CAJ | 학술논문

新疆深层稠油在井筒举升过程中，由于温度的降低，原油会逐渐失去流动性。掺稀油是有效降低井筒摩阻的方式。根据现场掺稀工艺建立室内模拟测量装置，模拟了掺稀过程中稠油和稀油的动态混合过程，并测量得到沿井筒温度降低过程中混合物的黏度变化；结合井筒传热及流动模型，模拟分析了不同掺稀比条件下的井筒摩阻。分析结果表明，掺稀比的增加能有效降低摩阻，但是单位稀油对摩阻降低的贡献随掺稀比增加而降低。
신강심층주유재정통거승과정중，유우온도적강저，원유회축점실거류동성。참희유시유효강저정통마조적방식。근거현장참희공예건립실내모의측량장치，모의료참희과정중주유화희유적동태혼합과정，병측량득도연정통온도강저과정중혼합물적점도변화；결합정통전열급류동모형，모의분석료불동참희비조건하적정통마조。분석결과표명，참희비적증가능유효강저마조，단시단위희유대마조강저적공헌수참희비증가이강저。
During the artiifcial lift to Xinjiang deep heavy oil reservoir, crude oil gradually losing mobility with temperature de-creasing is a serious problem. The light oil blending is an effective way to reduce wellbore friction. In this work, the indoor simulation measurement device was built according to the in-situ light oil mixing technique to study the light oil and its dynamic mixing process during the process of light oil addition. And then variation of the mixture viscosity with the decrease of wellbore temperature is also measured. Combined with the wellbore heat transfer and lfuid lfow model, the wellbore friction is calculated and analyzed under different light oil ratios. Study results show that the increase of the light oil ratio is able to decrease the friction effectively, but the contribution of unit light oil for friction fall decreases with the rise of light oil ratio.