Abstract Diagenesis is the main reason for tight reservoir lithology, complex pore-throat structure, strong heterogeneity, and variable occurrence distribution characteristics of fluid in pore-throat, which directly restricts Chang 8 oil layer group Ordos Basin. Exploration development. Based on analysis a large number cores thin slices, through application scanning electron microscopy, high-pr...

Three activated carbons are synthesized in a rotary reactor at different activation times. The adsorption isotherms of the samples are measured The pore size distribution of the samples is determined using combined Saito and Foley method, BJH method. An average potential function has been determined inside the cylindrical pores. The effect of activation time on the pore size distribution sample...

The lower limit of reservoir physical properties is an important parameter for identifying reservoirs and determining effective thickness in reserves evaluation, also basis selecting perforated test intervals oilfield exploration development. There are many methods to determine the properties, minimum flow pore throat radius method one commonly used methods. uses 0.1μm as pore-throat radius, th...

Bamboo-structured carbon nanotubes are grown on Co-Mo/MCM-41 catalyst in the temperature range of 873-973 K by thermal chemical vapor deposition of acetylene. This study shows that the purified carbon nanotubes have open tips and the metals of the catalyst are not encapsulated. Thus, the bamboo-structure seems to grow from the base. Pore size distribution of the product is quite narrow and ...

Flow unit and reservoir rock type identification in carbonates are difficult due to the intricacy of pore networks caused by facies changes diagenetic processes. On other hand, these classifications necessary for understanding a predicting its production performance face any activity. The current study focuses on flow classification Mishrif Iraq's southeast is based data from five wells that pe...

Abstract A significant behavior of carbonate reservoirs is poor correlation between porosity and permeability. With the same porosity, permeability can vary by three orders magnitude or more. An accurate estimation for reservoir has been a challenge many years. The aim this study was to establish relationships pore throat, This indicates that throat radius corresponding mercury saturation 20% (...

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...

Tight reservoirs hold a vast natural gas in Ordos Basin, and efficient development of these resources can offset the energy shortage. Due to low-porosity low-permeability, hydraulic fracturing becomes necessary tap its resources. After fracturing, large amount fluid fills pore space near fracture, which will influence production. This study focused on water occurrence tight influencing factors....