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1

[Society of Petroleum Engineers SPE EOR Conference at Oil and Gas West Asia - Muscat, Oman (2018-03-26)] SPE EOR Conference at Oil and Gas West Asia - SmartWater Synergy with Surfactant Polymer Flooding for Efficient Oil Mobilization in Carbonates

Wang, Jinxun, Ayirala, Subhash C., AlSofi, Abdulkareem M., Al-Yousef, Ali A., Aramco, Saudi

Language:

english

File:

PDF, 821 KB

english

2

Academia and Independent E&P Companies: A Win-Win Partnership

Ayirala, Subhash, Pires, Paulo, Rai, Sanchit

Journal:

Year:

2012

Language:

english

File:

PDF, 60 KB

english, 2012

3

Miscibility Determination from Gas-Oil Interfacial Tension and P-R Equation of State

Subhash C. Ayirala, Dandina N. Rao

Journal:

The Canadian Journal of Chemical Engineering

Year:

2007

File:

PDF, 1.39 MB

2007

4

Surface and Subsurface Requirements for Successful Implementation of Offshore Chemical Enhanced Oil Recovery

Raney, Kirk H., Ayirala, Subhash, Chin, Robert W., Verbeek, Paul

Journal:

SPE Production & Operations

Year:

2012

Language:

english

File:

PDF, 4.31 MB

english, 2012

5

[Society of Petroleum Engineers SPE/DOE Symposium on Improved Oil Recovery - Tulsa, Oklahoma, USA (2006-04-22)] SPE/DOE Symposium on Improved Oil Recovery - Comparative Evaluation of a New MMP Determination Technique

Ayirala, Subhash C., Rao, Dandina Nagaraja

Language:

english

File:

PDF, 212 KB

english

6

[Society of Petroleum Engineers SPE Middle East Oil & Gas Show and Conference - Manama, Kingdom of Bahrain (2017-03-06)] SPE Middle East Oil & Gas Show and Conference - Water Ion Interactions at Crude Oil-Water Interface: A New Fundamental Understanding on SmartWater Flood

Ayirala, Subhash C., AlYousef, Ali A., Li, Zuoli, Xu, Zhenghe

Language:

english

File:

PDF, 1.89 MB

english

7

[Society of Petroleum Engineers SPE Symposium on Improved Oil Recovery - Tulsa, Oklahoma, USA (2008-04-20)] SPE Symposium on Improved Oil Recovery - Reservoir Condition Measurements of Compositional Effects on Gas-Oil Interfacial Tension and Miscibility

Sequeira, Daryl Sean, Ayirala, Subhash C., Rao, Dandina Nagaraja

Language:

english

File:

PDF, 876 KB

english

8

Comments on “An analysis of the vanishing interfacial tension technique for determination of minimum miscibility pressure” by F.M. Orr and K. Jessen [Fluid Phase Equilib. 255 (2007) 99–109]

Dandina N. Rao, Subhash C. Ayirala

Journal:

Fluid Phase Equilibria

Year:

2007

Language:

english

File:

PDF, 94 KB

english, 2007

9

Comparative Evaluation of a New Gas/Oil Miscibility-Determination Technique

Ayirala, Subhash C., Rao, Dandina N.

Journal:

Journal of Canadian Petroleum Technology

Year:

2011

Language:

english

File:

PDF, 660 KB

english, 2011

10

A new mechanistic Parachor model to predict dynamic interfacial tension and miscibility in multicomponent hydrocarbon systems

Subhash C. Ayirala, Dandina N. Rao

Journal:

Journal of Colloid and Interface Science

Year:

2006

Language:

english

File:

PDF, 303 KB

english, 2006

11

Multiscale Aqueous-Ion Interactions at Interfaces for Enhanced Understanding of Controlled-Ionic-Composition-Waterflooding Processes in Carbonates

Ayirala, Subhash, Saleh, Salah, Enezi, Sultan, Yousef, Ali

Journal:

SPE Reservoir Evaluation & Engineering

Year:

2019

File:

PDF, 945 KB

2019

12

Molecular-scale origins of wettability at petroleumâbrineâcarbonate interfaces

Fenter, Paul, Qin, Tianzhu, Lee, Sang Soo, AlOtaibi, Mohammed B., Ayirala, Subhash, Yousef, Ali A.

