Even with the fractured wells, primary oil recovery of low-permeability reservoirs is still poor in Block X Shengli Oilfield. To further enhance recovery, water injected into reservoir. Different from conventional injection scheme, maximum daily rate proposed scheme by Oilfield reaches 2000 m3, and average around 1500 m3. Thus, well spacing certain pattern not suitable for novel scheme. In pape...

the vapor extraction (vapex) process, a solvent-based enhanced oil recovery process has been found promising for some heavy oil reservoirs. in this work, the vapex process is studied using a compositional simulator on a number of single-block and multiple block fractured systems. pvt data of one of an iranian heavy oil reservoir are used to tune the equation of state. effects of fracture spacin...