理工类毕业论文(论文)范例.pdf
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高温高压蒸汽流经井筒段后进入油层段,蒸汽通过射孔进入油层,并与油层进行传质传 热,从而形成油层热影响区域。本文利用有限元分析软件 ANSYS,对辽河某热采井建立了 井筒、地层和油层部分的二维、非稳态数学模型,并模拟分析了油层和周围地层温度场,在 此基础之上探讨了注汽时间对油层热影响区域的影响。研究表明:油层热影响区域先随着注 汽时间的增大而增大,而后基本不变,且注汽时间在 3~5 天最佳。
论文独创性声明
本人所呈交的论文,是在指导教师指导下,独立进行研究和开发工作所取 得的成果。除文中已特别加以注明引用的内容外,论文中不包含任何其他个人 或集体已经发表或撰写过的研究成果。对本文的工作做出重要贡献的个人和集 体,均已在文中以明确方式标明并致谢。本声明的法律结果由本人承担。
特此声明。 论文作者(签名): 年月日
High temperature and high pressure steam flows through the wellbore segment backward, such as the reservoir section, the steam through the perforation into the reservoir, and reservoir mass and heat transfer, and thus the formation of a reservoir heat-affected zone is build. Using the finite element analysis software ANSYS, a thermal recovery wellbore, formation and reservoir part of the two non-steady-state mathematical model of Liaohe was build, and simulation Analysis of the temperature field of the reservoir and surrounding strata was made, and the relationship between the time of steam injection and the reservoir heat-affected zone was discussed. The studies have shown that: at first, reservoir heat-affected region increased with the increase of the steam injection time, and then kept install, the time of steam injection in 3 to 5 days was the best.
关键词:视导热系数;注汽温度;热损失;热影响区域;ANSYS
I
一寸光阴不可轻
Abstract
For the purpose of reducing the heat loss in the mineshaft during the steam injection process, a two dimension, unsteady state heat transfer model of the mineshaft and surrounding soil was established and then the temperature field was obtained. Base the Heat loss experience formula, the apparent heat conductivity and steam temperature to heat loss per length of the mineshaft influence were discussed. The results shown that the heat loss per length of the mineshaft increased with the apparent heat conductivity and steam temperature increase, furthermore, the apparent heat conductivity affected larger than that of steam temperature.
一寸光阴不可轻
辽宁石油化工大学毕业设计(论文) Graduation Project (Thesis) for Undergraduate of LSHU
题目 TLeabharlann BaiduTLE
学院 School 专业班级 Major&Class 姓名 Name 指导教师 Supervisor
20 年 月 日
I
一寸光阴不可轻
Key words: Thermal conductivity; Steam temperature; Heat loss; Heat affected zone; ANSYS
II
一寸光阴不可轻
目录
I
一寸光阴不可轻
II
一寸光阴不可轻
III
一寸光阴不可轻
1 绪论
1.1 目的意义
稠油在世界石油资源中储量丰富,据统计,其总量约为 1000×108 吨,中国是世界上稠 油资源丰富的国家之一,预测资源量约为 198 亿吨。稠油由于粘度大,流动性差等特点,常 规开采方法并不适用,基于稠油对温度的敏感性特点,热力采油已成为国内外普遍认同的开 采方法,即向地下油层内注入高温高压蒸汽,一方面可以提高油层温度、降低稠油粘度;另 一方面可使油层压力升高、增加驱油能力。
II
一寸光阴不可轻
摘要
针对稠油热采过程中注入大量高温蒸汽而造成井筒部分热损失难以控制的问题,从热工 角度初步分析了高温蒸汽在井筒部分的传热过程,建立了井筒及周围地层部分的二维、瞬态 传热数学模型,根据所求得的温度场以及定量热损失经验公式,探讨了隔热油管视导热系数 和蒸汽温度对单位长度井筒热损失的影响。研究表明:井筒单位长度热损失随着隔热油管视 导热系数和蒸汽温度的增加而增加,且隔热油管视导热系数对井筒单位长度热损失的影响更 大。
论文独创性声明
本人所呈交的论文,是在指导教师指导下,独立进行研究和开发工作所取 得的成果。除文中已特别加以注明引用的内容外,论文中不包含任何其他个人 或集体已经发表或撰写过的研究成果。对本文的工作做出重要贡献的个人和集 体,均已在文中以明确方式标明并致谢。本声明的法律结果由本人承担。
特此声明。 论文作者(签名): 年月日
High temperature and high pressure steam flows through the wellbore segment backward, such as the reservoir section, the steam through the perforation into the reservoir, and reservoir mass and heat transfer, and thus the formation of a reservoir heat-affected zone is build. Using the finite element analysis software ANSYS, a thermal recovery wellbore, formation and reservoir part of the two non-steady-state mathematical model of Liaohe was build, and simulation Analysis of the temperature field of the reservoir and surrounding strata was made, and the relationship between the time of steam injection and the reservoir heat-affected zone was discussed. The studies have shown that: at first, reservoir heat-affected region increased with the increase of the steam injection time, and then kept install, the time of steam injection in 3 to 5 days was the best.
关键词:视导热系数;注汽温度;热损失;热影响区域;ANSYS
I
一寸光阴不可轻
Abstract
For the purpose of reducing the heat loss in the mineshaft during the steam injection process, a two dimension, unsteady state heat transfer model of the mineshaft and surrounding soil was established and then the temperature field was obtained. Base the Heat loss experience formula, the apparent heat conductivity and steam temperature to heat loss per length of the mineshaft influence were discussed. The results shown that the heat loss per length of the mineshaft increased with the apparent heat conductivity and steam temperature increase, furthermore, the apparent heat conductivity affected larger than that of steam temperature.
一寸光阴不可轻
辽宁石油化工大学毕业设计(论文) Graduation Project (Thesis) for Undergraduate of LSHU
题目 TLeabharlann BaiduTLE
学院 School 专业班级 Major&Class 姓名 Name 指导教师 Supervisor
20 年 月 日
I
一寸光阴不可轻
Key words: Thermal conductivity; Steam temperature; Heat loss; Heat affected zone; ANSYS
II
一寸光阴不可轻
目录
I
一寸光阴不可轻
II
一寸光阴不可轻
III
一寸光阴不可轻
1 绪论
1.1 目的意义
稠油在世界石油资源中储量丰富,据统计,其总量约为 1000×108 吨,中国是世界上稠 油资源丰富的国家之一,预测资源量约为 198 亿吨。稠油由于粘度大,流动性差等特点,常 规开采方法并不适用,基于稠油对温度的敏感性特点,热力采油已成为国内外普遍认同的开 采方法,即向地下油层内注入高温高压蒸汽,一方面可以提高油层温度、降低稠油粘度;另 一方面可使油层压力升高、增加驱油能力。
II
一寸光阴不可轻
摘要
针对稠油热采过程中注入大量高温蒸汽而造成井筒部分热损失难以控制的问题,从热工 角度初步分析了高温蒸汽在井筒部分的传热过程,建立了井筒及周围地层部分的二维、瞬态 传热数学模型,根据所求得的温度场以及定量热损失经验公式,探讨了隔热油管视导热系数 和蒸汽温度对单位长度井筒热损失的影响。研究表明:井筒单位长度热损失随着隔热油管视 导热系数和蒸汽温度的增加而增加,且隔热油管视导热系数对井筒单位长度热损失的影响更 大。