| 气体钻井偏心环空气固两相流模拟研究 |
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| 引用本文： | 朱红钧,林元华,田博,明传中,朱伟.气体钻井偏心环空气固两相流模拟研究[J].石油钻采工艺,2010,32(1). |
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| 作者姓名： | 朱红钧 林元华 田博 明传中 朱伟 |
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| 作者单位： | 1. 西南石油大学石油管力学和环境行为重点实验室,四川成都,610500
2. 塔里木油田公司,新疆库尔勒,841000 |
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| 基金项目： | "新世纪优秀人才支持计划"，四川省杰出青年学科带头人培养基金，中国石油天然气集团公司应用基础研究项目"非API标准油气井管材及管柱安全性与优化设计技术研究" |
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| 摘 要： | 国内气体钻井技术仍处于发展阶段,井内流场分布及工艺参数研究方面还不成熟,尤其是在气体钻井过程中发生偏心时环空内的流场分布变化研究较少。基于流体动力学方法,利用FLUENT软件对气体钻井时环空内气固两相流场进行了数值模拟研究,模拟发现偏心环空中岩屑流速偏离对称分布,在倾斜井眼中有明显增加,最大速度在环空厚度较大处发生;钻柱旋转使环空压降增大,而随井斜角的增大,压降逐渐减小;偏心环空的岩屑浓度较大,随钻柱旋转速度的增大先增后减,而随井斜角的增大而增大。数值模拟气体钻井形象直观地反映了井内各参数的分布情况,为进一步设计技术参数提供了有效的依据。
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| 关 键 词： | 偏心环空 气体钻井 气固两相流 数值模拟 |
Numerical simulation of the gas-cuttings flow properties in eccentric annulus by gas drilling |
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| ZHU Hongjun,LIN Yuanhua,TIAN Bo,MING Chuanzhong,ZHU Wei.Numerical simulation of the gas-cuttings flow properties in eccentric annulus by gas drilling[J].Oil Drilling & Production Technology,2010,32(1). |
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| Authors: | ZHU Hongjun LIN Yuanhua TIAN Bo MING Chuanzhong ZHU Wei |
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| Affiliation: | ZHU Hongjun1,LIN Yuanhua1,TIAN Bo1,MING Chuanzhong2,ZHU Wei1(1.Key Laboratory for Mechanical , Environmental Behavior of Tubular Goods,Southwest Petroleum University,Chengdu 610500,China,2.PetroChina Tarim Oilfield Company,Karamy 841000,China) |
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| Abstract: | Gas drilling technology is being developed in China,research on distribution of flow and parameters of gas drilling is still in the rough,especially the research on the distribution of flow properties in eccentric annulus.Based on the computation fluid dynamics method,the gas-cuttings flow properties in eccentric annulus are simulated by FLUENT.The velocity of cuttings is asymmetrical in eccentric annulus and it increases obviously in inclined borehole.The maximum velocity occurrs in the major eccentric ann... |
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| Keywords: | FLUENT eccentric annulus gas drilling gas-cuttings flow numerical simulation FLUENT |
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