Reliability analysis of elastic graphite packer in heat injection well during oil shale in-situ conversion

Wei Guo, Haoche Shui, Zhao Liu, Yuan Wang, Jiawei Tu

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Heat injection well reaches temperatures above 400 ◦C during the process of heat injection, Heat injection is essential for oil shale in-situ conversion technology. The downhole of the and part of the high-temperature gas dissipates through the wellbore annulus. Consequently, in addition to causing energy loss, the dissipation causes thermal damage to the casing and wellhead. To avoid dissipation, components that are suitable for high-temperature environments should be sealed and used during heat injection while mining. Therefore, this study presents the design of a packer composed of elastic graphite rubber and a high-temperature-resistant material. The influence of numerous factors, such as downhole temperature, working load, and height of rubber, on the reliability of the packer was analyzed. Subsequently, the numerical simulation analysis of the packer reliability in in-situ conversion mining under high temperature and pressure environments was performed. The results indicate that when the operating temperature is stable, the operating load has the most obvious influence on the sealing reliability of the packer, whereas the change in the height of the rubber has the least significant effect on the maximum contact stress between the casing and rubber. The change in the operating temperature has the least significant effect on the overall sealing performance of the packer. Moreover, the rise of the temperature will increase the sealing reliability of the packer, and on the contrary, the drop in the temperature will decrease it.

Cited as: Guo, W., Shui, H., Liu, Z., Wang, Y., Tu, J. Reliability analysis of elastic graphite packer in heat injection well during oil shale in-situ conversion. Advances in Geo-Energy Research, 2023, 7(1): 28-38.


In-situ conversion, heat injection, graphite rubber, packer, reliability

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Bayata, F., Alpas, A. The high temperature wear mechanisms of iron-nickel steel (NCF 3015) and nickel based superalloy (inconel 751) engine valves. Wear, 2021, 480: 203943.

Bazkiaei, A., Shirazi, K., Shishesaz, M. Thermo-hyper-viscoelastic analysis of a rubber cylinder under cyclic deformation. Journal of Rubber Research, 2021, 24(1): 13-26.

Bica, I., Balasoiu, M., Sfirloaga, P. Effects of electric and magnetic fields on dielectric and elastic properties of membranes composed of cotton fabric and carbonyl iron microparticles. Results in Physics, 2022, 35: 105332.

Bondarenko, T., Cheremisin, A., Kozlova, E., et al. Experimental investigation of thermal decomposition of Bazhenov formation kerogen: Mechanism and application for thermal enhanced oil recovery. Journal of Petroleum Science and Engineering, 2017, 150, 288-296.

Champy, C., Le, S., Marco, Y., et al. Fatigue of crystallizable rubber: Generation of a haigh diagram over a wide range of positive load ratios. International Journal of Fatigue, 2021, 150: 106313.

Chasib, K. An investigation on the feasibility of using mixed reversible ionic liquids for extraction of kerogen from oil shale. Egyptian Journal of Petroleum, 2020, 29(1): 53-57.

Chen, T., Ma, W., Liu, S., et al. Analysis on mechanical influencing factors of fatigue behavior for the packer on pipe ram in snubbing unit. Engineering Failure Analysis, 2019, 103: 20-31.

Dong, B., Liu, W., Cheng, L., et al. Investigation on mechanical properties and corrosion behavior of rubber for packer in CO2-H2S gas well. Engineering Failure Analysis, 2021, 124(2): 105364.

Dong, L., Li, K., Li, B., et al. Study in deep shale gas well to prevent shoulder protruding packer with high pressure sealing. Engineering Failure Analysis, 2020a, 118: 104871.

Dong, L., Li, K., Zhu, X., et al. Study on high temperature sealing behavior of packer rubber tube based on thermal aging experiments. Engineering Failure Analysis, 2020b, 108: 104321.

Feng, K., Shao, T. The evolution mechanism of tribo-oxide layer during high temperature dry sliding wear for nickel-based superalloy. Wear, 2021, 476: 203747.

Gehrmann, K., Muhr, A. Displacement-controlled fatigue testing of rubber is not strain-controlled. International Journal of Fatigue, 2020, 145: 106083.

