Ahmed Salih Mohammed, Adjunct Professor

Postdoctoral Research University of Houston 
Ph.D. University of Houston 
M.Sc. University of Technology, Baghdad, Iraq 
BSc. University of Technology, Baghdad, Iraq

 

Email: ahmed.salih@auis.edu.krd
 


Dr. Ahmed Salih Mohammed received his PhD in Civil Engineering/Geotechnical Engineering at the Civil and Environmental Engineering Department from the University of Houston, Texas, USA on December 2014 with GPA of 3.75/4 and a Postdoctoral fellow researcher in Civil Engineering/ Geo-Material Engineering at Civil and Environmental Engineering Department in University of Houston, Texas, USA.  He has researched in the areas of petroleum engineering, materials engineering and geotechnical engineering. His cutting edge research were in the areas of development of hydraulic fracturing and smart cements for oil well application related to preventing disaster in the Gulf of Mexico. He also developed smart drilling muds for application in the petroleum and geotechnical fields. He integrated the advances in the areas of nanotechnology, polymer technology and material technology to modify the smart cement, drilling muds and expansive clays. His research area of geotechnical engineering was on controlling the expansion in clays causing major infrastructural damages in many parts of the U.S. including Houston, Dallas and Denver cities using polymers. The polymer treatment method developed by Dr. Mohammed is an outstanding experimentalist, a talent that is very difficult find these days (Adviser said). His research focused on the experimental studies and mathematical modeling of the performance of the smart cement, smart drilling mud and polymer treated expansive clay. Dr. Mohammed has developed several mathematical models to predict the behavior of smart cement, smart drilling mud and polymer treated expansive clays. He developed models to predict the curing, rheological properties and piezoresistive behavior of smart cements. He also developed a new model to predict the rheological behavior of drilling muds. He has developed constitutive models to predict the behavior of polymer treated expansive clays. His work has resulted in 45 journal publications and conference proceedings. The refereed journal publications are in Petroleum Science, Engineering, Egyptian Petroleum Journal Geotechnical and Geological Engineering and ASTM Testing and Evaluation. His research work was also presented at the Offshore Technology Conferences in 2014, 2015, 2016 and 2017 where there were about 100,000 attendees from around the world. His research work was also presented at the American Association of Drilling Engineers, Center for Innovative Grouting Materials and Technology and Texas Hurricane Center of Innovative Technology Conferences. In addition to the above-mentioned research experience Dr. Mohammed was one of the Teaching Assistants in the department of Civil and Environmental Engineering Department in University of Houston, Houston, Texas, USA from 2011 to 2015.

View profile on Google Scholar.
View profile on ResearchGate

Journal Publications: 

