电子测量技术
電子測量技術
전자측량기술
Electronic Measurement Technology
2015年
9期
25-30
,共6页
赵华鹤%徐宁%管坐辇%刘福贺
趙華鶴%徐寧%管坐輦%劉福賀
조화학%서저%관좌련%류복하
注 CO2%井筒%温度模型%压力模型%相态分布
註 CO2%井筒%溫度模型%壓力模型%相態分佈
주 CO2%정통%온도모형%압력모형%상태분포
carbon dioxide injection%wellbore%temperature model%pressure model%phase distribution
为了模拟注 CO2井筒相态分布，为注 CO2驱油提供理论依据，节省测井成本，提高驱油效率，建立了注 CO2井筒相态分布模型。本文基于传热学、流体力学、能量守恒定律等理论方法，建立了井筒温度压力耦合模型，然后结合CO2相态变化图，绘制井筒相态分布图，最后基于 MATLAB 编制了便于操作的图形用户交互界面程序。将本文建立的注 CO2相态分布模型应用于油田实验井，通过与现场监测得出的温度和压力数据曲线进行对比，得出平均测量点与本文模型计算点总的平均相对误差，温度平均相对误差为0.75%，压力平均相对误差为3.2%。基本满足注 CO2井筒相态分布模型建立的精度要求，能够指导注 CO2驱油井实际生产，优化井口注入参数，提高驱油效率。
為瞭模擬註 CO2井筒相態分佈，為註 CO2驅油提供理論依據，節省測井成本，提高驅油效率，建立瞭註 CO2井筒相態分佈模型。本文基于傳熱學、流體力學、能量守恆定律等理論方法，建立瞭井筒溫度壓力耦閤模型，然後結閤CO2相態變化圖，繪製井筒相態分佈圖，最後基于 MATLAB 編製瞭便于操作的圖形用戶交互界麵程序。將本文建立的註 CO2相態分佈模型應用于油田實驗井，通過與現場鑑測得齣的溫度和壓力數據麯線進行對比，得齣平均測量點與本文模型計算點總的平均相對誤差，溫度平均相對誤差為0.75%，壓力平均相對誤差為3.2%。基本滿足註 CO2井筒相態分佈模型建立的精度要求，能夠指導註 CO2驅油井實際生產，優化井口註入參數，提高驅油效率。
위료모의주 CO2정통상태분포，위주 CO2구유제공이론의거，절성측정성본，제고구유효솔，건립료주 CO2정통상태분포모형。본문기우전열학、류체역학、능량수항정률등이론방법，건립료정통온도압력우합모형，연후결합CO2상태변화도，회제정통상태분포도，최후기우 MATLAB 편제료편우조작적도형용호교호계면정서。장본문건립적주 CO2상태분포모형응용우유전실험정，통과여현장감측득출적온도화압력수거곡선진행대비，득출평균측량점여본문모형계산점총적평균상대오차，온도평균상대오차위0.75%，압력평균상대오차위3.2%。기본만족주 CO2정통상태분포모형건립적정도요구，능구지도주 CO2구유정실제생산，우화정구주입삼수，제고구유효솔。
In order to simulate phase distribution for carbon dioxide injection wellbore,provide theoretical basis for carbon dioxide flooding,save cost on well logging,improve oil recovery efficiency,the phase distribution model was established for carbon dioxide injection wellbore.This paper established the temperature and pressure coupled model along the wellbore,based on the theory of heat transfer,fluid mechanics and energy conservation law.Then the phase distribution map for carbon dioxide injection wellbore can be drawn combined with carbon dioxide phase diagram.At last,the graphical user interface has been composed based on the MATLAB program for the convenience of the user. The phase distribution model which was established by this paper for carbon dioxide injection wellbore was applied to a test well.Through the comparison of data of temperature and pressure between monitoring and simulating,the relative average errors between measuring points and calculating points were obtained.The relative average temperature error was 0.75% and the relative average pressure error was 3.2%.It can mainly satisfy the requirements of accuracy for establishment of phase distribution model for carbon dioxide injection wellbore.The model can conduct production of carbon dioxide flooding,optimize the injection parameters and increase oil recovery efficiency.
