injection pattern alteration

Aimed at the proplems exsiting in the process of the low permeabile reservoir production, the feasibility and the best adjustment moment of rhombus nine-spot well pattern transformation and infilling are studied with a Changqing oilfield′s block with the ubiquitous problems in low permeability oilfield development.

针对低渗透油藏开发过程中普遍存在的问题,选取长庆油田特低渗透油藏为研究对象,通过对该区块菱形反九点注采井网的调整,进行了井网转换和井网加密可行性研究,并提出相应的最优转换时机。