Determination of Porosity and T2 Cut-Off using Nuclear Magnetic Resonance (NMR) Machine in Low Resistivity Low Contrast (LRLC) Reservoir
Conventional logs are very effective in determining the petrophysical properties for normal reservoirs but in low resistivity pay reservoir it is really hard to get an accurate results. Nuclear Magnetic Resonance (NMR) is a common tool utilized in core analysis. NMR can reveal important informati...
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my-utp-utpedia.34712017-01-25T09:40:23Z http://utpedia.utp.edu.my/3471/ Determination of Porosity and T2 Cut-Off using Nuclear Magnetic Resonance (NMR) Machine in Low Resistivity Low Contrast (LRLC) Reservoir Mohd Yusof, Lydia Conventional logs are very effective in determining the petrophysical properties for normal reservoirs but in low resistivity pay reservoir it is really hard to get an accurate results. Nuclear Magnetic Resonance (NMR) is a common tool utilized in core analysis. NMR can reveal important information about pore structure, fluid configuration and wettability. Since NMR works as a lithology-independent tool, thus it is very useful in the low resistivity pay reservoirs to help determine the petrophysical properties. The main objectives of this study are to determine the NMR porosity from transverse relaxation (T2) distribution curve and also to compute the T2 cut-off value and hence distinguishing the clay bound water, capillary bound water and free fluids. In the analysis of NMR data, several aspects of NMR technique have been used such as are under T2 distribution to compute porosity and also determining the intersection of fully saturated and desaturated at 100 psi curves to estimate the T2 cut-off. Analysis of the NMR data has helped to identify the porosity, T2 cut-off, distinguish between bound and free water and also helps in finding the amount of clay bound water. 2012-07 Thesis NonPeerReviewed application/pdf en http://utpedia.utp.edu.my/3471/1/Lydia_bt_Mohd_Yusof.pdf Mohd Yusof, Lydia (2012) Determination of Porosity and T2 Cut-Off using Nuclear Magnetic Resonance (NMR) Machine in Low Resistivity Low Contrast (LRLC) Reservoir. Masters thesis, Universiti Teknologi PETRONAS. |
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Conventional logs are very effective in determining the petrophysical
properties for normal reservoirs but in low resistivity pay reservoir it is really hard to
get an accurate results. Nuclear Magnetic Resonance (NMR) is a common tool
utilized in core analysis. NMR can reveal important information about pore structure,
fluid configuration and wettability. Since NMR works as a lithology-independent
tool, thus it is very useful in the low resistivity pay reservoirs to help determine the
petrophysical properties.
The main objectives of this study are to determine the NMR porosity from
transverse relaxation (T2) distribution curve and also to compute the T2 cut-off value
and hence distinguishing the clay bound water, capillary bound water and free fluids.
In the analysis of NMR data, several aspects of NMR technique have been
used such as are under T2 distribution to compute porosity and also determining the
intersection of fully saturated and desaturated at 100 psi curves to estimate the T2
cut-off. Analysis of the NMR data has helped to identify the porosity, T2 cut-off,
distinguish between bound and free water and also helps in finding the amount of
clay bound water.
|
| format |
Thesis |
| author |
Mohd Yusof, Lydia |
| spellingShingle |
Mohd Yusof, Lydia Determination of Porosity and T2 Cut-Off using Nuclear Magnetic Resonance (NMR) Machine in Low Resistivity Low Contrast (LRLC) Reservoir |
| author_facet |
Mohd Yusof, Lydia |
| author_sort |
Mohd Yusof, Lydia |
| title |
Determination of Porosity and T2 Cut-Off
using Nuclear Magnetic Resonance (NMR) Machine
in Low Resistivity Low Contrast (LRLC) Reservoir |
| title_short |
Determination of Porosity and T2 Cut-Off
using Nuclear Magnetic Resonance (NMR) Machine
in Low Resistivity Low Contrast (LRLC) Reservoir |
| title_full |
Determination of Porosity and T2 Cut-Off
using Nuclear Magnetic Resonance (NMR) Machine
in Low Resistivity Low Contrast (LRLC) Reservoir |
| title_fullStr |
Determination of Porosity and T2 Cut-Off
using Nuclear Magnetic Resonance (NMR) Machine
in Low Resistivity Low Contrast (LRLC) Reservoir |
| title_full_unstemmed |
Determination of Porosity and T2 Cut-Off
using Nuclear Magnetic Resonance (NMR) Machine
in Low Resistivity Low Contrast (LRLC) Reservoir |
| title_sort |
determination of porosity and t2 cut-off
using nuclear magnetic resonance (nmr) machine
in low resistivity low contrast (lrlc) reservoir |
| publishDate |
2012 |
| url |
http://utpedia.utp.edu.my/3471/1/Lydia_bt_Mohd_Yusof.pdf http://utpedia.utp.edu.my/3471/ |
| _version_ |
1739831044734976000 |
| score |
13.211869 |