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Unconfined Compressive Strength and Deformation Modulus Relationship for Two Carbonate Rock Formations
Due to increased oil demand worldwide, a new trend has been emerging in the offshore oil extraction industry in the Gulf Region. This new approach applies the construction of durable platforms in the form of reclaimed offshore islands. This trend was proven to be feasible solution due to the shallow water depths at oil field locations combined with minor maintenance requirements compared to traditional offshore jacket drilling platforms. However, this new trend came with its own set of concerns, one of which was the estimation of settlement of these platforms under the applied loads. The accuracy of estimating the settlement was therefore studied carefully including the determination of the deformation modulus for the foundation layers including the UCS-Ei relationship. This paper focuses on quantifying and analyzing the variability of two major carbonate rock calcarenite and calcisiltitie formations through the geotechnical laboratory testing results. The statistical analysis of the testing results indicated that a 2nd degree polynomial relationship can be developed to link the UCS with Ei. The proposed relationship in this paper should provide a more accurate tool for assessment of the Ei value compared to the mostly linear correlations currently reported in literature for these local formations.
Unconfined Compressive Strength and Deformation Modulus Relationship for Two Carbonate Rock Formations
Due to increased oil demand worldwide, a new trend has been emerging in the offshore oil extraction industry in the Gulf Region. This new approach applies the construction of durable platforms in the form of reclaimed offshore islands. This trend was proven to be feasible solution due to the shallow water depths at oil field locations combined with minor maintenance requirements compared to traditional offshore jacket drilling platforms. However, this new trend came with its own set of concerns, one of which was the estimation of settlement of these platforms under the applied loads. The accuracy of estimating the settlement was therefore studied carefully including the determination of the deformation modulus for the foundation layers including the UCS-Ei relationship. This paper focuses on quantifying and analyzing the variability of two major carbonate rock calcarenite and calcisiltitie formations through the geotechnical laboratory testing results. The statistical analysis of the testing results indicated that a 2nd degree polynomial relationship can be developed to link the UCS with Ei. The proposed relationship in this paper should provide a more accurate tool for assessment of the Ei value compared to the mostly linear correlations currently reported in literature for these local formations.
Unconfined Compressive Strength and Deformation Modulus Relationship for Two Carbonate Rock Formations
Sarhan, Hazem (author) / Askar, Mohamed (author)
IFCEE 2015 ; 2015 ; San Antonio, Texas
IFCEE 2015 ; 1956-1963
2015-03-17
Conference paper
Electronic Resource
English
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