海洋L形立管系统底部连续气举水力模型
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摘要
为了研究海洋L形立管系统底部连续气举水力模型,基于立管底部连续注气条件,分析L形立管系统内可能发生的两相流动过程,建立了针对下倾管-立管系统严重段塞流工况下立管底部连续气举的一维准稳态数值模型。该模型能对有回落循环过程、无回落循环过程、非稳态震荡过程及稳态两相流动过程的相关参数进行数值模拟,从而得到不同流动类型特征参数随时间变化的规律,且模拟结果与第3方实验数据吻合较好。与Jansen模型相比,该模型的适用性和稳定性更强。基于模型模拟结果和实验数据,分析了注气量对立管底部连续气举效果的影响,以期对海洋立管系统安全稳定流动提供借鉴。(图8,表3,参27)
In order to study the hydraulic model for the continuous gas lift at the bottom of L-type marine riser system, the two-phase flow process that may occur in an L-type riser system was analyzed based on the condition of continuous gas injection at the bottom of the riser. Then, a one-dimensional quasi-steady numerical model was established to simulate the continuous gas lift at the bottom of the riser in the working condition of severe slugging in the downdip pipe-riser system. This new model can be used to perform numerical simulation on the related parameters of different flow behaviors, namely cyclic flow with fallback, cyclic flow without fallback, unsteady oscillation and steady two-phase flow. By virtue of this model, the variation laws of flow parameters over the time in different flow behaviors can be obtained. Furthermore, the simulation results are in agreement with the experimental data provided by the third party. This model is superior to the Jansen model in terms of applicability and stability. Finally, the influence of gas injection rate on the continuous gas lift at the bottom of the riser was analyzed based on simulation results and experimental data so as to provide a reference for the safe and stable flow in marine riser systems.(8 Figures, 3 Tables, 27 References)
In order to study the hydraulic model for the continuous gas lift at the bottom of L-type marine riser system, the two-phase flow process that may occur in an L-type riser system was analyzed based on the condition of continuous gas injection at the bottom of the riser. Then, a one-dimensional quasi-steady numerical model was established to simulate the continuous gas lift at the bottom of the riser in the working condition of severe slugging in the downdip pipe-riser system. This new model can be used to perform numerical simulation on the related parameters of different flow behaviors, namely cyclic flow with fallback, cyclic flow without fallback, unsteady oscillation and steady two-phase flow. By virtue of this model, the variation laws of flow parameters over the time in different flow behaviors can be obtained. Furthermore, the simulation results are in agreement with the experimental data provided by the third party. This model is superior to the Jansen model in terms of applicability and stability. Finally, the influence of gas injection rate on the continuous gas lift at the bottom of the riser was analyzed based on simulation results and experimental data so as to provide a reference for the safe and stable flow in marine riser systems.(8 Figures, 3 Tables, 27 References)
引文
[1]马华伟.组合立管系统中严重段塞流特性及其消除方法研究[D].青岛:中国石油大学(华东),2008:43-105.MA H W.Investigation on severe slugging phenomenon and elimination methods in multiphase riser pipe system[D].Qingdao:China University of Petroleum(East China),2008:43-105.
[2]YOCUM B T.Offshore riser slug flow avoidance:mathematical models for design and optimization[C].London:SPE European Meeting,1973:1-5.
[3]POTS B F,BROMILOW I G,KONIJN M J.Severe slug flow in offshore flowline/riser systems[J].SPE Production Engineering,1987,2(4):319-324.
[4]HILL T J.Gas injection at riser base solves slugging,flow problems[J].The Oil and Gas Journal,1990,26(9):88-92.
[5]JANSEN F E.Elimination of severe slugging in a pipeline-riser system[D].Tulsa:University of Tulsa,1990:69-103.
[6]JANSEN F E,SHOHAM O.A study on the optimization of severe slugging elimination[J].Journal of Petroleum Technology,1991(22328):12-43.
[7]JANSEN F E,SHOHAM O.Methods for eliminating pipelineriser flow instabilities[C].Long Beach:SPE Western Regional Meeting,1994:195-197.
[8]JANSEN F E,SHOHAM O,TAITEL Y.The elimination of severe slugging-experiments and modeling[J].International Journal of Multiphase Flow,1996,22(6):1055-1072.
[9]TAITEL Y.Stability of severe slugging[J].International Journal of Multiphase Flow,1986,12(2):203-217.
[10]LACY C E,GROOTE G,CHAO R,et al.Increasing production by applying field-proven active slug suppression technology[C].Amsterdam:SPE Annual Technical Conference and Exhibition,2014:9-11.
[11]BALINO J L.Modeling and simulation of severe slugging in air-water systems including inertial effects[J].Journal of Computational Science,2014,5(3):482-495.
[12]CHENG B,LI Q,YU X,et al.Software simulation for making severe slugging control strategy in deepwater riser[C].San Francisco:Proceedings of the ASME 2014 33rd International Conference on Ocean,Offshore and Arctic Engineering,2014:1-5.
