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The AAPG/Datapages Combined Publications Database
Showing 402 Results. Searched 195,488 documents.
Enhancing high-frequency vibroseis images of near surface: Uncorrelated is key
Richard D. Miller, Zachary Lawrence, Alex Martinez, Julian Ivanov, Dmitry Borisov, Joseph Reilly
International Meeting for Applied Geoscience and Energy (IMAGE)
... upsweep. Spectral analysis of the last 4 seconds of the sweep as recorded at the 55 traces displayed in Figure 2 highlights this non-programmed impulse...
2023
Experience in the Use of Seismic Stations with Magnetic Recording
B. I. Bespyatov, A. I. Khramoy
Petroleum Geology: A Digest of Russian Literature
... of various groups with an impulse regimen of seismic oscillations carried out by the Lower Volga Branch of VNIIGeofizika has shown that for effective...
1960
Reservoir Rocks Behaving Differently
Thomas Smith
GEO ExPro Magazine
... Spectral Broadening and the Presence of the Slow Wave In areas where either explosive or some form of impulse seismic source is used, the nonlinearity...
2014
Different Approaches of Combining Geophone and Hydrophone Data From OBC Seismic at Bintuni-Berau Bay, Papua
Tepy Septyana, Yayat Supriatna, Supriyono, Greg Schurter, James Keggin, Jean-Jacques Chameau
Indonesian Petroleum Association
... level prior to PZ summation. This is what we term as “calibration”. Calibration procedures aimed to correct the sensor impulse responses in their real...
2010
Application of Seismic Shear Wave Refraction for Subsurface Soil Dynamic Investigation at Bukit Changgang, Banting, Selangor
Abdul Rahim Samsudin, Khairul Anuar Mohd. Nayan, Umar Hamzah
Geological Society of Malaysia (GSM)
.... JuLy 1997 73 74 ABDUL RAHIM SAMSUDIN, KHAIRUL ANUAR MOHD. NAYAN AND UMAR HAMZAH G3 G2 +G1 Horizontal Impulse a 0 150 I 'G1 I 200ms. I...
1997
Resilient Leadership - The Pathway beyond COVID
Stuart B. Taylor
Australian Petroleum Production & Exploration Association (APPEA) Journal
...-critical (depression) Intensity (confusion) Relaxation (reverse) (master stress) 5. Impulse control (reverse) (engage emotions) While the strengths provide...
2021
Application of Seismic Surveying to Recognition of Productive Part of Gas-Oil Strata
V. V. Churlin, L. A. Sergeyev
Petroleum Geology: A Digest of Russian Literature
..., Gostoptekhizdat. 3. Sergeyev, L. A., Boyaroyts, A. A., Churlin, V. V., and Sokolov, O. N., 1963, Impulse acoustical logging in cased wells: Geologiya Nefti i...
1963
A Robust Gradient for Long Wavelength FWI Updates
Jaime Ramos-Martinez, Sean Crawley, Kathy Zou, Alejandro Valenciano, Lingyun Qiu, Nizar Chemingui, Andrew Long
Petroleum Exploration Society of Australia (PESA)
... Figures 1a and 1b to produce an RTM impulse response free of back-scattered noise. Similarly, an FWI gradient can be derived by dynamically weighting...
2016
Correlation of Reflection Seismograph Records in California
Henry Salvatori
AAPG Bulletin
... reflection records obtained in this area at points spaced about 2 miles apart. As may be observed, the reflected impulse marked A is the dominant reflection...
1933
Use of the Gamma Method for Determination of Water-Flooded Strata
M. Kh. Khusnullin
Petroleum Geology: A Digest of Russian Literature
... of the Bavly field. Based on data from the impulse-neutron method, flooding of the non-perforated oil-bearing sandstone in the 1798.6-1814 m interval began...
1973
Delineation of CBM Reservoir Using Sparse Layer Inversion: Tanjung II CBM Field Case Study
Sunarli Ardi, Hanif Widya Nugraha, Shabrina Paramitha, Dian Larasati, Gathuk Widiyanto, Dinda Larasati Rahmani, Alfian Usman
Indonesian Petroleum Association
... into an impulse function where cδ (t) and dδ (t + Δt), where Δt is the time difference in a thin layer, each c and d is the reflection coefficient. Dipole...
2017
First Look at Seismic Data from a Towed Dual-Sensor Streamer
Andrew Long, Natasha Hendrick, Rune Tenghamn
Petroleum Exploration Society of Australia (PESA)
... stra ightforward to yield the deghosted pressure and ve locity wavefields. First, the impulse response of the velocity sensor (which has a non ~flat...
2007
Mineral Resources of Ecuador: Their Development and Prospects for New Finds--Summary: Minerals
Carlos F. Mosquera C.
