×

NMR log processing using wavelet filter and iterative inversion

  • US 6,225,803 B1
  • Filed: 10/29/1998
  • Issued: 05/01/2001
  • Est. Priority Date: 10/29/1998
  • Status: Expired due to Fees
First Claim
Patent Images

1. A method of nuclear magnetic resonance (NMR) well log processing comprising the steps of:

  • forming a wavelet decomposition of an NMR data signal, thereby obtaining a set of first coefficient values having a preselected first maximum scale and a preselected first minimum scale;

    windowing a preselected subset of said set of first coefficient values, thereby forming a windowed set of coefficient values; and

    generating an inverse wavelet transform of said windowed set of coefficient values, to form a first reconstruction of said NMR signal.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×