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The AAPG/Datapages Combined Publications Database
Showing 2,007 Results. Searched 200,619 documents.
Criteria for Proper Production Decline Models and Algorithm for Decline Curve Parameter Inference
Peng Zhou, Yuewei Pan, Huiyan Sang, W. John Lee
Unconventional Resources Technology Conference (URTEC)
... decline rate) must be always finite and positive; (2) consistent with field experience, the derivative of loss ratio (Arps 𝑏 factor) should...
2018
Integration of Gas-to-Oil Ratio into Production Decline Analysis to Predict Flow Regime Transition
S. G. Lapierre
Unconventional Resources Technology Conference (URTEC)
... of derivative analysis was used to further rationalize the interim gas forecast. The second derivative (with respect to time) of the new gas forecast...
2021
Seismic Stratigraphic Analysis of the Barnett Shale and Ellenburger Unconformity Southwest of the Core Area of the Newark East Field, Fort Worth Basin, Texas
Elizabeth T. Baruch, Roger M. Slatt, Kurt J. Marfurt
AAPG Special Volumes
... and most positive curvature attributes along the Ellenburger surface.A horizontal derivative of the tilt derivative of the total magnetic intensity map...
2012
A Preliminary Assessment of the Hydrocarbon Potential of Kerio Valley Basin: Gravity and Magnetic Interpretation
Abiud Masinde, Cleophas Simiyu, Innocent Murunga, George Muia, Aaron Waswa, Justus Barongo
Africa Energy and Technology Conference, 2016
... directly over underlying sources and make anomalies less complicated. Tilt derivative of the magnetic grid was used to estimate depth to basement...
2016
Terrestrial Biomarkers in Oils from the Surma Basin, Bangladesh
Mahaboob Alam
Southeast Asia Petroleum Exploration Society (SEAPEX)
... derivative characteristic of higher land plants. The occurrences of 24-norlupane has not yet been reported in crude oils. Oleanane is also abundant...
1990
Application of high-resolution reflection seismology to eastern Kansas cyclothems
Ralph W. Knapp
Kansas Geological Society
... approximates the time derivative of the original wavelet. The amplitude response depends on the thickness of the bed. When the bed thickness is wavelength...
1989
Wide-angle AVO-inversion using constant P-traces: AVP-inversion
Dennis Cooke
International Meeting for Applied Geoscience and Energy (IMAGE)
... can be incorporated into either option. 2. P-value (= above-mentioned slope) of the arrival time curve is the derivative of twt with respect to offset...
2022
Geophysical Investigations of the Hot Spring Occurrences in the Sungei Serai and Kampung Dusun Tua Areas, Hulu Langat, Selangor
Mohd Anuar Md. Razali
Geological Society of Malaysia (GSM)
... derivative filters. Regional gravity survey The bouguer anomaly map is shown in Figure 3. A gradual increase in gravity values is observed towards...
1998
Use of Remote Sensing and Field Reflectance Data Integrated with Surface Geochemistry and Geology for Detecting Possible Areas of Hydrocarbon Presence
Morella Arrieche, Adelso Vera, Irene Romero, Marcias Gonzalez, S. Lenio Galváo
Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)
.... The spectral intervals used for continuum removal purposes of both features were, respectively, from 900 to 1080 nm and from 1080 to 1270 nm. Derivative...
2000
Low-frequency data reconstruction for full-waveform inversion
Ramzi Djebbi, Maiza Bekara, Jaime Ramos-Martinez, Nizar Chemingui
International Meeting for Applied Geoscience and Energy (IMAGE)
... cost function. Attributes, such as time-lag (Luo and Schuster, 1991), seismic data envelope (Wu et al., 2014), or phase derivative (Choi and Alkhalifah...
2022
New Technology to Identify and Characterize Natural Fractures
W. W. Weiss, Abdel Zellou
Four Corners Geological Society
... methods used to characterize naturally fractured reservoirs: the examination of surface fractures; derivative maps of the formation structure...
1999
Time-lapse attenuation variations during CO2 injection using DAS VSP data from the CaMI Field Research Station, Alberta, Canada
Yichuan Wang, Donald C. Lawton
International Meeting for Applied Geoscience and Energy (IMAGE)
... derivative of equation 1: ∂ ln A ( t , f ) − − γ A + π fQA1 = ∂t . (2) − Thus, if A(t, f) is available, γA and QA1 at time t are obtained...
2022
A Regional Strike-Slip Fault under the Canning Basin
Yijie Zhan, Peter W. Haines
Australian Petroleum Production & Exploration Association (APPEA) Journal
... derivative (1VD) magnetic map across the Lennard Shelf; (d) gravity map across the Jurgurra-Mowla Terraces; (e) 1VD magnetic map across the Jurgurra-Mowla...
