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The AAPG/Datapages Combined Publications Database

Showing 2,477 Results. Searched 201,044 documents.

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Retrieving geological signal from full tensor gravity gradiometry data using source body migration

Colm Murphy, Richard Farnell, Chris Bellamy, Alan Morgan

International Meeting for Applied Geoscience and Energy (IMAGE)

.... The noisy overprint degrades the signal limiting the ability to map clear signal from the subsurface. FFT based filtering methods are routinely used...

2023

Abstract: Robust Singular Spectrum Analysis for Erratic Noise Attenuation; #90187 (2014)

Ke Chen and Mauricio D. Sacchi

Search and Discovery.com

... filtering, equations truncated singular value decomposition (TSVD) or fast approximations to TSVD for rank-reduction. SSA is efficient for attenuating...

2014

Aspects of the Hydrogeology of the Southern Eromanga Basin, Queensland

P. J. Muller

Petroleum Exploration Society of Australia (PESA)

... effect is diminished where beds subcrop against impervious basement or become more sandy because of facies variations, and by some faults, which allow...

1989

Geology and environmental change: a New Brunswick perspective

A. G. Pronk

Atlantic Geology

... that are the result of this, are beginning to have their effect. The indiscriminant use of natural resources and the production of synthetic materials...

1991

Using Interval Resistivity Data to Help Detect Ground-Water Contamination as a Function of Space and Time — A Case Study, Provo, Utah

Alvin K. Benson, Melissa A. Stubben

Utah Geological Association

... Association, p. 11–28. Interprex Limited, 1988, BOSSIX User’s Manual: Golden, CO., Interpex Limited. Karous, M.K., and Hjelt, S.E., 1983, Linear-filtering...

1995

Post-Fracture Pressure Decay: A Novel (and Free) Stage-Level Assessment Method

Michael Sullivan, Behnam Zanganeh, Austin Springer, Christopher Clarkson

Unconventional Resources Technology Conference (URTEC)

... some advantages because the software is adept at handling rate and pressure data and has advanced data filtering tools. The semilog analysis plot used...

2019

Accumulation of Fine-Grained Sediments in a Periodically Energetic Clastic Environment, Cape Lookout Bight, North Carolina

John T. Wells

Journal of Sedimentary Research (SEPM)

...: Canadian Jour. Fisheries and Aquatic Sci., v. 40 (suppl. 1), p. 83-95. KRANCK, K., 1984, The role of flocculation in the filtering of particulate matter...

1988

Synergetic Search for Subtle Accumulations of Petroleum in Upper Pennsylvanian Algal-Mound and Grainstone Carbonates in Kansas

W. Lynn Watney

Kansas Geological Society

... logs to detect and interpret more directly changes in the strata. Signal enhancement just as multiplexing and frequency filtering, however, may...

1984

Metal attenuation processes in a landfill containing coal combustion waste: Implications for remediation

Christopher Barton, Lindy Paddock, Christopher Romanek, Sally Maharaj, John Seaman

Environmental Geosciences (DEG)

... evapotranspiration (Dobson and Moffat, 1995). The net effect of these techniques is to cut off the oxygen source and to stabilize sediments...

2005

Methods for Recovery of More Oil from Known Fields

T. M. Geffen

Indonesian Petroleum Association

..., the composite effect of the forces limits oil recovery. Tertiary or enhanced recovery is achieved by control of the forces through the use of chemicals...

1980

Further Notes on the Hydraulic Theory of Oil Migration and Accumulation

John L. Rich

AAPG Bulletin

... to migration. In general, faults trending parallel to the direction of water movement should have little or no effect. If a fault lies at right angles...

1923

Gravity Survey of the Layang-Layang Tertiary Basin in Johor, Peninsular Malaysia - A Preliminary Report

V. R. Vijayan

Geological Society of Malaysia (GSM)

... gravity gradient along the southern edge represents a major structural discontinuity, probably a fault plane, and possibly includes the effect...

