| Citation: |
WANG Zhiyuan, LI Zeqin, CHEN Gang, et al. Prevention and control methods for plume after deepwater riserless drilling blowout [J]. Petroleum Drilling Techniques, 2025, 53(3)：47−57. DOI: 10.11911/syztjs.2025056
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During the deepwater riserless drilling process, the fluid movement law is unclear after a blowout occurs when shallow-layer gas is encountered. To address this issue, the Mixture multiphase model was adopted to simulate the flow process of the fluid after blowout. By considering the distribution characteristics of seawater temperature and pressure, a deepwater riserless drilling blowout model including the sea area and the drilling wellbore was established, and the accuracy of the model was ensured through comparison with VDROP−J blowout plume model for shallow water wells. Then, combined with the geological characteristics and physical properties of fluids in the South China Sea, the formation and evolution laws of plumes after blowouts were analyzed using the established model: after being ejected from the wellhead, the fluid would go through stages such as turbulent jet, suction and bending, and convective diffusion, eventually forming a plume that is narrow at the bottom and wide at the top. During the migration process, the fluid came into contact with seawater to form natural gas hydrates, which decomposed at a certain height due to changes in environmental pressure and temperature. Finally, based on the simulation results of multi-condition blowout plumes, a quantitative risk assessment model for blowout plumes was established through dimensionless number analysis. According to the hazard classification coefficient of blowout plumes, the risks of blowout plumes were divided into six levels, and the corresponding risk assessment charts were formulated. Based on the principle of safety barriers, prevention and control methods for deepwater riserless drilling blowouts were constructed from three aspects: prevention, mitigation, and control. Studies show that the established model can predict the movement range of blowout plumes, assess the safety risks of blowout plumes, provide a scientific basis for formulating response measures after blowout in deepwater riserless drilling, and help improve the safety and reliability of deepwater drilling operations.
| [1] |
ROLLER P R. Riserless drilling performance in a shallow hazard environment[R]. SPE 79878, 2003.
|
| [2] |
MYERS G. Ultra-deepwater riserless mud circulation with dual gradient drilling[J]. Scientific Drilling, 2008, 6: 48–51. doi: 10.5194/sd-6-48-2008
|
| [3] |
王友华,王文海,蒋兴迅. 南海深水钻井作业面临的挑战和对策[J]. 石油钻探技术,2011,39(2):50–55.
WANG Youhua, WANG Wenhai, JIANG Youxun. South China Sea deepwater drilling challenges and solutions[J]. Petroleum Drilling Techniques, 2011, 39(2): 50–55.
|
| [4] |
徐鹏,孙宝江,董玉杰,等. 用于处理深水浅层气的动力压井方法研究[J]. 石油钻探技术,2010,38(11):11–15.
XU Peng, SUN Baojiang, DONG Yujie, et al. Dynamic well kill method for shallow gas pockets in deep water[J]. Petroleum Drilling Techniques, 2010, 38(1): 11–15.
|
| [5] |
LU Shaoming. Seismic characteristics of two deep-water drilling hazards: shallow-water flow sands and gas hydrate[D]. Dallas: The University of Texas, 2003.
|
| [6] |
吴时国,赵汗青,伍向阳,等. 深水钻井安全的地质风险评价技术研究[J]. 海洋科学,2007,31(4):77–80.
WU Shiguo, ZHAO Hanqing, WU Xiangyang, et al. The research of geohazards estimation technique on deep-water wells[J]. Marine Sciences, 2007, 31(4): 77–80.
|
| [7] |
黄守国. 适合于深水钻井的低热水泥浆研究[D]. 荆州:长江大学,2012.
