页岩核磁共振孔隙度精确测定实验研究

杜群杰

Experimental Study on Accurate Determination of Shale Porosity by Nuclear Magnetic Resonance

DU Qunjie

图4 脉冲序列对比. (a) FID脉冲序列；(b) CPMG脉冲序列

Fig 4. Comparison of FID and CPMG pulse sequence. (a) FID; (b) CPMG