1990

Evaluating the Effect of Natural Fractures on Production from Hydraulically Fractured Wells Using Discrete Fracture Network Models

Thomas Doe, Alfred Lacazette, William Dershowitz, Clifford Knitter

Unconventional Resources Technology Conference (URTEC)

...Evaluating the Effect of Natural Fractures on Production from Hydraulically Fractured Wells Using Discrete Fracture Network Models Thomas Doe, Alfred...

2013

Time Series Analysis I

Roy E. Plotnick and Karen L. Prestegaard

Special Publications of SEPM

..., the expected value from a random process, has been called the "Hurst phenomenon" or "Hurst effect" (e.g., Walls and Matalas, 1970; Klemes, 1974; Beran...

1995

Time Series Analysis II

Gerard V. Middleton

Special Publications of SEPM

... by removing the effect of the autocorrelation. A revised form of false nearest neighbors, called "false strands" is currently under development...

1995

Nanotomography of Spontaneous Imbibition in Shale

Morteza Akbarabadi, Mohammad Piri

Unconventional Resources Technology Conference (URTEC)

... of the qualitative and quantitative analyze, e.g., segmentation [26]. To resolve this issue, we used smoothening and filtering modules provided by Avizo...

2014

Computer Applications in an Oil-Exploration Company

D. L. Stauft

CSPG Bulletin

... may in effect reduce the amount of searching through visual files by asking for a printout of all cores or tests within a specified geological interval...

1968

Satellite Interferometry and the Detection of Active Deformation Associated with Faults in Suban Field, South Sumatra Basin, Indonesia

Richard A. Schultz, Xiaopeng Tong, Khalid A. Soofi, David T. Sandwell, Peter H. Hennings

Indonesian Petroleum Association

... filter, then stacked to yield an average LOS velocity map of Suban field. The filtering step reduces the error sources associated with any ground motion...

2014

Permeability, Its Measurement and Value

Charles Merrick Nevin

AAPG Bulletin

... suggestions that have been advanced to explain this are: adsorbed air that is trapped in the sample producing a Jamin effect; a clogging action...

1932

Determining Maximum Horizontal Stress with Microseismic Focal Mechanisms - Case Studies in the Marcellus, Eagle Ford, Wolfcamp

Alireza Agharazi

Unconventional Resources Technology Conference (URTEC)

... a significant effect on the stimulation pattern and must be considered for efficient well spacing and stage length design. Numerical simulations of hydraulic...

2016

Sedimentology and Depositional History of the Permo-Triassic Spearfish Formation, Southwestern Black Hills, South Dakota

J. M. Sabel

Wyoming Geological Association

...), Black Hills region: unpublished thesis, Univ. of Neb., Lincoln. Crowley, K. D., 1984, Filtering of depositional events and the completeness...

1984

Gravity in the Prince of Wales, Somerset, and Northern Baffin Islands Region

A. W. J. Berkhout

CSPG Special Publications

... trends (Fig. 2). Calculation of the gravity effect of a two dimensional geologic model therefore allows us to make a quantitative estimate...

1973

Identification and Quantification of Parasequences Using Expectation Maximization Filter: Defining Well Log Attributes for Reservoir Characterization

Saurabh Sinha, Raj Kiran, Javier Tellez, Kurt Marfurt

Unconventional Resources Technology Conference (URTEC)

...: we first provide a statistical filtering approach to interpret the parasequences in a well log and then use machine assisted application on other...

2019

Seismic Forward Modeling of Semberah Fluvio-Deltaic Reservoir

Adi Widyantoro, Wahyu Dwijo Santoso

Indonesian Petroleum Association

... a total of 46 selected lines, which provide an average phase correction of around 70degree rotation for the entire dataset. Gaussian filtering...

2021

Automating Petrophysics and Decline Curves Analysis for Performance Prediction at the Basin -Scale: Application to the Powder River Basin

Cameron Snow, Roland Gunther

Unconventional Resources Technology Conference (URTEC)

... for issues associated with using barite muds. The effect of normalization was evaluated using cross-sections for both curves. An example is shown in Figure 6...

2020

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