Complex fracture networks with different scales are created and hydrocarbon flowing in the matrix demonstrates a Pre-Darcy characteristic due to a strong interaction of rock and fluids in nanoscale pores. The modeling of complex fracture networks and a Pre-Darcy effect is required in numerical ...
Residual trapping means that CO2 is stuck in the pores of the rock, and cannot flow even if there is an opening, because of the surface tension between CO2 and water. Chemical trapping Chemical trapping occurs when CO2 is absorbed onto organic matter present in coal and shale (adsorption trap...
significantly less than in conventional reservoirs. The crude oil is often adsorbed or entrapped by tiny pores andmicro channels. The oil production is more difficult in tight versions of these rocks. Here, "tight" refers to a rock's natural inability to let oil flow because of poor reservoir...
But the case is a little bit different for faults. The detection of faults in the reservoir is usually performed through geological and seismic studies. The fault itself may be sealing or leaky. The sealing fault completely obstructs the lateral flow of the fluids and may work as a part of...
The critical pump rate increases as natural fracture length increases and rock elastic modulus decreases. It is also found that natural fracture surface is rough and not fitting, so when hydraulic fractures reopen existing natural fractures, the release of the original shear stress in the fracture ...
Carbon capture and storage (CCS) is a key technology to mitigate the environmental impact of carbon dioxide (CO2) emissions. An understanding of the potential trapping and storage mechanisms is required to provide confidence in safe and secure CO2 geolog
Little BJ, Lee JS (2007) Microbiologically influenced corrosion. John Wiley & Sons, NJ Google Scholar Lysnes K, Bødtker G, Torsvik T, Bjørnestad EØ, Sunde E (2009) Microbial response to reinjection of produced water in an oil reservoir. Appl Microbiol Biotechnol 83:1143–1157 ...
thus allowing the rock to be “scrubbed” clean. Often, the water behind the surfactant is made viscous by addition of apolymerin order to prevent the water from breaking through and bypassing the surfactant. Surfactant flooding generally works well in noncarbonaterock, but the surfactant material...
To avoid excessive consumption of acid in contact with the pipeline of the experimental instrument, which thereby affects the reaction rate of the acid rock, the concentration of the corrosion inhibitor in the experiment was increased. The iron ion stabilizer had little effect on the acid-rock ...
In general, the Z value calculated using the EI330-GOM material is a little greater than the one calculated using the Yang & Aplin model (Fig. 13). This is because, for the vertical effective stress below 30 MPa, the Yang & Aplin model yields a greater mudrock permeability change during...