Efficient Lifting Supporting Technology for Production Wells in the Shengli Oilfield Steam Flood
-
摘要: 胜利油田蒸汽驱生产井产液温度高、H2S含量高、出砂、结垢，导致举升系统腐蚀、泵效低、卡泵等问题突出，针对这一现状，开展了蒸汽驱生产井高效举升配套技术研究。通过结构改进和参数的优化设计提高了抽油泵及井口密封装置的适应性，通过有限元模拟分析优化了抽油泵泵筒及柱塞间的密封间隙，运用高温高压试验优选了抽油泵阀副的材质，以适应高温条件下柱塞泵筒的密封需求。通过优化结构、优选密封盘根材质和耐高温防腐光杆，形成了耐高温防腐光杆密封技术。室内试验证明，研发的有杆泵举升配套工具在泵挂处温度200℃、井口温度170℃时仍能保持良好的性能；现场应用58井次，最长生产896 d且持续有效，检泵周期平均延长207 d，减少换盘根82次，泵效平均提高9.2%，单井平均日增油0.7 t。研究结果表明，蒸汽驱生产井高效举升配套技术能够有效解决蒸汽驱油井的腐蚀、卡泵等问题，提效增油效果明显，应用前景广阔。Abstract: Severe environment of steam flooding producers in the Shengli Oilfield,such as high temperature and high H2S content of produced liquid,sanding and scaling,has caused a range of problems including lifting system corrosion,low pump efficiency,and stuck pumps.To solve these quite diverse problems,we conducted study on the efficient lifting supporting technologies used in the steam flooding producers.It was found that the adaptability of pumping unit and wellhead sealing device could be improved through structure modification and parameters optimization.Using finite element simulation analysis,the seal gap between pump cylinder and the plunger was optimized.In addition,HTHP materials testing could help optimize the pump valve ball and seat,and improve the sealing for the plunger and cylinder under high temperature.High-temperature resistant and anti-corrosion polished rod sealing technology was developed by optimizing the structure and packing materials.The pilot test demonstrated that the innovated supporting device for sucker rod pump lifting maintained good performance under 200℃ at pump setting depth and 170℃ at wellhead.The technology has been applied in 58 wells with the longest production period over 896 days.The period of the pump inspection was extended by 207 days on average,and replacement of the packing was reduced 82 times.Pump efficiency increased by 9.2% on average,and the average daily oil production increased by 0.7 tons.The study results show that the efficient lifting supporting technologies can effectively solve the problems of corrosion and stuck pumps in steam flooding wells with remarkable improvement in oil production and wide application prospects.
-
-
[1] 张琪.采油工程原理与设计[M].东营:中国石油大学出版社,2006:94-212. ZHANG Qi.Principle and design of oil production engineering[M].Dongying:China University of Petroleum Press,2006:94-212. [2] 孟科全,唐晓东,邹雯炆,等.稠油降粘技术研究进展[J].天然气与石油,2009,27(3):30-34. MENG Kequan,TANG Xiaodong,ZOU Wenwen,et al.Progress in research on heavy oil viscosity reduction technology[J].Natural Gas and Oil,2009,27(3):30-34. [3] 赵燕,吴光焕,孙业恒.泡沫辅助蒸汽驱矿场试验及效果[J].油气地质与采收率,2017,24(5):106-110. ZHAO Yan,WU Guanghuan,SUN Yeheng.Field test and effect analysis of foam-assisted steam flooding[J].Petroleum Geology and Recovery Efficiency,2017,24(5):106-110. [4] 姜东,石白妮,李增亮,等.全金属单螺杆泵工作性能的仿真与试验研究[J].中国石油大学学报(自然科学版),2014,38(6):134-139. JIANG Dong,SHI Baini,LI Zengliang,et al.Research on operating characteristic of metal progressive cavity pump using simulation and experimental method[J].Journal of China University of Petroleum Edtion of Natral Sciences,2014,38(6):134-139. [5] GB/T 18607-2008抽油泵及其组件规范[S]. GB/T 18607-2008 Specification for subsurface sucker rod pumps and fittings[S]. [6] ASTM G111-1997高温或高压环境中或高温高压环境中的腐蚀试验[S]. ASTM G111-1997 Standard guide for corrosion tests in high temperature or high pressure environment,or both[S]. [7] JB/T 7901-2001金属材料试验室均匀腐蚀全浸试验方法[S]. JB/T 7901-2001 Metals materials-uniform corrosion-methods of laboratory immersion testing[S]. -
期刊类型引用(6)
1. 陈琪，李伟，季磊磊，路德乐，潘云欣. 非对称脉冲装置内部流动及能量损失特性. 排灌机械工程学报. 2023(09): 926-932 . 
百度学术
2. 严忠，陈小元，王委，纪照生，史杏杏. 脉冲射流动力机构的结构设计和数值模拟. 石油机械. 2021(03): 15-24 . 百度学术
3. 樊继强. 井底交变流场提速工具的研制及特性测试. 石油机械. 2020(06): 37-42 . 百度学术
4. 牛利宁，郑锡坤. 浅析石油钻井工具发展与应用分析. 信息记录材料. 2018(10): 246-247 . 百度学术
5. 刘晗. 石油钻井工具的检测与应用. 科学技术创新. 2018(33): 162-163 . 百度学术
6. 梁奇敏，何俊才，张弘，张翼，刘新云. 钻井提速工具经济性预测评价方法. 石油钻探技术. 2017(03): 57-61 . 本站查看
其他类型引用(4)
计量
- 文章访问数: 3958
- HTML全文浏览量: 84
- PDF下载量: 5521
- 被引次数: 10
下载:
