... of this study is to introduce nanosilica to reinforce PAtBA crosslinked by polyethyleneimine (PEI) and chromium Acetate (CrAc 3 ) for low and high temperature conformance control applications. In this study, different ratios of polymer to crosslinker were investigated to choose the optimum combination...

... Abstract Placement of highly reactive stimulation fluid based on hydrochloric acid (HCl) into high temperature reservoirs or long pay intervals can be challenging and requires proper techniques to limit near-wellbore (NWB) spending, deconsolidation, and to extend the depth of fluid penetration...

... with inexpensive calcium brines and thus necessitate sodium bromide or formate brines depending on the density requirements. Based on the extensive laboratory study, it can be concluded that the new fluid system outperforms conventional VES gravel pack carrier fluids at high temperatures while retaining...

... Abstract The Mexico South Region produces more than 520, 000 bopdl from mature carbonate reservoirs. These reservoirs have widely varying reservoir pressures, presence of natural fractures and temperatures up to 350 degF. The extremely high temperatures makes even more challenging...

... Abstract The present work investigates the impact of high temperature on fines migration and is useful for both sandstone and shale formations at high temperatures. The results show subsequent loss of permeability in clay-containing rocks such as sandstone. Three types of clays are present...

... drilling fluid property formation brine drilling fluid selection and formulation Upstream Oil & Gas formate brine solution citric acid room temperature formic acid high temperature ed x-ray spectra formate brine precipitate backscattered electron image drilling fluid chemistry drilling...

... amounts of special, inexpensive corrosion inhibitors. The mild fluids also are highly retarded so high-temperature carbonates can be stimulated and sensitive sandstone formations are not damaged. The fluids have reduced health, safety, and environmental (HSE) footprints because: (1) they are much less...

... Abstract During the course of normal perforating operations, special attention is paid to minimizing debris in order to prevent perforation tunnel plugging or other forms of formation damage. However, operational constraints, especially in high-temperature offshore wells, may result in freshly...

... drilling fluid property iron solubility permeability clay mineral completion fluid design criteria society of petroleum engineers drilling fluids and materials hazy mod-floc nabr znbr 2 drilling fluid chemistry inhibitor water analysis upstream oil & gas high temperature drilling fluid...

... Abstract This paper presents the results of laboratory tests on a unique combination of polymer, stabilizer and crosslinking chemicals that provide the extended thermal stability necessary for high temperature massive hydraulic fracturing. This fluid system was designed to improve...