An Integrated Experimental Method to Investigate Tool-Less Temporary-Plugging Multistage Acid Fracturing of Horizontal Well by Using Self-Degradable Diverters
- Lufeng Zhang (China University of Petroleum, Beijing) | Fujian Zhou (China University of Petroleum, Beijing) | Jianye Mou (China University of Petroleum, Beijing) | Wei Feng (Universita degli studi di Padova) | Zhun Li (China University of Petroleum, Beijing) | Shicheng Zhang (China University of Petroleum, Beijing)
- Document ID
- Society of Petroleum Engineers
- SPE Journal
- Publication Date
- June 2020
- Document Type
- Journal Paper
- 1,204 - 1,219
- 2020.Society of Petroleum Engineers
- 3D printing, true triaxial fracturing, multistage acid fracturing, temporary plugging, self-degradable diverters
- 17 in the last 30 days
- 85 since 2007
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Tool-less temporary-plugging multistage acid fracturing of horizontal well is a necessary technology to unlock the production potential and enable commercial productivity for tight carbonate reservoirs. However, this technique has not been investigated experimentally yet, and the plugging behavior of diverters within acid-etched fracture is still unclear. In this paper, we propose an integrated method to experimentally study tool-less multistage fracturing with diverters. First, we introduce an innovative 3D printing method to reproduce the roughness of acid-etched fracture surface and design an acid-etched fracture temporary plugging evaluation system to satisfy the requirements of temporary plugging experiments. Then, we conduct a series of plugging experiments to optimize the diverter’s formula for creating a tight plugging zone within an acid-etched fracture under different fracture widths. On the basis of the description of the fracture surface, we further analyze the formation process and mechanism of temporary plugging. Finally, we further verify through laboratory experiments using a modified true tri-axial fracturing system the feasibility of using a single type of diverter and combined diverters to achieve tool-less temporary plugging staged fracturing of horizontal well. The experimental results show the following findings: (1) Pure fibers can realize temporary plugging at lower fracture width (≤2 mm). (2) To achieve temporary plugging, the diameter of particulates should not be less than half of the fracture width under the condition of larger fracture width (≥4 mm). (3) The fracture surface morphology affects the formation time of temporary plugging, but does not affect whether temporary plugging is formed or not. (4) Using a steel plate with a smooth fracture surface to conduct optimization experiments will increase the dosage of diverters, thus increasing the operation cost. (5) Pure particulates cannot achieve favorable plugging effect. This study provides an insight into multistage acid fracturing.
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Ahmed, Z., Al-Muhanna, D., Prakash, R. et al. 2018. High Rate Matrix Acidizing Technique Using Innovative Diverter Technologies to Restore and Improve Well Performance in North Kuwait Jurassic Gas NKJG. Paper presented at the SPE/IADC Middle East Drilling Technology Conference and Exhibition, Abu Dhabi, UAE, 29–31 January. SPE-189409-MS. https://doi.org/10.2118/189409-MS.
Clason, C. E. 1936. Acid Treatment of Wells. US Patent No. 1122–452.
Cohen, C. E., Tardy, P. M. J., Lesko, T. M. et al. 2010. Understanding Diversion with a Novel Fiber-Laden Acid System for Matrix Acidizing of Carbonate Formations. Paper presented at the SPE Annual Technical Conference and Exhibition, Florence, Italy, 19–22 September. SPE-134495-MS. https://doi.org/10.2118/134495-MS.
Cortez-Montalvo, J., Vo, L., Inyang, U. et al. 2015. Early Steps Towards Laboratory Evaluation of Diversion in Hydraulic Fractures. Paper presented at the International Petroleum Technology Conference, Doha, Qatar, 6–9 December. IPTC-18262-MS. https://doi.org/10.2523/IPTC-18262-MS.
Dominguez, G. C. 1992. Carbonate Reservoir Characterization: A Geologic-Engineering Analysis, Vol. 30. Amsterdam, The Netherlands: Elsevier.