[13]程兵,李彦辉,李清平,等.海洋石油多相流立管严重段塞流控制方法[J].油气储运,2013,32(12):1285-1288.CHENG B,LI Y H,LI Q P,et al.Control method of severe slug flow in riser of offshore oil multiphase flow[J].Oil&Gas Storage and Transportation,2013,32(12):1285-1288.
[14]YAW S Y,LEE C Y,HAANDRIKMAN G,et al.Smart choke-a simple and effective slug control technology to extend field life[C].Kuala Lumpur:International Petroleum Technology Conference,2014:1-4.
[15]AZEVEDO G R,BALI O J L,BURR K P.Linear stability analysis for severe slugging in air-water systems considering different mitigation mechanisms[J].International Journal of Multiphase Flow,2015,73(1):238-250.
[16]叶晶,郭烈锦,陈森林,等.不同立管结构下严重段塞流特性的对比实验研究[J].海洋工程装备与技术,2015,2(1):18-22.YE J,GUO L J,CHEN S L,et al.Comparative experimental study on severe slugging characteristics in different riser shapes[J].Ocean Engineering Equipment and Technology,2015,2(1):18-22.
[17]SARICA C,YUAN G,SHANG W,et al.Feasibility and evaluation of surfactants and gas lift in combination as severe slugging suppression method[C].Amsterdam:SPE Annual Technical Conference and Exhibition,2014,4(4):78-87.
[18]SARICA C,BEGEN P,PEREYRA E,et al.Feasibility of surfactants as severe slugging suppression agents[C].Calgary:9th North American Conference on Multiphase Technology,2014:365-373.
[19]SCHOPPA W,ZABARAS G J,MENON R,et al.Gaps and advancements for deepwater production and remote processing:large diameter riser laboratory gas-lift tests[C].Houston:Offshore Technology Conference,2013:1-5.
[20]邱伟伟,徐孝轩,宫敬.深海立管中严重段塞流特性模拟研究[J].科学技术与工程,2013,13(19):5464-5469.QIU W W,XU X X,GONG J.Simulation of severe slugging in the riser[J].Science Technology and Engineering,2013,13(19):5464-5469.
[21]李明,宫敬,李清平.海洋立管系统严重段塞流数学模型[J].油气储运,2013,32(5):462-468.LI M,GONG J,LI Q P.Mathematical model of severe slug flow in submarine riser system[J].Oil&Gas Storage and Transportation,2013,32(5):462-468.
[22]张强,邓道明,董勇,等.海洋L形立管系统不稳定流简化计算模型[J].油气储运,2014,33(1):95-98.ZHANG Q,DENG D M,DONG Y,et al.Simplified calculation model for unsteady flow in marine L-type riser system[J].Oil&Gas Storage and Transportation,2014,33(1):95-98.
[23]李乃良,李文升,郭烈锦,等.严重段塞流顶部节流作用下的流型及其转变[J].工程热物理学报,2015,36(1):97-100.LI N L,LI W S,GUO L J,et al.Flow patterns and transitions during riser topside choking on the elimination of severe slugging[J].Journal of Engineering Thermophysics,2015,36(1):97-100.
[24]李文升,郭烈锦,李乃良.严重段塞流现象与立管顶部节流的瞬态模拟[J].工程热物理学报,2014,35(1):104-108.LI W S,GUO L J,LI N L.Transient simulation of severe slugging and riser topside choking[J].Journal of Engineering Thermophysics,2014,35(1):104-108.
[25]ZUBER N,FINDLAY J.Average volumetric concentration in two-phase flow systems[J].Journal of Heat Transfer,1965,87(4):453-468.
[26]NICKLIN D J,WILKES J O,DAVIDSON J F.Two-phase flow in vertical tubes[J].Chemical Engineering Research and Design,1962,40(1):61-68.
[27]TAITEL Y,VIERKANDT S,SHOHAM O,et al.Severe slugging in a riser system:experiments and modeling[J].International Journal of Multiphase Flow,1990,16(1):57-68.
[2]YOCUM B T.Offshore riser slug flow avoidance:mathematical models for design and optimization[C].London:SPE European Meeting,1973:1-5.
[3]POTS B F,BROMILOW I G,KONIJN M J.Severe slug flow in offshore flowline/riser systems[J].SPE Production Engineering,1987,2(4):319-324.
[4]HILL T J.Gas injection at riser base solves slugging,flow problems[J].The Oil and Gas Journal,1990,26(9):88-92.
[5]JANSEN F E.Elimination of severe slugging in a pipeline-riser system[D].Tulsa:University of Tulsa,1990:69-103.
[6]JANSEN F E,SHOHAM O.A study on the optimization of severe slugging elimination[J].Journal of Petroleum Technology,1991(22328):12-43.
[7]JANSEN F E,SHOHAM O.Methods for eliminating pipelineriser flow instabilities[C].Long Beach:SPE Western Regional Meeting,1994:195-197.
