Results 191 to 200 of about 7,199,039 (242)
Some of the next articles are maybe not open access.
Study on petrophysical parameters of compacted sandy‐conglomerate
International Geophysical Conference, Shenzhen, China, November 7–10, 2011, 2011Compacted sandy-conglomerates with giant-thickness develop widely in the northern steep slope of Dongying sag, which are multiepisodically superimposed vertically and distributed as a skirt-shape horizontally. Fan bodies are characterized by narrow facies distribution, rapidly changed physical properties, low permeability and porosity and complicated ...
Luo Hongmei, Liu Shuhui, Mu Xing
openaire +1 more source
Petrophysical Parameter Prediction by NMR Measurement in Tight Sandstone
82nd EAGE Annual Conference & Exhibition, 2020Summary It is difficult to evaluate the petrophysical parameters (permeability and irreducible water saturation) of tight sandstone reservoirs. This paper proposes to use a distribution function to fit the NMR T2 distribution, and then use the fitted parameters that characterize the statistical properties of pore size distribution of the reservoir to ...
M. Liu +5 more
openaire +1 more source
Petrophysical parameters estimation based on the weighted statistical method of elastic parameters
SEG Technical Program Expanded Abstracts 2013, 2013Summary Variation in petrophysical parameters are accompanied by that in elastic parameters. The relationship between the petrophysical parameters and elastic parameters can be established by the statistical rock physics model with highly nonlinear, explicit physical meaning which has considered the effect of noise.
Gui Jinyong +3 more
openaire +1 more source
Geophysics
The estimation of petrophysical parameters is key in the identification of underground reservoirs. Current petrophysical parameter estimation methods are typically constrained by the choice of particular rock-physics models, necessitating the use of ...
Yaojun Wang +5 more
semanticscholar +1 more source
The estimation of petrophysical parameters is key in the identification of underground reservoirs. Current petrophysical parameter estimation methods are typically constrained by the choice of particular rock-physics models, necessitating the use of ...
Yaojun Wang +5 more
semanticscholar +1 more source
Fast probabilistic inversion of seismic attributes for petrophysical parameters
SEG Technical Program Expanded Abstracts 2011, 2011We applied a fast probabilistic inversion technique based on neural networks to predict 3D petrophysical properties from inverted pre-stack seismic data. The objective of petrophysical inversion is to estimate the joint probability density function (PDF) of model vectors consisting of porosity, clay content, and water saturation components at each ...
Mohammad Shahraeeni +2 more
openaire +1 more source
Predicting Petrophysical Parameters in a Fuzzy Environment
2002This paper concerns with the use of fuzzy models to predict petrophysical rock properties. Fuzzy models can approximate any continuous function with any degree of accuracy by covering its graph with a finite number of fuzzy patches. Every patch is identified with a fuzzy If-Then rule which describes a local input-output relationship between the ...
Jose Finol, X. D. Jing
openaire +1 more source
Study of petrophysical parameter sensitivity from well log data
Applied Geophysics, 2007Proper analysis of petrophysical parameter sensitivity from well log data can greatly improve the ability to discriminate hydrocarbon-bearing rocks. In this paper we discuss a petrophysical analysis method for the selection and application of higher sensitivity seismic attribute parameters to improve the ability to discriminate fluid and lithology.
Yuedong Qiao, Hongwei An
openaire +1 more source
PEREGRINO ROCK TYPES: AN ALTERNATIVE FOR PETROPHYSICAL PARAMETERS DISTRIBUTION
2022THE CREATION OF ROCK TYPES IS A PROCESS THAT MAKES IT POSSIBLE TO RELATE GEOLOGICAL FACIES AND PETROPHYSICAL PROPERTIES IN OIL RESERVOIRS. ROCK TYPES MUST ALSO CORRESPOND TO THE DYNAMIC BEHAVIOR OF ROCKS, CONTROLLED BY TEXTURAL FEATURES SUCH AS POROSITY TYPE AND PORE SPACE DISTRIBUTION (PORE THROAT). ROCK TYPES INTERPRETED FROM ELECTRICAL LOG RESPONSES
LEONARDO MASUTTI +2 more
openaire +1 more source
Study on Petrophysical Parameters Testing Technology for Loose Rock
Advanced Materials Research, 2012Petrophysical parameters are not only concerned with grain size, but also with the cementation degree. Therefore, it is difficult to determine the petrophysical parameters for the loose core using traditional testing technique. This paper discussed the influence of freeze-sampled loose rock on the test result of rock porosity and permeability.
Jing Shun Qi, Ming Jie Yang, Yu Liu
openaire +1 more source
Low-Dimensional Tensor Representations for the Estimation of Petrophysical Reservoir Parameters
SPE Reservoir Simulation Conference, 2017Abstract In this work, the application of tensor methodologies for computer-assisted history matching of channelized reservoirs is explored. A tensor-based approach is used for the parameterization of petrophysical parameters to reduce the dimensionality of the parameter estimation problem. Building on the work of Afra and Gildin (2013);
Insuasty, E (author) +3 more
openaire +3 more sources