Economides, M. J. and Nolte, K. G. 2003. Reservoir Stimulation, third edition. New York City, New York, USA: John Wiley & Sons, Inc.
Gomaa, A. M., Nino-Penaloza, A., Castillo, D. et al. 2016. Experimental Investigation of Particulate Diverter Used to Enhance Fracture Complexity. Paper presented at the SPE International Conference and Exhibition on Formation Damage Control, Lafayette, Louisiana, USA, 24–26 February, SPE-178983-MS. https://doi.org/10.2118/178983-MS.
Gonzalez, D., Ulloa, J., Safari, R. et al. 2017. State of the Art Biodegradable Diversion Technology Applied on Tight Carbonates Reservoir Leads to Maximized Production. Paper presented at the Abu Dhabi International Petroleum Exhibition and Conference, Abu Dhabi, UAE, 13–16 November. SPE-188632-MS. https://doi.org/10.2118/188632-MS.
Guo, T., Zhang, S., Qu, Z. et al. 2014. Experimental Study of Hydraulic Fracturing for Shale by Stimulated Reservoir Volume. Fuel 128: 373–380. https://doi.org/10.1016/j.fuel.2014.03.029.
Holditch, S. A. 2009. SS: Unlocking the Unconventional Oil and Gas Reservoirs: Stimulation of Tight Gas Sands. Paper presented at the Offshore Technology Conference, Houston, Texas, USA, 4–7 May. OTC-20267-MS. https://doi.org/10.4043/20267-MS.
Hou, B., Zhang, R., Chen, M. et al. 2019. Investigation on Acid Fracturing Treatment in Limestone Formation Based on True Tri-Axial Experiment. Fuel 235: 473–484. https://doi.org/10.1016/j.fuel.2018.08.057.
Huang, J., Safari, R., and Fragachan, F. E. 2018. Applications of Self-Degradable Particulate Diverters in Wellbore Stimulations: Hydraulic Fracturing and Matrix Acidizing Case Studies. Paper presented at the SPE International Hydraulic Fracturing Technology Conference and Exhibition, Muscat, Oman, 16–18 October. SPE-191408-18IHFT-MS. https://doi.org/10.2118/191408-18IHFT-MS.
Kang, Y., Yu, H., Xu, C. et al. 2015. An Optimal Design for Millimeter-Wide Facture Plugging Zone. Nat Gas Ind B 2 (1): 113–119. https://doi.org/10.1016/j.ngib.2015.02.011.
Kefi, S., Lee, J. C., Shindgikar, N. D. et al. 2010. Optimizing in Four Steps Composite Lost-Circulation Pills Without Knowing Loss Zone Width. Paper presented at the IADC/SPE Asia Pacific Drilling Technology Conference and Exhibition, Ho Chi Minh City, Vietnam, 1–3 November. SPE-133735-MS. https://doi.org/10.2118/133735-MS.
Li, G., Sheng, M., Tian, S. et al. 2012. Multistage Hydraulic Jet Acid Fracturing Technique for Horizontal Wells. Pet Explor Dev 39 (1): 107–112. https://doi.org/10.1016/S1876-3804(12)60021-4.
Liu, N., Zhang, Z., Zou, Y. et al. 2018. Propagation Law of Hydraulic Fractures during Multi-Staged Horizontal Well Fracturing in a Tight Reservoir. Pet Explor Dev 45 (6): 1129–1138. https://doi.org/10.1016/S1876-3804(18)30116-2.
Malik, A. R., Asiri, M. A., Ogundare, T. M. et al. 2018. Successful Implementation of Multi-Modal, Self-Assembling, Self-Degradable and Environmentally Friendly Solids Particulates as Diverter in Acid Stimulation Treatments in Carbonate Reservoirs. Paper presented at the SPE/IADC Middle East Drilling Technology Conference and Exhibition, Abu Dhabi, UAE, 29–31 January. SPE-189420-MS. https://doi.org/10.2118/189420-MS.
Middleton, R. S., Gupta, R., Hyman, J. D. et al. 2017. The Shale Gas Revolution: Barriers, Sustainability, and Emerging Opportunities. Appl Energy 199: 88–95. https://doi.org/10.1016/j.apenergy.2017.04.034.
Mou, J., Hui, X., Wang, L. et al. 2018. Experimental Investigation on Tool-Free Multi-Stage Acid Fracturing of Open-Hole Horizontal Wells by Using Diversion Agents. Paper presented at the SPE International Hydraulic Fracturing Technology Conference and Exhibition, Muscat, Oman, 16–18 October. SPE-191415-18IHFT-MS. https://doi.org/10.2118/191415-18IHFT-MS.
Potapenko, D. I., Tinkham, S. K., Lecerf, B. et al. 2009. Barnett Shale Refracture Stimulations Using a Novel Diversion Technique. Paper presented at the SPE Hydraulic Fracturing Technology Conference, The Woodlands, Texas, USA, 19–21 January. SPE-119636-MS. https://doi.org/10.2118/119636-MS.
Quevedo, M., Tellez, F., Torres, R. et al. 2012. An Innovative Solution to Optimizing Production in Naturally Fractured Carbonate Reservoirs in Southern Mexico. Paper presented at the SPE Latin America and Caribbean Petroleum Engineering Conference, Mexico City, Mexico, 16–18 April. SPE-152554-MS. https://doi.org/10.2118/152554-MS.
Ray, B., Lewis, C., Martysevich, V. et al. 2017. An Investigation into Proppant Dynamics in Hydraulic Fracturing. Paper presented at the SPE Hydraulic Fracturing Technology Conference and Exhibition, The Woodlands, Texas, USA, 24–26 January. SPE-184829-MS. https://doi.org/10.2118/184829-MS.
Rui, Z., Cui, K., Wang, X. et al. 2018. A Comprehensive Investigation on Performance of Oil and Gas Development in Nigeria: Technical and Non-Technical Analyses. Energy 158: 666–680. https://doi.org/10.1016/j.energy.2018.06.027.
Safari, R., Shahri, M. P., Smith, C. et al. 2017. Analysis and Design Method for Particulate Diversion in Carbonate Acidizing. Paper presented at the SPE Eastern Regional Meeting, Lexington, Kentucky, USA, 4–6 October. SPE-187525-MS. https://doi.org/10.2118/187525-MS.
Shirley, R. M. and Hill, A. D. 2019. Experimental Investigation of Particulate Polylactic Acid Diversion in Matrix Acidizing. Paper presented at the SPE International Conference on Oilfield Chemistry, Galveston, Texas, USA, 8–9 April. SPE-193565-MS. https://doi.org/10.2118/193565-MS.
U.S. Energy Information Administration (EIA). 2018. Annual Energy Outlook 2018 with Projections to 2050. Washington, DC: US EIA (February 2018).
Wang, D. 2017. Diverting Mechanism and Its Law of Temporary Plugging in Hydraulic Fracturing. Doctoral dissertation, China University of Petroleum (Beijing), Beijing, China.
Wang, D., Zhou, F., Ding, W. et al. 2015a. A Numerical Simulation Study of Fracture Reorientation with a Degradable Fiber-Diverting Agent. J Nat Gas Sci Eng 25: 215–225. https://doi.org/10.1016/j.jngse.2015.05.002.
Wang, D., Zhou, F., Ge, H. et al. 2015b. An Experimental Study on the Mechanism of Degradable Fiber-Assisted Diverting Fracturing and Its Influencing Factors. J Nat Gas Sci Eng 27: 260–273. https://doi.org/10.1016/j.jngse.2015.08.062.