[8]JANSEN F E,SHOHAM O,TAITEL Y.The elimination of severe slugging-experiments and modeling[J].International Journal of Multiphase Flow,1996,22(6):1055-1072.
[9]TAITEL Y.Stability of severe slugging[J].International Journal of Multiphase Flow,1986,12(2):203-217.
[10]LACY C E,GROOTE G,CHAO R,et al.Increasing production by applying field-proven active slug suppression technology[C].Amsterdam:SPE Annual Technical Conference and Exhibition,2014:9-11.
[11]BALINO J L.Modeling and simulation of severe slugging in air-water systems including inertial effects[J].Journal of Computational Science,2014,5(3):482-495.
[12]CHENG B,LI Q,YU X,et al.Software simulation for making severe slugging control strategy in deepwater riser[C].San Francisco:Proceedings of the ASME 2014 33rd International Conference on Ocean,Offshore and Arctic Engineering,2014:1-5.
[13]程兵,李彦辉,李清平,等.海洋石油多相流立管严重段塞流控制方法[J].油气储运,2013,32(12):1285-1288.CHENG B,LI Y H,LI Q P,et al.Control method of severe slug flow in riser of offshore oil multiphase flow[J].Oil&Gas Storage and Transportation,2013,32(12):1285-1288.
[14]YAW S Y,LEE C Y,HAANDRIKMAN G,et al.Smart choke-a simple and effective slug control technology to extend field life[C].Kuala Lumpur:International Petroleum Technology Conference,2014:1-4.
[15]AZEVEDO G R,BALI O J L,BURR K P.Linear stability analysis for severe slugging in air-water systems considering different mitigation mechanisms[J].International Journal of Multiphase Flow,2015,73(1):238-250.
[16]叶晶,郭烈锦,陈森林,等.不同立管结构下严重段塞流特性的对比实验研究[J].海洋工程装备与技术,2015,2(1):18-22.YE J,GUO L J,CHEN S L,et al.Comparative experimental study on severe slugging characteristics in different riser shapes[J].Ocean Engineering Equipment and Technology,2015,2(1):18-22.
[17]SARICA C,YUAN G,SHANG W,et al.Feasibility and evaluation of surfactants and gas lift in combination as severe slugging suppression method[C].Amsterdam:SPE Annual Technical Conference and Exhibition,2014,4(4):78-87.
[18]SARICA C,BEGEN P,PEREYRA E,et al.Feasibility of surfactants as severe slugging suppression agents[C].Calgary:9th North American Conference on Multiphase Technology,2014:365-373.
[19]SCHOPPA W,ZABARAS G J,MENON R,et al.Gaps and advancements for deepwater production and remote processing:large diameter riser laboratory gas-lift tests[C].Houston:Offshore Technology Conference,2013:1-5.
[20]邱伟伟,徐孝轩,宫敬.深海立管中严重段塞流特性模拟研究[J].科学技术与工程,2013,13(19):5464-5469.QIU W W,XU X X,GONG J.Simulation of severe slugging in the riser[J].Science Technology and Engineering,2013,13(19):5464-5469.
[21]李明,宫敬,李清平.海洋立管系统严重段塞流数学模型[J].油气储运,2013,32(5):462-468.LI M,GONG J,LI Q P.Mathematical model of severe slug flow in submarine riser system[J].Oil&Gas Storage and Transportation,2013,32(5):462-468.
[22]张强,邓道明,董勇,等.海洋L形立管系统不稳定流简化计算模型[J].油气储运,2014,33(1):95-98.ZHANG Q,DENG D M,DONG Y,et al.Simplified calculation model for unsteady flow in marine L-type riser system[J].Oil&Gas Storage and Transportation,2014,33(1):95-98.
[23]李乃良,李文升,郭烈锦,等.严重段塞流顶部节流作用下的流型及其转变[J].工程热物理学报,2015,36(1):97-100.LI N L,LI W S,GUO L J,et al.Flow patterns and transitions during riser topside choking on the elimination of severe slugging[J].Journal of Engineering Thermophysics,2015,36(1):97-100.
[24]李文升,郭烈锦,李乃良.严重段塞流现象与立管顶部节流的瞬态模拟[J].工程热物理学报,2014,35(1):104-108.LI W S,GUO L J,LI N L.Transient simulation of severe slugging and riser topside choking[J].Journal of Engineering Thermophysics,2014,35(1):104-108.
[25]ZUBER N,FINDLAY J.Average volumetric concentration in two-phase flow systems[J].Journal of Heat Transfer,1965,87(4):453-468.
[26]NICKLIN D J,WILKES J O,DAVIDSON J F.Two-phase flow in vertical tubes[J].Chemical Engineering Research and Design,1962,40(1):61-68.
[27]TAITEL Y,VIERKANDT S,SHOHAM O,et al.Severe slugging in a riser system:experiments and modeling[J].International Journal of Multiphase Flow,1990,16(1):57-68.