AAPG Special Volumes
... prices stimulated a new impulse of mining. In addition to precipitates of precious metals, concentrates of copper, lead, and zinc were produced...
1976
ABSTRACT: SOUTH CASPIAN BASIN - EXCITEMENT AND MOVEMENT OF SEDIMENTARY MASSES : MECHANISM AND GEOLOGIC CONSEQUENCES; #90013 (2003)
IBRAGIM GULIYEV
Search and Discovery.com
... the channels of HC discharge (so called, subvertical zones of the impulse discharge of matter. Model of gravitation instability One of the possible models...
2003
Abstract: Lamb Waves Recorded in Microseismic Monitoring Wellbores; #90174 (2014)
Andy St-Onge
Search and Discovery.com
... of acoustic shear and compressional wave velocities for steel samples by impulse excitation of vibrations, IV Conferencia Panimericana de END, Buenos...
2014
Abstract: Estimation of Q: a Comparison of Different Computational Methods; #90187 (2014)
Peng Cheng and Gary F. Margrave
Search and Discovery.com
... (t) ∗ I(Q, t) − µw2 (t)‖2, where ∗ denotes convolution, the minimization is taken over the range of possible Q values; I(Q, t) is the impulse...
2014
Abstract: Hydraulic Fracturing as a Global Cascade in Networked Systems; #90187 (2014)
David Cho and Gary F. Margrave
Search and Discovery.com
... and represents an impulse function. According to equation 2, the rate at which the amplitude decays is inversely proportional to r and is scaled...
2014
Abstract: Multi-Scale 2D Acoustic Full Waveform Inversion with High Frequency Impulsive Source; #90187 (2014)
Vladimir N. Zubov, Michael P. Lamoureux, and Gary F. Margrave
Search and Discovery.com
... 1.5 SOIL 1.4 1.5 1.4 1.3 1.3 1.2 1.2 1.1 1.1 1 1 0.9 0.9 0.8 0.8 Figure 2 Spatial domain decomposition with corresponding impulse...
2014
Abstracts: Revisiting Homomorphic Wavelet Estimation and Phase Unwrapping; #90173 (2015)
Roberto H. Herrera and Mirko van der Baan
Search and Discovery.com
... by the reflectivity function r(t) and an unknown impulse response, denoted as the source wavelet w(t) , so we are addressing a blind deconvolution problem...
2015
Abstract: Converted-Wave Prestack Time Migration with a New Approximate Migration Weight; #90224 (2015)
Chuck Ursenbach and Peter Cary
Search and Discovery.com
... of accuracy as current approximations in use for P-wave migration. Impulse responses as well as migrations to stacks and gathers are used...
2015
Characteristics of the Free Surface Multiple Attenuation Using Wave Field Extrapolation; #40504 (2010)
Patrícia P. Ferreira, Marco Antonio, Cetale Santos, and Luiz Landau
Search and Discovery.com
... is the Green’s Function and n is an outward vector normal to S (Figure 1). In this work, the Green’s Function is interpreted as the impulse response of a medium...
2010
Kutei Basin: Feasibility Study of a Broadband Acquisition
Gilbert Del Molino, Fabri Ikhlas Gumulya, Dedy Sulistiyo Purnomo, Paolo Battini, Bonita Nurdiana Ersan, Francesca Brega, Ferdinando Rizzo, Giorgio Cavanna, Buia Michele
Indonesian Petroleum Association
... extension toward the high frequencies of the “acquisition impulse response”; so in practice no “acquisition related high filters”, in order to get...
2013
Application of Airborne Transient Electromagnetic (SkyTEM) Technique for Buried Valley Detection in Part of Hadsten, Aarhus County, Denmark
Siti Nazira Masrom, Abdul Rahim Samsudin
Geological Society of Malaysia (GSM)
... Rahim Samsudin electromagnetic impulse is measured in the time domain. A thorough discussion of the TEM method and interpretation can be found...
2012
Resonance Frequencies in Passive Recordings Map Fracture Systems: Eagle Ford and New Albany Shale Examples
Charles Sicking, Jan Vermilye
Unconventional Resources Technology Conference (URTEC)
... that covers the time range from before the pump startup until after the initial surge in pressure and slurry rate. The spectrogram shows a large impulse...
2019
Measurement Environments Effect on DTS Surveys: A Case Study on Fiber Cable-Wellbore Coupling
Kagan Kutun, Ge Jin, Jennifer L. Miskimins
Unconventional Resources Technology Conference (URTEC)
... grids’ characteristic temperature response signal to a unit degree wellbore impulse. Figure 3 – Schematic representation of model domain and boundary...
2021