Journal:

Scientific Reports

Year:

2020

File:

PDF, 2.59 MB

2020

13

[Society of Petroleum Engineers SPE International Petroleum Conference in Mexico - (2004.11.7-2004.11.9)] Proceedings of SPE International Petroleum Conference in Mexico - Application of a New Mechanistic Parachor Model to Predict Dynamic Gas-Oil Miscibility in Reservoir Crude Oil-Solvent Systems

Ayirala, Subhash, Rao, Dandina

Year:

2004

Language:

english

File:

PDF, 250 KB

english, 2004

14

Advanced Waterflooding Processes For Eor In Sandstones And Carbonates

Ayirala, Subhash

Journal:

Journal of Petroleum Science and Engineering

Year:

2018

Language:

english

File:

PDF, 1.49 MB

english, 2018

15

Amino Acid as a Novel Wettability Modifier for Enhanced Waterflooding in Carbonate Reservoirs

Lara Orozco, Ricardo A., Abeykoon, Gayan A., Wang, Mingyuan, Arguelles-Vivas, Francisco, Okuno, Ryosuke, Lake, Larry W., Ayirala, Subhash C., AlSofi, Abdulkareem M.

Journal:

SPE Reservoir Evaluation & Engineering

Year:

2019

File:

PDF, 1.26 MB

2019

16

A State-of-the-Art Review To Develop Injection-Water-Chemistry Requirement Guidelines for IOR/EOR Projects

Ayirala, Subhash, Yousef, Ali

Journal:

SPE Production & Operations

Year:

2015

Language:

english

File:

PDF, 940 KB

english, 2015

17

Effects of salinity on oil recovery (the ‘dilution effect’): Experimental and theoretical studies of crude oil/brine/carbonate surface restructuring and associated physico-chemical interactions

Chen, Szu-Ying, Kaufman, Yair, Kristiansen, Kai, Seo, Dongjin, Schrader, Alex M, Alotaibi, Mohammed B., Dobbs, Howard A, Cadirov, Nicholas A., Boles, James R, Ayirala, Subhash C, Israelachvili, Jacob

Journal:

Year:

2017

Language:

english

File:

PDF, 6.11 MB

english, 2017

18

Microscopic scale interactions of water ions at crude oil/water interface and their impact on oil mobilization in advanced water flooding

Ayirala, Subhash C., Saleh, Salah H., Yousef, Ali A.

Journal:

Journal of Petroleum Science and Engineering

Year:

2017

Language:

english

File:

PDF, 5.12 MB

english, 2017

19

Measurement of Surfactant-Induced Interfacial Interactions at Reservoir Conditions

Xu, Wei, Ayirala, Subhash C., Rao, Dandina N.

Journal:

SPE Reservoir Evaluation & Engineering

Year:

2008

Language:

english

File:

PDF, 2.61 MB

english, 2008

20

[Society of Petroleum Engineers Abu Dhabi International Petroleum Exhibition & Conference - Abu Dhabi, UAE (2018-11-12)] Abu Dhabi International Petroleum Exhibition & Conference - SmartWater Effects on Wettability, Adhesion and Oil Liberation in Carbonates

Li, Zuoli, Xu, Zhenghe, Ayirala, Subhash, Yousef, Ali

Language:

english

File:

PDF, 1.33 MB

english

21

[Society of Petroleum Engineers SPE Annual Technical Conference and Exhibition - Calgary, Alberta, Canada (2019-09-23)] SPE Annual Technical Conference and Exhibition - Amino Acid as a Novel Wettability Modifier for Enhanced Waterflooding in Carbonate Reservoirs

Lara Orozco, Ricardo A., Abeykoon, Gayan A., Wang, Mingyuan, Argüelles Vivas, Francisco J., Okuno, Ryosuke, Lake, Larry W., Ayirala, Subhash C., AlSofi, Abdulkareem M.

