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Keywords: oil recovery
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Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 3–5, 2022
Paper Number: SPE-210009-MS
..., their production history, applied enhanced oil recovery (EOR) methods, and we finally made some EOR recommendations which may help to increase hydrocarbon recoveries in each basin. At the beginning of the current decade, Brazil was producing almost 2 MM barrels of oil per day. Nowadays, the pre-salt fields alone...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 3–5, 2022
Paper Number: SPE-210028-MS
... and an immiscible helium gas. The minimum miscibility pressure (MMP) between the field gases and the crude oil was measured using the vanishing interfacial tension technique. Oil recovery for each Huff-and-Puff EOR cycle was quantified using NMR measurements. The produced hydrocarbon compositions were determined...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 3–5, 2022
Paper Number: SPE-210153-MS
..., the sensitivity analysis was run on the validated model to examine the effects of different parameters including gas injection rate, CO 2 slug size, and CO 2 -WAG cycle number on the heavy oil recovery and CO 2 storage efficiency. As the saturation pressure of the heavy oil-CO 2 mixture increases...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 21–23, 2021
Paper Number: SPE-206307-MS
... Abstract Water-alternating-gas (WAG) injection, both miscible and immiscible, is a widely used enhanced oil recovery method with over 80 field cases. Despite its prevalence, the numerical modeling of the physical processes involved remains poorly understood, and existing models often lack...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 21–23, 2021
Paper Number: SPE-206220-MS
... Abstract Complex surfactant formulations have been applied to induce ultra-low interfacial tension (IFT) (e.g., 10 −3 mN/m) between the displacing water phase and the displaced oil phase in chemical enhanced oil recovery (CEOR), where the residual oil after waterflooding can be largely...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 21–23, 2021
Paper Number: SPE-206357-MS
... pores and throats, but with LSW brine invaded small-size pores and throats. Overall, our analysis shows that a change from a weakly oil-wet towards a mixed-wet state was observed mainly after LSW, leading to an incremental increase in oil recovery. This work established a combined coreflooding...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 21–23, 2021
Paper Number: SPE-206011-MS
... hydraulic fracturing sag coi porous media slug 0 oil recovery fracture fracture model foam foam generation ncf-st-co 2 Introduction where q g is the volumetric flow rate of CO 2 , q l is the volumetric flow rate of liquid, and the total flow rate q total equals to q g + q l...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 21–23, 2021
Paper Number: SPE-206010-MS
... to enhance production from existing fields or make new field discoveries in order to satisfy future energetic requirements. Enhanced Oil Recovery (EOR) is an essential stage in oil production that may increase ultimate oil recovery to more than half of the reservoir's original oil in place (OOIP) ( Aladasani...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 21–23, 2021
Paper Number: SPE-205991-MS
... enhancement heavy oil oil recovery petroleum engineer flow in porous media emulsion sand column blockage solvent-loaded microsphere microsphere Particle size distribution of toluene emulsions dispersed in water and those encapsulated in silica microspheres are depicted in Figure 6 . The average...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 21–23, 2021
Paper Number: SPE-206013-MS
... ). It is generally acknowledged that the injection of a low-salinity brine into carbonates improves oil recovery by shifting the wettability towards stronger water-wet conditions ( Alotaibi et al., 2011 ; Aziz et al., 2019 ; Mahani et al., 2015b , Mahani et al. 2018 ; Song et al., 2017 ). Depending on the core...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 21–23, 2021
Paper Number: SPE-206071-MS
... were designed to increase students’ interest in learning about the selected petroleum engineering concepts, namely polymer flooding to enhance oil recovery and multiphase fluid flow in porous media, while simultaneously providing an understanding of the current global challenges faced by the oil...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 21–23, 2021
Paper Number: SPE-206016-MS
... Abstract Improved Oil Recovery, IOR, in shales is a topic of growing interest due to the low oil recovery observed in shales. Evaluating different IOR chemicals at the lab scale has proved difficult and time consuming due to their ultra-low permeability and low porosity. Conventional core...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 21–23, 2021
Paper Number: SPE-206045-MS
... the oil recovery. The ultimate goal is to develop an intelligent operational advisory solution that guides the plant operation team to optimal HPPT/LPPT pressure settings that compensate for the variation in ambient temperature effect in order to maximize plant revenue. Methodology Abstract...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 21–23, 2021
Paper Number: SPE-206098-MS
... Summary In an era of increasing energy demand, declining oil fields and fluctuating crude oil prices globally, most oil companies are looking forward to implementing cost effective and environmentally sustainable enhanced oil recovery (EOR) techniques such as low salinity waterflooding (LSWF...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 21–23, 2021
Paper Number: SPE-206118-MS
..., and the performance of low salinity injection was tested using rock from reservoir A and crude from reservoir B, and vice versa. For the first set of experiments, we found that the crude oil sample capable of forming micro-dispersion (we call this oil "positive", from reservoir A) resulted in extra oil recovery...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 21–23, 2021
Paper Number: SPE-206151-MS
... in high oil recovery (>50%) from the relatively "homogeneous" core. Secondary-surfactant flood (CF-2) resulted in similar oil recovery with that by secondary- waterflood when injection rate was high (~1 ft/day). A surge in oil production was observed after the shut-in phase, which indicates...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 21–23, 2021
Paper Number: SPE-206194-MS
... of each fluid and injection gas. Eagle Ford formation is selected because it is the most actively developed shale, and it contains a wide span of PVT windows from dry gas to black oil. The simulation results show that the huff-n-puff process improves the oil recovery by 4-6% when 10% PV of gas...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 21–23, 2021
Paper Number: SPE-206186-MS
... that utilizes a triplex pump to inject a solvent liquid into the shale oil reservoir, and an efficient method to recover the injectant at the surface, for storage and reinjection. The process is designed and integrated during operation using compositional reservoir simulation in order to optimize oil recovery...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 21–23, 2021
Paper Number: SPE-206164-MS
... The parameters of core preparation for the coreflood experiments are detailed in Table A4 and the results of pore volume injection at breakthrough, oil recovery at breakthrough, and final oil recovery, are included in Table A5 . For all three oils, maximum oil recovery is obtained by injection...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 21–23, 2021
Paper Number: SPE-206260-MS
... Abstract Recently, spherical nanoparticles have been studied to enhance oil recovery (EOR) worldwide due to their remarkable properties. However, there is a lack of studies of nanosheets on EOR. In this work, we synthesize the amphiphilic molybdenum disulfide nanosheets through...

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