Sand failure: effect of biocide on the geomechanical properties of outcrop carbonate rock under static conditions.

Wuyep, Elizabeth; Oluyemi, Gbenga; Yates, Kyari; Akisanya, Alfred

Abstract

The effects of chemical interaction of a biocide with formation rocks on the rock geomechanical strength were examined. A combination of analytical tests (Scanning Electron Microscopy/Energy-Dispersive X-Ray Analysis-SEM/EDX, X-Ray Powder Diffraction-XRDP and Particle Size Distribution) and uniaxial compressive test was used in this study. The particle size distribution showed an increase in D50 with poor sorting for the chemically treated carbonate core sample. The XRPD shows evidence of altered minerals in the chemically treated samples. It was observed that the interaction led to precipitation of new materials that clogged the pore space of the rock samples leading to about 150% increase in compressive strength of the carbonate following treatment with the biocide. The results give more insight into the limitations of the existing sand production prediction models with respect to the effect of oilfield chemicals on the strength of the reservoir rocks.

Citation

WUYEP, E., OLUYEMI, G., YATES, K. and AKISANYA, A. 2019. Sand failure: effect of biocide on the geomechanical properties of outcrop carbonate rock under static conditions. In Kallel A., Erguler, Z.A., Cui, Z.-D., Karrech, A., Karakus, M., Kulatilake, P. and Shukla, S.K. (eds.) Recent advances in geo-environmental engineering, geomechanics and geotechnics, and geohazards: proceedings of the 1st Springer conference of the Arabian Journal of Geosciences (CAJG-1), 12-15 November 2018, Hammamet, Tunisia. Advances in science, technology and innovation: IEREK interdisciplinary series for sustainable development. Cham: Springer [online], pages 183-185. Available from: https://doi.org/10.1007/978-3-030-01665-4_43

• Conference Name: 1st Springer conference of the Arabian Journal of Geosciences (CAJG-1)
• Conference Location: Hammamet, Tunisia
• Start Date: Nov 12, 2018
• End Date: Nov 15, 2018
• Acceptance Date: Jun 1, 2018
• Online Publication Date: Dec 31, 2018
• Publication Date: Dec 31, 2019
• Deposit Date: Jun 13, 2019
• Publicly Available Date: Jun 13, 2019
• Publisher: Springer
• Pages: 183-185
• Series Title: Advances in science, technology and innovation: IEREK interdisciplinary series for sustainable development
• Series ISSN: 2522-8714
• Book Title: Recent advances in geo-environmental engineering, geomechanics and geotechnics, and geohazards: proceedings of the 1st Springer conference of the Arabian Journal of Geosciences (CAJG-1), 12-15 November 2018, Hammamet, Tunisia
• ISBN: 9783030016647
• DOI: https://doi.org/10.1007/978-3-030-01665-4_43
• Keywords: Chemical interaction; Glutaraldehyde; Carbonate; Uniaxial compressive strength; Reservoir rock
• Public URL: https://rgu-repository.worktribe.com/output/245347
• Related Public URLs: https://rgu-repository.worktribe.com/output/978643