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Keywords: emulsion
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Proceedings Papers

Paper presented at the SPE International Conference on Oilfield Chemistry, June 28–29, 2023
Paper Number: SPE-213863-MS
... distribution pattern after injection of chemical slug and the profile change of saturated oil during chemical flooding with the BVR and SVR were observed using a micromodel equipment. At 0.2 wt%, the SVR package formed oil-in-water (O/W) emulsions with heavy oil at an oil-to-water ratio of 7:3 and dramatically...
Proceedings Papers

Paper presented at the SPE International Conference on Oilfield Chemistry, June 28–29, 2023
Paper Number: SPE-213793-MS
... ) ( Witten et al. 2004 ). Experimental Materials The FR used in this experiment was obtained from a local service company, in emulsion form. The polymer information such as degree of functionalization, <MW> and counterions were not disclosed. The information on the emulsion such as oil...
Proceedings Papers

Paper presented at the SPE International Conference on Oilfield Chemistry, December 6–7, 2021
Paper Number: SPE-204331-MS
... involves water-based nanofluid-alternating-CO 2 (NWAG) injection, and investigate the synergistic effect of nanofluid and CO 2 for enhancing heavy oil recovery. Firstly, the oil-nanofluid and oil-water emulsions were prepared, and the bulk rheology and interfacial properties of emulsion fluid were tested...
Proceedings Papers

Paper presented at the SPE International Conference on Oilfield Chemistry, December 6–7, 2021
Paper Number: SPE-204324-MS
... 5 mg/L reservoir water and at 110°C. In the optimization, it is found that 0.35% NAC-1+ 0.25% NAC-2 surfactant solution with interfacial tension 3.2×10 -2 mN/m can form a relatively stable emulsion easily with the dehydrated crude oil. In the double core flooding, the conformance control performance...
Proceedings Papers

Paper presented at the SPE International Conference on Oilfield Chemistry, December 6–7, 2021
Paper Number: SPE-204293-MS
... Objectives/Scope Selection of "first fill" demulsifiers for new, undeveloped, oil fields has significant limitations, typically relying on data from test work with synthetic emulsion created in a laboratory using highly contaminated drilling samples of crude oil. Additional separation...
Proceedings Papers

Paper presented at the SPE International Conference on Oilfield Chemistry, December 6–7, 2021
Paper Number: SPE-204290-MS
... Abstract Emulsifier concentration in SBM is an important factor of drilling fluid stability. Proper concentration of amidoamine emulsifier is imperative for controlling low fluid loss and maintaining emulsion stability. This study investigates the physical and chemical interactions between...
Proceedings Papers

Paper presented at the SPE International Conference on Oilfield Chemistry, April 8–9, 2019
Paper Number: SPE-193628-MS
... process using CO 2 triggered switchable surfactants, an emulsion originating from two immiscible phases is stabilized when CO 2 is introduced. Afterwards, the emulsion is flushed by N 2 or air, resulting in the destabilization and phase separation. These distinctive properties of the switchable...
Proceedings Papers

Paper presented at the SPE International Conference on Oilfield Chemistry, April 8–9, 2019
Paper Number: SPE-193596-MS
..., and better acid distribution due to its higher viscosity. Furthermore, the success of the latter system is dependent upon the stability of the emulsion especially at high temperatures. The emulsified acid must be stable until it is properly placed and it also should be compatible with other additives...
Proceedings Papers

Paper presented at the SPE International Conference on Oilfield Chemistry, April 8–9, 2019
Paper Number: SPE-193640-MS
... Abstract Stimuli-responsive emulsions have attracted much attention in diverse fields. However, research on the rapid and effective demulsification based on pH-responsive emulsions has barely been reported, although they are viewed as promising canditates for oil-water separation processes...
Proceedings Papers

