某区块属M油田三类区块,油层埋藏较深,储层致密物性较差,采用300×300m反九点法和450×160m矩形井网布井,很难建立有效的驱动体系,油层蹩压严重。通过小井距加密调整:提高了水驱控制程度,增加了水驱动用储量,对M油田三类区块二次加密调整有指导作用。 A certain block belongs to the third type of block in M ​​Oilfield. The oil layer is buried deeply and the reservoir is of a tight nature. Using an 300 × 300m anti-nine-point method and a 450 × 160m rectangular well hole, it is hard to establish an effective driving system. Bad pressure serious. Through the adjustment of the small well distance encryption, the degree of water-flooding control is increased and the quantity of water-driven reserves is increased, which plays a guiding role in the secondary encryption adjustment of the three types of blocks in the M oilfield.