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The AAPG/Datapages Combined Publications Database
Showing 2,007 Results. Searched 200,619 documents.
Proper Simulation of Fracturing-Fluid Flowback from Hydraulically-Fractured Shale-Gas Wells Delayed by Non-Equilibrium Capillary Effects
G. Michel, F. Civan, R. Sigal, D. Devegowda
Unconventional Resources Technology Conference (URTEC)
... be calculated with a relaxation scheme involving the saturation, time derivative of saturation, and the rock-fluid properties (Andrade et al. 2010). 1.E+6...
2013
Elastic full-waveform inversion using random space shift
Yuhui Yao, Jizhong Yang, Yuzhu Liu
International Meeting for Applied Geoscience and Energy (IMAGE)
... mentioning that the calculation of the spatial derivative of wavefield is not involved in the calculation of gradient in RSS-AFWI. In EFWI, it is necessary...
2022
Subsidence and Heat Flow in Intracontinental Basins and Passive Margins
Jean-Claude Mareschal
CSPG Special Publications
.... and The derivative of (16) yields the subsidence rate as: The relationship between the heat flow and the subsidence rate is usually not simple; it involves...
1987
Characterization of Free and Bound Fluids in Hydrocarbon Bearing Shales Using NMR and Py GC-MS
Jameson P. Gips, Hugh Daigle, Mukul Sharma
Unconventional Resources Technology Conference (URTEC)
... clean the pan. Upon analysis, the time derivative of the data was taken, and the end of thermal events was based on where the derivative returned...
2014
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)
...) introduced a hybrid optimization framework, in which derivative information of the objective function is combined with very fast simulate annealing (VFSA...
2022
Elastic FWI for large impedance contrasts
Zedong Wu, Zhiyuan Wei, Zhigang Zhang, Jiawei Mei, Rongxin Huang, Ping Wang
International Meeting for Applied Geoscience and Energy (IMAGE)
... a directly interpretable FWI Image, the normal derivative of the FWI velocities, that is now widely accepted as another stepchange for subsalt imaging...
2022
Seismic Attributes Correlated With Drilling Difficulties in Tertiary Carbonate, Abadi Field, Eastern Indonesia
Wataru Sekiguchi, Koji Matsui, Tatang Juhatta, Dewi Rahmalia
Indonesian Petroleum Association
.... Therefore, it is helpful to check not only variance (or coherence) attribute, but also dip, azimuth and its derivative "dip across fault trend...
2011
Sand Control in Balikpapan Bay Fields
Felix Soepyan, Steve Palar, Budi Kuntjoro
Indonesian Petroleum Association
... pressure derivative plot suggests a well with bore storage and skin Evaluation As part of the evaluation effort done after the gravel pack job...
1998
Integrated Seismic Multi-Attribute Analysis for Complex Fluvio-Deltaic Reservoir Properties Mapping, Minas Field, Central Sumatra
Sigit Sukmono, Dardji Noeradi, Faizil Fitris, Tafsillison, William C. Richmond, Seffibudianti, Pujiyono
Indonesian Petroleum Association
... the number of attributes. For instance, Figure 11 shows that attribute number 7, i.e. the derivative, gives the smallest validation error when...
2003
Application of Statistical Methods to Predict Production From Liquid-Rich Shale Reservoirs
Peng Zhou, Huiyan Sang, Liuyi Jin, W. John Lee
Unconventional Resources Technology Conference (URTEC)
... is much smoother than the rate-time plot, we used (and recommend) the cumulative production data with the aid of the Bourdet derivative algorithm...
2017
Variation of Hyperbolic-b-parameter for Unconventional Reservoirs, and 3-Segment Hyperbolic Decline Curve Model
Saroj Varma, Hamed Tabatabaie, James R. Ewert, Louis Mattar
Unconventional Resources Technology Conference (URTEC)
... depend on the degree of smoothing, and are totally subjective. β’ These findings are not surprising because D is the result of a derivative calculation...
2018
An Integrated Approach to Optimizing Completions and Protecting Parent Wells in the Montney Formation, N.E.B.C.
John Nieto, Graham Janega, Bogdan Batlai, Hugo Martinez
Unconventional Resources Technology Conference (URTEC)
... that linear horizontal flow was not seen on the derivative plot, which would be expected from a fracked horizontal well. The red line in figure 15 below...
2018
Identifying New Potential in a Mature Field: A Mixed Siliciclastic-Carbonate K-Limestone Reservoir Characterization in Supat Field, South Sumatra Basin
Irfan Yuliandri Syukri, Budi Permana, Mugie Ginanjar, Miftahul Firdaus, Sri Windyarsih
Indonesian Petroleum Association
... derivative matching is shown in Figure 5. The short test duration also made it impossible to accurately determine the boundary response in the pressure...