Language:

english

File:

PDF, 2.07 MB

english

22

[International Petroleum Technology Conference International Petroleum Technology Conference - Dhahran, Kingdom of Saudi Arabia (2020-01-13)] International Petroleum Technology Conference - Electro-Kinetic Induced Wettability Alteration for Enhanced Oil Recovery in Carbonates

Alghamdi, Amani, Ayirala, Subhash, Alotaibi, Mohammed, Alyousef, Ali

File:

PDF, 609 KB

23

[Society of Petroleum Engineers SPE Annual Technical Conference and Exhibition - Virtual (2020-10-21)] SPE Annual Technical Conference and Exhibition - Pore Scale Investigation of Oil Displacement Dynamics by Smart Waterflooding using Synchrotron X-ray Microtomography

Qin, Tianzhu, Fenter, Paul, AlOtaibi, Mohammed, Ayirala, Subhash, AlYousef, Ali

File:

PDF, 1.05 MB

24

[Society of Petroleum Engineers SPE Annual Technical Conference and Exhibition - Calgary, Alberta, Canada (2019-09-23)] SPE Annual Technical Conference and Exhibition - Amino Acid as a Novel Wettability Modifier for Enhanced Waterflooding in Carbonate Reservoirs

Lara Orozco, Ricardo A., Abeykoon, Gayan A., Wang, Mingyuan, Argüelles Vivas, Francisco J., Okuno, Ryosuke, Lake, Larry W., Ayirala, Subhash C., AlSofi, Abdulkareem M.

File:

PDF, 2.07 MB

25

[Society of Petroleum Engineers SPE Improved Oil Recovery Conference - Tulsa, Oklahoma, USA (2020-08-30)] SPE Improved Oil Recovery Conference - Simulation of Advanced Waterflooding in Carbonates Using a Surface Complexation-Based Multiphase Transport Model

Abu-Al-Saud, Moataz, Al-Saleh, Salah, Ayirala, Subhash, Yousef, Ali

File:

PDF, 1.07 MB

26

Multiphase flow and wettability effects of surfactants in porous media

Subhash C Ayirala, Dandina N Rao

Journal:

Colloids and Surfaces A: Physicochemical and Engineering Aspects

Year:

2004

Language:

english

File:

PDF, 308 KB

english, 2004

27

A Critical Review of Alternative Desalination Technologies for Smart Waterflooding

Ayirala, Subhash C., Yousef, Ali A.

Journal:

Oil and Gas Facilities

Year:

2016

Language:

english

File:

PDF, 2.36 MB

english, 2016

28

Time-dependent physico-chemical changes of carbonate surfaces from SmartWater (diluted seawater)-flooding processes for improved oil recovery

Chen, Szu-Ying, Kristiansen, Kai, Seo, Dongjin, Cadirov, Nicholas A., Dobbs, Howard A, Kaufman, Yair, Schrader, Alex M, Andresen Eguiluz, Roberto Carlos, Alotaibi, Mohammed B., Ayirala, Subhash C., Bo

Journal:

Year:

2018

Language:

english

File:

PDF, 3.14 MB

english, 2018

29

Application of the parachor model to the prediction of miscibility in multi-component hydrocarbon systems

Ayirala, Subhash C, Rao, Dandina N

Journal:

Journal of Physics Condensed Matter

Year:

2004

Language:

english

File:

PDF, 122 KB

english, 2004

30

[Society of Petroleum Engineers SPE/DOE Symposium on Improved Oil Recovery - Tulsa, Oklahoma, USA (2006-04-22)] SPE/DOE Symposium on Improved Oil Recovery - Impact of Low-Cost Dilute Surfactants on Wettability and Relative Permeability

Rao, Dandina Nagaraja, Ayirala, Subhash C., Abe, Ayodeji Adebola, Xu, Wei

Language:

english

File:

PDF, 288 KB

english

31

[Society of Petroleum Engineers SPE Improved Oil Recovery Symposium - Tulsa, Oklahoma, USA (2010-04-24)] SPE Improved Oil Recovery Symposium - A Designer Water Process for Offshore Low Salinity and Polymer Flooding Applications

Ayirala, Subhash C., Uehara-Nagamine, Ernesto, Matzakos, Andreas Nicholas, Chin, Robert W., Doe, Peter Harold, van den Hoek, Paul Jacob

Language:

english

File:

PDF, 140 KB

english

32

Coalescence of Crude Oil Droplets in Brine Systems: Effect of Individual Electrolytes

Ayirala, Subhash C., Yousef, Ali A., Li, Zuoli, Xu, Zhenghe

Journal:

Year:

2018

Language:

english

File:

PDF, 1.14 MB

english, 2018

33

Authors' response to the comments on “A new mechanistic Parachor model to predict dynamic interfacial tension and miscibility in multicomponent hydrocarbon systems” by F.M. Orr and K. Jessen

Dandina N. Rao, Subhash C. Ayirala

Journal:

Journal of Colloid and Interface Science

Year:

2007

Language:

english

File:

PDF, 98 KB

english, 2007

34

Optimization Study of a Novel Water-Ionic Technology for Smart-Waterflooding Application in Carbonate Reservoirs

Yousef, Ali, Ayirala, Subhash

Journal:

Oil and Gas Facilities

Year:

2014

Language:

english

File:

PDF, 540 KB

english, 2014

35

[Offshore Technology Conference Offshore Technology Conference - Houston, Texas, USA (2011-05-02)] Offshore Technology Conference - Surface and Subsurface Requirements for Successful Implementation of Offshore Chemical Enhanced Oil Recovery

Raney, Kirk H., Ayirala, Subhash C., Chin, Robert W., Verbeek, Paul

Language:

english

File:

PDF, 1.85 MB

english

36

Evaluating foam stability using tailored water chemistry for gas mobility control applications

AlYousef, Zuhair, Ayirala, Subhash, Gizzatov, Ayrat, Kokal, Sunil

Journal:

Journal of Petroleum Science and Engineering

Year:

2020

File:

PDF, 3.32 MB

2020

37

[Society of Petroleum Engineers SPE Gas & Oil Technology Showcase and Conference - Dubai, UAE (2019-10-21)] SPE Gas & Oil Technology Showcase and Conference - Macroscopic Scale Interactions of Smartwater with Alkaline Chemicals for Enhanced Oil Recovery in Carbonates

Alabdullateef, Muhannad, Ayirala, Subhash, Al-Saleh, Salah, Yousef, Ali

File:

PDF, 745 KB

38

[Society of Petroleum Engineers SPE International Petroleum Conference in Mexico - Puebla Pue., Mexico (2004-11-07)] SPE International Petroleum Conference in Mexico - Application of a New Mechanistic Parachor Model to Predict Dynamic Gas-Oil Miscibility in Reservoir Crude Oil-Solvent Systems

Ayirala, Subhash C., Rao, Dandina N.

Language:

english

File:

PDF, 250 KB

english

39

Effect of Salinity and Water Ions on Electrokinetic Interactions in Carbonate Reservoir Cores at Elevated Temperatures

Ayirala, Subhash, Al-Saleh, Salah Hamad, Enezi, Sultan, Yousef, Ali

Journal:

SPE Reservoir Evaluation & Engineering

Year:

2018

Language:

english

File:

PDF, 1.01 MB

english, 2018

40

[Society of Petroleum Engineers Abu Dhabi International Petroleum Exhibition & Conference - Abu Dhabi, UAE (2019-11-11)] Abu Dhabi International Petroleum Exhibition & Conference - Evaluating Foam Stability using Tailored Water Chemistry for Gas Mobility Control Applications

AlYousef, Zuhair, Ayirala, Subhash, Gizzatov, Ayrat, Kokal, Sunil

Language:

english

File:

PDF, 720 KB

english

41

Interfacial Behaviour of Complex Hydrocarbon Fluids at Elevated Pressures and Temperatures