Williams, V., McCartney, E., and Nino-Penaloza, A. 2016. Far-Field Diversion in Hydraulic Fracturing and Acid Fracturing: Using Solid Particulates to Improve Stimulation Efficiency. Paper presented at the SPE Asia Pacific Hydraulic Fracturing Conference, Beijing, China, 24–26 August. SPE-181845-MS. https://doi.org/10.2118/181845-MS.
Xiong, C., Shi, Y., Zhou, F. et al. 2018. High Efficiency Reservoir Stimulation Based on Temporary Plugging and Diverting for Deep Reservoirs. Pet Expl Dev 45 (5): 948–954. https://doi.org/10.1016/S1876-3804(18)30098-3.
Yang, C., Zhou, F., Feng, W. et al. 2019. Plugging Mechanism of Fibers and Particulates in Hydraulic Fracture. J Pet Sci Eng 176: 396–402. https://doi.org/10.1016/j.petrol.2019.01.084.
Yao, B., Ding, Q., Hou, Y. et al. 2018. A New Openhole Multistage Hydraulic Fracturing System and the Ball Plug Motion in a Horizontal Pipe. J Nat Gas Sci Eng 50: 11–21. https://doi.org/10.1016/j.jngse.2017.11.019.
Yekeen, N., Padmanabhan, E., Idris, A. K. et al. 2019. Nanoparticles Applications for Hydraulic Fracturing of Unconventional Reservoirs: A Comprehensive Review of Recent Advances and Prospects. J Pet Sci Eng 178: 41–73. https://doi.org/10.1016/j.petrol.2019.02.067.
Zhang, L., Zhou, F., Mou, J. et al. 2018a. A New Method to Improve Long-Term Fracture Conductivity in Acid Fracturing Under High Closure Stress. J Pet Sci Eng 171: 760–770. https://doi.org/10.1016/j.petrol.2018.07.073.
Zhang, L., Zhou, F., Wang, J. et al. 2018b. An Experimental Investigation of Long-Term Acid Propped Fracturing Conductivity in Deep Carbonate Reservoirs. Paper presented at the 52nd US Rock Mechanics/Geomechanics Symposium, Seattle, Washington, USA, 17–20 June. ARMA-2018-545.
Zhang, L., Zhou, F., Feng, W. et al. 2019a. Experimental Study on Plugging Behavior of Degradable Fibers and Particulates within Acid-Etched Fracture. J Pet Sci Eng (in press; available online 4 September 2019). https://doi.org/10.1016/j.petrol.2019.106455.
Zhang, L., Zhou, F., Mou, J. et al. 2019b. Large-Scale True Tri-Axial Fracturing Experimental Investigation on Diversion Behavior of Fiber using 3D Printing Model of Rock Formation. J Pet Sci Eng 181: 106171. https://doi.org/10.1016/j.petrol.2019.06.035.
Zhang, L., Zhou, F., Zhang, S. et al. 2019c. Investigation of Water-Sensitivity Damage for Tight Low-Permeability Sandstone Reservoirs. ACS Omega 4 (6): 11197–11204. https://doi.org/10.1021/acsomega.9b01286.
Zhang, L., Zhou, F., Zhang, S. et al. 2019d. Evaluation of Permeability Damage Caused by Drilling and Fracturing Fluids in Tight Low Permeability Sandstone Reservoirs. J Pet Sci Eng 175: 1122–1135. https://doi.org/10.1016/j.petrol.2019.01.031.
Zhou, F., Yi, X., Yang, X. et al. 2014. Experimental Study on Dynamic Filtration of Temporary Plugging Artificial Fracture with Enhanced Recovery Fiber. Drill Prod Technol 37 (4): 83–86. https://doi.org/10.1016/j.petrol.2019.106455.
Zou, Y., Zhang, S., Zhou, T. et al. 2016. Experimental Investigation into Hydraulic Fracture Network Propagation in Gas Shales Using CT Scanning Technology. Rock Mech Rock Eng 49 (1): 33–34. https://doi.org/10.1007/s00603-015-0720-3.