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本文介绍了大庆油田开发层系从粗到细的演变过程。油田初期井网,依据各油层组的情况划分和组合开发层系,一般只分为1—2套。后来,依据各砂岩组,甚至依据各单油层的地质特点和开采状况又重新组合开发层系,各区块达到3—6套。本文总结了细分开发层系的依据和效果。最后对开发层系的进一步变化趋势进行了预测。
This article describes the Daqing oilfield development strata from coarse to fine evolution. The early well pattern of the oilfield is divided into two layers according to the conditions of each reservoir group and the combination of development strata. Later, according to each sandstone group, the development strata were recombined even according to the geological characteristics and exploitation conditions of each single oil layer, reaching 3-6 sets in each block. This article summarizes the basis and effect of subdividing development strata. Finally, the development trend of the strata is predicted.