... Recently, the effect of clay minerals in improving oil recovery duringLSWF has attracted much more attention. Fjelde et al. (2014) found that the clay content played a vital role in LSWF, and they conclude that not only the concentration of the claybut also itsdistribution affectedLSWF...

... such as clay minerals on NMR response using pore-scale NMR numerical simulations. We also quantify the influence of the aforementioned parameters on the NMR-based evaluation of porous media. We used finite volume method to numerically solve Bloch equations ( Bloch 1946 ) and simulated magnetization decay...

... is an important challenge faced by the industry for reservoir evaluation. In particular, characterizing the pore size distribution (PSD) of tight rocks is challenging due to their small pore size and presence of clay minerals. In this paper, we develope a model to characterize PSD of shales using water adsorption...

... pores in shale matrix are mainly associated with clay minerals and organic matter. Thus, comprehending the controls of clays and organic matter on the pore-size distribution is critical to understanding the shale pore network. Historically mercury intrusion techniques are used for pore-size analysis...

... calculations of porosity and irreducible water saturation. However, these models do not explicitly include the role played by rock structure, spatial fluid distribution in the pore space, wettability, or clay mineral distribution on permeability. We present a pore-scale approach to investigate the influence...

... surface. In clay minerals, this film of bound water is extremely important because of the expansivity in clay minerals compared to sand grains within reservoir sands. Another approach to this problem is the Dual Water Model ( Clavier et al, 1984 ) which describes the reservoir clay as consisting...

... log analysis resistivity water saturation exponent shale sandstone hpv porosity dual-water model well logging effective porosity total porosity reservoir shaly sand clay mineral evaluation core measurement conductivity upstream oil & gas simandoux core porosity...

... coefficient of 0.92 for the same data set. The estimate can also be made from mineralogy or lithology data, in which each mineral or lithologic fraction is assumed to have a fairly constant specific surface area. Examination of the data suggests that only about 10% of the total clay mineral surface area...

... concentration upstream oil & gas application spe 18120 infonnation clay mineral ftir analysis data quality calculation mineral analysis fourier transform infrared spectroscopy particle size mineral log analysis quantitative mineralogy mineralogy mineralogical infonnation...

... the % weight of non clay minerals present. The second, after extraction of the present. The second, after extraction of the clays by sedimentation, furnishes the relative proportions of each of the type of clays present; proportions of each of the type of clays present; but, without giving the % weight...

... society of petroleum engineers test run potassium reservoir characterization upstream oil & gas clay mineral dispersion counterion drilling fluids and materials performance test journal of petroleum technology drilling operation drilling fluid property polymer spe 1 4 24...

... of the clays by EDS removes the uncertainty of the clay mineral characterization. The ultimate objective of this work is to develop a fundamental understanding of the adhesion of oil to DESCRIPTION OF EQUIPMENT AND PROCEDURES the surface of sedimentary rocks which results in high residual oil saturations...

..., and depth of focus far exceeding petrographic thin section capabilities. Several recent papers have described and discussed the importance of dispersed clays in sandstones. This paper defines "dispersed" clay as silicate clay minerals (e.g., kaolinite, illite, smectite, chlorite) developed within the rock...

... American Institute of Mining, Metallurgical, and Petroleum Engineers, Inc. Abstract The clay mineral sepiolite has been under investigation since 1972 by our laboratories for possible use in drilling fluids. This paper reviews the work done on this clay mineral in an effort to obtain...

... of potential aqueous stimulation fluids with formation minerals. The purpose of this paper is to report on the use of the Scanning Electron Microscope (SEM) to evaluate the effect of pH of aqueous base fluids on clay minerals associated with the pore space. Included are SEM photomicrographs showing sample...

...), to protoquartzites (clean), with varying mineral constituents. Porosities and permeabilities also vary greatly due to the petrography and mineralogy of the sandstone. Interstitial clay minerals constitute from less than 5 to more than 25 percent ot" the reservoir rock. Other important interstitial constituents...

... Abstract The productivity of some oil sands may be reduced if invaded by fresh water during drilling, completion or workover operations. The most common cause of formation damage is swelling clay minerals in the sand. Damage is also caused by movement of loose particles or increased water...