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由于裂缝的存在,低渗透油田开发的合理注采井网的研究就变得至关重要。介绍了低渗透油田开发井网的几种主要形式即三角形反七点、正方形反九点、菱形反九点和矩形五点井网。对低渗透油田开发的合理井网进行了认真分析,指出低渗透油田开发的合理井网应该是开发初期采用菱形反九点井网,中后期再调整为矩形五点井网。在此基础上,提出了低渗透油田开发合理井网部署的几点原则。并对合理的井、排距与井网密度做了认真探讨。
Due to the existence of fractures, the research of rational injection and production well patterns developed in low-permeability fields has become crucial. The main forms of well patterns for the development of low permeability oilfields are introduced: triangular anti-seven points, square anti-nine points, diamond anti-nine points and rectangular five-point well pattern. The rational well pattern developed in low permeability oilfield has been carefully analyzed. It is pointed out that the rational well pattern developed in low permeability oilfield should be the rhombus inverted nine dot pattern at the initial stage of development and the rectangular five dot pattern in the middle and later periods. Based on this, some principles of rational well pattern deployment in low permeability oilfield are put forward. And reasonable wells, spacing and well density done a serious discussion.