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| Number | Title | Issue Date |
| 7388382 | System for measuring Earth formation resistivity through an electrically conductive wellbore casing An instrument is disclosed for measuring resistivity of Earth formations from within a conductive pipe inside a wellbore drilled through the formations. The instrument includes a plurality of housings connected end to end and adapted to traverse the wellbore. At lea... | 06/17/2008 |
| 7366560 | Nuclear magnetic resonance method for body composition analysis A method is disclosed for analyzing composition of a body part from nuclear magnetic resonance measurements made on the body part. The method includes exciting a predetermined sequence of nuclear magnetic resonance phenomena in the body part and measuring nuclear ma... | 04/29/2008 |
| 7356411 | Method for acquiring and interpreting transient electromagnetic measurements A method for interpreting transient electromagnetic survey data includes measuring transient response of a medium over a plurality of switching events. The measured transient response to a first one of the current switching events is modeled. Transient response to t... | 04/08/2008 |
| 7355402 | Method and apparatus for hazardous liquid detection A method for hazardous liquid detection within a container includes inducing a static magnetic field in the container, inducing a radio frequency magnetic field in the container at a frequency selected to excite nuclear magnetic resonance phenomena in liquids; detec... | 04/08/2008 |
| 7343192 | Magnetic resonance imaging method and apparatus for body composition analysis A method is disclosed for analyzing body composition. The method includes inducing a static magnetic field in the body. The static magnetic field has a known distribution along a longitudinal axis of the body. A radio frequency magnetic field is induced in the body.... | 03/11/2008 |
| 7303017 | Perforating gun assembly and method for creating perforation cavities A perforating gun assembly (60) for creating communication paths for fluid between a formation (64) and a cased wellbore (66) includes a housing (84), a detonator (86) positioned within the housing (84) and a detonating cord... | 12/04/2007 |
| 7272503 | Method and apparatus for measuring formation conductivities from within cased wellbores by combined measurement of casing current leakage and electromagnetic response A method for determining spatial distribution of resistivity of Earth formations surrounding a wellbore having a conductive pipe therein includes measuring resistivity of the Earth formations using measurements of current leakage along the pipe at selected axial pos... | 09/18/2007 |
