Abstract: A wellbore apparatus may include first and second tubular members joined together in end-to-end relation, the first tubular member having a reduced outer diameter end portion. The wellbore apparatus may further include a removable modular antenna assembly comprising a cylindrical dielectric housing removably positioned on the reduced outer diameter end portion of the first tubular member, at least one antenna coil carried by the cylindrical dielectric housing, and a first electrical connector coupled to the at least one antenna coil. The wellbore apparatus may also include resistivity processing circuitry coupled to the first electrical connector to determine an electrical resistivity of a wellbore based upon the at least one antenna coil.

Abstract: A wellbore apparatus may include first and second tubular members joined together in end-to-end relation, the first tubular member having a reduced outer diameter end portion. The wellbore apparatus may further include a removable modular antenna assembly comprising a cylindrical dielectric housing removably positioned on the reduced outer diameter end portion of the first tubular member, at least one antenna coil carried by the cylindrical dielectric housing, and a first electrical connector coupled to the at least one antenna coil. The wellbore apparatus may also include resistivity processing circuitry coupled to the first electrical connector to determine an electrical resistivity of a wellbore based upon the at least one antenna coil.

Abstract: This invention pertains to keeping your shoes free from black marks and scuffs. The gear shifter shoe guard was designed with two separate parts. First being a rubber sleeve smaller around than the gear shifter on a street bike. This rubber sleeve is glued to the inside of a foam sleeve, which is the second part. With the rubber sleeve meeting the rubber on the gear shifter, this will create friction that will not allow the gear shifter shoe guard to fall off while switching gears. To mount the gear shifter shoe guard to the gear shifter, you will need to take your two index fingers at the open end and stretch the gear shifter shoe guard out. Slide the gear shifter shoe guard on the gear shifter all the way until you cover up the gear shifter completely, and it will take its original shape.