2018
Machine Learning Based Shale Gas Proration Synchronized Computing Method
Zan Chen, Xueqian Zhu, Yexin Fang, Jitong Li
Unconventional Resources Technology Conference (URTEC)
... and expending with Taylorβs formula, the objective function becomes ππ=1 ππ ππ represents the first derivative of ππ(π¦π¦ππ , π¦π¦ππ where, 1...
2020
Replacing Decline Curve Analysis
Randy Hazlett, Umer Farooq, D. Krishna Babu
Unconventional Resources Technology Conference (URTEC)
...-steady state once the upper and lower boundaries are simultaneously encountered by the pressure disturbance. The Bourdet derivative transitions...
2020
Structural Modeling of a Fractured Chalk Reservoir: Toward Revitalizing Gilbertown Field, Choctaw County, Alabama
Jack C. Pashin , Richard H. Groshong, Jr. , Guohai Jin
GCAGS Transactions
... derivative surfaces were generated to model curvature. Juxtaposition diagrams (Allan, 1989) were constructed to characterize sealing relationships along...
1998
Heterogeneous Geomechanical Properties Within the Austin Chalk: Implications for Natural Fractures and SRV
Christopher Zahm, Robert Loucks
Unconventional Resources Technology Conference (URTEC)
... be delineated in the subsurface using derivative curves to highlight the rapid changes in UCS. To improve subsurface applicability, we constructed...
2023
Tectonics of the Texas Portion of the Sabine Island
Dale Short
GCAGS Transactions
... is outlined in red. Note the strong gravity low associated with the outline of the Sabine island. Figure 22. Regional gravity tilt derivative...
2018
The "Carbonate Factory" Revisited: A Reexamination of Sediment Production Functions Used to Model Deposition on Carbonate Platforms
Robert V. Demicco, Lawrence A. Hardie
Journal of Sedimentary Research (SEPM)
... calculations, where, instead of using the derivative of the production function, they approximated the derivative by dividing the original carbonate...
2002
Quantitative Fracture Study--Sanish Pool, Mckenzie County, North Dakota
George H. Murray, Jr.
AAPG Bulletin
... mathematically to bed thickness and structural curvature (the second derivative of structure). It is found that fracture porosity varies directly as the product...
1968
Is There A Better Way to Determine The Viscosity in Waxy Crudes?; #41034 (2012)
John Ludwig, Saifon Daungkaew, Go Fujisawa, Fred Houtzager, Christopher Platt, and Nick Last
Search and Discovery.com
... test, which was analyzed using the TST sample viscosity, as shown in Table 3. To illustrate this point, the shape of the pressure derivative...
2012
Reservoir Characterization of Water Zone above Oil-Water Contact in a Carbonate Reservoir, Offshore Abu Dhabi, #41833 (2016).
Christophe Bassem Maalouf, Irina Baca Espinoza, Nusrat Afrin Afzal, Jorge Costa Gomes, Salem Al-Jaberi
Search and Discovery.com
... is not noticeable, then most probably there is no hydraulic communication between layers. The derivative of pressure build-up in the end of the test...
2016
Physics-Constrained Deep Learning for Production Forecast in Tight Reservoirs
Nguyen T. Le, Roman J. Shor, Zhuoheng Chen
Unconventional Resources Technology Conference (URTEC)
... trends in data before predicting by differencing or transforming the target variable. Differencing is discrete analogy to derivative, so for example...
2021
The influence of topography and transport history on the composition of clastic deposits from the Jurassic Tlaxiaco basin, southern Mexico: limitations on the use of mineral and chemical indices as proxies for paleoclimate
Michelangelo Martini, Mildred Zepeda-MartΓnez, Laura Mori, Fernando NΓΊΓ±ez-Useche, Maria Patricia Velasco de LeΓ³n, Luigi Solari
Journal of Sedimentary Research (SEPM)
... the possibility of being temporarily stored in floodplains and meandering bars, parent rocks and the derivative detritus interacted with weathering fluids...
2024
Physics Informed Data-driven Models for Discovery of Flow Physics and Forecasts in Unconventional Reservoirs
Hardikkumar Zalavadia, Utkarsh Sinha, Prithvi Singh, Zhenyu Guo, Sathish Sankaran
Unconventional Resources Technology Conference (URTEC)
... an output quantity (rate normalized pressure) rather than its derivative, but the fundamental concept of SINDy remains applicable. Formulation The aim...
2023