Effects of Cementation on Elastic Property and Permeability of Reservoir Rocks
Zhao Jianpeng
Sun Jianmeng
Jiang Liming
Chen Hui
Yan Guoliang
Abstract：In order to investigate the effects of cementation on elastic properties and permeability of reservoir rocks,a 3D digital model of core was constructed.Then this model was simulated using the process-based method and finite element lattice Boltz-mann method.The results show that cementation influences the rock stiffness and pore connectivity,controlling elastic modu-lus and rock permeability,respectively.Given same porosity,rocks with cement occurring in the pore throats have high elastic modulus and low permeability;whereas rocks with cement precipitating within pores have low elastic modulus and high permea-bility.Among the simulated three cementation scenarios,the rock elastic modulus increases with increasing amount of cement, and there is a linear relationship between them.Rock permeability,however,deceases with increasing amount of cement,be-cause permeability is more sensitive to where cements precipitate than rock elastic parameters.
Keywords：3D digital corecementation modeelastic propertyfinite element methodpercolation propertylattice Boltzmann methodpetroleum geologycore sample
Publication Date：2014-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：6( 769-774 )