Effects of Drilling Mud Properties on Hydrate Dissociation Around Wellbore during Drilling Operation in Hydrate Reservoir

Document Type : Original Article


1 School of Energy Science and Engineering, Henan Polytechnic University, Jiaozuo, China

2 College of Science, Heilongjiang Bayi agriculture University, Daqing, China


Natural gas hydrate is a potential energy source in the near future, and its commercial development can alleviate the global energy crisis. Disturbance of drilling mud invasion on hydrate reservoir can lead to hydrate dissociation, affecting wellbore stability while drilling in clayey silt hydrate reservoirs. In this work, the coupled thermo-hydro-chemical finite element model was developed, and influences of drilling mud properties on hydrate dissociation were investigated. The investigation results show that the hydrate dissociation range around wellbore widens as the mud temperature increases. The final dissociation range caused by drilling mud invasion nonlinearly increases from 3.83cm to 10.57cm when the mud temperature is increased from 17.25℃ to 21.25℃. Therefore, the drilling mud needs to be cooled during preparation in platform. In addition, dissociation range narrows as the bottom-hole pressure increases. Dissociation range decreases from 12.18cm to 7.46cm when the bottom-hole pressure is increased from 14.50MPa to 17.00MPa. Thus, the overbalanced/near-balanced drilling operation is preferred during drilling in hydrate reservoirs, and the underbalanced drilling operation is not recommended. Moreover, the increase of mud salinity exacerbates hydrate dissociation in the near-wellbore region. In view of the prevention of hydrate dissociation in the near-wellbore, it is necessary to confect the drilling mud that with appropriate salinity while drilling in hydrate-bearing sediments.


