Integrated wellbore thermal management for deep wellbore cooling: Recent advances, critical challenges, and future perspectives
Abstract
Wellbore temperature is a critical factor influencing drilling‑fluid performance, downhole tool reliability, and operational safety in deep and ultra‑deep drilling. Effective wellbore cooling has therefore become increasingly important for maintaining drilling efficiency and enabling safe operations under high‑temperature conditions. This review summarizes recent advances in integrated wellbore thermal management across four interconnected areas, i.e., thermal modelling and prediction, functional thermal‑management materials, cooling technologies and equipment, and real‑time temperature monitoring and updating. First, the evolution of wellbore thermal modelling from steady‑state analyses toward transient, fully coupled, and data‑driven predictive frameworks is overviewed. Second, the functional thermal‑management materials, especially microencapsulated phase‑change materials, porous microspheres, and thermal‑conductivity enhancers are examined. Third, cooling technologies and equipment, including surface cooling systems, low‑thermal‑conductivity drill pipes, downhole insulation chambers, and active refrigeration tools, are assessed. Fourth, real‑time downhole temperature monitoring and model updating are reviewed based on fiber‑optic sensing, probabilistic data assimilation, and intelligent model correction techniques for adaptive thermal management. Finally, the key challenges and future perspectives, including near‑, medium‑, and long‑term priorities, are discussed.
Document Type: Article
Cited as: Li, M.-C., Ding, Y., Xu, Z., Wang, J., Chen, Y., Lalji, S. M. Integrated wellbore thermal management for deep wellbore cooling: Recent advances, critical challenges, and future perspectives. Advances in Geo‑Energy Research, 2026, 21(3): 247‑268. https://doi.org/10.46690/ager.2026.09.05
DOI:
https://doi.org/10.46690/ager.2026.09.05Keywords:
Deep and ultra-deep drilling, wellbore cooling, temperature modelling, cooling material and equipment, real-time temperature updatingReferences
Abdelfahiz, M. M., Oppelt, J., Mahmoud, O., et al. Effect of drilling and wellbore geometry parameters on wellbore temperature profile: Implications for geothermal production. Advances in Geo‑Energy Research, 2023, 8(3): 170‑180.
Abdollahi, J., Dubljevic, S. Transient fluid temperature estimation in wellbores. IFAC Proceedings Volumes, 2013, 46(14): 108‑113.
Aftab, A., Ismail, A. R., Ibupoto, Z. H., et al. Nanoparticles based drilling muds a solution to drill elevated temperature wells: A review. Renewable and Sustainable Energy Reviews, 2017, 76: 1301‑1313.
Ali, I., Khan, M. A., Ding, Y., et al. Recent advances in thermally insulated drilling pipes: Materials, design strategies, and future directions. Polymers, 2026, 18(8): 1004.
Alosail, M. S., Razak, R., Musa, K. I., et al. Novel insights into the effect of drilling fluid particle size distribution on filter cake permeability. Advances in Geo‑Energy Research, 2026, 19(3): 268‑284.
Bassam, A., Santoyo, E., Andaverde, J., et al. Estimation of static formation temperatures in geothermal wells by using an artificial neural network approach. Computers & Geosciences, 2010, 36(9): 1191‑1199.
Beirute, R. M. A circulating and shut‑in well‑temperature‑profile simulator. Journal of Petroleum Technology, 1991, 43(9): 1140‑1146.
Cha, H.-A., Jo, M.-G., Moon, Y. K., et al. Highly porous YSZ ceramic foams using hollow spheres with holes in their shell for high‑performance thermal insulation. Journal of the European Ceramic Society, 2023, 43(15): 7041‑7052.
Chang, Z., Wang, K., Wu, X., et al. Review on the preparation and performance of paraffin‑based phase change microcapsules for heat storage. Journal of Energy Storage, 2022, 46: 103840.
Chekhonin, E. M., Akchurin, R. Z., Ramazanov, A. S., et al. Estimation of geothermal temperature and gradient using inversion of transient wellbore temperature measurements. Applied Thermal Engineering, 2025, 263: 125309.
