CAJ | 학술논문

针对长庆油田川平46-23集输管路，利用管路的现场参数，通过对比分析优选出合适的流型划分模型、持液率模型、压降模型以及蜡沉积模型。对上述模型编程求解，分析了集输管路运行压力、温度、持液率、有效内径、气/液相表观流速、蜡沉积速率等随管道长度与运行时间的变化规律。模拟结果表明，在运行36 h 内，随管道长度的增加(除前60 m)，结蜡速率减小，压力降低，温度降低，气相表观流速增大，液相表观流速减小，持液率减小；随着运行时间的增加，同一节点处的蜡沉积速率增大，压力降低，温度升高，气、液相表观流速增大，持液率减小。
침대장경유전천평46-23집수관로，이용관로적현장삼수，통과대비분석우선출합괄적류형화분모형、지액솔모형、압강모형이급사침적모형。대상술모형편정구해，분석료집수관로운행압력、온도、지액솔、유효내경、기/액상표관류속、사침적속솔등수관도장도여운행시간적변화규률。모의결과표명，재운행36 h 내，수관도장도적증가(제전60 m)，결사속솔감소，압력강저，온도강저，기상표관류속증대，액상표관류속감소，지액솔감소；수착운행시간적증가，동일절점처적사침적속솔증대，압력강저，온도승고，기、액상표관류속증대，지액솔감소。
It is difficult to manage gathering & transportation pipelines because of their complicate operating conditions. Based on the Chuanping 46-23 gathering & transportation pipeline in Changqing oilfield and its operating parameters.The appropriate models,such as flow pattern model,liquid holdup calculation model,pressure drop calculation model and wax deposition model,were selected by comparative analysis.Then,the variation of operating pressure,temperature,liquid holdup,effective inner diameter,gas/liquid superficial velocity and wax deposition rate with pipe distance and operating time was analyzed by programming and calculating the models.The simulating results showed that the wax deposition rate, pressure,temperature,liquid superficial velocity and liquid holdup reduced,while gas superficial velocity increased with the increasing of pipeline length (except for the first 60 meters).The wax deposition rate,temperature,gas/liquid superficial velocity increases,the pressure and liquid holdup decreased at the same node with the increase of operating time within 36 operating hours.