Paper presented at the SPE International Conference on Oilfield Chemistry, April 8–9, 2019
Paper Number: SPE-193597-MS
... to the type of emulsifier. A compound emulsifier based on fatty alkanolamides and alkyl sulfonates exhibits reliable ability to prepare stable, thermal-tolerate invert biodiesel emulsion. It offers biodiesel emulsion reduced viscosity compared to those given by traditional Span/Tween emulsifier combinations...
Proceedings Papers

Paper presented at the SPE International Conference on Oilfield Chemistry, April 8–9, 2019
Paper Number: SPE-193615-MS
... Abstract Thermal and flotation processes are widely used to produce bitumen from oil sand in Alberta. However, bitumen contains many surface-active components that tend to form water-in-oil emulsion stabilized by fines and/or asphaltenes. Although several demulsifiers have been proposed...
Proceedings Papers

Paper presented at the SPE International Conference on Oilfield Chemistry, April 3–5, 2017
Paper Number: SPE-184544-MS
... emulsion Artificial Intelligence polymer structure-property relationship characterization property recipe component enhanced recovery water clarifier correlation mode 1 machine learning Modeling & Simulation mode 2 Library mass insoluble interaction oilfield water clarifier replicate...
Proceedings Papers

Paper presented at the SPE International Conference on Oilfield Chemistry, April 3–5, 2017
Paper Number: SPE-184538-MS
... Abstract Crude oil is usually produced from the ground in a form of an oil-and-water emulsion. Prior to the treatment of crude oil in the refineries, the removal of water is necessary to prevent corrosion in the pipeline and the refinery equipment. Chemical agents and heat are the most common...
Proceedings Papers

Paper presented at the SPE International Conference on Oilfield Chemistry, April 3–5, 2017
Paper Number: SPE-184576-MS
... chemistry drilling fluid formulation modification suspension shear rate drilling fluids and materials emulsion Biopolymer reaction drilling fluid property concentration xanthan gum fiber drilling fluid selection and formulation rheology water-based drilling fluid cellulose nanofiber thermal...
Proceedings Papers

Paper presented at the SPE International Symposium on Oilfield Chemistry, April 13–15, 2015
Paper Number: SPE-173711-MS
... assisted emulsified is an effective wormholing fluid at low injection rate while maintaining the high viscosity of the acid system for zonal coverage. Also, it was shown that the emulsion/polymer retention is the main source for permeability damage. However, flowback with mutual solvent removes any...
Proceedings Papers

Paper presented at the SPE International Symposium on Oilfield Chemistry, April 13–15, 2015
Paper Number: SPE-173734-MS
..., and salinity of mixing water. A tunable core-shell delivery system that encompasses a sufficient amount of strong mineral acid is well-poised to address the unmet need of deeper penetration of HCl into the reservoir enabling greater stimulation efficiency. Upstream Oil & Gas emulsion particle...
Proceedings Papers

Paper presented at the SPE International Symposium on Oilfield Chemistry, April 8–10, 2013
Paper Number: SPE-164098-MS
... separation and water treatment efficiency. The methodology consists in a first step in evaluating the risk of stable emulsion formation and assessing the impact of chemical EOR on separation efficiency. Produced fluids are formulated and characterized (different water cuts, type of agitation, EOR chemicals...
Proceedings Papers

Paper presented at the SPE International Symposium on Oilfield Chemistry, April 8–10, 2013
Paper Number: SPE-164109-MS
... chemistry field application Upstream Oil & Gas demulsification Coalescence crude oil spe 164109 emulsion evaluation application thermal method SAGD resin new surfactant chemistry demulsifier heavy oil society of petroleum engineers interfacial elastic modulus interfacial tension...
Proceedings Papers

Paper presented at the SPE International Symposium on Oilfield Chemistry, April 8–10, 2013
Paper Number: SPE-164087-MS
... inhibition acidizing wax remediation wax inhibition asphaltene remediation paraffin remediation Hydrate Remediation hydrate inhibition Upstream Oil & Gas emulsion acid ferric iron precipitation contact angle crude oil asphaltene inhibition acid system beaverhill lake formation...

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