., histogram or semivariogram) of the random function model.The impact of the simulation algorithm on uncertainty assessment has received...

2006

Shale Diagenesis

Eric Eslinger, David Pevear

Special Publications of SEPM

... as randomly In some wells, the transition from random to ordered interstratification is less abrupt than shown in X-RAY DIFFRACTION IDENTIFIES SMECTITE...

1988

Estimation of Error in Grain Size Analysis

J. C. Griffiths

Journal of Sedimentary Research (SEPM)

.... Jour. Sci., vol. 27, pp. 204-214. NISSEN, O. and OTTESTAD, P. (1943) On the analysis of variance and the effect of non-normality: Meldinger fra Norges...

1953

Acoustic full-waveform inversion with acoustic and elastic data using a hybrid optimization method

Zeyu Zhao, Mrinal K. Sen, Mohamed Dolliazal, Paul Williamson

International Meeting for Applied Geoscience and Energy (IMAGE)

.... Algorithm 1. VFSA algorithm Algorithm 2. Hybrid optimization for FWI Choose a random starting model m0 and compute energy E(m0 ) Loop over...

2022

Integration of Artificial Intelligence - Machine Learning for Basic Sediment and Water (BSW) Prediction in Steam Flood Heavy Oil Central Gathering Station

Pandu Prabowo Jati, Ade Anggi N.S, Tatit Pratahardia P

Indonesian Petroleum Association

..., on the other hand, chemical injection also has a strong effect on the BSW trend. Unexpectedly, the oil output, the oil concentration in the water (ppm...

2022

Preliminary Evaluation of a Core Scintillation Counter for Bulk Density Measurement in Marine Sediment Cores

Chester Brier , Robert Bennin , Peter A. Rona

Journal of Sedimentary Research (SEPM)

... of the bulk density determination are: (1) The radioactive source emits random radiation, which must be treated statistically to determine the dependence...

1969

Estimation of Stimulated Reservoir Region for Hydraulic Fracturing in Shale Gas Well Based on Ensemble Learning Algorithm

Yang Luo, Bo Kang, Yan Feng, Hehua Wang, Zhongrong Mi, Yi Cheng, Yong Xiao, Xing Zhao, Jianchun Guo, Cong Lu

Unconventional Resources Technology Conference (URTEC)

... models for the four characterization parameters were established separately based on stacking ensemble learning algorithm. Specifically, the random...

2024

Trend Surface Analysis Applied to the Rensselaer Graywacke and its Implications to the Taconics

Charles W. Ondrick , John C. Griffiths

Journal of Sedimentary Research (SEPM)

... physical effect or effects have caused an abnormal relative lengthening of the long a-axis. This elongation has been attributed by the authors...

1969

Geochemical Interpretation on Clumped and Position-Specific Isotopes in Natural Gas; #42563 (2020)

Daniel Xia, Yongli Gao

Search and Discovery.com

... If there is no any interfering factors, clumped isotope distribution is random: 13CH D 3 12CH = 4 13CH 4 12CH 4 12CH D 3 12CH 4 12CH D 12CH D 2 2 3 3 = 12CH 8...

2020

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