... oil reservoir at the Milne Point Unit (MPU) on ANS. The pilot started injecting hydrolyzed polyacrylamide (HPAM), at a concentration of 1,750 ppm to achieve a target viscosity of 45 cP, into the two horizontal injectors in the J-pad flood pattern. Since July 2020, HPAM concentration was reduced...

... concentration, polymer molecular weight (Mw), core length, core permeability, core heterogeneity, or whether the core was preserved, native state, cleaned of oil, or cleaned and re-saturated with oil, or cleaned, re-saturated, and aged with oil. Illite was identified as the mineral that was primarily...

... -heavy oil system. The effects of different NPs concentrations and NPs types on the foam stability is systematically observed and analyzed with measuring the relationship between the height of foam column and time under nonequilibrium conditions. Then, a mathematical model is proposed to quantify...

... intervention fracturing materials high viscosity friction reducer cacl 2 viscosity reduction gpt cationic hvfr concentration elasticity reduction nacl molarity paper Introduction The oil industry has been accelerating the adoption of HVFRs as proppant carriers in hydraulic fracturing due...

... loss in the LSP-solution, which in this study correlates to the cation threshold concentration of 130 ppm. A CR < 0.35 is expected to result in substantial viscosity loss for the LSP solution. When 0.35 < CR < 1, additional risk-analysis of polymer viscosity loss in the LSP solution...

... sand sonication concentration united states government production chemistry bitumen flow assurance viscosity ngr bitumen ultrasound sonication effect crude oil asphaltene concentration petroleum science journal Introduction Bitumen is an asphaltic, dense and viscous hydrocarbon...

... government upstream oil & gas asia government geologist waterflooding enhanced recovery surfactant nanoemulsion concentration ift dsw snp effect carbonate reservoir enhanced oil recovery cationic surfactant nanoparticle application iraq government oil recovery wettability alteration...

... for in-situ foam generation. Additionally, increasing surfactant concentration encouraged more effective mobility control due to the formation of higher stability foam and, consequently, improves the sweep efficiency and oil displacement process. In term of CO 2 storage, performing a single-cyle SAG led...

... Gemini surfactant and graphene nanoparticles were added with concentrations of 0.5%. The rheological and filtration properties were determined at room temperature. The shale inhibition tests were performed to analyze the swelling inhibition properties of DFs. The surface-modified nanoparticles along...

... monitoring. A sulfonated polymer, acrylamido tertiary-butyl sulfonate (ATBS), was utilized and polymer solutions at different concentrations were prepared in 20 wt% brine. Coreflooding integrated with computed tomography (CT) scanning was used to generate 3D images during polymer flooding in carbonate...

... that dispersing the asphaltene clusters too small may lead to high diffusional rate within the low flow shear regime and build up more deposit in depositional dominant test methods. Variation in treatment concentration (especially overtreatment) of an effective asphaltene inhibitor can result in lowering...

... Abstract This study was performed to examine the efficacy of corn husks (CH) fine particles as potential natural demulsifier for breaking crude oil emulsion. Stable emulsions were formed using distilled water/crude oil and oil-water ratio was 4:6. The concentrations of CH particles ranging from...

...) investigate the impact of thinly-bedded sandstone on the fracture conductivity, and 3) determine the minimum required proppant concentration (the cutoff concentration for interpreting the effective fracture half-length in numerical hydraulic fracture model results). The laboratory testing was designed...

... to intermediate-wet with the addition of a low concentration of the surfactant. Coreflooding data proved conclusively that the addition of 0.2wt% of the surfactant to the LSW flooding yielded an additional 9.11% of oil recovery. The comprehensive experimental work followed in this study including contact angle...

... responsibility complex reservoir bitumen petroleum play type enhanced recovery concentration oil sand hydrogen concentration reaction mole fraction variation experiment gasification fraction north america government sustainable development hydrogen hydrogen generation oxygen heavy oil play...

... injection mechanism reduction urea saturation reaction kinetic urea hydrolysis permeability in-situ co 2 upstream oil & gas reservoir simulation co 2 production control concentration eor ammonia urea reaction Introduction While the injection of CO 2 has proven to possess great...

... remediation remediation of hydrates remedial agent scale remediation oilfield chemistry scale inhibition concentration application matrix petroleum engineer chemical remedial agent active chemical compound chemical tool compound tubing string perforation wellbore scenario chemical compound...

... used in geothermal reservoirs. The appropriate tracer type is selected based on various parameters such as reservoir conditions, economics, type of measurement devices available, minimum detection concentration, environmentally friendly, and stability at reservoir conditions. Once the type of tracer...

... complex reservoir hydraulic fracturing radiation contaminant tracer cased hole cross-dipole data production logging upstream oil & gas fracture height production control reservoir surveillance tracer test analysis concentration multistage hydraulic fracturing hydraulic fracture geometry...

... by switchable diamine (DTTM) surfactant; however, DTTM surfactant showed poorer foamability performance. In the presence of crude oil, B-1235 surfactant was able to maintain the foam properties, compared to other tested surfactants. The optimum concentrations for B-1235 in the absence and presence of crude oil...