Numerical Simulation in Steam Injection Wells for Optimizing the Distribution of Thermal Parameters in Horizontal Wells with Slotted Liners
-
摘要: 为了清楚认识割缝筛管完井水平井注蒸汽过程中热力参数的分布规律,为水平井割缝筛管完井优化提供理论依据,根据质量守恒、动量守恒和能量守恒原理,建立了注蒸汽过程中蒸汽压力、蒸汽温度和蒸汽干度沿水平井筒分布的数学模型,并采用压力增量和干度增量双重迭代方法对其进行求解.以此为基础,通过实例分析了蒸汽热力参数沿水平井筒的分布规律及割缝筛管参数对其分布规律的影响.结果表明:蒸汽通过300 m长的水平井段后,其压力、温度和干度分别下降5.8 kPa、0.035 ℃和0.128;割缝宽度、长度及密度分别由0.2 mm增至0.4 mm、100 m增至140 m、200条/m增至360条/m时,水平段吸汽长度分别缩短90,100和70 m,在水平段吸汽长度范围内,蒸汽压力下降幅度分别减小1.50,1.74和1.38 kPa,蒸汽干度下降幅度分别增加0.03、0.06和0.056.蒸汽压力、蒸汽温度和蒸汽干度沿水平井筒呈二次多项式的非线性下降关系,且增大割缝的宽度、长度和密度,可使蒸汽压力的下降幅度减缓、蒸汽干度的下降幅度增大、水平井段吸汽长度变短.Abstract: To clearly understand the distribution patterns of thermal parameters during steam injection in horizontal wells completed with slotted liners and to establish a theoretical basis for the optimization of completion processes,a numerical model for the distribution of steam pressure,temperature and dryness in horizontal well while steam injection was developed according to the law of conservation of mass,momentum and energy.Next,the model was solved by iterating both steam pressure and dryness increments. On this basis,the case analysis was made to identify the distribution of thermal parameters of steam along horizontal wellbore and the impacts of slotted liner parameters on the patterns of distribution. The results show that after passing through a horizontal section of 300 m,the steam pressure,temperature and dryness were reduced by 5.8 kPa,0.035 ℃ and 0.128,respectively. When the width,length and density of slot were increased respectively from 0.2 mm to 0.4 mm,100 m to 140 m,and 200 slots/m to 360 slots/m,the steam absorption length would be reduced by 90 m,100 m and 70 m. Within the steam absorption length in the horizontal section,the steam pressures were decreased by 1.5 kPa,1.74 kPa and 1.38 kPa,whereas steam dryness increased by 0.03,0.06 and 0.056,respectively. Steam pressure,temperature and dryness display non-linear reduction in quadratic polynomial relationsalong the horizontal wellbore. Therefore,the increase in slot width,length and density will reduce the drop rate of steam pressures,increase the drop amplitude of steam dryness,and shorten the length of steam-absorption in horizontal section.
-
Keywords:
- slotted liner /
- horizontal well /
- steam injection /
- steam pressure /
- steam temperature /
- steam dryness
-
-
[1] 陈绍云,李瑷辉,李瑞营,等.大庆油田葡浅12区块浅层稠油水平井钻井技术[J].石油钻探技术,2015,43(1):126-130. Chen Shaoyun,Li Aihui,Li Ruiying,et al.Horizontal well drilling technology in shallow heavy oil recovery in Block Puqian 12 of the Daqing Oilfield[J].Petroleum Drilling Techniques,2015,43(1):126-130. [2] 王兆会,胡国强.浅层超稠油水平井完井技术[J].石油钻探技术,2002,30(1):28-30. Wang Zhaohui,Hu Guoqiang.Horizontal completion technology of super viscous crude reservoirs in shallow formations[J].Petroleum Drilling Techniques,2002,30(1):28-30. [3] 王新东,杨道平,赵忠祥,等.哈萨克斯坦北布扎齐油田侧钻中短半径水平井完井工艺技术[J].石油钻探技术,2006,34(6):30-32. Wang Xindong,Yang Daoping,Zhao Zhongxiang,et al.Well completion techniques for medium-short radius horizontal wells sidetracked in North Buzachi,Kazakhstan[J].Petroleum Drilling Techniques,2006,34(6):30-32. [4] Oballa V,Coombe D A,Buchanan L.Aspects of discretized wellbore modelling coupled to compositional/thermal simulation[J].Journal of Canadian Petroleum Technology,1997,36(4):45-51.
[5] Tan T B,Butterworth E,Yang P.Application of a thermal simulator with fully coupled discretized wellbore simulation to SAGD[J].Journal of Canadian Petroleum Technology,2002,41(1):25-30.
