CAJ | 학술논문

以注水井井筒为研究对象,根据注水沿井筒的流动过程与地层间的传热过程,将传热学理论和结垢预测技术相结合,考虑注水量、温度、压力、pH值以及离子质量浓度等因素对注水井井筒碳酸钙结垢的综合影响,建立注水井井筒中碳酸钙结垢预测的数学模型,并开发注水井井筒中碳酸钙结垢预测软件.运用该软件对胜利油田某一油区的注水井井筒进行结垢预测.结果表明,注水井井筒中碳酸钙垢的预测结果与实际测试结果相符,且能预测注水井中碳酸钙垢随着时间、井深、温度、压力及水质等参数的变化情况,可为油田采取防垢、除垢措施提供依据.
이주수정정통위연구대상,근거주수연정통적류동과정여지층간적전열과정,장전열학이론화결구예측기술상결합,고필주수량、온도、압력、pH치이급리자질량농도등인소대주수정정통탄산개결구적종합영향,건립주수정정통중탄산개결구예측적수학모형,병개발주수정정통중탄산개결구예측연건.운용해연건대성리유전모일유구적주수정정통진행결구예측.결과표명,주수정정통중탄산개구적예측결과여실제측시결과상부,차능예측주수정중탄산개구수착시간、정심、온도、압력급수질등삼수적변화정황,가위유전채취방구、제구조시제공의거.
Taking the water injection wellbore as object, combining the heat transfer theory with the scaling prediction technology, a scaling prediction mathematical model of water injection wellbore was established according to the heat transfer process and fluid flow process of injection water along wellbore. The changes of water injection rate, temperature, pressure, pH value, ion mass concentration were also taken into consideration. The scaling prediction software of water injection well was developed. The quantity of CaCO3 scaling in the water injection well was predicted by using the software in Shengli Oilfield. The results show that the prediction accords with the real situation. Accurate prediction of the wellbore scaling can provide basis for taking scale control and scale removal measurement in oilfield.