ABSTRACT

Cement grouting has been used as an effective method to reduce the permeability of the fractures in rocks. This study discusses the mechanism how cement grout controlled water permeation through the fractures in rocks, and focuses on the effectiveness of the clogging of cement particles for closing water paths. Quantitative investigation is made through laboratory tests and numerical simulation implementing a finite difference method (FDM) and a moving particle semi-implicit (MPS) method. As a result, a model is proposed of grouting mechanism using cement particles, and the validity of the proposed model is verified by numerical simulation.

Keywords:
flow in porous media, aperture, Proportion, cement grout, Laboratory injection test, Upstream Oil & Gas, Simulation, mechanism, injection test, water path
Subjects:
Reservoir Fluid Dynamics, Flow in porous media
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2012. Korean Society for Rock Mechanics. Permission to distribute - International Society for Rock Mechanics
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