Surfactant Adsorption in Surfactant-Polymer Flooding for Carbonate Reservoirs

Wang, Jinxun; Han, Ming; Fuseni, Alhasan; Cao, Danping

doi:10.2118/172700-ms

Cited by 73 publications

(41 citation statements)

References 15 publications

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“…There are reports of several laboratory scale tests and field trials using anionic sulfate and sulfonate surfactants for high-salinity limestone reservoirs (Hirasaki et al 2008;Levitt et al 2006). However, due to the electrostatic force of attraction, they often adsorb strongly on the positively charged limestone surfaces in the presence of dissolved acidic CO 2 at high pressures (Lawson 1978, Wang et al 2015. Cationic surfactants, on the other hand, exhibit low adsorption on carbonate formations, due to the electrostatic repulsion between the cationic head and the positive charge bearing carbonate surface (Hirasaki et al 2008;Ahmadall et al 1993;Lawson 1978).…”

Section: Surfactant Foamsmentioning

confidence: 99%

Review of surfactant-assisted chemical enhanced oil recovery for carbonate reservoirs: challenges and future perspectives

et al. 2017

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Section: Surfactant Foamsmentioning

confidence: 99%

Review of surfactant-assisted chemical enhanced oil recovery for carbonate reservoirs: challenges and future perspectives

et al. 2017

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“…The potential of this SP slug was previously demonstrated for harsh temperature and salinity conditions (Han et al , 2014Zhou et al 2012;Fuseni et al 2013;Wang et al 2015).…”

Section: Surfactant-polymer Slugmentioning

confidence: 90%

Development and evaluation of foam-based conformance control for a high-salinity and high-temperature carbonate

Fuseni

AlSofi

Al-Julaih

et al. 2018

J Petrol Explor Prod Technol

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The extreme heterogeneity of carbonate reservoirs in the form of fracture corridors and super-permeability thief zones present challenges to the efficient sweep of oil in both secondary and tertiary recovery operations. In such reservoirs, conformance control is crucial to ensure injected water and any EOR chemicals optimally contact the remaining oil with minimal throughput. Foam-based conformance control is a relatively new technology especially its use for deep diversion in high-salinity and high-temperature conditions. In this work, a laboratory study was conducted to develop and evaluate a foam-based conformance control technology for application in a high-salinity and high-temperature carbonate. Foaming agents (surfactants) were first screened for their suitability with regard to reservoir temperature and salinity where properties such as foamability and foam stability were measured. The best performing surfactants were then used to study the foam-induced mobility reduction across a core composite. The experiments were conducted at reservoir conditions. Foam stability and decay were also investigated in those permeability reduction experiments. Brine and crude oil were injected after foam formation where observed pressure drops allowed quantification of foam stability and decay; hence, the sustainability of mobility reduction. Finally, the potential improvement in reservoir contact and hence oil recovery were examined by oil displacement experiments conducted in specially prepared heterogeneous composites. For the studied conditions of high salinity and high temperature, foaming agents of the amphoteric family as well as one manufacturer proprietary surfactants blend were found suitable in terms of salt tolerance and foam stability. Using the proprietary blend and without oil in core, the generated foam reduced fluids mobility by a factor of 12. The attained mobility reduction was lower in presence of oil but was still acceptable for flow diversion purposes. Using the proprietary blend and with oil in core, the generated foam reduced fluids mobility by a factor of 6 (compared to 12 without oil in core). Oil recovery improvement with foam placement was also found to be significant. These results demonstrate the potential of foams for carbonates with harsh salinity and temperature conditions.

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“…4. Surfactant adsorption is reduced by addition of polymer, or vice versa, as there is an adsorption competition between polymer and surfactant [49]. 5.…”

Section: Mechanisms and Synergy In Aspmentioning

confidence: 99%

Measurement of Streaming Potential in Downhole Application: An Insight for Enhanced Oil Recovery Monitoring

et al. 2016

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Abstract. Downhole monitoring using streaming potential measurement has been developing in order to respond to actual reservoir condition. Most studies have emphasized on monitoring water flooding at various reservoir condition and improving the approaches of measurement. Enhanced Oil Recovery (EOR) could significantly improve oil recovery and the efficiency of the process should be well-monitored. Alkaline-surfactant-polymer (ASP) flooding is the most promising chemical EOR method due to its synergy of alkaline, surfactant and polymer, which could enhance the extraction of residual oil. However, limited studies have been focused on the application of streaming potential in EOR processes, particularly ASP. Thus, this paper aims to review the streaming potential measurement in downhole monitoring with an insight for EOR application and propose the potential measurement in monitoring ASP flooding. It is important for a preliminary study to investigate the synergy in ASP and the effects on oil recovery. The behaviour of streaming potential should be investigated when the environment of porous media changes with respect to ASP flooding. Numerical model can be generated from the experimental data to forecast the measured streaming potential signal during production associated with ASP flooding. Based on the streaming potential behaviour on foam assisted water alternate gas (FAWAG) and water alternate gas (WAG) processes, it is expected that the streaming potential could change significantly when ASP flooding alters the environment and surface properties of porous media. The findings could provide new prospect and knowledge in the relationship between streaming potential and ASP mechanisms, which could be a potential approach in monitoring the efficiency of the process.

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Surfactant Adsorption in Surfactant-Polymer Flooding for Carbonate Reservoirs

Cited by 73 publications

References 15 publications

Review of surfactant-assisted chemical enhanced oil recovery for carbonate reservoirs: challenges and future perspectives

Review of surfactant-assisted chemical enhanced oil recovery for carbonate reservoirs: challenges and future perspectives

Development and evaluation of foam-based conformance control for a high-salinity and high-temperature carbonate

Measurement of Streaming Potential in Downhole Application: An Insight for Enhanced Oil Recovery Monitoring

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