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Dive into the research topics where Emad W. Al-Shalabi is active.

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Featured researches published by Emad W. Al-Shalabi.


Journal of Petroleum Engineering | 2014

Mysteries behind the Low Salinity Water Injection Technique

Emad W. Al-Shalabi; Kamy Sepehrnoori; Gary A. Pope

Low salinity water injection (LSWI) is gaining popularity as an improved oil recovery technique in both secondary and tertiary injection modes. The objective of this paper is to investigate the main mechanisms behind the LSWI effect on oil recovery from carbonates through history-matching of a recently published coreflood. This paper includes a description of the seawater cycle match and two proposed methods to history-match the LSWI cycles using the UTCHEM simulator. The sensitivity of residual oil saturation, capillary pressure curve, and relative permeability parameters (endpoints and Corey’s exponents) on LSWI is evaluated in this work. Results showed that wettability alteration is still believed to be the main contributor to the LSWI effect on oil recovery in carbonates through successfully history matching both oil recovery and pressure drop data. Moreover, tuning residual oil saturation and relative permeability parameters including endpoints and exponents is essential for a good data match. Also, the incremental oil recovery obtained by LSWI is mainly controlled by oil relative permeability parameters rather than water relative permeability parameters. The findings of this paper help to gain more insight into this uncertain IOR technique and propose a mechanistic model for oil recovery predictions.


Petroleum Science and Technology | 2015

Numerical Simulation of the LSWI Effect on Hydrocarbon Recovery From Carbonate Rocks

Emad W. Al-Shalabi; Kamy Sepehrnoori; Mojdeh Delshad

Wettability alteration mechanism is still believed to be the main contributor to low salinity water injection (LSWI) effect on oil recovery from carbonate rocks. The authors investigated the main mechanism and contributor to the LSWI effect on oil recovery from carbonate rocks through history matching recently published corefloods using the UTCHEM simulator. The history match results suggest that wettability alteration has negligible effect on water relative permeability, which could be related to the double electric layer expansion mechanism. This paper provides a basis to develop a LSWI model to predict oil recovery from carbonate rocks.


Petroleum Science and Technology | 2015

Simulation of Wettability Alteration by Low-Salinity Water Injection in Waterflooded Carbonate Cores

Emad W. Al-Shalabi; Kamy Sepehrnoori; Mojdeh Delshad

Low-salinity water injection is an emerging improved oil recovery technique due to its simplicity compared to other water based improved oil recovery methods. In this study, the wettability alteration option in the authors’ in-house simulator is used to history match and provide some insights in different seawater dilution cycles based on recently published corefloods. Two newly proposed methodologies to model dilution cycles are employed. The authors successfully modeled the experiments enhancing the wettability alteration model in the simulator using two different scaling factors. The study also revealed that the process is more sensitive to oil relative permeability compared to that of the water phase. A linear interpolation model for residual oil saturation (Sor) was proposed.


Journal of Petroleum Science and Engineering | 2016

A comprehensive review of low salinity/engineered water injections and their applications in sandstone and carbonate rocks

Emad W. Al-Shalabi; Kamy Sepehrnoori


Journal of Natural Gas Science and Engineering | 2014

Simulation study on the CO2-driven enhanced gas recovery with sequestration versus the re-fracturing treatment of horizontal wells in the U.S. unconventional shale reservoirs

Mohammad O. Eshkalak; Emad W. Al-Shalabi; Alireza Sanaei; Umut Aybar; Kamy Sepehrnoori


SPE Improved Oil Recovery Symposium | 2014

Geochemical Interpretation of Low Salinity Water Injection in Carbonate Oil Reservoirs

Emad W. Al-Shalabi; Kamy Sepehrnoori; Gary A. Pope


SPE EOR Conference at Oil and Gas West Asia 2014: Driving Integrated and Innovative EOR | 2014

A Novel Method to Model Low Salinity Water Injection in Carbonate Oil Reservoirs

Emad W. Al-Shalabi; Kamy Sepehrnoori; Mojdeh Delshad; Gary A. Pope


SPE USA Unconventional Resources Conference 2014 | 2014

A Sensitivity Study of Potential CO2 Injection for Enhanced Gas Recovery in Barnett Shale Reservoirs

Wei Yu; Emad W. Al-Shalabi; Kamy Sepehrnoori


Abu Dhabi International Petroleum Exhibition and Conference | 2014

Enhanced Gas Recovery by CO2 Sequestration versus Re-fracturing Treatment in Unconventional Shale Gas Reservoirs

Mohammad O. Eshkalak; Emad W. Al-Shalabi; Alireza Sanaei; Umut Aybar; Kamy Sepehrnoori


Spe Journal | 2016

A Robust Geochemical Simulator To Model Improved-Oil-Recovery Methods

Haishan Luo; Emad W. Al-Shalabi; Mojdeh Delshad; Krishna Panthi; Kamy Sepehrnoori

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Kamy Sepehrnoori

University of Texas at Austin

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Gary A. Pope

University of Texas at Austin

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Mojdeh Delshad

University of Texas at Austin

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Haishan Luo

University of Texas at Austin

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Alireza Sanaei

University of Texas at Austin

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Krishna Panthi

University of Texas at Austin

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Mahdi Haddad

University of Texas at Austin

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Mohammad O. Eshkalak

University of Texas at Austin

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Umut Aybar

University of Texas at Austin

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Kishore K. Mohanty

University of Texas at Austin

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