低温集输管道流动参数变化规律分析与节能研究  

Research on the analysis and energy conservation of flow parameter change in low temperature gathering and transportation pipeline

作　　者：金晔 JIN Ye(No.6 Oil Production Plant of Daqing Oilfield Co.,Ltd.)

机构地区：[1]大庆油田有限责任公司第六采油厂,黑龙江省大庆市163000

出　　处：《石油石化节能与计量》2025年第1期48-53,共6页Energy Conservation and Measurement in Petroleum & Petrochemical Industry

摘　　要：为实现掺水工艺的简化优化,降低地面集输系统的能耗,开展了不同掺水量和不同管材作用下的降温实验,分析了井口回压、进站温度与实验时间之间的关系,确定了不同掺水量下的粘壁温度界限,对影响粘壁温度的因素进行了回归和分析,并用于指导现场生产。结果表明:不同掺水量对应的井口回压变化不同,小掺水量情况下,温度变化存在滞后,大掺水量情况下,压力呈周期性变化;同等条件下,玻璃钢管道的粘壁温度要低于钢管,在高含水率、高流速下,玻璃钢管道进行低温集输的可行性更大;10口油井实施低温集输后,全年可节约掺水量4.5×10^(4) m^(3)、节约燃气量12.50×10^(4) m^(3)、节约电量2.99×10^(4) kWh,节约运行费用11.50万元。研究结果可为混输管网开展不加热集输工艺提供技术支撑。In order to realize the simplification and optimization of the water blending process and reduce the energy consumption of the surface gathering and transportation system,the cooling experiment has been carried out under the action of different water blending quantities and different pipe materials.The relationship between wellhead back pressure,inlet temperature and experimental time are analyzed,and the limits of adhesive wall temperature under different water blending quantities is determined,which are regressed and analyzed for the factors affecting the adhesive wall temperature and used to guide the on-site product.The results show that the change of wellhead back pressure is different with water blending quantities.The temperature change lags behind when the water blending quantity is small,and the pressure changes periodically when the water blending quantity is large.Under the same conditions,the adhesive wall temperature of fiber reinforced plastics pipe is lower than that of steel pipe.Especially in the case of high water content and high flow rate,the feasibility of low temperature gathering and transportation of fiber reinforced plastics pipe is greater.After the implementation of low temperature gathering and transportation in 10 oil wells,the annual water blending can be saved by 4.5×10^(4) m^(3),the gas volume can be saved by 12.50×10^(4) m^(3),the electricity can be saved by 2.99×10^(4) kWh,and the operating cost can be saved by 115000 yuan,which can make the research results provide technical support for the non-heating gathering and transportation process of themixed transmission network.

关 键 词：低温集输 玻璃钢管 粘壁温度 压力 掺水量 

分 类 号：TE863[石油与天然气工程—油气储运工程]