Subhash C. Ayirala, Wei Xu, Dandina N. Rao

Journal:

The Canadian Journal of Chemical Engineering

Year:

2006

Language:

english

File:

PDF, 269 KB

english, 2006

42

[International Petroleum Technology Conference International Petroleum Technology Conference - Beijing, China (2019-03-22)] International Petroleum Technology Conference - Multiscale Water Ion Interactions at Interfaces for Enhanced Understanding of SmartWater Flooding in Carbonates

Ayirala, Subhash, Saleh, Salah, Enezi, Sultan, Yousef, Ali

File:

PDF, 1.55 MB

43

Mineral Interfaces and Oil Recovery: A Microscopic View on Surface Reconstruction, Organic Modification, and Wettability Alteration of Carbonates

Rao, Ashit, Kumar, Saravana, Annink, Carla, Le-Anh, Duy, Ayirala, Subhash C., Alotaibi, Mohammed B., Siretanu, Igor, Duits, Michel H.G., Yousef, Ali A., Mugele, Frieder

Journal:

Year:

2020

File:

PDF, 1.39 MB

2020

44

Beneficial effects of wettability altering surfactants in oil-wet fractured reservoirs

Subhash C. Ayirala, Chandra S. Vijapurapu, Dandina N. Rao

Journal:

Journal of Petroleum Science and Engineering

Year:

2006

Language:

english

File:

PDF, 539 KB

english, 2006

45

[Society of Petroleum Engineers SPE Heavy Oil Conference and Exhibition - Kuwait City, Kuwait (2016-12-06)] SPE Heavy Oil Conference and Exhibition - SmartWater Synergy with Chemical EOR for a Slightly Viscous Arabian Heavy Reservoir

AlSofi, Abdulkareem M, Wang, Jinxun, AlBoqmi, Abdullah M, AlOtaibi, Mohammad B, Ayirala, Subhash C, AlYousef, Ali A

Language:

english

File:

PDF, 1.47 MB

english

46

[Society of Petroleum Engineers SPE Improved Oil Recovery Conference - Tulsa, Oklahoma, USA (2020-08-30)] SPE Improved Oil Recovery Conference - Artificial Diagenesis of Carbonates: Temperature Dependent Inorganic and Organic Modifications in Reservoir Mimetic Fluids

Rao, Ashit, Kumar, Saravana, Annink, Carla, Le-Anh, Duy, B. Alotaibi, Mohammed, C. Ayirala, Subhash, Siretanu, Igor, Duits, Michel, Mugele, Frieder, A. Yousef, Ali

File:

PDF, 1.70 MB

47

A Surface Complexation Model of Alkaline-SmartWater Electrokinetic Interactions in Carbonates

Abu-Al-Saud, Moataz, Al-Ghamdi, Amani, Ayirala, Subhash, Al-Otaibi, Mohammed, Schembre-McCabe, J., Ott, H.

Journal:

E3S Web of Conferences

Year:

2020

File:

PDF, 504 KB

2020

48

Compositional Dependence of Wetting and Contact Angles in Solid-Liquid-Liquid Systems under Realistic Environments

Wei Xu, Subhash C. Ayirala, Dandina N. Rao

Journal:

The Canadian Journal of Chemical Engineering

Year:

2006

Language:

english

File:

PDF, 203 KB

english, 2006

49

Dilute surfactants for wettability alteration and enhanced oil recovery in carbonates

Ayirala, Subhash C., Boqmi, Abdullah, Alghamdi, Amani, AlSofi, Abdulkareem

Journal:

Journal of Molecular Liquids

Year:

2019

Language:

english

File:

PDF, 1.31 MB

english, 2019

50

[Society of Petroleum Engineers SPE International Petroleum Conference in Mexico - Puebla Pue., Mexico (2004-11-07)] SPE International Petroleum Conference in Mexico - Solubility, Miscibility and their Relation to Interfacial Tension for Application in Reservoir Gas-Oil Systems

Ayirala, Subhash C., Sequeira, Daryl S., Rao, Dandina N.

Language:

english

File:

PDF, 304 KB

english

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