Robust Chemical Dissolver for Reservoir Stimulation and Formation Damage Remediation
- Sai Ravindra Panuganti (Petroliam Nasional Berhad PETRONAS) | Sanjay Misra (Petroliam Nasional Berhad PETRONAS) | Intan Khalida Salleh (Petroliam Nasional Berhad PETRONAS) | Jamal Mohamad M. Ibrahim (Petroliam Nasional Berhad PETRONAS) | Mohamad Azmeer Rodzali (Petroliam Nasional Berhad PETRONAS)
- Document ID
- International Petroleum Technology Conference
- International Petroleum Technology Conference, 13-15 January, Dhahran, Kingdom of Saudi Arabia
- Publication Date
- Document Type
- Conference Paper
- 2020. International Petroleum Technology Conference
- inorganic, mixed deposit, microemulsion, matrix acidizing, organic
- 7 in the last 30 days
- 47 since 2007
- Show more detail
- View rights & permissions
|SPE Member Price:||USD 7.00|
|SPE Non-Member Price:||USD 23.00|
The process of matrix acidizing, despite being one of the oldest operations in the petroleum industry, is still a challenge for tight carbonate reservoirs. This project considers the development of a multi-functional environment friendly chemical, for reservoir stimulation and formation damage remediation.
A microemulsion solution of biodegradable chelating agent is formulated, which is effective for tight carbonate reservoir stimulation even at high temperature. Together with the chelate based inorganic dissolver, aromatic naphtha as an organic dissolver is the other main active ingredient in the proposed microemulsion formulation. For this reason, the microemulsion solution can also be used to treat inorganic and organic mixed deposits which can involve in formation damage. The developed multi-application chemical is later tested for compatibility with reservoir fluids and production chemicals encountered during well flow back.
Formulations with low reactivity are required when the injection of stimulant is not possible at high rate. By making microemulsion with chelate, the reactivity and diffusivity of the chelating agent can be controlled further. Core flooding experiments on core samples from high pressure, high temperature and tight carbonate formation, are conducted to demonstrate wormhole formation during the matrix acidizing treatment with the formulated microemulsion. The synthesized stable microemulsion chemical is also subjected for detailed dissolution study on deep wellbore deposits of different composition from different fields. These inorganic and organic mixed deposits are otherwise hard to be remediated by aqueous or organic solvent alone.
The novelty of this article is in developing a chelate based microemulsion as the main stimulation fluid. Another uniqueness of the microemulsion solution is in the treatment of formation damage causing deposit species which are mixed in nature, without the need of any additives.
|File Size||888 KB||Number of Pages||14|
Al-Taq, A. A., Muhaish, S. A., Nakhli, M. M. and Alrustum, A. A. 2015. Organic/Inorganic Deposition in Oil Producing Wells from Carbonate Reservoirs: Mechanisms, Removal and Mitigation. Presented at the Abu Dhabi International Petroleum Exhibition and Conference, Abu Dhabi, UAE. 9-12 November. SPE-177447-MS. https://doi.org/10.2118/177447-MS.
Bera, A. and Mandal, A. 2015. Microemulsions: A Novel Approach to Enhanced Oil Recovery: A Review. Journal of Petroleum Exploration and Production Technology 5(3):255-268. https://doi.org/10.1007/s13202-014-0139-5.
Brege, J. J., El-Sherbeny, W. I. A., Quintero, L. and Jones, T. A. 2012. Using Microemulsion Technology to Remove Oil-based Mud in Wellbore Displacement and Remediation Applications. Presented at the North Africa Technical Conference and Exhibition, Cairo, Egypt. 20-22 February. SPE-150237-MS. https://doi.org/10.2118/150237-MS.
Carvalho, R. T. R., Oliveira, P. F., Palermo, L. C. M., Ferreira, A. A. G. and Mansur, C. R. E. 2019. Prospective Acid Microemulsions Development for Matrix Acidizing Petroleum Reservoirs. Fuel 238:75-85. https://doi.org/10.1016/j.fuel.2018.10.003.
de Wolf, C. A., Bang, E., Bouwman, A., Braun, W., de Oliveira, E. and Nasr-El-Din, H. 2014. Evaluation of Environmentally Friendly Chelating Agents for Applications in the Oil and Gas Industry. Presented at the SPE International Symposium and Exhibition on Formation Damage Control, Lafayette, Louisiana, USA. 26-28 February. SPE-168145-MS. https://doi.org/10.2118/168145-MS.
