CAJ | 학술논문

塔河油田超稠油电泵井受掺入稀油的不稳定性、稀稠油混配效果差影响，电泵运行工况极不稳定，故障停机井次多，运行寿命低，且现有技术水平难以动用原油黏度100×104 mPa·s以上、黏温拐点3500 m以下井储量。为改善电泵运行工况，延长运行寿命及动用超稠油井储量，从改善稀稠油混配效果及确保超稠油能够顺利入泵出发，研制了电泵加装尾管装置，并进行了5井次矿场试验。试验表明：该装置能够提高稀稠油混配效果，改善电泵运行工况，动用超稠油井储量，在稠油电泵井中具有广阔的应用前景。
탑하유전초주유전빙정수참입희유적불은정성、희주유혼배효과차영향，전빙운행공황겁불은정，고장정궤정차다，운행수명저，차현유기술수평난이동용원유점도100×104 mPa·s이상、점온괴점3500 m이하정저량。위개선전빙운행공황，연장운행수명급동용초주유정저량，종개선희주유혼배효과급학보초주유능구순리입빙출발，연제료전빙가장미관장치，병진행료5정차광장시험。시험표명：해장치능구제고희주유혼배효과，개선전빙운행공황，동용초주유정저량，재주유전빙정중구유엄활적응용전경。
Affected by the instability of mixed light oil and the poor mixing effect of thin and heavy oil, the ultra-heavy oil electric submersible pump in Tahe oilifeld was characterized by extremely unstable operation condition, more fault shutdown times, low run-ning life and dififcult to develop the well reserves by the current technical level, which oil viscosity is more than 100 × 104 mPa·s and viscosity-temperature inlfection point is deeper than 3 500 m. In order to improve the pump operating condition, extend the running life and increase the reserves of ultra-heavy oil produced by mechanical lifting. From the aspects of improving the dilute heavy oil mixing effects and ensuring super heavy oil could smoothly enter into the pump, a pump installed tail pipe device was developed, and was applied in ifve wells in ifeld. The results show that:the device is able to enhance dilute heavy oil mixing effects, improve the pump operating condi-tion and produce ultra-heavy oil reserves. The pump has broad application prospects in the heavy oil wells.