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Keywords: acid concentration
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Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 21–23, 2021
Paper Number: SPE-206363-MS
... system acid acid solution sapra system riser corrosion h2s management acid concentration wormhole test acid solution dissolution sapra reaction rate petroleum engineer coupon Introduction The purpose of acid stimulation of carbonate formations is to increase production. The essential...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 26–29, 2020
Paper Number: SPE-201465-MS
... )                                                                           f r a c t u r e   f a c e s where n is the outward normal vector at boundaries, c 1 i n j is the injected acid concentration (i.e. H + molar concentration) at the inlet and R(ci) is the reaction rate at the fracture faces. At the inlet, the acid fluid...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 27–29, 2014
Paper Number: SPE-170943-MS
... the laboratory data among all models. Constants in Nierode-Kruk's model that depend on rock embedment strength and dissolved rock equivalent conductivity are reported. Effects of different acid concentrations on permeability and conductivity were discussed in detail. Creep testing was performed to determine time...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 29–October 2, 2002
Paper Number: SPE-77768-MS
... treatment reservoir wax remediation field application enhanced recovery wax inhibition phosphorus concentration spe 77768 hydrate inhibition production chemistry paraffin remediation scale inhibition oil production novel emulsified scale inhibitor system acid concentration squeeze treatment...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 30–October 3, 2001
Paper Number: SPE-71693-MS
... hydraulic fracturing drilling fluids and materials concentration emulsified acid drilling fluid chemistry surfactant application acidizing acid system emulsified acid-based system in-situ gelled acid stimulation drilling fluid property acid concentration iron concentration emulsion drilling...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 1–4, 2000
Paper Number: SPE-63183-MS
... fracturing standard deviation acid concentration complex reservoir surface roughness fracture surface fracture experiment acid upstream oil & gas modeling fracture wall acid transport naturally-fractured carbonate dimension Introduction Matrix acidizing is a stimulation method...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 3–6, 1999
Paper Number: SPE-56532-MS
... obtained has been utilized to develop a new correlation to predict the diffusivity coefficient of hydrochloric acid, which accounts for the effect of temperature, acid concentration, and rock type with which the acid reacts. conway diffusion coefficient fracture reaction rate comparative study...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 25–28, 1994
Paper Number: SPE-28547-MS
... of temperature and acid concentration have also been studied. Analysis of the results shows that the optimum injection rate depends greatly on the rock and reservoir conditions and can be determined from experiments. Introduction To improve the matrix stimulation efficiency of carbonate reservoirs...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 3–6, 1993
Paper Number: SPE-26578-MS
... carbonate formation limestone damkohler number acid injection rate pore acid concentration injection rate reaction rate carbonate reservoir upstream oil & gas wormhole tip optimum rate flux spe 26578 wormhole breakthrough acid flux complex reservoir Society of Petroleum Engineers SPE...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 21–24, 1980
Paper Number: SPE-9241-MS
... testing up to temperatures of 350 deg. F (176.7 deg. C). Now, the acid gel having hydrochloric acid concentrations of 1/4% to 28% and a pH less than one can be crosslinked for effective retardation. This new crosslinked acid has high viscosity with shear stability providing perfect support for proppants...

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