分层压裂隔层厚度下限标准矿场试验研究

FIELD TEST & RESEARCH ON THE LOWER LIMIT STANDARD OF IMPERMEABLE LAYER THICKNESS FOR MULTI-LAYER FRACTURING

通过大庆油田分层压裂隔层厚度下限标准的矿场试验研究得出,岩性致密、稳定,且固井质量良好的隔层厚度下限标准可以由3m缩小到1.4m。这一试验结果为油田压裂层位的选择及增加油田可采储量的途径开阔了前景。

<ABSTRACT> Through the field test and research on the lower limit standard of the impermeable layer thickness during multi-layer fracturing in Daqing oilfield obtains that if the lithologic character of the impermeable-layer is compact and stable and the quaility of well cementation is good, the lower limit standard for the thickness of the spacer can be decreased from 3m to 1.4m.This test result broadens the prospects for selecting the field's fracturing position and for incre asing the oilfield recoverable reserve.