... It is clear that clay swelling phenomenon has been investigated by many researchers. Mainly, all theoretical and experimental studies have focused on the occurrence of the swelling of different smectite types such as montmorillonite during EOR-waterflooding operations. Consequently there have...

... Abstract Clay swelling has been recognized as one of the main mechanisms of formation damage during various well operations. Many researchers have extensively investigated the effects of many parameters such as pH, and salinity of water-based fluids on montmorillonite swelling behavior. However...

... complex reservoir pellet prasad SUMMARY The pore-size distribution of the shales is controlled by the clay content of the shales. The clays have extremely small grain size and high surface area. Na- Montmorillonite clays obtained from Clay Mineral Society are compacted to obtain pellets...

... NMR offers a new technique to differentiate between the surficially adsorbed water in montmorillonite from the interstitial pore water in rocks. NMR characterization suggests that the threshold level of adsorbed water in this clay is 500 mg/g of dry clay and this value is an intrinsic property...

... Abstract This paper describes the rheological behavior of Na + -montmorillonite suspensions in the presence and absence of different electrolytes (NaCl, KCl, LiCl) and a polyethylene oxide type polymer under high pressure and high temperature conditions. Shear stress - shear rate flow curves...

... media brine viscosity polymer adsorption upstream oil & gas stabilization polyacrylamide fluid dynamics cpam adsorption salinity macromolecule polymer sandpack permeability reduction spe 31 109 adsorption level montmorillonite clay drilling fluid property drilling fluid...

... montmorillonite zeta potential clay concentration lignosulfonate ferrochrome lignosulfonate shear rate interface rheology Colloidal Interaction interaction Abstract Ferrochrome lignosulfonate thinners function by adsorbing at the clay-solution interface. During this adsorption, they increase...

... engineers and geologists is the observed diagenetic conversion of montmorillonite to mixed-layered clay m~neral forms under conditions of deep sediment burial at low geothermal temperatures (~500°F). The origin of these clay mineral transformations may be related to the existence of the overpressured zones...

... on montmorillonite samples containing either clay-bound water alone or both the clay-bound and inter-aggregate pore water. Calcium- and Sodium-montmorillonite samples, provided by the Clay Minerals Society, were hydrated using two separate methods. In one set of experiments, samples were hydrated by vapors under...

... montmorillonite, the consolidation pressure is practically the same as the swelling pressure (MEADE, 1964 and several others) it is reasonable to believe that the suction is of the same order as the swelling pressure with the opposite sign. Upstream Oil & Gas montmorillonitic clay seam approximate...

... ABSTRACT. Naturally occuring alumino-silicates of the montmorillonite type are generally known under the term bentonite. Recent research and development work opened a new field of application: the use as catalysts for acid catalysed reactions. Several theories are discussed dealing...