Results 191 to 200 of about 127,212 (251)

Rock typing and facies identification using fractal theory and conventional petrophysical logs

The APPEA Journal, 2018
Rock typing or subdivision of a reservoir either vertically or laterally is an important task in reservoir characterisation and production prediction. Different depositional environments and diagenetic effects create rocks with different grain size distribution and grain sorting.
Roozbeh Koochak, Manouchehr Haghighi, Mohammad Sayyafzadeh, Mark Bunch   +3 more
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Integrating Reservoir Characterization: 3D Dynamic, Petrophysical and Geological Description of Reservoir Facies

SPE Asia Pacific Oil and Gas Conference and Exhibition, 2010
Abstract Integrating conventional geologic, petrophysical and reservoir engineering rock typing methods requires studies which incorporate 3D imaging of rock material, 2D petrographic studies, fluid:fluid and fluid:solid interactions (e.g., wettability), and geological facies descriptions.
Mark Knackstedt, Patricio Jaime, Alan R Butcher, Pieter WSK Botha, Jill Middleton, Rob Sok   +5 more
openaire   +1 more source

Seismic Facies-controlled Prestack Simultaneous Inversion of Reservoir Elastic and Petrophysical Parameters

Proceedings, 2018
To improve the accuracy and practicability of elastic and petrophysical parameter inversion, we develop a strategy for estimating the elastic and petrophysical parameters based on the Gassmann equation using deterministic prestack inversion.
Y. Hao, S. Zhang, Y. Dong, S. Chang, H. Huang   +4 more
openaire   +1 more source

Electrofacies and Geological Facies for Petrophysical Rock Typing: Khuff C

SPE Saudi Arabia Section Technical Symposium, 2009
Abstract For integrated reservoir characterization a translation scheme must be established to link subsurface data across the disciplines, from the seismic and geological through the petrophysical to the reservoir dynamic properties. This translation process requires data sets that cross discipline boundaries and that establish robust ...
openaire   +1 more source

2D joint inversion of geophysical data using petrophysical clustering and facies deformation

GEOPHYSICS, 2015
Geologic expertise and petrophysical relationships can be brought together to provide prior information while inverting multiple geophysical data sets. The merging of such information can result in more realistic solution in the distribution of the model parameters.
J. Zhang, A. Revil
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Facies uncertainty in petrophysical forward function: A West Africa offshore field example

SEG Technical Program Expanded Abstracts 2011, 2011
In the context of geophysical inversion, a petrophysical forward function provides the link between properties that are directly geophysically detectable (e.g., seismic velocities and attenuation) and rock and fluid properties. Due to heterogeneity of rock properties uncertainty of the petrophysical forward function can be high.
Mohammad Shahraeeni, Andrew Curtis
openaire   +1 more source

Integrating facies analysis and geostatistical methods in an onshore oil field using petrophysical groups

Interpretation, 2023
Reservoir facies studies are of great importance in different stages of exploration and development of hydrocarbon fields. We have aimed to generate a reservoir facies model for the Asmari Formation in an onshore oil field located in southwest Iran. Input data for electrofacies (EF) clustering algorithms are used, which include gamma-ray (GR), density
Neamatullah Mohammed Rashid, Mohammad Ali Riahi   +1 more
openaire   +1 more source

Joint Seismic and Petrophysical Inversion Constrained by Facies in a Bayesian Framework

Proceedings, 2017
Summary We present a methodology for simultaneous seismic inversion and reservoir characterization, and apply it to a Norwegian Sea gas field of Jurassic age. Our Bayesian approach allows for joint probabilistic assessment of lithology/fluids, reservoir properties (porosity and saturation) and elastic attributes (acoustic impedance and Vp/Vs), and is ...
T. Fjeldstad, P. Avseth
openaire   +1 more source

Utilizing Petrophysical Facies Model in Multi-Layer Pressure Transient Analysis: A Novel Approach

SPE/IATMI Asia Pacific Oil & Gas Conference and Exhibition, 2020
Abstract Petrophysical facies modeling plays a key role in reservoir characterization at all levels. At a well level it helps to delineate the layers on basis of certain similar rock physics characteristics, which further can be used in reservoir engineering computations that include layer wise input of properties.
Arvind Kumar, Keka Ojha, Tety Benedicta Wydiabhakti, Siddhartha Nahar   +3 more
openaire   +1 more source

Evaluation of low permeability conglomerate reservoirs based on petrophysical facies: A case study from the Triassic Baikouquan Formation, northern Mahu Sag, Junggar Basin, China

Journal of Petroleum Science and Engineering, 2022
Zhichao Yu, Zhizhang Wang, Qingping Jiang, Jie Wang, Yueli Feng, Jingrong Zheng, Bestman Adjei Baffour   +6 more
semanticscholar   +1 more source