Abstract: On the basis of statistical data of oil fields, a rational relationship of well spacing and ultimate recovery is worked out in the light of maximum economic effect. The whole process of solving the problem from planning to development practice is presented in more detail.

摘要： 本文用实际油田的统计资料,以最大经济效益为前提,研究了采油井距与最终累计采油量的定量关系、获得确定最佳采油井数的公式。在合理井数条件下,求出最佳经济效益时的最终采油量。由此得出合理井网密度与最终累计采油量的定量关系。以马岭油田为例,计算合理并网密度15.6公顷/口,最终累计采油量折合为最终采收率为36.1%.