Guo, W., Wang, Z., Sun, Y., et al. Effects of Packer Locations on Downhole Electric Heater Performance: Experimental Test and Economic Analysis. Energies, 2020, 13(2): 377.

He, W., Sun, Y., Guo, W., et al. Controlling the in-situ conversion process of oil shale via geochemical methods: A case study on the Fuyu oil shale, China. Fuel Processing Technology, 2021, 219: 106876.

He, X., Shi, X., Hoch, M., et al. Mechanical properties of aramid fiber and carbon black filled hydrogenated nitrile rubber for packer compounds. Polymer Composites, 2017, 39(9): 3212-3226.

Heldt, S., Wang, B., Hu, L., Hornbruch, G., et al. Numerical investigation of a high temperature heat injection test. Journal of Hydrology, 2021, 597: 126229.

Hu, P., Madsen, J., Huang, Q., et al. Elastomers without covalent cross-linking: Concatenated rings giving rise to elasticity. ACS Macro Letters, 2020, 9(10): 1458-1463.

Hu, X., Banks, J., Wu, L., et al. Numerical modeling of a coaxial borehole heat exchanger to exploit geothermal energy from abandoned petroleum wells in Hinton, Alberta. Renewable Energy, 2019, 148: 1110-1123.

Jiao, K., Yun, F., Yan, Z. Optimization and experimental study of the subsea retractable connector rubber packer based on mooney-rivlin constitutive model, Marine Science and Engineering, 2021, 9(12): 1391.

Johnston, A., Lafond, G., May, W., et al. Opener, packer wheel and packing force effects on crop emergence and yield of direct seeded wheat, canola and field peas. Canadian Journal of Plant Science, 2003, 83(1): 129-139.

Kang, Z., Zhao, Y., Yang, D. Review of oil shale in-situ conversion technology. Applied Energy, 2020, 269: 115121.

Karim, H., Omar, M., Qader, I. Hydrostatic pressure effect on melting temperature and lattice thermal conductivity of bulk and nanowires of indium arsenide. Physica B: Condensed Matter, 2022, 640: 414045.

Lan, W., Wang, H., Zhang, X., et al. Sealing properties and structure optimization of packer rubber under high pressure and high temperature. Petroleum Science, 2019, 16(3): 632-644.

Lemineur, J., Noël, J., Courty, A., et al. In situ optical monitoring of the electrochemical conversion of dielectric nanoparticles: From multistep charge Injection to nanoparticle motion. Journal of the American Chemical Society. 2020,142(17): 7937-7946.

Li, T., Zhao, Y., Xie, P., et al. Force prediction and influencing factors analysis of the coiled tubing blowout preventer in the shearing process. Engineering Failure Analysis, 2021, 121: 105073.

Lin, Z., Liu, K., Liu, J., et al. Numerical model for geothermal energy utilization from double pipe heat exchanger in abandoned oil wells. Advances in Geo-Energy Research, 2021, 5(2): 212-221.

Liu, J., Wang, Z., Shi, K., et al. Analysis and modeling of thermoelectric power generation in oil wells: A potential power supply for downhole instruments using in-situ geothermal energy. Renewable Energy, 2020, 150: 561-569.

Liu, Z., Li, S., Zhang, L., et al. Analysis of sealing mechanical properties of fracturing packer under complex conditions. Journal of Failure Analysis and Prevention, 2019, 19(6): 1569-1582.

Ma, W., Qu, B., Guan, F. Effect of the friction coefficient for contact pressure of packer rubber. Proceedings of the Institution of Mechanical Engineers Part C-Journal of Mechanical Engineering Science, 2014, 228(16): 2881-2887.

Nguyen, DT., Paolino, P., Audry, MC., et al. Surface pressure and shear stress fields within a frictional contact on rubber. Journal of Adhesion, 2011, 87(3): 235-250.

Puthiya, S., Rebane, K., Yörük, C., et al. Aqueous mineral carbonation of oil shale mine waste (limestone): A feasibility study to develop a CO2 capture sorbent. Energy, 2021, 221: 119895.

