Applying an integrated methodology, including petrography, mercury injection capillary pressure, laboratory nuclear magnetic resonance and X-ray computed tomography, on continental spring carbonate reservoir analogue samples is a prerequisite to understand plug scale porosity permeability heterogeneities. Depending the dominant pore type in sample, orientation distribution of pores, network con...

The Jurassic Dongyuemiao Member is the most promising target for lacustrine shale gas exploration in Sichuan Basin. By integrating SEM, NMR, LTNA, and MICP experiments, other basic measurements, nanoscale pore category structure corresponding controlling factors of Eastern Basin are studied. results denote that organic pores comprise primary within plant debris secondary bitumen. Inorganic comp...

To explore the possibility of providing additional reinforcement to bio-cemented sand through fiber inclusions, a series sand-fiber mixtures were prepared by mixing with three types fibers (polypropylene fiber, basalt and carbon fiber) at different contents (0, 0.1, 0.2, 0.3, 0.4, 0.5, 0.6 0.8% volume sand). Each mixture was subjected two cycles controlled microbial-induced calcite precipitatio...

Microbially induced carbonate precipitation (MICP) is a new method used in recent years to improve the soil. However, this still faces challenges related low grouting reinforcement strength and efficiency. In study, both bio-cement infiltration mixed for sand foundation were proposed, physical model tests conducted investigate mechanical properties of treated with method. The results showed tha...

Microbially induced calcium carbonate precipitation (MICP) has attracted great attention recently for its ability to improve the mechanical properties of soils. Calcium (CaCO3) precipitates that formed at contact points and on surface particles or in pore space soil matrixes could increase bonding strength, friction, interlocking resistances due enhancement interparticle bonds, particle roughne...

Microbially induced calcite precipitation (MICP) is an environmentally conscious ground-improvement method that can enhance the engineering properties of granular soils through calcium carbonate (CaCO3) on soil particle surfaces and contacts. Although numerous studies have shown ability biocementation to improve liquefaction resistance loose sands, effects light cementation levels undrained cyc...

Nowadays, a large amount of municipal solid waste incineration bottom ash (IBA) is produced from plants; therefore, it still challenge for IBA management. To investigate the potential microbially-induced carbonate precipitation (MICP) treatment, harmless biobinder was prepared by using biosolutions with different bacterial concentrations. A series tests were carried out on sample treated biosol...

Bacterial chemical reactions, such as urea hydrolysis can induce calcium carbonate precipitation. The induced production of formed by microorganisms has been widely used in environmental and engineering applications. present study aimed to isolate, identify optimize growth conditions urease positive bacteria from rich soil Gaza Strip. isolates, which tolerated ≥10% concentration, were select...