Evaluation of Main Pay- Zubair Formation after Operations Re-Injection of Produced Water Directly In Rumaila Oil Field Norths under Matrix Condition


  • Ali Farhan Nader Laboratory and Quality Control Department - Basra Oil Company
  • Rana Muhammad Jassim Laboratory and Quality Control Department - Basra Oil Company
  • Walid Mahdi Saleh Laboratory and Quality Control Department - Basra Oil Company
  • Mahdi Saleh Abdullah Laboratory and Quality Control Department - Basra Oil Company
  • Ali Qassem Atwan Laboratory and Quality Control Department - Basra Oil Company




Produced water re-injection, Impairment permeability, Formation damage, Damage zone, Monitor damage


The water injection program is a key part of Rumaila oilfield long-term development plan to raise pressure levels in reservoirs. This water injection program has involved project of produced water re-injection (PWRI) directly. Although PWRI is most economical method for disposal of produced water and reduces environmental pollution risks but it can causes impairment in formation permeability due to contain it on suspended and dissolved solids that can plug porous media. Therefore, it is essential conduct fluid-rocks compatibility experiments and analysis to evaluation PWRI. The experimental work was carried out in Department of Laboratory and Quality Control in Basra Oil Company, using waterflooding apparatus. The compatibility experiments were applied on five core selected from Main Pay - Zubair formation that has very high permeability with 40 liter produced water at North-Rumaila oilfield. The main purpose of this work is evaluation of PWRI by studying the reduction of permeability(formation damage). The maximum damage degree is 71% and the minimum damage degree is 55% with average value 68.2%. The main causes to impairment permeability are present high concentration from suspended solids in PW.  The damage is start from maximum degree  near wellbore and  gradually decreasing away from injection well and the permeability start jump up. The damage zone is propagate symmetrical around axial wellbore injector and connect together formed roughly circular dish. In this paper we establish table of monitor for help to minimize formation damage.  Based on these results, we can concludes, direct injection of produced water into Zubair formation without surface treatments or  washing of formation or acidizing treatment  or injection under fracture conditions causes formation damage and increases with time.


James T. Smith and WiUiam M. Cobb, Water Flooding, 1997.

Palsson B., Davies D.R., Todd A.C. and Somerville J.M., “The Water Injection Process: A Technical and Economic Integrated Approach”, Chemical Engineering Research and Design, Volume 81, Issue 3, Pages 333-341, 2003.

Marc M., Sebastien P. and Erwan B., “Produced-Water Reinjection in Deep Offshore Miocene Reservoirs”, Block 17, Angola, SPE Prod & Oper 35 (02): 292–307. Paper Number: SPE-197061-PA, 2020.

Ojukwu K.I. and Van den Hoek P.J., “A New Way to Diagnose Injectivity Decline during Fractured Water Injection by Modifying Conventional Hall Analysis”, Paper Number: SPE-89376-MS, 2004.

Faruk C., “Formation Damage”. Gulf Publishing Company, Houston, Texas, 2000.

Bennion D. B., Thomas F. B., Imer D., and Ma T., “Low Permeability Gas Reservoirs and Formation Damage -Tricks and Traps”, SPE 59753, 2000.

Yang Sh., Sheng Zh., Liu W., Song Zh., Wu M. and Zhang J., “Evaluation and Prevention of Formation Damage in Offshore Sandstone Reservoirs in China”, Pet.Sci.,5:340-347, 2008.

Mohamed S. N., Abdulrrazag Y. Z., and Amer A. A., “Causes of Formation Damage and Guidelines for Remadial Treatment for Western Sirte Bain Libyan carbonate oil reservoirs”, 6th International Conference on Biological, Chemical & Environmental Sciences (BCES-2016) August 8-9, 2016 Pattaya (Thailand).

Elkatatny S., Farid A., Mohamed I., Abou-Sayed OA. and Block GI., “Formation Damage Evaluation of Produced Water Re-Injection Using an Advanced Software in Vertical and Horizontal Wells”, Petroleum & Petrochemical Engineering Journal. Volume 1 Issue 1, 2017.

Ibidapo O., Fashanu T. A., Peter O. I., Tope O. A. and Kingsley E. A., “Produced water re-injection in a non-fresh water aquifer with geochemical reaction, hydrodynamic molecular dispersion and adsorption kinetics controlling: model development and numerical simulation”, Appl Water Sci. DOI 10.1007/s13201-016-0490-4, 2016.

Ali R., Hassan G., Saeed A., and Abbas Sh., “An Experimental Investigation of Different Formation Waters and Injection Water Incompatibility to Obtain the Optimum Water Mixing Ratio in Injection Processes”, Journal of Petroleum Science and Technology. 6(1), 63-72, 2016.

Bisweswar G., Liying S. and Nithin Ch. Th., “Compatibility Evaluation of Modified SeaWater for EOR in Carbonate Reservoirs Through the Introduction of Polyphosphate Compound”, Petroleum Science, 2019. https://doi.org/10.1007/s12182-019-00380-6.

Slavko N. Anatoly Z. , Vladimir M., Dragan G. and Afshin D., “An Analytical Model to Predict the Effects of Suspended Solids in Injected Water on the Oil Displacement Efficiency during Water flooding”, Processes 2020, 8, 659; doi:10.3390/pr8060659.

https://petrowiki.spe.org/ Formation Damage in Injection wells.

Naglaa Sh. M., Abdul Amir M. F., Abdul Zahra Z. K. and Suad M. H., “Study of Compatibility of Water of Garmat Ali with Rocks of Northern Rumaila field, (Mushrif Formation)”, Report (548), Basra Oil Company, 1980.

Naglaa Sh. M., Suad M. H., Abdul Zahra Zora Kazem and Yahya Majman ,“Study of Compatibility of Water of Garmat Ali with Rocks of Northern Rumaila field,( Mushrif Formation)”, Report (608), Basra Oil Company, 1980.

Naglaa Sh. M., “Redaction Permeability through Water Injection (Causes and Treatment)”, Report (677), Basra Oil Company, 1980.

Ali F. N., Huda F. K., Kamal D. J., Madhi A.R, Swadi AL- Maliki, “Mathematical Models Describing the Effect of Overburden Pressure on Porosity And Permeability of Reservoir Rocks of Upper Shale Member for South Rumelia and upper sandston (3 rd pay) member for Zubair Oil Field”, Journal of Petroleum Research and Studies, No. 31, June 2021, pp.1-16.

Steve C., “Petrophysics: A Practical Guide Wiley & Sons”, Ltd. Published 2016 by John Wiley & Sons, Ltd. First Edition, 2016.

Paul W.J. G., Petrophysics MSc Course Notes, University Laval, Canada.

Adam E., “Impact of Formation Damage Due to Perforations on Well Productivity. Master thieses”, Morgantown, West Virginia, 2017.

Hayder K., Mohanad H., Hussein almalikee, “Geochemical Study for the Upper Shale Member - Zubair Formation in Rumaila Oilfield, South Iraq”, International Journal of Mining Science (IJMS), Volume 4, Issue 4, PP 56-75, 2018.

Haider M. J. and Wathiq A., “Stress Regime of Rumaila Oilfield in Southern Iraq from Borehole Breakouts”, IOSR Journal of Applied Geology and Geophysics (IOSR-JAGG). Volume 6, Issue 4, PP 25-35, 2018.

Guoqing F. and MingLe Y., “Characterization of pore volume of cumulative water injection distribution”, Science Direct, Petroleum 1-6, 2015.

Kuiqian M., Ao Li, Shuhao G., Jieqiong P., Yongchao X., Zhonghao Zh., “Techniques for Improving the Water-Flooding of Oil Fields During the High Water-Cut Stage”, Oil & Gas Science and Technology, 2019.

Yang L. He, Guoxin G., L., and Yiliang L., “Simulation of Formation Damage after Long-Term Water Flooding”, Hindawi Publishing Corporation, Journal of Petroleum Engineering, Volume 2013, 2013. https://doi.org/10.1155/2013/479827.

JPT Technology Editor, “Best Practices for Waterflooding Optimization Improve Oil Recovery in Mature Fields”, J. Pet. Technol, 71 (01): 58–59, Paper Number: SPE-0119-0058-JPT, 2019. https://doi.org/10.2118/0119-0058-JPT Journal of Petroleum Technology.

Liu Yang, “Water Injection Study in a Block Cycle IOP Conf. Series: Earth and Environmental Science”, 170 022038, IOP Publishing, 2018.

Wenya L., Lianbo Z., Minzheng Ch., Dongsheng Q., Jianming F. and Dongling X., “An Approach for Determining the Water Injection Pressure of Low-permeability Reservoirs”, Energy Exploration & Exploitation, Vol. 36(5) 1210–1228, journals.sagepub.com/home/eea, 2018.




How to Cite

Nader, A. F. .; Jassim, R. M. .; Saleh, W. M. .; Abdullah, M. S. .; Atwan, A. Q. . Evaluation of Main Pay- Zubair Formation After Operations Re-Injection of Produced Water Directly In Rumaila Oil Field Norths under Matrix Condition. Journal of Petroleum Research and Studies 2022, 12, 13-36.