Concerning to Liao He Oilfield actual condition,the method of block layer by injecting detergent has been reseached by NMRI technology of proton density 2DFT spin-echo in BRUKE 47/40 system.

• 利用核磁共振成象技术（NMRI），采用质子密度的2DFT的自旋回波成像方法，针对辽河油田的实际情况，采用注泡沫剂封堵地层的方法进行了研究。