Statistical analysis of heterogeneities and their effect on build-up and drawdown tests
The objective of this work is to determine the effect of permeability and porosity spatial variations on well test pressure response. Data from three wells and synthetic data are used. Field data consist of permeability and porosity as functions of depth and pressure transient test measurements from...
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1996
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| Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09204105_v15_n1_p45_Savioli http://hdl.handle.net/20.500.12110/paper_09204105_v15_n1_p45_Savioli |
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paper:paper_09204105_v15_n1_p45_Savioli2023-06-08T15:50:08Z Statistical analysis of heterogeneities and their effect on build-up and drawdown tests Calculations Computer simulation Inverse problems Mechanical permeability Numerical analysis Porosity Pressure measurement Probability density function Statistical methods Build up tests Drawdown tests Exponential distribution functions Heterogeneities Skin factor Well test interpretation method Well testing The objective of this work is to determine the effect of permeability and porosity spatial variations on well test pressure response. Data from three wells and synthetic data are used. Field data consist of permeability and porosity as functions of depth and pressure transient test measurements from the same wells. To achieve the objective, two different tools are applied: statistical characterization of heterogeneities and a well test interpretation method. For the data: (1) permeabilities are represented by exponential distribution functions; (2) constant porosity estimates that fit measured transient pressures are almost equal to the statistical arithmetic mean, while constant permeability estimates lie between the median and the arithmetic mean; and (3) minor permeability variations cause important changes in pressure response. 1996 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09204105_v15_n1_p45_Savioli http://hdl.handle.net/20.500.12110/paper_09204105_v15_n1_p45_Savioli |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Calculations Computer simulation Inverse problems Mechanical permeability Numerical analysis Porosity Pressure measurement Probability density function Statistical methods Build up tests Drawdown tests Exponential distribution functions Heterogeneities Skin factor Well test interpretation method Well testing |
| spellingShingle |
Calculations Computer simulation Inverse problems Mechanical permeability Numerical analysis Porosity Pressure measurement Probability density function Statistical methods Build up tests Drawdown tests Exponential distribution functions Heterogeneities Skin factor Well test interpretation method Well testing Statistical analysis of heterogeneities and their effect on build-up and drawdown tests |
| topic_facet |
Calculations Computer simulation Inverse problems Mechanical permeability Numerical analysis Porosity Pressure measurement Probability density function Statistical methods Build up tests Drawdown tests Exponential distribution functions Heterogeneities Skin factor Well test interpretation method Well testing |
| description |
The objective of this work is to determine the effect of permeability and porosity spatial variations on well test pressure response. Data from three wells and synthetic data are used. Field data consist of permeability and porosity as functions of depth and pressure transient test measurements from the same wells. To achieve the objective, two different tools are applied: statistical characterization of heterogeneities and a well test interpretation method. For the data: (1) permeabilities are represented by exponential distribution functions; (2) constant porosity estimates that fit measured transient pressures are almost equal to the statistical arithmetic mean, while constant permeability estimates lie between the median and the arithmetic mean; and (3) minor permeability variations cause important changes in pressure response. |
| title |
Statistical analysis of heterogeneities and their effect on build-up and drawdown tests |
| title_short |
Statistical analysis of heterogeneities and their effect on build-up and drawdown tests |
| title_full |
Statistical analysis of heterogeneities and their effect on build-up and drawdown tests |
| title_fullStr |
Statistical analysis of heterogeneities and their effect on build-up and drawdown tests |
| title_full_unstemmed |
Statistical analysis of heterogeneities and their effect on build-up and drawdown tests |
| title_sort |
statistical analysis of heterogeneities and their effect on build-up and drawdown tests |
| publishDate |
1996 |
| url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09204105_v15_n1_p45_Savioli http://hdl.handle.net/20.500.12110/paper_09204105_v15_n1_p45_Savioli |
| _version_ |
1768545981398253568 |