Application of Rodless Oil Production Technology with Coiled Tubing Electric Submersible Pump in Jiyuan Oilfield

In view of the problems such as eccentric wear of pipe and rod and short pump inspection cycle in the application of rodless oil production technology in Jiyuan low permeability oilfield, 6 rodless oil production technology tests wells of coiled tubing electric submersible pump are carried out in G43 and G155 blocks. The comparison with the rod production process shows that the pump inspection period of the rod less oil production process is significantly extended, and the average pump inspection period of the four comparable oil wells is extended from 127 days to 219 days, which is still effective. The rodless oil production technology can effectively reduce the frequency of pump inspection, improve the production rate, and indirectly reduce the cost of wellbore maintenance and downhole operation. The daily power consumption of rodless oil production technology is greatly reduced, and the effect of energy saving is obvious. On average, 71.4KWh of electricity was saved per day for a single well, 428.6 KWh of electricity was saved per day for six wells in total, and 54000 yuan of electricity was saved in stages, which still kept stable operation. The rodless oil production technology of coiled tubing electric submersible pump occupies less land and is simple to install. Through optimization of the technology, the adaptability is improved and the application prospect in Jiyuan Oilfield is good.