井间示踪剂监测技术在渤海A油田的区块整体应用研究

Research on block overall application of inter-well tracer monitoring technology in A oilfield,Bohai

针对A油田构造条件复杂,多级断层发育,储层非均质性强,对区块注水状况认识不足的问题,在海上油田利用氟苯甲酸示踪剂种类多、测试精度高、检测不发生相互干扰等优势,对C区块8个注水井组开展了整体示踪剂测试。结果表明,该区块水窜程度差异较大,其中水驱前缘突进速率为1.3~95.2m/d,水窜通道渗透率为6079~523626mD,总体积为168795m^(3)。区块整体示踪剂测试的有效实施,为后续区块整体开发方案的调整、增产措施的制定提供了重要依据。

Aiming at the fact that A oilfield has complex geological conditions,multiple faults,strong reservoir heterogeneity and lacks understanding of water flooding,we took advantage of multiple types,high test precision and detection without interference etc.of fluorobenzoic acid tracers,carries out overall tracer test in 8 injection well groups in Block C.The results showed that the water breakthrough degree of the whole reservoir C was quite different.The velocity of the water flooding front was 1.3~95.2 m/d,the permeability of the water breakthrough channels was 6079~523626 mD,and the total volume was 168795 m^(3).The effective implementation of the overall tracer test in the reservoir provided important evidence for the adjustment of the whole reservoir development strategy and the basis of stimulation measures.