Determination of reasonable test time of periodic injection well in Punan Oilfield

There were 232 stratified injection Wells in Bunan Oilfield 2020, including 69 year-round and 163 periodic Wells. are many the pressure recovery is slow after injection. After test, fluctuates greatly, data cannot be reported outside time, which affects water distribution. In according to our actual statistics, of 38 had a difference more than 2MPa from qualified point test before well. The reason discrepancy mainly related view this situation, we conducted an investigation on cycle whole mine 2020. curve was plotted daily volume length stop time. At same method determining reasonable testing time well put forward, provides scientific basis for