HUANG Shouguo. Study of low thermal cementing slurry suitable for deep water drilling[D]. Jingzhou: Yangtz University, 2012.
|
| [8] |
FLORES W, Jr, GARNER J B, SCARBOROUGH C. Deepwater blowout: a case history: shallow gas hazards hide in the weeds[R]. SPE 105914, 2007.
|
| [9] |
YAPA P D, ZHENG Li. Modelling oil and gas releases from deep water: a review[J]. Spill Science & Technology Bulletin, 1997, 4(4): 189–198.
|
| [10] |
ZHENG Li, YAPA P D. Simulation of oil spills from deep water blow-outs[C]//Proceedings of the 27th IAHR World Congress. San Francisco: IAHR, 1997: 1126-1131.
|
| [11] |
ZHENG Li. A three-dimensional model for simulating the behavior of oil and gas released from deep water[D]. Potsdam: Clarkson University, 1998.
|
| [12] |
JOHANSEN Ø. DeepBlow: a Lagrangian plume model for deep water blowouts[J]. Spill Science & Technology Bulletin, 2000, 6(2): 103–111.
|
| [13] |
JOHANSEN Ø, RYE H, COOPER C. DeepSpill: field study of a simulated oil and gas blowout in deep water[J]. Spill Science & Technology Bulletin, 2003, 8(5/6): 433–443.
|
| [14] |
CHEN Fanghui. Modeling deepwater oil/gas blowouts with hydrate formation and decomposition[D]. Potsdam: Clarkson University, 2003.
|
| [15] |
高永海,孙宝江,曹式敬,等. 应用事故树法对深水井控进行风险评估[J]. 石油钻采工艺,2008,30(2):23–27.
GAO Yonghai, SUN Baojiang, CAO Shijing, et al. Risk assessment on well control in deepwater drilling based on fault tree analysis[J]. Oil Drilling & Production Technology, 2008, 30(2): 23–27.
|
| [16] |
邓海发. 深水钻井作业重大事故风险评估与控制[D]. 青岛:中国石油大学(华东),2012.
DENG Haifa. Risk assessment and control of major accidents in deepwater drilling operations[D]. Qingdao: China University of Petroleum(East China), 2012.
|
| [17] |
黄峰. 深水钻井中浅层气致灾机制数值模拟研究[D]. 青岛:中国石油大学(华东),2018.
HUANG Feng. Hazard evolution and numerical simulations study when drilling through shallow gas formations during deep-water drilling[D]. Qingdao: China University of Petroleum(East China), 2018.
|
| [18] |
LONG Yang, YANG Jin, YIN Qishuai, et al. Numerical simulation study on the mechanism of releasing ultra-deep water shallow gas by drilling pilot holes[J]. Geoenergy Science and Engineering, 2023, 221: 111294. doi: 10.1016/j.petrol.2022.111294
|
| [19] |
SLOAN E D Jr, KOH C A. Clathrate hydrates of natural gases[M]. 3rd ed. Boca Raton: CRC Press, 2007.
|
| [20] |
DI LORENZO M, AMAN Z M, KOZIELSKI K, et al. Underinhibited hydrate formation and transport investigated using a single-pass gas-dominant flowloop[J]. Energy & Fuels, 2014, 28(11): 7274–7284.
|
| [21] |
AMAN Z M, DI LORENZO M, KOZIELSKI K, et al. Hydrate formation and deposition in a gas-dominant flowloop: Initial studies of the effect of velocity and subcooling[J]. Journal of Natural Gas Science and Engineering, 2016, 35(Part B): 1490-1498.
