Sucker-rod pump closed circulation watering paraffin-prevention device

• Main Authors: DONG MEI, QIN YANCAI, GAO QIANG, XU FUGANG, ZHUANG DONG, WANG HUI, YANG HUCHUAN, CHI HONGLI
• Format: Patent
• Language: Chinese; English
• Published: 01.06.2016
• Subjects: EARTH DRILLING; EARTH DRILLING, e.g. DEEP DRILLING; FIXED CONSTRUCTIONS; MINING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS

The invention discloses a sucker-rod pump closed circulation watering paraffin-prevention device. The sucker-rod pump closed circulation watering paraffin-prevention device comprises an automatic heating device, a circulating pump, a hollow sucker rod and a hollow rod three-way device. By means of t...