| 摘要 |
FIELD: oil and gas production. ^ SUBSTANCE: components of insulation material are pumped into well and conditioned. The well is developed. The development of well is carried out cyclically, step-by-step in two stages. Duration of each cycle at each stage corresponds to sum of time for withdrawal of fluid from the well until depression with a step of depression increment from cycle to cycle, of time for insulation material structuring and of time for recovery of bottomhole pressure to reservoir pressure. Time for withdrawal of fluid from well to minimal depression is determined by a curve of depression for a pay at well start-up. Time for recovery of bottomhole pressure to reservoir pressure is determined by a curve of pressure recovery. At the first stage there are performed 3 cycles of well development with the step of depression increment from cycle to cycle 0.08-0.12 MPa. At the second stage there are carried out up to 7 cycles of well development with the step of depression increment from cycle to cycle determined from the equation: where öPmax is maximal possible depression in the well to the reservoir upon water insulation operations, MPa, and K is number of cycles of well development. ^ EFFECT: increased efficiency of insulation of water production zone in well. ^ 2 dwg |