|
| [22] |
WANG Zhiyuan, ZHANG Jianbo, SUN Baojiang, et al. A new hydrate deposition prediction model for gas-dominated systems with free water[J]. Chemical Engineering Science, 2017, 163: 145–154. doi: 10.1016/j.ces.2017.01.030
|
| [23] |
VYSNIAUSKAS A, BISHNOI P R. A kinetic study of methane hydrate formation[J]. Chemical Engineering Science, 1983, 38(7): 1061–1072. doi: 10.1016/0009-2509(83)80027-X
|
| [24] |
KIM H C, BISHNOI P R, HEIDEMANN R A, et al. Kinetics of methane hydrate decomposition[J]. Chemical Engineering Science, 1987, 42(7): 1645–1653. doi: 10.1016/0009-2509(87)80169-0
|
| [25] |
QIN Rulei, XU Benchong, CHEN Haowen, et al. Qualitative and quantitative analysis of the stability of conductors in riserless mud recovery system[J]. Energies, 2022, 15(20): 7657. doi: 10.3390/en15207657
|
| [26] |
王偲,谢文卫,张伟,等. RMR技术在海域天然气水合物钻探中的适应性分析[J]. 探矿工程(岩土钻掘工程),2020,47(2):17–23.
WANG Si, XIE Wenwei, ZHANG Wei, et al. Adaptability of RMR for marine gas hydrate drilling[J]. Exploration Engineering(Rock & Soil Drilling and Tunneling), 2020, 47(2): 17–23.
|
| [27] |
LEVITUS S, BOYER T P. World ocean atlas 1994: volume 4: temperature[R]. Washington: Government Printing Office, 1994.
|
| [28] |
高永海. 深水油气钻探井筒多相流动与井控的研究[D]. 青岛:中国石油大学(华东),2007.
GAO Yonghai. Study on multi-phase flow in wellbore and well control in deep water drilling[D]. Qingdao: China University of Petroleum(East China), 2007.
|
| [29] |
ZHAO Lin, BOUFADEL M C, LEE K, et al. Evolution of bubble size distribution from gas blowout in shallow water[J]. Journal of Geophysical Research: Oceans, 2016, 121(3): 1573–1599. doi: 10.1002/2015JC011403
|
| [30] |
WANG Changchang, LIU Ying, CHEN Jie, et al. Cavitation vortex dynamics of unsteady sheet/cloud cavitating flows with shock wave using different vortex identification methods[J]. Journal of Hydrodynamics, 2019, 31(3): 475–494. doi: 10.1007/s42241-019-0043-z
|
| [31] |
PREMATHILAKE L T, YAPA P D, NISSANKA I D, et al. Impact on water surface due to deepwater gas blowouts[J]. Marine Pollution Bulletin, 2016, 112(1/2): 365–374.
|
| [32] |
TURNER J S. Jets and plumes with negative or reversing buoyancy[J]. Journal of Fluid Mechanics, 1966, 26(4): 779–792. doi: 10.1017/S0022112066001526
|
| [33] |
BURRIDGE H C, HUNT G R. The rise heights of low- and high-froude-number turbulent axisymmetric fountains[J]. Journal of Fluid Mechanics, 2012, 691: 392–416. doi: 10.1017/jfm.2011.480
|
| [34] |
孟祥坤. 深水钻井系统井喷事故灾变演化及安全屏障研究[D]. 青岛:中国石油大学(华东),2018.
MENG Xiangkun. Research on blowout accident evolution and safety barrier for deepwater drilling system[D]. Qingdao: China University of Petroleum(East China), 2018.
|
| [35] |
陶永金,左训国. 两凝水泥浆在青海油田深井固井中的应用[J]. 石油钻探技术,1997,25(3):29–31.
TAO Yongjin, ZUO Xunguo. Application of accelerated and retarded slurries in deep well cementing in Qinghai Oilfield[J]. Petroleum Drilling Techniques, 1997, 25(3): 29–31.
|
| [36] |
孟会行. 深水井喷快速应急技术与救援风险分析研究[D]. 青岛:中国石油大学(华东),2014.
MENG Huixing. Study on rapid emergency technique and rescue risk analysis for deepwater blowout[D]. Qingdao: China University of Petroleum(East China), 2014.
|
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Sponsor：Sinopec Research Institute of Petroleum Engineering
Serial Number：CN 11-1763/TE, ISSN 1001-0890
Chief Editor： WANG Minsheng
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