Patent ID: 6859034

Claim:
A method of logging of an earth formation using an logging tool conveyed in a borehole in said formation, the method comprising: (a) acquiring a first multiecho sequence from a first region of interest using a first radio frequency (RF) pulse sequence; (b) acquiring a second multiecho sequence from a second region of interest using a second RF pulse sequence; (c) determining at least one correction factor depending at least in part on a diffusivity of a fluid in said earth formation; and (d) combining said first and second multiecho sequences using said at least one correction factor to obtain a combined multiecho sequence, wherein at least one of the following conditions exists: (A) said second RF pulse sequence has at least one parameter different from a parameter of aid first RF pulse sequence; and (B) a gradient of a static magnetic field in said first region is different from a gradient of a static magnetic field in said second region.