核磁共振录井技术在岩石物性分析方面的应用研究

APPLICATION OF NUCLEAR MAGNETIC RESONANCE LOGGING TECHNOLOGY IN PHYSICAL PROPERTY ANALYSIS OF ROCK

王志战 翟慎德 周立发 邓美寅 王守军

Wang Zhizhan Zhai Shende Zhou Lifa Deng Meiyin Wang Shoujun

西北大学地质系 西安710069 2. 中国石化胜利石油管理局地质录井公司 山东东营257064

Geology Department, Northwest University, Xi'an 710069, China 2. Shengli Geologging Company, SINOPEC, Dongying, Shandong 257064, China

核磁共振录井技术是利用油和水中的氢原子在磁场中具有共振并产生信号的特性,来探测和评价岩石物性。在实验样品类型、大小及钻井液浸泡对测量结果影响不大的基础上,对岩样的孔隙度、T2截止值、渗透率、可动流体饱和度、含油饱和度、孔喉分布、润湿性、原油粘度等多个方面进行了应用研究和探讨,并阐述了所取得的认识。研究认为核磁共振录井技术实现了对岩石物性的快速测量和评价,对现场决策、完井及试油讨论具有重要的参考价值和指导意义。

Hydrogen atoms in oil and water resonate and produce signal in magnetic field.NMR mud-logging technology uses these characteristics in petrophysic survey and evaluation.Based on such experiments that sample type,size and drlling fluid almost have no influence on measurement results,application research and discussion are carried out from such aspects as porosity,T2 cutoff value,permeability,movable fluid saturation,oil saturation,pore and pore throats distribution,wettability,oil viscosity,etc.Research proves that,the NMR logging technology realizes rapid measurement and evaluation of petrophysics,and has guiding significance and reference value for in-site decision-making and after drilling and testing discussion.

国家重大基础研究(973)项目(2003CB214601)

https://doi.org/10.11781/sysydz200506619