Cheng, C., Hu, L., Seidu, R. K., et al. Development of phase change materials directly encapsulated within gold shell microcapsules for flexible intelligent textile with energy storage and photo‑thermal conversion ability. Nano Energy, 2025, 143: 111295.
Chen, W., Wang, C., Li, J., et al. Research on optimization of drilling fluid continuous wave signal for measurement‑while‑drilling in deepwater extended reach wells. Ocean Engineering, 2025a, 340: 122342.
Chen, X., He, M., Sun, P., et al. An integrated multi‑objective optimization method for downhole cooling during deep‑water high temperature and high pressure drilling. Ocean Engineering, 2025b, 334: 121253.
Chen, X., Wang, S., He, M., et al. A comprehensive prediction model of drilling wellbore temperature variation mechanism under deepwater high temperature and high pressure. Ocean Engineering, 2024a, 296: 117063.
Chen, Y., Zhang, Q., Wu, K., et al. Phase change double‑shelled polyaniline microcapsules with low leakage rate, high thermal conductivity, solar‑thermal conversion properties for thermal energy harvesting and anti‑corrosive coatings. Journal of Energy Storage, 2024b, 100: 113480.
Chen, Z., Yue, W., Xiong, C., et al. Phase change material microcapsules used for cooling of ultra‑deep oil/gas and geothermal drilling fluids. Petroleum, 2025c, 11(4): 465‑474.
Cool, D. The geo‑cooler mud cooling system, 2026.
Dang, Z., Chen, X., Yao, X., et al. Transient prediction model of wellbore temperature in ultra‑deep wells considering cementing quality. Applied Sciences, 2025, 15(22): 12029.
Deng, C., Wei, F., Peng, J., et al. Numerical and experimental study of an integrated thermoelectric active cooling system for ultra‑high temperature downhole electronics. Applied Thermal Engineering, 2025a, 271: 126341.
Deng, P., Liu, X., Zhang, T., et al. Konjac glucomannan‑based foams incorporating cellulose phase change microcapsules for efficient thermal energy regulation. Carbohydrate Polymers, 2025b, 352: 123191.
Ding, Y., Liu, C., Xu, G., et al. Biomass‑based porous materials for thermal insulation. Materials Science and Engineering: R: Reports, 2026, 168: 101138.
Ding, Y., Yang, L., Yang, M., et al. Electrospinning of SiO₂‑based composites embedded TiO₂ nanoparticles with ultra‑strong suppression of radiative heat transfer. Journal of Alloys and Compounds, 2023a, 957: 170331.
Ding, Y., Yang, L., Yang, M., et al. Optimization of ultralight SiO₂/TiO₂ nanofibrous aerogel for high‑temperature application. Ceramics International, 2023b, 49(23, Part A): 38058‑38069.
Dong, W., Shen, R., Liang, Q. Model calculations and factors affecting wellbore temperatures during SRV fracturing. Arabian Journal for Science and Engineering, 2018, 43(11): 6475‑6480.
Dong, X., Zhou, J., Li, C., et al. Highly thermally conductive and light‑responsive phase‑change cellulose film. Journal of Forestry Engineering, 2026, 11(4): 259‑269. (in Chinese)
Duan, S., Song, X., Cui, Y., et al. Formation parameter inversion model based on unscented kalman filter during drilling kick. Geoenergy Science and Engineering, 2025, 247: 213634.
Ekechukwu, G., Sharma, J. Degradation analysis of single‑mode and multimode fibers in a full‑scale wellbore and its impact on DAS and DTS measurements. IEEE Sensors Journal, 2023, 23(9): 9287‑9300.
Gao, W., Liu, K., Dou, X., et al. Numerical investigation on cooling effect in the circuit cabin of active cooling system of measurement‑while‑drilling instrument based on split‑stirling refrigerator. Case Studies in Thermal Engineering, 2021, 28: 101621.
Gao, Y., Liu, H., Gui, H., et al. Solid‑liquid phase change materials microcapsules: Synthesis strategies, thermal storage and beyond. Progress in Natural Science: Materials International, 2024, 34(4): 615‑631.
Garcia, A., Hernandez, I., Espinosa, G., et al. TEMLOPI: A thermal simulator for estimation of drilling mud and formation temperatures during drilling of geothermal wells. Computers & Geosciences, 1998a, 24(5): 465‑477.
