Abstract: An electromagnetic propagation tool using magnetic dipole antennas comprising small current loops having characteristics of a point dipole is presented. The electromagnetic tool comprises a drill collar segment having at least one dipole antenna for each transmitter and receiver antenna. The dipole antennas are disposed within pockets formed in the drill collar segment.

Abstract: A steerable motor system with integrated formation evaluation logging capacity is presented. The device comprises a housing, a formation resistivity logging tool, a surface signaling device, a density logging tool, a porosity logging tool and a downhole motor and drill. The formation resistivity logging tool is located below the downhole motor and is mounted within the housing wherethrough a drive shaft, extending from the downhole motor, is disposed. Power and signal cables are located within an outer shell of the housing and connect the surface signaling device with the resistivity logging tool. In an alternate embodiment, the resistivity logging tool is located between a motor stabilizer and the drill bit. The present invention allows for increased drill angle during wellbore drilling and formation evaluation.

Abstract: A bus bar tab connector which electrically and mechanically connects an electrically conductive tab extending from a bus bar to an electrically conductive tab from an external source is presented. In accordance with the present invention, the conductive tabs are slidably received into the bus bar connector and held together by either a spring force or a cammed shaft. The tabs are both easily connected and separated by the connector, requiring no special tools for connecting or separation. The bus bar connector of the present invention does not cause a decrease in current carrying capacity.