2022
New Life to Old Maps
William Dickson
GEO ExPro Magazine
... to correlate with the productive natural fracture systems. The RTP-THD (total horizontal derivative of reduction to the pole) magnetic anomaly map in Figure...
2019
Utilization of Pressure Data Recorded While Perforating
Ronny Maas, Andon Suwito, Cholid Mas
Indonesian Petroleum Association
... in the SPE monographs (see references). The application of the pressure derivative to the type curves has been demonstrated by Ostrowski and Kloska, (1989...
1992
High-fidelity full-waveform imaging via impedance inversion
Feng Chen, Yu Zhang, Lian Duan, Weishan Han, Yilong Qin, Qianggong Song
International Meeting for Applied Geoscience and Energy (IMAGE)
... with reflectivity is necessary, the impedance image can be converted to a scalar reflectivity (Figure 1d) by taking a directional derivative of our impedance...
2023
High-resolution near-surface land FWI across the Delaware basin fill zone
Terence Krishnasamy, James Sheng, Ronaldo Florendo, James Beck, Antonio Sierra, Sam Murphy, Jay Siebens, Yvonne Iwo-Brown
International Meeting for Applied Geoscience and Energy (IMAGE)
... Hz to obtain a highresolution velocity model (Figure 3b and 3d). By calculating the normal derivative of this high-resolution model, we can generate...
2023
Sub-basin architecture of the Proterozoic McArthur Group, southern McArthur Basin
Teagan Blaikie, Marcus Kunzmann
Petroleum Exploration Society of Australia (PESA)
... vertical derivative of the magnetic data, and by a sharp contrast in conductivity. The magnetic gradient is shallow which indicates a shallow dipping...
2019
Passive seismic horizontal to vertical spectral ratio (HVSR) surveying to help define bedrock depth, structure and layering in shallow coal basins
David Stannard, Jayson Meyers, Thomas Dronfield
Petroleum Exploration Society of Australia (PESA)
... 4. Image of open-file gravity data with a 0.5 vertical derivative filter, coal basin outlines (yellow) and GSWA 1:500,000 scale regional interpreted...
2019
3D interpretation of geological, 3D seismic and conventional geophysical data from the Darlot Gold Mine
Glenn Pears, James Reid, John McGaughey, Will Turner, Graeme Hird
Petroleum Exploration Society of Australia (PESA)
... derivative of the reduced-to-pole magnetic data. The blue rectangle shows the extent of the 3D seismic survey. Apart from the seismic data...
2019
Finite-frequency transmission traveltime tomography in VTI media
Fei Luo, Lanlan Yan, Jiexiong Cai
International Meeting for Applied Geoscience and Energy (IMAGE)
... and (5.3) represent the first and second order u derivative of time for wavefield. 0 x , t ; x r is the adjoint wavefield with inverse time...
2024
A Simple-Effective-Efficient Analytical Model for Multi-Well Gas Lift Allocation Optimization,
Ricky Aditiya Fandi, Saesarian Izwardy, Silvya D. Rahmawati, Pudjo Sukarno
Indonesian Petroleum Association
... the optimum gas injection rate of each well using first derivative. There will not be any problem when gas supply in the field is unlimited...
2017
Hybrid Method: Surface Geochemical and CWT Gamp for Reducing the Risk of Exploration in the Sanga Sanga Area, Kutai Basin, East Kalimantan, Indonesia
Asnanto Multa Putranto, Afzalurrahman Assalam, Ridha Santika Riadi, Robhy Cahya Permana, Teguh Surino Setiawan
Indonesian Petroleum Association
... anomaly based on CWT. Generating seismic attribute based on CWT will result time-frequency derivative of instantaneous amplitude (GAMP). We emphasize...
2021
The Relationship of Organic Components to Source Rocks Types Based on Biomarker Data at Central Sumatra Basin
Anil, Asy’ari Alfin Giovany, Yarra Sutadiwiria
Indonesian Petroleum Association
... to be a derivative of the biosynthesis of membrane lipids from bacteria and supported the euxinic environment because of isorenieratane. The Pr/Ph...
2021
Identification of Condensate Banking With Combination of Pressure Transient Analysis and Simulation Approach: A Case Study
Asep Hudiman, Tito Sumirat, Radieza Satrya, Andri Leits
Indonesian Petroleum Association
... time region, the first radial flow happens at dT = 0.1 – 1 Hours. At late time region, we see the derivative pressure starts to decent and starts...
2022