Garcia, A., Santoyo, E., Espinosa, G., et al. Estimation of temperatures in geothermal wells during circulation and shut‑in in the presence of lost circulation. Transport in Porous Media, 1998b, 33(1): 103‑127.
Gautam, S., Guria, C., Rajak, V. K. A state of the art review on the performance of high‑pressure and high‑temperature drilling fluids: Towards understanding the structure‑property relationship of drilling fluid additives. Journal of Petroleum Science and Engineering, 2022, 213: 110318.
Gotte, R. S., Timmermann, J. Estimating states and model uncertainties jointly by a sparsity promoting UKF. IFAC‑PapersOnLine, 2023, 56(1): 85‑90.
Gou, T., Xu, Z., Yuan, Z., et al. CFD‑machine learning hybrid modeling for horizontal wellbore temperature prediction considering drill string eccentricity. SPE/AAPG/SEG Unconventional Resources Technology Conference, Houston, Texas, 22‑24 June, 2026.
Guenot, A., Maury, V. Practical advantages of mud cooling systems for drilling. SPE Drilling & Completion, 1995, 10(1): 42‑48.
Guo, P., Qiu, Z., Zhang, Y., et al. Preparation and characterization of phase change microcapsules for improving the applicable temperature and stability of high temperature resistant drilling fluids. Chemical Engineering Research and Design, 2024, 201: 389‑398.
Han, L., Li, M., Zhang, X., et al. Preparation of wood‑derived laser‑induced graphene catalyzed by iron ion and its seawater desalination properties. Journal of Forestry Engineering, 2025, 10(3): 122‑129. (in Chinese)
Hasan, A. R., Kabir, C. S. Aspects of wellbore heat transfer during two‑phase flow. SPE Production & Facilities, 1994, 9(3): 211‑216.
Hasan, A. R., Kabir, C. S. Wellbore heat‑transfer modeling and applications. Journal of Petroleum Science and Engineering, 2012, 86‑87: 127‑136.
He, J., Wang, Q., Wu, J., et al. Hybrid thermal management strategy with PCM and insulation materials for pulsed‑power source controller in extreme oil‑well thermal environment. Applied Thermal Engineering, 2022, 214: 118864.
He, M., Sun, P., Chen, X., et al. Coupled effects of swirl flow and drill string vibration on deepwater wellbore temperature and cooling optimization. Physics of Fluids, 2025, 37(11): 113106.
Holmes, C. S., Swift, S. C. Calculation of circulating mud temperatures. Journal of Petroleum Technology, 1970, 22(6): 670‑674.
Hou, Q., Jiao, W., Ren, L., et al. Experimental study of leakage detection of natural gas pipeline using FBG based strain sensor and least square support vector machine. Journal of Loss Prevention in the Process Industries, 2014, 32: 144‑151.
Hou, X., Wang, Y., Du, D., et al. Multi‑functional thermal infrared stealth leather based on PA@SiO₂/ZnO/SA phase change microcapsules. Journal of Energy Storage, 2024, 101: 113971.
Hu, X., Su, D., Yang, C., et al. High‑stability, high‑temperature and high‑pressure FBG sensor with thin‑wall TC4 structure for oil and gas wells. Sensors and Actuators A: Physical, 2026, 402: 117575.
Ji, J., Song, X., Xu, F., et al. Effects of variable thermophysical properties of water on the heat extraction of an enhanced geothermal system: A numerical case study. Applied Thermal Engineering, 2022, 217: 119050.
Kabir, C. S., Hasan, A. R., Kouba, G. E., et al. Determining circulating fluid temperature in drilling, workover, and well control operations. SPE Drilling & Completion, 1996, 11(2): 74‑79.
Kang, I., Yoo, H., Lee, J. Productivity analysis by insulation design of well with vacuum insulated tubing in SAGD process. Geoenergy Science and Engineering, 2025, 244: 213422.
Keller, H. H., Couch, E. J., Berry, P. M. Temperature distribution in circulating mud columns. Society of Petroleum Engineers Journal, 1973, 13(1): 23‑30.
