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Applications

NMR Application in Petroleum & Porous Medium

NMR Applications in Petroleum & Porous Medium

Petroleum & Porous Medium NMR well-logging technology is used to reservoir evaluation and formation evaluation. NMR technology can acquire abundant formation information, such as flowing liquid content in a formation, porosity, permeability, oil saturation, aperture size and distribution in rock and so on. The advantages of NMR technology is high precision, simple calibration, avoiding influence of slopping, acquiring many parameters in one well-logging. Geotechnical & Coal mine.
1.LTHP condition for freezing and thawing mechanism analysis 
  • Freezing and thawing mechanism analysis of soil or rock
  • Rock damage degradation under freezing and thawing condition
  • Mechanism of natural gas hydrate formation and decomposition
2.HTHP condition for Percolation mechanism analysis
  • Percolation mechanism analysis
  • Dynamic and real-time analysis the oil/water saturation and distribution changes in displacement process
  • Displacement experiment imaging visualization analysis
Visual observation of permafrost melting process
198[1]
The bright signal is on behalf of the water. With melting process, signal gradually from the outside to the inside, and finally completely melted
High pressure displacement
MnCl2 Solution flooding oil (Water flooding oil) process
199[1]
1.Red-Yellow-Blue,Signals weaken sequentially
2.Oil signal strength,MnCl2 solution signal weaken
The left is the water flooding process from left to right. Firstly, the oil in left pores is displaced by water. Then displacing water spread to the entire core from the left core with the displacement time longer,until all the oil inside the core is displaced.
 
 Drilling Fluid Analysis
 
 1.Oil content test for drilling fluid
  • Oil analysis (heavy oil, medium oil, light oil division)
  • Oil field pollution (Rapid Detection of oil sludge moisture content)
 2.Oil properties evaluation
186[1]
 Stability test minimum oil content is 0.01%, the lowest 0.002% oil content can be detected
197[1]
  Oil content & moisture test of drilling fluid in different depth
 
Core Image 
 
Crack Imaging 
183[1]
Core Imaging 
 184[1]
Multidimensional NMR analysis for oil & moisture diffusion 
 
1.Oil content test for drilling fluid 
  •  Oil and gas distinguish (T1-T2)
  •  Oil and moisture distinguish (D-T2)
2D Mixed oil experiment  
196[1]
Core & Rock waste  
    •  Porosity
    •  Permeability
    •  BVI
    •  FFI
    •  Oil saturation
    •  CBW
    •  Pore fluid distribution
    •  Pore size distribution
    •  T1/T2 cutoff time
  • 195[1]
  • Porosity:15.20%
  • BVI:45.85%
  • FFI:54.15%
  • Oil saturation:12.50%
  • Water saturation:87.50%
  • WOS: Origin Sample
  • WWS: Saturated Water
  • WMS: Saturated Manganes

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