بررسي آزمايشگاهي و بهينه سازي استفاده همزمان از نانوذرات دي اكسيد تيتانيوم (TiO2) و سورفكتانت SDS در بهبود بازيافت نفت از مخازن نفتي

Experimental Investigation and optimization of the use of nanoparticles of titanium dioxide (TiO2) and surfactants SDS in improved oil recovery from oil fields

در اين پژوهش با انجام آزمايشهاي تزريق آب، دبي نفت توليدي اندازهگيري شد و سپس با تزريق نانوذرات دي اكسيد تيتانيوم (TiO2 (و سورفكتانت آنيوني سديم دودسيل سولفات (SDS (با غلظتهاي مختلف )52 ،25 و ppm 52 )و تخلخل متفاوت )52 ،55 و 05 درصد( دبي و درصد بازيافت نفت توليدي اندازهگيري شد. به منظور كاهش زمان و هزينه آزمايشها، استفاده از يك روش طراحي آزمايش )DOE )ضروري ميباشد كه بدين منظور از روش تاگوچي استفاده گرديد. در اين كار، ابتدا ضمن بررسي اجمالي فرآيندهاي ازدياد برداشت، ابتدا دبي توليد نفت با انجام آزمايشهاي تزريق آب اندازهگيري شد و سپس با تزريق آب، نانوذرات و سورفكتانت دبي توليد نفت اندازهگيري شد. همچنين تست ATR نيز روي نمونههاي بدست آمده از آزمايش تزريق آب، نانوذرات و سورفكتانت صورت گرفت. بيشترين درصد بازيافت نفت زماني بدست ميآيد كه غلظت نانوذرات ppm 52 ،غلظت سورفكتانت 52ppm و ضريب تخلخل 05 %باشد. در اين شرايط درصد بازيافت نفت 25 %بدست آمد.

‌‌‌‌One method of increasing oil recovery is using nanoparticles and surfactants with water injection into the oil reservoirs. Surfactants reduce the surface tension of the wettability conditions caused by the displacement of trapped oil in reservoir rock and the more oil is extracted. In this study, with water flooding experiments, oil flow rate was measured and then injected with nanoparticles of Titanium dioxide (TiO2) and Anionic surfactant Sodium dodecyl sulfate (SDS) with different concentrations (25, 50 and 75 ppm) and different porosity (15, 20 and 30%) production was measured flow rate, and oil recovery. In order to reduce the time and cost of testing, using a Design of Experiments (DOE) is necessary for the purpose of Taguchi method was used. In this work, after an overview EOR processes, the oil production rate was measured with tests of water injection and water injection, oil production rate of nanoparticles and surfactants were measured. In addition, ATR also tested on samples of water injection test, nanoparticles and surfactants took place. improved reservoir. Most percent recovery is obtained when the concentration of nanoparticles 25 ppm, 75 ppm surfactant concentration and the porosity is 30%. In these circumstances percent recovery was 57%.