  1. Mohammed, A.S. (2017). “Property Correlations and Statistical Variations in the Geotechnical Properties of (CH) Clay Soils, Geotechnical and Geological Engineering, DOI 10.1007/s10706-017-0325-6.
  2. Salih, N. and Mohammed, A.S. (2017). Characterization and modeling of long-term stress-strain behavior of water confined pre-saturated gypsum rock in Kurdistan Region, Iraq. Rock mechanics and geotechnical engineering.
  3. Mohammed, A.S. (2017). Vipulanandan model for the rheological properties with ultimate shear stress of oil well cement modified with nanoclay. Egyptian Journal of Petroleum.
  4. Mohammed, A.S. (2017). Electrical resistivity and rheological properties of sensing bentonite drilling muds modified with lightweight polymer. Egyptian Journal of Petroleum. 10.1016/j.ejpe.2017.01.002.
  5. Vipulanandan, C., and Mohammed, A. (2017). Rheological Properties of Piezoresistive Smart Cement Slurry Modified With Iron-Oxide Nanoparticles for Oil-Well” Applications.” ASTM, Journal of testing and Evaluation. Doi: 10.1520/JTE20150443.
  6. Mohammed, A.S. (2016). Effect of Temperature on the Rheological Properties with Shear Stress Limit of Iron Oxide Nanoparticle Modified Bentonite Drilling Muds. Egyptian Journal of Petroleum.
  7. Vipulanandan, C., and Mohammed, A. (2016). Rheological properties of piezoresistive smart cement slurry modified with Iron oxide nanoparticles for oil well applications.”  ASTM, Journal of testing and Evaluation.
  8. Vipulanandan, C., and Mohammed, A. (2015). Smart cement modified with iron oxide nanoparticles to enhance the piezoresistive behavior and compressive strength for oil well applications.” Journal of Smart Materials and Structures, 24, 1-11.
  9. Vipulanandan, C., and Mohammed, A. (2015). Smart cement rheological and piezoresistive behavior for oil well applications.” Petroleum Science and Engineering, 135, 50–58.
  10. Vipulanandan, C., and Mohammed, A. (2015). XRD and TGA, Swelling and Compacted Properties of Polymer Treated Sulfate Contaminated CL Soil.”  ASTM, Journal of testing and Evaluation.
  11. Mohammed, A. and Vipulanandan, C. (2015). “Testing and Modeling the Short - Term Behavior of Lime and Fly Ash Treated Sulfate Contaminated CL Soil, Geotechnical and Geological Engineering, 32, 71-83.
  12. Vipulanandan, C. and Mohammed, A. (2015). “Effect of nanoclay on the electrical resistivity and rheological properties of smart and sensing bentonite drilling muds.” Petroleum Science and Engineering, doi:10.1016/j.petrol.2015.03.020.
  13. Mohammed, A. and Vipulanandan, C. (2014). “Compressive and tensile behavior of polymer treated sulfate contaminated CL soil, Geotechnical and Geological Engineering, 32, 71-83.
  14. Vipulanandan, C. and Mohammed, A. (2014). “Hyperbolic rheological model with shear stress limit for acrylamide polymer modified bentonite drilling muds.” Petroleum Science and Engineering, 122, 38–47.

Conference Publications:

  1. Vipulanandan, C. and Mohammed, A. 2017. Smart Cement Modified with Laponite for Real-Time Monitoring of Oil Well Cementing Applications. AADE-17-NTCE-126. p11.
  2. Vipulanandan, C., Mohammed, A., R. G. Samuel. 2017. Smart Bentonite Drilling Muds Modified with Iron Oxide Nanoparticles and Characterized Based on the Electrical Resistivity and Rheological Properties with Varying Magnetic Field Strengths and Temperatures. Offshore Technology Conference. OTC-27626-MS. p.17.
  3. Vipulanandan, C., Mohammed, A., 2016. Smart cement modified with nano silica for real-time monitoring of oil well-cementing applications. Offshore Technology Conference. OTC-27097-MS. p.15.
  4. Vipulanandan, C., Mohammed, A., 2016. Nanoclay modified drilling muds for HPHT applications. AADE-16-FTCE-85. p11.
  5. Vipulanandan, C., Mohammed, A., 2016. Field Test for Real-Time Monitoring of Piezoresistive Smart Cement to Verify the Cementing Operations. Offshore Technology Conference. OTC-27060-MS. p11.
  6. C. Vipulanandan, and Mohammed, A. (2015).” Nanoparticle Modified Smart Oil Well Cement for Monitoring Cementing Applications.” American Association of Drilling Engineers, AADE-15-NTCE-06.
  7. C. Vipulanandan, and Mohammed, A. (2015).” Hydraulic Fracturing Fluid Modified with Nanosilica Proppant and Salt Water for Shale Rocks.” American Association of Drilling Engineers, AADE-15-NTCE-38.
  8. C. Vipulanandan, R. Krishnamoorti and A. Mohammed, CIGMAT-University of Houston (2015).” Iron Nanoparticle Modified Smart Cement for Real-Time Monitoring of Ultra-Deepwater Oil Well Cementing Applications”. Offshore Technology Conference, OTC 25100-MS.
  9. C. Vipulanandan, B. Basirat, and A. S. Mohammed. (2014).” New Kinetic Model to Characterize the Filter Cake Formation and Fluid Loss in HPHT Process.  Offshore Technology Conference, OTC 25100-MS.
  10. Vipulanandan, C. and Mohammed, A. (2014). Characterizing the Hydraulic Fracturing Fluid Modified with Nano Silica Proppant.” American Association of Drilling Engineers, AADE-14-FTCE-39.
  11. Vipulanandan, C. and Mohammed, A. (2013).” characterizing the behavior of polymer and lime-treated sulfate contaminated cl soil” CIGMAT-2013 Conference & Exhibition.
  12. Vipulanandan, C. and Mohammed, A. (2012)” Characterizing the Behavior of Sulfate Soil” ASCE Geotechnical Conference.
  13. Khalid, A. and Mohammed, A. (2004)” Assessment of The Efficiency of The Treated Gypseous Soil Blanket in Controlling the Behavior of Footings Erected on Gypseous Soils. (Field Study” International Conference on Geotechnical Engineering, Sharjah - UAE.
  14. Ahmed S. Mohammed and C. Vipulanandan (2014). “Effect of Calcium Sulfate Contamination on the Resistivity and Rheological Properties of Bentonite Drilling Mud.” THC-IT-2014 Conference & Exhibition.
  15. Ahmed S. Mohammed and C. Vipulanandan (2014). “Modeling the Effect of Nanoclay on the Fluid Loss of Drilling Mud.” CIGMAT-2014 Conference & Exhibition.
  16. Ahmed S. Mohammed and C. Vipulanandan (2014). “Effect of Temperature on the Transport Properties of Hydraulic Fracturing Fluid through Fractured Sandstone.” CIGMAT-2014 Conference & Exhibition.
  17. Ahmed S. Mohammed and C. Vipulanandan (2013). “Effect of Oil Contamination and Temperature on the Resistivity of Drilling Mud.” THC-IT-2013 Conference & Exhibition.
  18. Ahmed S. Mohammed and C. Vipulanandan (2013). “Range of Rheological Properties for Bentonite Drilling Muds.” CIGMAT-2013 Conference & Exhibition.
  19. Ahmed S. Mohammed and C. Vipulanandan (2012). “Permeability of Polymer Modified Sulfate Contaminated CL Soil.” THC-IT-2012 Conference & Exhibition.
  20. Ahmed S. Mohammed and C. Vipulanandan (2012). “Behavior of Polymer Modified Expansive CH Soil.” CIGMAT-2012 Conference & Exhibition.
  21. Ahmed S. Mohammed and C. Vipulanandan (2012). “Characterizing the Behavior of Sulfate Contaminated CL Soil.” CIGMAT-2012 Conference & Exhibition.
  22. Ahmed S. Mohammed and C. Vipulanandan (2011). “Suction Pressure -Water Content Relationship for a Laboratory Compacted MH Soil.” CIGMAT-2011 Conference & Exhibition.
  23. Ahmed S. Mohammed and C. Vipulanandan (2011). “Behavior of Oil Contaminated CL Soil.” THC-IT-2011 Conference & Exhibition.
  24. Vipulanandan, C., Mohammed, A., A. S. Ganpatye. 2018. Smart Cement Performance Enhancement with NanoAl2O3for Real-Time Monitoring Applications Using Vipulanandan Models. Offshore Technology Conference. OTC-28880-MS. p.15. (https://www.onepetro.org/conference-paper/OTC-28880-MS).
  25. Vipulanandan, C., Mohammed, A., R. G. Samuel. 2018. Fluid Loss Control in Smart Bentonite Drilling Mud Modified with Nanoclay and Quantified with Vipulanandan Fluid Loss Model. Offshore Technology Conference. OTC-28947-MS. p.17. (https://doi.org/10.4043/28947-MS). 

Achievements: