萨中高台子油层浅调剖的实践与认识

由于高台子油层小层多，隔层不明显，所以通过细分调整减缓层间矛盾及控制含水上升速度的难度都很大。南一区西部高台子油层应用浅调剖技术，通过精细选井选层，针对层间差异较大，且与之连通采油井含水上升过快的注水井，降低了中、高渗透层的渗透率，提高了低渗透层的吸水能力，改善了水驱效果，达到了稳油控水的目的。浅调剖技术在南一区西部高台子油层的成功应用，为整个高台子油层高含水期的稳油控水工作提供了实践依据。

Practice and acknowledgment on shallow profile modification in Gaotaizi reservoirs in Sazhong area

Gaotaizi reservoirs have a large amount of sub-layers without apparent barriers, so it is difficult to reduce interlayer conflict and control water cut increase through subdivision adjustment. Shallow profile modification technique is used in Gaotaizi reservoirs in western Nan 1 area through detailed well and layer selection and aiming to the water injection wells with large interlayer difference and rapid water cut increase in the oil production wells connected with them. It reduces the permeability of medium to high permeable layers, increases the water absorption of low permeable layers, and improves water flooding effect. The successful application of shallow profile modification in Nan 1 area provides practical evidence for the work of stabilizing oil production and controlling water cut in the stage of high water cut in the whole Gaotaizi reservoirs.