Khan, M. A., Lv, K., Sun, J., et al. Enhanced filtration performance of cellulose nanofiber/bentonite water‑based drilling fluids with temperature‑ and salt‑resistant polymers for extreme conditions. SPE Journal, 2025, 30(9): 5327‑5349.
Khan, N. U., May, R. A generalized mathematical model to predict transient bottomhole temperature during drilling operation. Journal of Petroleum Science and Engineering, 2016, 147: 435‑450.
Li, G., Liu, K., Gao, W., et al. Cooling performance and test verification of active cooling device in ultra‑high temperature environment while drilling. Acta Petrolei Sinica, 2025a, 46(10): 1960‑1969. (in Chinese)
Li, M., Ding, Y., Sun, J., et al. Research progress and prospect of wellbore cooling technology. Acta Petrolei Sinica, 2025b, 46(4): 789‑800. (in Chinese)
Li, W., Xie, T., Xu, K., et al. Thermal insulation performance evaluation and installation length optimization of inner coating thermal insulation drillpipe. Chemistry and Technology of Fuels and Oils, 2023, 59(5): 1003‑1011.
Li, S.-Y., Huo, Y.-J., Yan, T., et al. Sugarcane derived carbon@CuS‑octadecanol composite phase change materials for efficient solar thermal storage. Progress in Natural Science: Materials International, 2024, 34(4): 803‑813.
Li, X., Xin, X., Xu, T., et al. Novel wellbore‑reservoir coupling fluid flow model for natural gas hydrate production. Energy & Fuels, 2025c, 39(49): 23098‑23112.
Li, X., Zhao, H., Mi, K., et al. A transient cooling mechanism and multi‑parameter design guidance for an insulated drill‑pipe in ultra‑deep wells based on coupled thermal resistance and sensitivity analysis. Processes, 2026a, 14(15): 2494.
Li, Z., Zhang, B., Jiang, L., et al. Advances in numerical simulation of coupled wellbore fluid flow and heat transfer during drilling and well construction: Models, CFD, validation, and AI‑assisted deployment. Processes, 2026b, 14(14): 2342.
Liang, L., Cao, Y., Jiang, K., et al. Enhanced pressure sensitivity of side‑hole fiber bragg grating sensor for downhole pressure and temperature measurement. Sensors and Actuators A: Physical, 2025, 391: 116692.
Liang, X. Some effects of interface on fluid flow and heat transfer on micro‑ and nanoscale. Chinese Science Bulletin, 2007, 52(18): 2457‑2472.
Liu, F., Zhang, Z., Liao, B., et al. Recent advances in phase change microcapsules for oilfield applications. Advances in Geo‑Energy Research, 2025a, 16(3): 211‑228.
Liu, H., Wang, Z., Sun, Q., et al. An improved thermal model for predicting wellbore temperature distribution in deepwater gas well. Applied Thermal Engineering, 2022, 205: 118029.
Liu, H., Xu, Q., Zhang, X., et al. Preparation of high‑rate anode materials based on porous highly conductive carbon coating and SiOₓ disproportionation reaction. Progress in Natural Science: Materials International, 2024, 34(4): 739‑746.
Liu, J., Zhu, X., Dai, J., et al. Integration of sustainable polymers with phase change materials. Progress in Materials Science, 2025b, 151: 101447.
Liu, K., Gao, W., Fan, J., et al. Design and numerical study of active cooling device for high temperature oil and gas wells based on regenerative refrigerator. Scientific Reports, 2025c, 15(1): 22832.
Liu, Z., Cheng, J., Li, J., et al. Fiber optic fabry‑perot interferometer pressure sensors for oil well. Sensors, 2025d, 25(20): 6297.
Liu, Z., Wang, R., Zhang, X., et al. Memory thermochromic microcapsules based on alkyl benzoate phase change materials: Synthesis and characterization. Journal of Energy Storage, 2025e, 139: 118816.
Ma, Y., Shang, B., Hu, R., et al. Thermal management of downhole electronics cooling in oil & gas well logging at high temperature. 2016 17th International Conference on Electronic Packaging Technology (ICEPT), Wuhan, China, 16‑19 August, 2016.
Mao, L., Wei, C., Jia, H., et al. Prediction model of drilling wellbore temperature considering bit heat generation and variation of mud thermophysical parameters. Energy, 2023, 284: 129341.
