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综合气井水合物预防和控制技术及其应用
Leilei Gong1,2,3, Shujin Zhang1,2,3, Meng Cai2,3
1Northeast Petroleum University, Daqing, China.
PloS one
|December 7, 2023
概括
一个新的联合机械和化学工艺有效地防止高压井中的气酸盐堵塞. 这项技术减少了甲醇的使用和维护,并增加了气体的生产,确保了连续运行.
科学领域:
- 石油工程是石油工程中的一个.
- 化学工程是化学工程的重要组成部分.
- 地质科学是地球科学.
背景情况:
- 高压气井面临着结和水合物阻塞的风险,影响生产.
- 现有的方法,如下孔杀和人工酒精注射,在有效性和连续性方面都有局限性.
研究的目的:
- 开发和验证一种新的联合机械和化学水合物控制工艺.
- 为了应对高压,低温气体井中水合物形成的挑战.
主要方法:
- 分析了水合物形成机制,以设计一个联合控制过程.
- 使用OLGA软件进行过程参数设计,模拟和分析.
- 实现了一个下孔的快门和自动抑制器填充装置.
主要成果:
- 降低了井头压力和水合物生成温度.
- 每个井平均每天增加0.5×10^4m3的气体.
- 显著降低了甲醇消耗 (从1750公斤降至60公斤/天) 和手动维护 (降低了80%).
结论:
- 结合机械和化学水合物控制技术是可行的和高效的.
- 在大庆油田的天然气井生产和运营可靠性得到了改善.
- 提供关键的技术支持,以防止气体水合物和增强天然气井产量.
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