the device that is attached to the blowout preventers during a frac job. fluid and propping agent are pumped under pressure into the frac head and down the well.
在压裂作业期间装在防喷器上的装置。压裂液和支撑剂在压力下被泵入压裂头,并沿井向下流动。
experimental study shows that the damage rate of fracturing fluid to fracture surface is between 31. 84% and 36. 28%; the damage rate to propping agent layer is between 29. 27% and 30. 04%.