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科技导报
| 研究论文 2015, 33(11): 54-58
整体式Y型采气井口装置冲蚀规律及量化计算
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艾志久1 , 孟璋劼1 , 柴希伟1 , 柴希军1,2 , 陈鹏1
作者信息
1. 西南石油大学机电工程学院, 成都610500;
Erosion characteristics and quantitative calculation of Y-type gas production wellhead
Affiliations
出版时间: 2015-06-13
doi: 10.3981/j.issn.1000-7857.2015.11.009
文章导航
国内某油田在应用氮气欠平衡钻井技术以及钻油管技术过程中, 采用钻油管完井一体化井口装置。由于钻完井过程中气体流量大, 高速携岩气流容易造成完井井口装置的冲蚀磨损, 导致井口装置的承压能力下降, 造成井控风险增大, 极易诱发工程安全事故。本文结合冲蚀磨损仿真与缺陷量化计算, 定性、定量地探索整体式Y 型采油树井口携岩气体流动特性及缺陷深度随时间的变化关系, 计算得出不同采油树的安全生产时间, 为整体式Y 型采油树在高压高产气井的安全使用提供了理论依据。研究表明:同等工况条件下, 冲蚀深度随采气量的增大而增大, 随井口压力的增加而减小。
钻油管完井一体化
/
气固两相流
/
整体式Y 型采油树
/
冲蚀磨损
/
量化计算
In an application of nitrogen unbalanced drilling technology and coiled tubing technology to one domestic oil field, integrated wellhead of drilling and well completion was adopted. Because of the large gas flow in the process of drilling and well completion, the high-speed flow carrying rock particles led to erosion of the wellhead and the decline of bearing capacity of wellhead, resulting in increasing risk of well control. This paper combines the erosion simulation and quantitative calculation to qualitatively and quantitatively investigate the gas flow characteristics of Y-type gas production wellhead and the relationship between the defect depth and time. Safety times in production for different Y-type gas wellheads are calculated to provide a theoretical basis for high pressure application of integrated wellhead. It is shown that under the same condition, erosion depth increases with gas production and decreases with the increasing wellhead pressure.
integrated wellhead of drilling and completion
/
gas-solid two-phase flow
/
Y-type gas integrated wellhead
/
erosion attack
/
quantitative calculation
艾志久, 孟璋劼, 柴希伟, 柴希军, 陈鹏.
整体式Y型采气井口装置冲蚀规律及量化计算.
科技导报,
2015
, 33
(11)
: 54
-58
.
DOI: 10.3981/j.issn.1000-7857.2015.11.009
AI Zhijiu, MENG Zhangjie, CHAI Xiwei, CHAI Xijun, CHEN Peng.
Erosion characteristics and quantitative calculation of Y-type gas production wellhead[J].
Science & Technology Review ,
2015
, 33
(11)
: 54
-58
.
DOI: 10.3981/j.issn.1000-7857.2015.11.009
2015年第33卷第11期
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文章信息
doi: 10.3981/j.issn.1000-7857.2015.11.009
接收时间：2014-09-05
首发时间：2015-06-11
出版时间：2015-06-13
收稿日期：2014-09-05
修回日期：2015-04-07
https://castjournals.cast.org.cn/joweb/kjdb/CN/10.3981/j.issn.1000-7857.2015.11.009
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2种不同金属材料的力学参数
科 属数 种数 占总种数比例 属 种数 占总种数比例 鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78 小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39 多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39 红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87 小菇属 Mycena 11 5.26 光柄菇属 Pluteus 5 2.39 红菇属 Russula 17 8.13 栓菌属 Trametes 5 2.39
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