Fan, C., Shi, W., Zhang, P., Lu, H., Zhang, N., Work, S., Al-Saiari, H. A., Kan, A. T. and Tomson, M. B. 2012. Ultrahigh-Temperature/Ultrahigh-Pressure Scale Control for Deepwater Oil and Gas Production. SPE Journal 17(1):177-186. SPE-141349-PA. https://doi.org/10.2118/141349-PA.
Fredd, C. N. and Fogler, H. S. 1998. Influence of Transport and Reaction on Wormhole Formation in Porous Media. AICHE Journal 44(9):1933-1949. https://doi.org/10.1002/aic.690440902.
Fredd, C. N., Hoefner, M. L. and Fogler, H. S. 2017. Microemulsion Applications in Carbonate Reservoir Stimulation. In Karunaratne, D. N. (editor) Properties and Uses of Microemulsions. IntechOpen. pp31-51. DOI: 10.5772/65973.
Hoar, T. P. and Schulman, J. H. 1943. Transparent Water-in-Oil Dispersions: The Oleopathic Hydro-Micelle. Nature 152:102-103. https://doi.org/10.1038/152102a0.
Mahmoud, M. A., Nasr-El-Din, H. A., de Wolf, C. A., LePage, J. N. and Bemelaar, J. H. 2011. Evaluation of a New Environmentally Friendly Chelating Agent for High-Temperature Applications. SPE Journal 16(3):559-574. SPE-127923-PA. https://doi.org/10.2118/127923-PA.
Pinto, I. S., Neto, I. F. and Soares, H. M. 2014. Biodegradable Chelating Agents for Industrial, Domestic, and Agricultural Applications - A Review. Environmental Science and Pollution Research 21(20):11893-906. https://doi.org/10.1007/s11356-014-2592-6.
Punnapala, S., Rahman, M. A. and Misra, S. 2014. Challenge of Acidizing Horizontal Wells in Tight Carbonate Reservoirs - Weak Acid and Non-acid Alternates. Presented at the Abu Dhabi International Petroleum Exhibition and Conference, Abu Dhabi, UAE. 10-13 November. SPE-171766-MS. https://doi.org/10.2118/171766-MS.
Quintero, L. and Carnahan, N. F. 2013. Microemulsions for Cleaning Applications. In Kohli, R. and Mittal, K. L. (editors) Developments in Surface Contamination and Cleaning. William Andrew Publishing. pp:65-106. https://doi.org/10.1016/B978-1-4377-7879-3.00002-9.
Quintero, L., Ponnapati, R. and Felipe, M. J. 2017. Cleanup of Organic and Inorganic Wellbore Deposits Using Microemulsion Formulations: Laboratory Development and Field Applications. Presented at the Offshore Technology Conference, Houston, Texas, USA. 1-4 May. OTC-27653-MS. https://doi.org/10.4043/27653-MS.
Reed, R. L. and Healy, R. N. 1977. Some Physicochemical Aspects of Microemulsion Flooding: A Review. In Shah, D. O. and Schechter, R. S. (editors) Improved Oil Recovery by Surfactant and Polymer Flooding. Academic Press Inc. pp.383-437. https://doi.org/10.1016/B978-0-12-641750-0.50017-7.
Schulman, J. H., Stoeckenius, W. and Prince, L. M. 1959. Mechanism of Formation and Structure of Micro Emulsions by Electron Microscopy. Journal of Physical Chemistry 63(10):1677-1680. https://doi.org/10.1021/j150580a027.
Sharma, M. K. and Shah, D. O. 1985. Macro- and Microemulsions in Enhanced Oil Recovery. In Shah, D. O. (editor) Macro- and Microemulsions Theory and Applications. American Chemical Society. pp:149-172. https://doi.org/10.1021/bk-1985-0272.ch011.
Solans, C. and García-Celma, M. J. 1997. Surfactants for Microemulsions. Current Opinion in Colloid & Interface Science 2(5):464-471. https://doi.org/10.1016/S1359-0294(97)80093-3.
Tavakkoli, M., Panuganti, S. R., Taghikhani, V., Pishvaie, M. R. and Chapman, W. G. 2013. Precipitated Asphaltene Amount at High-Pressure and High-Temperature Conditions. Energy & Fuels 28(3):1596-1610. https://doi.org/10.1021/ef401074e.
Winsor, P. A. 1948. Hydrotropy, Solubilisation and Related Emulsification Processes. Transactions of the Faraday Society 44:376-398. https://doi.org/10.1039/TF9484400376.