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Alkaline flooding

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Proceedings Papers

Paper presented at the SPE Heavy Oil Conference Canada, June 12–14, 2012
Paper Number: SPE-146852-MS
... to the following equation: chemical flooding methods alkaline-only flooding mechanism alkaline flooding waterflooding concentration heavy oil recovery sweep efficiency oil recovery enhanced recovery tertiary oil recovery pressure drop flooding test alkaline surfactant flooding upstream oil...
Journal Articles
SPE Res Eng 8 (04): 275–280.
Paper Number: SPE-21027-PA
Published: 01 November 1993
...Jeff Rudin; Darsh T. Wasan Summary An experimental investigation of buffered alkaline flooding system chemistry was undertaken to determine the influence of various species present on interfacial tension (IFT) as a function of pH and ionic strength. IFT was found to go through an ultralow minimum...
Journal Articles
SPE J. 25 (06): 857–864.
Paper Number: SPE-12771-PA
Published: 01 December 1985
...J. G. Southwick The expected loss of useful alkalinity caused by the slow dissolution of silica from pure quartz sand is shown for some typical alkaline flooding solutions (about 1 % NaOH or 1.25% sodium orthosilicate) to be only about 10 to 20%. This conclusion is based on the observation...
Proceedings Papers

Paper presented at the SPE EOR Conference at Oil and Gas West Asia, March 21–23, 2016
Paper Number: SPE-179768-MS
... the performance of the nanofluid treatment better. Figure 2 Turbidity changes of samples at various concentrations of MgO NPs Abstract Enhanced oil recovery has become a hot topic nowadays. Low-salinity water (LSW) and alkaline flooding are known as two efficient improved oil-recovery techniques...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 9–11, 2017
Paper Number: SPE-187366-MS
... Abstract A mechanism of alkaline flooding to improve recovery for viscous oils was found to be related to the transition of emulsions from low viscosity and low water-oil-ratios (WORs) to high viscosity and high WORs. Distinct behaviors of emulsions formed by alkaline brines and acidic, viscous...
Proceedings Papers

Paper presented at the North Africa Technical Conference and Exhibition, April 15–17, 2013
Paper Number: SPE-164669-MS
... dissolving additional silica. Figure 3 The effect of PAA on silica dissolution ratio Abstract Scanning electron microscopy (SEM), X-RAY diffraction (XRD) and X-RAY Fluorescence (XRF) were employed to investigate the silicate scale during alkaline flooding. The formation of silicate scale...
Proceedings Papers

Paper presented at the SPE Heavy Oil Conference Canada, June 12–14, 2012
Paper Number: SPE-157814-MS
... In general, it has been shown that alkaline flooding indeed improves oil recovery compared to water flooding, but different views on the mechanisms for alkaline flooding to improve heavy oil recovery are proposed. Some researchers proposed the formation of oil-in-water (O/W) emulsions...
Proceedings Papers

Paper presented at the Canadian Unconventional Resources Conference, November 15–17, 2011
Paper Number: SPE-148971-MS
... Abstract In this paper a laboratory study was reported for investigating a method to improve sweep efficiency by applying alkaline flooding for Pelican Lake reservoir. This included interfacial tension measurements, micromodel observatios and channelled sandpack flood tests. In total, 48 flood...
Journal Articles
J Can Pet Technol 49 (03): 51–57.
Paper Number: SPE-134248-PA
Published: 01 March 2010
... experimentally investigated the effective viscosity of W/O emulsion in porous media. Alkaline flooding tests were performed in channelled sandpacks to demonstrate the effectiveness of sweep efficiency improvement by the in-situ produced W/O emulsions. High tertiary oil recoveries were obtained for all...
Proceedings Papers

Paper presented at the Canadian International Petroleum Conference, June 16–18, 2009
Paper Number: PETSOC-2009-053
... pressure drop alkaline flooding alkaline solution sandpack emulsification experimentally alkaline flooding test alkaline concentration flow in porous media enhanced recovery reservoir waterflooding upstream oil & gas permeability fluid dynamics oil recovery emulsion heavy...
Proceedings Papers

Paper presented at the SPE/DOE Improved Oil Recovery Symposium, April 19–22, 1998
Paper Number: SPE-39661-MS
... enhanced recovery hydrocarbon oxidation ift measurement crude oil recovery abiotic control upstream oil & gas acid number contact time crude oil hepler crude oil experiment oil recovery chemical flooding methods chemical system alkaline flooding microbial treatment pseudomona sp...
Journal Articles
J Can Pet Technol 34 (09).
Paper Number: PETSOC-95-09-01
Published: 01 September 1995
...A.A.H. El-Sayed; M.S. Almalik This paper presents- an experimental investigation of the! effect of horizontal-vertical well configuration on oil recovery of Safanyia crude by alkaline flooding. Emphasis was focussed on the effect of horizontal well pattern on oil recovery. Also, the effects...
Journal Articles
SPE Res Eng 9 (03): 217–223.
Paper Number: SPE-24117-PA
Published: 01 August 1994
...A. H. Falls; D. R. Thigpen; R. C. Nelson; J. W. Ciaston; J. B. Lawson; P. A. Good; R. C. Uber; G. T. Shahin Summary A test of cosurfactant-enhanced alkaline flooding, without polymer for mobility control, was conducted in a small reservoir in the White Castle field, Louisiana. Although the flood...
Journal Articles
J Can Pet Technol 33 (04).
Paper Number: PETSOC-94-04-07
Published: 01 April 1994
... the interfacial tension (IFT) between the crude oil and the injected water, or they can absorb on to the reservoir rock surface, thus altering its wettability. Alkaline flooding can be viewed as a two stage process (5) , the first stage serving to mobilize residual oil by altering its configuration in the pore...
Proceedings Papers

Paper presented at the SPE International Symposium on Oilfield Chemistry, March 2–5, 1993
Paper Number: SPE-25171-MS
... the opposite effect. Chemical properties correlated with alkaline reactivity more strongly than physical properties. A rating system based on factors that influence reactivity was constructed and applied to groups of oils. The rating system should be used as an initial screening tool for alkaline flooding...
Proceedings Papers

Paper presented at the SPE International Symposium on Oilfield Chemistry, February 20–22, 1991
Paper Number: SPE-21030-MS
... Abstract In order to evaluate alkali consumption for oil-field processes like alkaline flooding or clay stabilization treatment, processes like alkaline flooding or clay stabilization treatment, mineral dissolution rates was determined. To do this, a steady-state method was carried out...
Journal Articles
SPE Res Eng 5 (03): 327–332.
Paper Number: SPE-17117-PA
Published: 01 August 1990
...Deborah A. Peru; Philip B. Lorenz Summary Sodium bicarbonate was investigated as a potential alkaline agent in surfactant-enhanced alkaline flooding because it has very little tendency to dissolve silicate minerals. In experiments performed with Wilmington, CA, crude oil and three types...
Proceedings Papers

Paper presented at the SPE/DOE Enhanced Oil Recovery Symposium, April 22–25, 1990
Paper Number: SPE-20238-MS
... SPE Members Abstract The state-of-the-art for alkaline flooding technology is the injection of combinations of alkalis with synthetic surfactants. Surfactant-enhanced alkaline flooding formulations with low-pH alkaline agents have potential for increased oil recovery. They react less...
Journal Articles
J Pet Technol 42 (01): 6–7.
Paper Number: SPE-19896-PA
Published: 01 January 1990
... polymers. Also, the alkaline agent reactswith the rock, thus reducing the chemical adsorption of the surfactant andpolymer and allowing the chemical system to displace oil effectively. Although the alkaline flooding literature has identified numerous mechanismsfor oil displacement. the principal mechanism...
Journal Articles
J Can Pet Technol 29 (01).
Paper Number: PETSOC-90-01-05
Published: 01 January 1990
...Kevin C. Taylor; Blaine F. Hawkins; M. Rafiq Islam Dynamic interfacial tension behaviour has been identified in a surfactant-enhanced alkaline flooding process using David Lloydminster crude oil, sodium carbonate, and the surfactant Neodol 25–35. The magnitude of this dynamic behaviour was found...

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