Softening of rocks matrix due to water flood: experimental study
Petrophysical properties of carbonate reservoirs are lesspredictable than that of siliciclastic reservoirs. One of themain reasons for this is the physical and chemicalinteractions of carbonate rocks with pore fluids. Suchinteractions can significantly change the elastic propertiesof the rock matrix...
| Main Authors: | , , , , |
|---|---|
| Other Authors: | |
| Format: | Conference Paper |
| Published: |
SEG
2014
|
| Online Access: | http://hdl.handle.net/20.500.11937/19672 |
| _version_ | 1848750098153996288 |
|---|---|
| author | Lebedev, Maxim Mikhaltsevitch, Vassili Carson, Michael Pervukhina, M. Gurevich, Boris |
| author2 | SEG |
| author_facet | SEG Lebedev, Maxim Mikhaltsevitch, Vassili Carson, Michael Pervukhina, M. Gurevich, Boris |
| author_sort | Lebedev, Maxim |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Petrophysical properties of carbonate reservoirs are lesspredictable than that of siliciclastic reservoirs. One of themain reasons for this is the physical and chemicalinteractions of carbonate rocks with pore fluids. Suchinteractions can significantly change the elastic propertiesof the rock matrix and grains making the applicability ofGassmann’s fluid substitution procedure debateable. Thisstudy is an attempt to understand the mechanisms of fluidrockinteractions and the influence of these interactions onelastic parameters of carbonates. We performed preciseindentation tests on a Savonnières limestone at a microscalelevel under dry, distilled water, and n-Decane saturatedconditions. Our experiments display softening of the rockmatrix after water saturation. We have found that mainlythe cement is affected by water flooding. We also observeda shear modulus reduction in Savonnières limestone in anexperiment performed at ultrasonic frequencies. One of themost important results obtained in our experimental studyis that the Gassmann fluid substitution theory might notalways be applicable to predict elastic moduli of fluidsaturated limestone. |
| first_indexed | 2025-11-14T07:31:26Z |
| format | Conference Paper |
| id | curtin-20.500.11937-19672 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T07:31:26Z |
| publishDate | 2014 |
| publisher | SEG |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-196722018-12-14T00:55:34Z Softening of rocks matrix due to water flood: experimental study Lebedev, Maxim Mikhaltsevitch, Vassili Carson, Michael Pervukhina, M. Gurevich, Boris SEG Petrophysical properties of carbonate reservoirs are lesspredictable than that of siliciclastic reservoirs. One of themain reasons for this is the physical and chemicalinteractions of carbonate rocks with pore fluids. Suchinteractions can significantly change the elastic propertiesof the rock matrix and grains making the applicability ofGassmann’s fluid substitution procedure debateable. Thisstudy is an attempt to understand the mechanisms of fluidrockinteractions and the influence of these interactions onelastic parameters of carbonates. We performed preciseindentation tests on a Savonnières limestone at a microscalelevel under dry, distilled water, and n-Decane saturatedconditions. Our experiments display softening of the rockmatrix after water saturation. We have found that mainlythe cement is affected by water flooding. We also observeda shear modulus reduction in Savonnières limestone in anexperiment performed at ultrasonic frequencies. One of themost important results obtained in our experimental studyis that the Gassmann fluid substitution theory might notalways be applicable to predict elastic moduli of fluidsaturated limestone. 2014 Conference Paper http://hdl.handle.net/20.500.11937/19672 10.1190/segam2014-0267.1 SEG restricted |
| spellingShingle | Lebedev, Maxim Mikhaltsevitch, Vassili Carson, Michael Pervukhina, M. Gurevich, Boris Softening of rocks matrix due to water flood: experimental study |
| title | Softening of rocks matrix due to water flood: experimental study |
| title_full | Softening of rocks matrix due to water flood: experimental study |
| title_fullStr | Softening of rocks matrix due to water flood: experimental study |
| title_full_unstemmed | Softening of rocks matrix due to water flood: experimental study |
| title_short | Softening of rocks matrix due to water flood: experimental study |
| title_sort | softening of rocks matrix due to water flood: experimental study |
| url | http://hdl.handle.net/20.500.11937/19672 |