Matches 1 - 4 out of 4


Match Document Document Title
US20090179648 COMBINED PROPAGATION AND LATERAL RESISTIVITY DOWNHOLE TOOL  
A combined resistivity tool incorporating both induction/propagation antennas and lateral resistivity antennas disposed in recesses of downhole tubulars, in which a lateral resistivity antenna...
US20080297161 Method and Apparatus for Determining Formation Boundary Near the Bit for Conductive Mud  
A method and apparatus for determining a parameter of interest of an earth formation during drilling of a borehole. A first toroidal coil antenna induces a current along a path that includes a...
US20160116625 Flat Metallic Strip Toroidal Coil  
A downhole device may include a closed ring of ferromagnetic material mounted on a conductive pipe. The downhole device may also include a first coil spirally wound around the closed ring...
US20130038332 Short Range Data Transmission In A Borehole  
The present disclosure is directed to an antenna for transfer of information along a drill string. The antenna has an antenna coil having a long side and short side. The antenna coil is adapted to...
Matches 1 - 4 out of 4