... scale inhibitor adsorption desorption profile Upstream Oil & Gas precipitation new phosponate-based scale inhibitor khormali remediation of hydrates inhibitor core plug paraffin remediation Hydrate Remediation hydrate inhibition asphaltene inhibition concentration formation damage...

... test with low optimum concentration. scale remediation Production Chemistry Upstream Oil & Gas wax remediation wax inhibition asphaltene remediation flow assurance oilfield chemistry scale inhibition precipitation inhibitor sample remediation of hydrates concentration paraffin...

... their interpretations thanks to data coming from separate independent sources. mud logging / surface measurements Reservoir Characterization well logging log analysis precipitation heavy oil type drilling data acquisition progressive increase drilling measurement Upstream Oil & Gas advanced surface...

... drilling fluid formulation precipitation formation damage treatment fluid fluid compatibility test downhole intervention acidizing micro-emulsion treatment technique reservoir characterization compatibility test remove sandstone formation damage precipitate reaction society of petroleum...

... addresses results of extensive lab work conducted to optimize the treatment recipes. scale remediation Production Chemistry wax remediation oilfield chemistry Hydrate Remediation hydrate inhibition Upstream Oil & Gas precipitation scale inhibition sand production asphaltene inhibition...

.... The static tests were also successful, with no precipitation formed. Regained core permeability was in the range of 77 to 89%. Finally, retained proppant pack conductivity result of 56% indicated good cleanup properties for NF seawater. fracturing materials Upstream Oil & Gas concentration scale...

... successful when the proper scale inhibitor and optimum concentration were used, while the static tests did not form any precipitation. Thermal aging resulted in a color change for all tests, as expected, and the performance of the thermal-aged scale inhibitor was evaluated. This paper provides insight...

... of low salinity to improve recovery. Calcite dissolution and indirectly Anhydrite Precipitation is being accelerated and controlled by the CO2 within the residual oil. The study indicates strong bond between pH and CO2 and their effect on oil recovery while preforming LSWF. Enhancements on the injected...

... Abstract When carbonate in sandstone rocks exposed to seawater based acids, calcium sulfate will precipitate. Recently, chelating agents/seawater solutions were introduced to prevent scaling problem in sandstone formations. The objective of this study is to introduce DTPA (diethylene tri-amine...

... the sandstone samples. Non-destructive tests were conducted to evaluate the effect of injected solution volume on the rock integrity. The samples were scanned using Computed Tomography (CT) to detect any precipitations after using the seawater based chelating agents. The results showed that DTPA and EDTA...

... Abstract Water injection is commonly used in oil fields for pressure support and productivity enhancement. Injection water, if incompatible with formation water, can induce scale precipitation and impose a significant threat to economic and efficient field operation. Reliable scale prediction...

... of different concentrations (i.e. 0.02, 0.03, 0.05 wt%) were dispersed in seawater, where stability tests showed nanoparticles precipitations in less than an hour. This problem, of nanoparticles precipitation in seawater, was investigated by studying the performance of the Zeolite nanoparticles in each...

... Upstream Oil & Gas gel loading magnesium concentration composition fluid stability sulfate calcium stability seawater fracturing materials waterflooding precipitation viscosity hydration formation water fluid system Cmhpg Introduction Effective stimulation of oil and gas wells...

... of large quantities of chelating agent chemicals and consequently reduces the cost. Upstream Oil & Gas seawater flooding crude oil core sample waterflooding concentration experiment seawater precipitation zeta potential core flooding experiment Oil Recovery enhanced recovery rock...

... with reservoir fluids, was free from precipitation or emulsion. On the contrary, mixing the chelating agent with the DIF carrier brine resulted in severe precipitation of insoluble permanently damaging byproducts. The laboratory study also observed that pH has a direct proportional relationship with the amount...

... removal process facility will be discussed in this paper. wax remediation wax inhibition asphaltene remediation asphaltene inhibition paraffin remediation deposition DL formation brine Hydrate Remediation hydrate inhibition Upstream Oil & Gas calcite precipitation gypsum producer...

... employed the ability of chelating agent (High pH EDTA, HEDTA) to sequester metal ions in solution and prevent also any solid precipitates in the reservoir. The widely available sea water will be used without any desulphonation processes since there will be no tendency to interact with the formation brine...

... emulsified acid and this led to corrective changes to the on-site mixing process. These and many other operational adjustments enabled bridging the gap between laboratory design and field implementation, thereby ensuring a successful acid fracturing treatment. Upstream Oil & Gas precipitation...

... pump were discovered to be totally blocked with solid precipitation, which had been the cause of frequent pump trips and decreasing production rate. Using parts from the third failed ESP, a chelating-agent-based treatment fluid was designed to dissolve the scale buildup in the stuck ESP shaft without...

... into a brine-rock system induces chemo-mechanical mechanisms, which permanently change the rock frame. The injection of CO 2 into brine-saturated-sandstones induces salt precipitation primarily at grain contacts and/or within small pore throats. Salt precipitation decreases permeability and increases P- and S...