Main Subjects

  1. Dvoynikov, M. V., Nutskova, M. V., Blinov, P. A. “Developments Made in the Field of Drilling Fluids by Saint Petersburg Mining University” International Journal of Engineering, Transactions A: Basics, 33, No. 4, (2020), 702-711. DOI: 10.5829/IJE.2020.33.04A.22
  2. Klar, A., Soga, K., Ng, M. Y. A. “Coupled deformation-flow analysis for methane hydrate extraction” Géotechnique, 60, No. 10, (2010), 765-776. DOI: 10.1680/geot.9.P.079-3799
  3. Shankar, U., Sain, K., Riedel, M. “Assessment of gas hydrate stability zone and geothermal modeling of bsr in the Andaman Sea” Journal of Asian Earth Sciences, 79, (2014), 358-365. DOI: 10.1016/j.jseaes.2013.10.021
  4. Lu, S. M. “A global survey of gas hydrate development and reserves: Specifically in the marine field” Renewable & Sustainable Energy Reviews, 41, No. 4, (2015), 884-900. DOI: 10.1016/j.rser.2014.08.063
  5. Gai, X. R., Sánchez, M. “A geomechanical model for gas hydrate-bearing sediments” Environmental Geotechnics, 4, No. 2, (2017), 143-156. DOI: 10.1680/jenge.15.00050
  6. Yan, C., Cheng, Y., Li, M., Han, Z., Zhang, H., Li, Q., Teng, F., Ding, J. “Mechanical experiments and constitutive model of natural gas hydrate reservoirs” International Journal of Hydrogen Energy, 42, No. 31, (2017), 19810-19818. DOI: 10.1016/j.ijhydene.2017.06.135
  7. Ahmadi, G., Ji, C. A., Smith, D. H. “Production of natural gas from methane hydrate by a constant downhole pressure well” Energy Conversion and Management, 48, No. 7, (2007), 2053-2068. DOI: 10.1016/j.enconman.2007.01.015
  8. Yao, Y., Wei, M., Kang, W. “A review of wettability alteration using surfactants in carbonate reservoirs” Advances in Colloid and Interface Science, 294, (2021), 102477. DOI: 10.1016/j.cis.2021.102477
  9. Liu, X., Jiang, R., Li, J., Huang, W. “Characteristics of Shale Gas Reservoir in Jiyang Depression and its Significance in Drilling and Exploitation” International Journal of Engineering, Transactions B: Applications, 33, No. 8, (2020), 1677-1686. DOI: 10.5829/IJE.2020.33.08B.27
  10. Poplygin, V. V., Pavlovskaia E. E. “Investigation of the Influence of Pressures and Proppant Mass on the Well Parameters after Hydraulic Fracturing” International Journal of Engineering, Transactions A: Basics, 34, No. 4, (2021), 1066-1073. DOI: 10.5829/IJE.2021.34.04A.33
  11. Wang, Y., Lang, X., Fan, S., Wang, S., Yu, C., Li, G. “Review on enhanced technology of natural gas hydrate recovery by carbon dioxide replacement” Energy&Fuels, 35, No. 5, (2021), 3659-3674. DOI:10.1021/acs.energyfuels.0c04138
  12. Li, G., Moridis, G. J., Zhang, K., Li, X. S. “Evaluation of gas production potential from marine gas hydrate deposits in shenhu area of south china sea” Energy & Fuels, 24, No. 11, (2010), 6018-6033. DOI: 10.1021/ef100930m
  13. Wang, Y., Feng, J, Li, X., Zhang, Y., Li, G. “Evaluation of gas production from marine hydrate deposits at the GMGS2-site 8, pearl river mouth basin, South China Sea” Energies, 9, No. 3, (2016), 222. DOI: 10.3390/en9030222
  14. Su, Z., Li, H., Wu, N., Yang, S. “Effect of thermal stimulation on gas production from hydrate deposits in shenhu area of the south china sea” Science China Earth Sciences, 56, No. 4, (2013), 601-610. DOI: 10.1007/s11430-013-4587-4
  15. Zhao, X., Qiu, Z., Gao, J., Ren, R., Li, J., Huang, W. “Mechanism and effect of nanoparticles on controlling fines migration in unconsolidated sandstone formations” SPE Journal, Vol. 26, No. 1, (2021), 1-13. DOI: 10.2118/204474-PA
  16. Fereidounpour, A., Vatani, A. “Designing a Polyacrylate Drilling Fluid System to Improve Wellbore Stability in Hydrate Bearing Sediments” Journal of Natural Gas Science and Engineering, Vol. 26, (2015), 921-926. DOI: 10.1016/j.jngse.2015.06.038
  17. Zhao, X., Qiu, Z., Zhao, C., Xu, J., Zhang, Y. “Inhibitory effect of water-based drilling fluid on methane hydrate dissociation” Chemical Engineering Science, Vol. 199, No. 18, (2019), 113-122. DOI: 10.1016/j.ces.2018.12.057
  18. Tabatabaee Moradi, S.S., Nikolaev, N. I. “Study of Bonding Strength at Salt-cement Interface During Cementation of Salt Layers” International Journal of Engineering, Transactions B: Applications, Vol. 34, No. 2, (2021), 581-586. DOI: 10.5829/IJE.2021.34.02B.32
  19. Chen, D. C., Yao, Y., Fu, G., Meng, H. X., Xie, S. X. “A new model for predicting liquid loading in deviated gas wells” Journal of Natural Gas Science and Engineering, Vol. 34, (2016), 178-184. DOI: 10.1016/j.jngse.2016.06.063
  20. Leusheva, E., Morenov, V., Tabatabaee Moradi S. “Effect of Carbonate Additives on Dynamic Filtration Index of Drilling Mud” International Journal of Engineering, Transactions B: Applications, Vol. 33, No. 5, (2020), 934-939. DOI: 10.5829/IJE.2020.33.05B.26
  21. 21. Zhao, X., Qiu, Z., Zhao, C., Xu, J., Zhang, Y. “Inhibitory effect of water-based drilling fluid on methane hydrate dissociation” Chemical Engineering Science, (2019) Vol. 199, 113-1232. DOI: 10.1016/j.ces.2018.12.057
  22. 22. Li, Q., Liu, L., Yu, B., Guo, L., Shi, S., Miao, L. “Borehole enlargement rate as a measure of borehole instability in hydrate reservoir and its relationship with drilling mud density”. Journal of Petroleum Exploration and Production, 11, No. 3, (2021), 1185-1198. DOI: 10.1007/s13202-021-01097-2