[6] Stone T W,Bennett J,Law D H S.Thermal simulation with multisegment wells[R].SPE 78131,2002.
[7] Stone T W,Bennett J,Edwards D A,et al.A unified thermal wellbore model for flexible simulation of multiple tubing strings[R].SPE 142153,2011.
[8] Kumar A,Oballa V,Card C C.Fully-coupled wellbore design and optimization for thermal operations[R].SPE 137427,2010.
[9] 徐明海,任瑛,王弥康,等.水平井注蒸汽传热和传质分析[J].石油大学学报:自然科学版,1993,17(5):60-65. Xu Minghai,Ren Ying,Wang Mikang,et al.Analysis on mass and heat transfer in horizontal wellbore of steam injection well[J].Journal ofthe University of Petroleum,China:Edition of Natural Science,1993,17(5):60-65. [10] 倪学锋,程林松.水平井蒸汽吞吐热采过程中水平段加热范围计算模型[J].石油勘探与开发,2005,32(5):108-112. Ni Xuefeng,Cheng Linsong.Calculating models for heating area of horizontal wellbore in steam stimulation[J].Petroleum Exploration and Development,2005,32(5):108-112. [11] 刘春泽,程林松,刘洋,等.水平井蒸汽吞吐加热半径和地层参数计算模型[J].石油学报,2008,29(1):101-105. Liu Chunze,Cheng Linsong,Liu Yang,et al.Calculating models for heating radius of cyclic steam stimulation and formation parameters in horizontal well after soaking[J].Acta Petrolei Sinica,2008,29(1):101-105. [12] 王一平,李明忠,高晓,等.注蒸汽水平井井筒内参数计算新模型[J].西南石油大学学报:自然科学版,2010,32(4):127-132,205. Wang Yiping,Li Mingzhong,Gao Xiao,et al.A new parameter-calculating model for steam flooding in horizontal wellbore[J].Journal of Southwest Petroleum University:Science Technology Edition,2010,32(4):127-132,205. [13] 万仁溥,罗英俊.采油技术手册:稠油热采工程[M].修订本.北京:石油工业出版社,1996. Wan Renpu,Luo Yingjun.Manual of production technology:heavy oil thermal recovery engineering[M].Revision.Beijing:Petroleum Industry Press,1996. [14] Beggs H D,Brill J P.A study of two-phase flow in inclined pipes[J].JPT,1973(5):607-617.
[15] 张红玲,张琪,刘秋杰.水平井蒸汽吞吐生产动态研究[J].石油钻探技术,2002,30(1):56-58. Zhang Hongling,Zhang Qi,Liu Qiujie.Study on transient performance for horizontal well with steam stimulation[J].Petroleum Drilling Techniques,2002,30(1):56-58. [16] Williams R L,Ramey H J Jr,Brown S C,et al.An engineering economic model for thermal recovery methods[R].SPE 8906,1980.
[17] Furui K.A comprehensive skin factor model for well completions based on finite element simulations[D].Austin:The University of Texas at Austin,2004.
[18] Tansev E,Startzman R A,Cooper A M.Predicting pressure loss and heat transfer in geothermal wellbores[R].SPE 5584,1975.
-
期刊类型引用(6)
1. 李朋，张艳玉，孙晓飞，李冬冬，刘洋，陈会娟. SAGD循环预热割缝筛管参数影响规律研究. 工程热物理学报. 2020(04): 940-947 . 
百度学术
2. 薛衡，黄祖熹，王贺华，安永生，刘榧，成一，何冰，刘卡. Ahdeb油田水平井控水完井及一体化耦合模型. 石油与天然气地质. 2019(02): 423-429 . 百度学术
3. 李朋，张艳玉，孙晓飞，陈会娟，刘洋. 稠油油藏双管水平井注汽井筒参数预测新模型. 特种油气藏. 2019(04): 85-90 . 百度学术
4. 李朋，张艳玉，孙晓飞，刘洋，谢孟珂，王朝，陈会娟. SAGD循环预热注汽参数影响规律数值模拟. 中南大学学报(自然科学版). 2019(11): 2896-2905 . 百度学术
5. 陈会娟，李明忠，狄勤丰，刘春苗. 多点注汽水平井井筒出流规律数值模拟. 石油学报. 2017(06): 696-704 . 百度学术
6. 徐磊. 稠油热采井防砂筛管热稳定性优化仿真分析. 北京石油化工学院学报. 2016(02): 40-45 . 百度学术
其他类型引用(5)
计量
- 文章访问数: 3590
- HTML全文浏览量: 99
- PDF下载量: 4157
- 被引次数: 11
下载:
