New technology in Shengli Dongxin operation area stimulates production-increasing vitality of low-efficiency wells

Sinopec News Network reported recently that the Xin50-incline 119 well constructed in the Dongxin operation area of ​​the Shengli Oilfield Downhole Operation Center was put into production with "102 after-effect" perforation to harvest high-yield oil streams, the highest initial output was 11.
7 tons, and the lowest water cut did not exceed 6%
.

In order to improve the development effect of low-permeability reservoirs, construction personnel have continuously introduced new effective perforation technologies in the new well commissioning or reperforation and layer modification measures, that is, a variety of bullet-type synergistic perforation, deep penetration, and high conductivity.
Perforating technologies that strengthen the seepage capacity, such as after-effects, have found a powerful tool for increasing production and efficiency for low-permeability and ultra-low permeability oil layers to control low-permeability from the source
.

Since 2018, a total of 27 wells have been optimized and selected to implement the new perforation technology, including 25 oil wells and 2 water wells, which not only improved the water absorption index per meter and the fluid production index per meter, but also increased production.
The development effect of enhanced injection and efficiency has been reflected
.

Up to now, the well has produced a total of 325 tons of oil, which has not only improved the yield rate of a single well, but also helped low-permeability reservoirs get rid of poverty and gained oil-increasing effects

(Bi Guoping and Gou Xiufeng)