Molenaar, M. M., Hill, D. J., Webster, P., et al. First downhole application of distributed acoustic sensing for hydraulic‑fracturing monitoring and diagnostics. SPE Drilling & Completion, 2012, 27(1): 32‑38.
Naderi, S., Velmurugan, N., Nannapaneni, P., et al. An Integrated Data and Physics‑based Temperature Model for Real‑time Estimation of Bottomhole Temperature for Downhole Tool Failure Prevention. 49th Workshop on Geothermal Reservoir Engineering. Stanford, California, 12‑14 February, 2024.
Nakamoto, R., Leggett, S. Development of a transient wellbore heat transfer model validated with distributed temperature sensing data. Sensors, 2025, 25(21): 6583.
National Oilwell Varco. Tundra offshore mud cooler, 2026.
Peng, J., Deng, C., Wei, F., et al. A hybrid thermal management system combining liquid cooling and phase change material for downhole electronics. Journal of Energy Storage, 2023a, 72: 108610.
Peng, J., Lan, W., Wei, F., et al. A numerical model coupling multiple heat transfer modes to develop a passive thermal management system for logging tool. Applied Thermal Engineering, 2023b, 223: 120011.
Ramey, H. J., Jr. Wellbore heat transmission. Journal of Petroleum Technology, 1962, 14(4): 427‑435.
Raymond, L. R. Temperature distribution in a circulating drilling fluid. Journal of Petroleum Technology, 1969, 21(3): 333‑341.
Shang, B., Ma, Y., Hu, R., et al. Passive thermal management system for downhole electronics in harsh thermal environments. Applied Thermal Engineering, 2017, 118: 593‑599.
Sharma, P., Evans, L., Tindall, M., et al. Stiff‑PDEs and physics‑informed neural networks. Archives of Computational Methods in Engineering, 2023, 30(5): 2929‑2958.
Shi, H., Wang, J., Ni, X., et al. Preparation and evaluation of phase‑change microcapsules for drilling fluid cooling. Journal of Physics: Conference Series, 2025, 3043(1): 012010.
Su, J., Li, S., Tan, Y. Performance evaluation and feasibility analysis of new phase change microcapsules in drilling fluid cooling. Colloids and Surfaces A: Physicochemical and Engineering Aspects, 2025, 722: 137253.
Suganthi, K. S., Rajan, K. S. Metal oxide nanofluids: Review of formulation, thermo‑physical properties, mechanisms, and heat transfer performance. Renewable and Sustainable Energy Reviews, 2017, 76: 226‑255.
Sun, J., Wen, Z., Khan, M. A., et al. A review of cellulose nanomaterial‑stabilized pickering foam: Formation, properties, and emerging oilfield applications. International Journal of Biological Macromolecules, 2024a, 281: 136274.
Sun, J., Xu, G., Ding, Y., et al. Advances and future prospects of shale oil and gas drilling fluid technology. Petroleum Exploration and Development, 2025, 52(6): 1609‑1623.
Sun, J., Yang, J., Bai, Y., et al. Research progress and development of deep and ultra‑deep drilling fluid technology. Petroleum Exploration and Development, 2024b, 51(4): 1022‑1034.
Tang, S., Gao, W., Liu, K. Design and numerical study of active cooling system of measurement while drilling for high temperature based on supersonic. Case Studies in Thermal Engineering, 2023, 50: 103460.
Ugueto, C. G. A., Huckabee, P. T., Molenaar, M. M., et al. Perforation cluster efficiency of cemented plug and perf limited entry completions; insights from fiber optics diagnostics. SPE Hydraulic Fracturing Technology Conference, Texas, USA, 9‑11 February, 2016.
Vetsak, A., Besoiu, C., Zatonski, V., et al. The insulated drill pipe ‑ field experience and thermal model validation. IADC/SPE International Drilling Conference and Exhibition, Texas, USA, 5‑7 March, 2024.
Wang, C., Liu, H., Yu, G.-W., et al. Wellbore‑heat‑transfer‑model‑based optimization and control for cooling downhole drilling fluid. Petroleum Science, 2024a, 21(3): 1955‑1968.
