... Microbial surfactants are 100% naturally made biosurfactants that have many identified advantages over traditional, hydrocarbon-based surfactants such as remarkably low critical micelle concentrations (very low effective dosage rates), very low toxicity and high activity at extreme temperatures...

... upstream oil & gas concentration ultra-low dose asphaltene inhibitor paraffin remediation enhanced recovery oilfield chemistry scale inhibition deposition glp-u asphaltene hydrogen asph-1 petroleum engineer application biosurfactant interaction different concentration dbsa...

... assurance oilfield chemistry asphaltene inhibition upstream oil & gas energy & fuel concentration asphaltene 1 meticulous experimental study scale inhibition precipitation waxphaltene wax remediation wax inhibition asphaltene remediation remediation of hydrates ftir spectra...

... inhibition water management oilfield chemistry asphaltene inhibition upstream oil & gas concentration scale inhibitor f-tagged inhibitor 1 inhibitor scale inhibition fluorescence measurement fluorescent molecule wax remediation wax inhibition asphaltene remediation remediation of hydrates...

... surfactant formulation concentration depicted in Fig. 2 (0.6 GPT), the viscosity of water or brine was between 1 and 2 cP. As such, it is clear that the viscosity enhancement in the boosted fluid is not a result of any structure formation (such as worm like micelles) by the surfactant itself. Even...

... Where, C crit is the critical inhibitor concentration at the critical time, mg/L; C s is the starting inhibitor concentration, mg/L; k w is the flow rate constant, Q/V, s −1 ; and t crit is the critical time when a significant and continuous decrease of laser intensity was observed, s...

... inhibition bulk precipitation concentration deposition scale remediation production chemistry upstream oil & gas halite inhibitor system pressure experiment flow line paraffin remediation wax inhibition asphaltene remediation remediation of hydrates brine tomson precipitate petroleum...

..., formation solids, and frac additives) in a controlled laboratory environment, enables the evaluation of biocides under field-relevant conditions. The bioreactors receiving either no biocide treatment or treatment with a high concentration of TTPC (50 ppm active ingredient) rapidly soured within the first...

... or even hundreds of thousands of parts per million. ( Vengosh et al., 2014 ; Alexey et al., 2018 ) Such high concentration of salt ions will shield the polymer chains, causing the polymer chains to curl and the viscosity of fluid to rapidly decrease. ( Zhu et al., 2015 ; Bao et al., 2016 ) Thus...

... chemistry scale inhibition brine inhibitor concentration area 2 induction time scale inhibitor inhibitor composition paraffin remediation scale remediation production chemistry upstream oil & gas concentration tomson saturation index protection time inhibitor performance inhibitor...

... The solution with 1 M NaCl, 0.025 M CaCl 2, and 7 mM PIPEs buffer (pH = 6.75) was used to mimic the synthetic brine with a background ionic strength ( IS ), Ca 2+ concentration and pH. Cationic solutions also contained BaCl 2 and SrCl 2 for Ba 2+ and Sr 2+ , while anionic solutions contained...

... production. Most scales can be treated by adding threshold scale inhibitors. Several crystallization and inhibition models have previously been reported to predict the minimum inhibitor concentration (MIC) needed to control the barite and calcite scale. Recently, more attentions have been paid...

... chemistry upstream oil & gas experimental product wax remediation oilfield chemistry scale inhibition chemistry hydrate remediation hydrate inhibition asphaltene inhibition deposition paraffin remediation wax inhibition asphaltene remediation remediation of hydrates concentration...

... about 11 times than that of foam without CFA particles. The interfacial dilatational viscoelastic modulus of CO 2 /foaming solution increased with CFA particle concentration increasing, indicating the interface transformed from liquid-like to solid-like. Flooding experiments in heterogeneous porous...

... remediation scale remediation production chemistry upstream oil & gas polymer adsorption viscosity water cut produced water inhibitor squeeze lifetime injection concentration polymer flooding squeeze treatment presented inhibitor adsorption field life Polymer flooding targets...

... to depressurize the reservoir and reactor vessels, drain the acid solution left in the reactor vessel and remove the reacted disk. Calcium ion concentrations in the withdrawn acid samples were determined using a PerkinElmer Optima 7000 DV Inductively Coupled Plasma-Optical Emission Spectrometer (ICP-OES...

... chemistry fluid loss control asphaltene inhibition concentration application shear stress petroleum engineer drilling fluid formulation remediation of hydrates inhibitor asphaltene remediation upstream oil & gas deposition viscosity reduction crude sample shear rate crude oil different...

... non-scaling brine components (anion water and cation water) were prepared and then mixed at a 1:1 ratio to reconstitute the water with scaling potential. The brine mixture was then either left untreated as a blank sample or dosed at multiple concentrations of the inhibitors. The mixture...

... was altered from strong liquid wetting to neutral wettability using commercially available nanofluids ( Aminnaji et al. 2015 ; Gahrooei and Ghazanfari 2017b ; Musavi et al. 2013 ). The concentration of the active solid content used was 2 wt% of the total solution. The solids themselves were nanoparticles...

... upstream oil & gas mineral distribution complex reservoir simulation hydraulic fracturing concentration artificial intelligence carbonate reservoir acid thin acid-etched channel mineral correlation length acid-etched channel acid fracturing acid transport model fracture width...