Ren, J., Zhou, J., Yuan, X. Instability analysis in pressurized three-layered fiber-reinforced anisotropic rubber tubes in torsion. International Journal of Engineering Science, 2011, 49(4): 342-353.

Shaikh, N., Patel, K., Pandian, S., et al. Self-propagating high-temperature synthesized ceramic materials for oil and gas wells: application and the challenges. Arabian Journal of Geosciences, 2019, 12(17): 538.

Shields, L., Rolf, C., Hunsaker, J. Sudden death due to acute cocaine toxicity-excited delirium in a body packer. Journal of Forensic Sciences, 2015, 60(6): 1647-1651.

Sun, D., Lu, T., Wang, T. Nonlinear photoelasticity of rubber-like soft materials: comparison between theory and experiment. Soft Matter, 2021, 17(19): 4998-5005.

Sun, Y., Guo, W., Deng, S. The status and development trend of in-situ conversion and drilling exploitation technology for oil shale. Drilling Engineering, 2021, 48(1): 57-67. (in Chinese)

Sun, Y., Liu, Z., Li, Q., et al. Controlling groundwater infiltration by gas flooding for oil shale in situ pyrolysis exploitation. Journal of Petroleum Science and Engineering, 2019, 179: 444-454.

Sun, Y., Zhao, S., Li, Q., et al. Thermoelectric coupling analysis of high-voltage breakdown industrial frequency pyrolysis in Fuyu oil shale. International Journal of Thermal Sciences, 2018, 130: 19-27.

Uyanik, O. Estimation of the porosity of clay soils using seismic P- and S-wave velocities. Journal of Applied Geophysics, 2019, 170: 103832.

Walker, P., Yew, H., Riedemann, A. Clapeyron.jl: An extensible, open-source fluid thermodynamics toolkit. Industrial and Engineering chemistry Research, 2022, 61(20): 7130-7153.

Wang, Y., Wang, Y., Deng, S., et al. Numerical simulation analysis of heating effect of downhole methane catalytic combustion heater under high pressure. Energies, 2022, 15(3), 1186.

Wang, Z., Lü, X., Li, Q., et al. Downhole electric heater with high heating efficiency for oil shale exploitation based on a double-shell structure. Energy, 2020, 211: 118539.

Wang, Z., Yao, J., Sun, H., et al. A multi-continuum model for simulating in-situ conversion process in low-medium maturity shale oil reservoir. Advances in Geo-Energy Research, 2021, 5(4): 456-464.

Zhang, C., Wu, J., Teng, F., et al. Theoretical and experimental characterization for macro-micro friction behaviors of EPDM rubber. Polymer Testing, 2021, 99: 107213.

Zhang, F., Jiang, X., Wang, H., et al. Mechanical analysis of sealing performance for compression packer rubber tube. Mechanics and Industry, 2018, 19(3): 309.

Zhang, F., Shui, H., Yang, J. Sealing performance and fatigue life of the fracturing packer rubber of various materials. Proceedings of the Institution of Mechanical Engineers Part C-Journal of Mechanical Engineering Science, 2019, 233(17): 6157-6166.

Zhang, Z., Jia, X., Guo, F., et al. Effect of vulcanization on the tribological behavior and sealing performance of EPDM seals: Experimentation and simulation. Tribology International, 2021, 164: 107219.

Zhao, S., Li, Q., Lü, X., et al. Productivity analysis of Fuyu oil shale in-situ pyrolysis by injecting hot nitrogen. Energies, 2021, 14(16): 5114.

Zhao, S., Sun, Y., Lü, X., et al. Energy consumption and product release characteristics evaluation of oil shale non-isothermal pyrolysis based on TG-DSC. Journal of Petroleum Science and Engineering, 2020, 187: 106812.

Zheng, X., Li, B. Study on sealing performance of packer rubber based on stress relaxation experiment. Engineering Failure Analysis, 2021, 129: 105692.

Zheng, X., Li, B., Fei, G. Evaluation of sealing performance of a compression packer at high temperature. Science Progress, 2022, 105(1): 1-24.


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