APPLICATION OF NUCLEAR MAGNETIC RESONANCE LOGGING TECHNOLOGY IN PHYSICAL PROPERTY ANALYSIS OF ROCK
-
摘要: 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。Abstract: 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.
-
Key words:
- relaxation /
- cut off value /
- T2 spectrum /
- physical property of rock /
- Nuclear Magnetic Resonance
-
[1] 孙建孟,李召成,耿生臣等.核磁共振测井T2cutoff确定方法探讨[J].测井技术,2001,25(3):175～178 [2] 肖立志,石红兵.低场核磁共振岩心分析及其在测井解释中的应用[J].测井技术,1998,22(1):42～49 [3] Freedman R,Heaton N.Fluid characterization using Nuclear Magnetic Resonance Logging [J].Petrophysics,2004,45(3):241～250 [4] Appel M.Nuclear magnetic resonance and formation porosity[J].Petrophysics,2004,45(3):296～307 [5] 黄乔松,赵文杰,杨济泉等.核磁共振渗透率模型研究与应用[J].青岛大学学报(自然科学版),2004,17(4):37～40 [6] 王立锦,周尚文,周达明等.核磁共振弛豫方法测定砂岩有效渗透率[J].波谱学杂志,2003,20(1):57～61 [7] 邵维志,丁娱娇.MRIL-P型核磁共振测井技术及应用[J].测井技术,26(1):205～212 [8] 高敏,安秀荣,祗淑华等.用核磁共振测井资料评价储层的孔隙结构[J].测井技术,2000,24(3):188～193 [9] 刘堂宴,王绍民,傅容珊等.核磁共振谱的岩石孔喉结构分析[J].石油地球物理勘探,2003,38(3):328～333 -
点击查看大图
计量
- 文章访问数: 931
- HTML全文浏览量: 80
- PDF下载量: 489
- 被引次数: 0
下载:
苏公网安备32021102000780号