CAJ | 학술논문

为研究生产测井过程中气水两相水平流动介质分布变化特征及影响因素,建立与产出气井流动状况相似的模拟流动环路,以实际生产测井仪器串测量混合流体,同时观测实验流型并绘制出实验测井流型图.实验揭示气水两相分布的变化趋势与流体动力学的普通实验结果相似,说明测井条件下的气水两相流动依然满足一般规律,但流型变化边界产生的位移反映了气水两相流动在生产测井过程中的分布特征.研究结果对正确认识及把握气水两相水平流动测井条件下的两相介质分布及分析方法提供重要依据.
위연구생산측정과정중기수량상수평류동개질분포변화특정급영향인소,건립여산출기정류동상황상사적모의류동배로,이실제생산측정의기천측량혼합류체,동시관측실험류형병회제출실험측정류형도.실험게시기수량상분포적변화추세여류체동역학적보통실험결과상사,설명측정조건하적기수량상류동의연만족일반규률,단류형변화변계산생적위이반영료기수량상류동재생산측정과정중적분포특정.연구결과대정학인식급파악기수량상수평류동측정조건하적량상개질분포급분석방법제공중요의거.
In order to study the characteristics of flow distribution changes and the factors affected by Production Logging Tool (PLT) on the gas-water two-phase flow during production well logging in horizontal wellbores,a flow-loop was built.An experimental test matrix designed to collect a maximum amount of data on the gas-water two-phase flow in horizontal wellbores was conducted on this transparent flow-loop of 16 m long,using air and tap water.Every measurement was strictly carried out in a steady-state gas-water mixed flow,by using production well logging tool-string.All flow patterns observed in these experiments were recorded by camera;all actual air and water flow rates were measured,respectively,by flowmeters located along the flow-loop.A well logging flow regime map that shows the gaswater flow patterns observed in these experiments was obtained according to these two parts of information.On the map,the variation trends of the gas-water two-phase distribution are similar to observations in ordinary fluid dynamics experiments,which means that the gas-water two-phase flow may well describe the general features in production well logging,but with its unique characteristic distribution interfered by measurements of the PLT and displayed on the flow regime map in the form of the boundaries shift.The results provide some insight for understanding the distribution of the gas-water two-phase flow during production well logging in horizontal wellbores.