Wang, C., Wang, S., Zhang, J., et al. Fabrication and characterization of thermally stable and durable phase change microcapsules by in‑situ polymerization with high‑shear homogenization. Journal of Energy Storage, 2025a, 122: 116678.
Wang, G., Song, X., Shi, Y., et al. Heat extraction analysis of a novel multilateral‑well coaxial closed‑loop geothermal system. Renewable Energy, 2021, 163: 974‑986.
Wang, J., Shi, J., Zhao, Y., et al. Real‑time wellbore thermal profiling via probabilistic state updating: Overcoming the limitations of input‑parameter tuning. Applied Thermal Engineering, 2026a, 290: 130127.
Wang, J., Song, Z., Wang, H., et al. Experimental study on thermal insulation performance of low thermal conductivity mud cake containing porous hollow microspheres. Journal of Molecular Liquids, 2026b, 458: 129775.
Wang, J., Wang, R., Ren, H., et al. Hollow silica nanospheres as wellbore thermal insulation materials in water‑based drilling fluids. Colloids and Surfaces A: Physicochemical and Engineering Aspects, 2026c, 749: 141216.
Wang, J., Wang, R., Wang, Q., et al. A wellbore wall thermal‑insulating hollow microsphere and preparation method thereof. CN202511106125.7, 2025b. (in Chinese)
Wang, P., He, B., An, Z., et al. Hollow glass microspheres embedded in porous network of chitosan aerogel used for thermal insulation and flame retardant materials. International Journal of Biological Macromolecules, 2024b, 256: 128329.
Wang, Q., Xu, Z., Jia, W., et al. Active wellbore cooling during deep drilling circulation via microencapsulated phase change materials: Energy redistribution mechanism and inverse design. Energy, 2026d, 360: 141647.
Wei, M., Cai, W., Xu, M., et al. Active cooling system for downhole electronics in high‑temperature environments. Journal of Thermal Science and Engineering Applications, 2022, 14(8): 081009.
Wei, M., Chen, X., Duan, X., et al. Physically constrained intelligent interpretation of production profiles for multilayer oil wells based on distributed fiber optic temperature monitoring. Advances in Geo‑Energy Research, 2026, 19(1): 30‑42.
William, J. K. M., Ponmani, S., Samuel, R., et al. Effect of CuO and ZnO nanofluids in xanthan gum on thermal, electrical and high pressure rheology of water‑based drilling fluids. Journal of Petroleum Science and Engineering, 2014, 117: 15‑27.
Wooley, G. R. Computing downhole temperatures in circulation, injection, and production wells. Journal of Petroleum Technology, 1980, 32(9): 1509‑1522.
Wu, J., Yu, P., Wang, L., et al. Reversible thermochromic phase change material microcapsules with high latent heat via cellulose nanocrystal stabilized pickering emulsion for smart coatings. Small, 2025a, 21(35): 2505575.
Wu, X., Hou, Z., Li, Z., et al. Numerical calculation of bottom hole circulating temperature in wellbore cementing processes with multi‑fluid and multi‑step. Petroleum Science, 2025b, 22(4): 1578‑1595.
Wu, Z., Chang, Y. Research and application of microcapsule technology in the wood industry. Journal of Forestry Engineering, 2025, 10(3): 1‑12. (in Chinese)
Xi, Y., Jiang, M., Guo, Q., et al. Research on the spatiotemporal dynamic evolution model and influencing factors of geothermal wellbore temperature distribution based on insulated drill pipes. Geoenergy Science and Engineering, 2026, 264: 214578.
Xiao, D., Chen, C., Tang, G., et al. A wellbore flow model for large‑size‑disparity annulus based on downhole flow‑splitting tool. Physics of Fluids, 2026, 38(1): 013114.
Xiao, D., Hu, Y., Wang, Y., et al. Wellbore cooling and heat energy utilization method for deep shale gas horizontal well drilling. Applied Thermal Engineering, 2022, 213: 118684.
Xiao, D., Xiao, H., Song, W., et al. Utilization method of low‑grade thermal energy during drilling based on insulated drill pipe. Renewable Energy, 2024, 225: 120363.
Xie, J., Zhang, J., Cheng, Y., et al. Real‑time prediction of wellbore temperatures in deep shale gas drilling using a combination of PINN and heat transfer models. Applied Thermal Engineering, 2025, 279: 127984.
Xu, S., Yang, D., Liu, B., et al. Multi‑field coupling controls the formation and evolution of deep reservoirs. Advances in Geo‑Energy Research, 2025, 17(2): 176‑178.
Yan, H., Liu, Z., Lv, K., et al. Boron nitride nanosheets enabled high‑thermal‑conductivity water‑based drilling fluids for enhanced surface cooling. Progress in Natural Science: Materials International, 2026, 36(4): 988‑1001.
Yang, H., Li, J., Zhang, H., et al. Numerical analysis of heat transfer rate and wellbore temperature distribution under different circulating modes of reel‑well drilling. Energy, 2022, 254: 124313.
Yang, J., Bai, H., He, Z., et al. Design of passive insulation system and optimization of thermal insulation material for deep in‑situ condition‑preserved coring. Advances in Geo‑Energy Research, 2025, 15(2): 99‑111.
Yang, M., Luo, D., Chen, Y., et al. Establishing a practical method to accurately determine and manage wellbore thermal behavior in high‑temperature drilling. Applied Energy, 2019, 238: 1471‑1483.
Yao, X., Song, X., Zhou, M., et al. A modified heat transfer model for predicting wellbore temperature in ultra‑deep drilling with insulated drill pipe. Energy, 2025, 331: 136981.
Zhang, C., Sun, J., Huang, X., et al. Preparation of polymer‑coated SiO₂ aerogel for weakening wellbore instability caused by heat transfer between the drilling fluid and well wall. Geoenergy Science and Engineering, 2025a, 247: 213611.
Zhang, C., Sun, J., Huang, X., et al. Research progress and prospect of cooling technology for drilling fluid in deep and ultra‑deep wells. Chinese Journal of Engineering, 2025b, 47(6): 1161‑1174. (in Chinese)
Zhang, G., Tang, M., He, S., et al. Wellbore‑formation transient temperature distribution considering heat transfer by fluid seepage while drilling in horizontal well. Geoenergy Science and Engineering, 2025c, 251: 213886.
Zhang, H.-R., Su, Y.-N., Liao, M.-L., et al. Effects of different thermal insulated drill pipe deployment methods on wellbore temperature control in ultra‑deep wells. Petroleum Science, 2025d, 22(10): 4174‑4194.
Zhang, Y., Ashok, P., Chen, D., et al. Tripping and staging into geothermal wells while assuring thermal protection of downhole tools and sensors. Geothermics, 2026, 136: 103598.
Zhang, Z., Wei, Y., Xiong, Y., et al. Influence of the location of drilling fluid loss on wellbore temperature distribution during drilling. Energy, 2022, 244: 123031.
Zhang, Z., Xiong, Y., Pu, H., et al. Effect of the variations of thermophysical properties of drilling fluids with temperature on wellbore temperature calculation during drilling. Energy, 2021, 214: 119055.
Zhao, L., Wang, G., Li, J., et al. Preparation of medium temperature phase‑change nanocapsules for thermal regulation of deep well drilling. Case Studies in Thermal Engineering, 2026a, 77: 107562.
Zhao, S., Xu, K., Li, Z., et al. The current status and prospects of cooling technology for offshore high‑temperature drilling wells. Chemistry and Technology of Fuels and Oils, 2025, 61(5): 1255‑1262.
Zhao, X., Zhang, X., Zhu, X., et al. Development and feasibility study of phase‑change microcapsules for intelligent cooling of drilling fluids in high‑temperature deep wells. Colloids and Surfaces A: Physicochemical and Engineering Aspects, 2026b, 740: 140177.
Zhu, S., Zhao, N., Li, J., et al. Hard‑template synthesis of three‑dimensional interconnected carbon networks: Rational design, hybridization and energy‑related applications. Nano Today, 2019, 29: 100796.
Zhuang, X., Wang, W., Su, Y., et al. Physical‑geochemical coupling in wellbore‑reservoir systems: Thermo‑hydro‑mechanical‑chemical processes for subsurface energy development and storage. Gas Science and Engineering, 2026, 150: 205855.
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