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基于技术界限图版的油田集输脱水系统运行策略优化
Strategy optimization for oilfield gathering, transportation, and dehydration system operation based on technical boundary diagram
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- DOI:
- 10.3969/j.issn.1001-2206.2026.01.008
- 作者:
- 陈伯良
CHEN Boliang
- 作者单位:
- 中国石油新疆油田公司风城油田作业区, 新疆克拉玛依 834000
Fengcheng Oilfield Operation Area of PetroChina Xinjiang Oilfield Company, Karamay 834000, China
- 关键词:
- 技术界限图版; 脱水系统; 运行优化; 聚合物驱; 电场分离
technical boundary diagram;dehydration system;operation optimization;polymer flooding;electric field separation
- 摘要:
- 油田进入中高含水期后，由于采出液性质复杂导致脱水系统运行效率下降，亟需运行策略优化。运用数值模拟、室内试验和现场数据分析相结合的方法，建立两段式脱水工艺的多参数耦合技术界限图版，确定游离水脱除段和乳化水分离段的最优运行区域。构建了涵盖含水率、处理量、停留时间、电场强度等关键参数的技术界限图版，确定了游离水脱除段最优运行参数组合为含水率70%~75%、处理量4 500~5 000 m3/d、停留时间40 min，乳化水分离段最优参数组合为方波脉冲电场2.0 kV/cm、频率3 kHz、停留时间20 min。优化应用技术界限图版后，系统处理成本降低15%，能耗减少20%，脱水效率提升至80%以上。优化方法可为油田脱水系统智能化运行提供科学依据。
To address the problem of decreased operational efficiency of the dehydration system due to the complex properties of the produced fluid after oilfields enter the medium to high water cut period, operation strategy optimization is imperative. By combining numerical simulation, indoor experiments, and on-site data analysis, a multi-parameter coupling technical boundary diagram was established for two-stage dehydration process to determine the optimal operation area for free water removal and emulsified water separation. A technical boundary diagram covering key parameters such as water content, processing capacity, residence time, and electric field strength was constructed. The optimal operation parameters for the free water removal section are determined to be water content of 70%~75%, processing capacity of 4 500~5 000 m3/d, and residence time of 40 min. The optimal parameters for the emulsified water separation section are square-wave pulsed electric field of 2.0 kV/cm, frequency of 3 kHz, and residence time of 20 min. After optimization by applying the technical boundary diagram, the system processing cost is reduced by 15%, energy consumption is reduced by 20%, and the dehydration efficiency is improved to over 80%. The proposed method provides a scientific basis for the intelligent operation of oilfield dehydration systems.