Abstract: The present invention is directed to an improved logging apparatus. The logging apparatus includes transmitters, receivers, and a controller member. The controller member is utilized to selectively energize the transmitters to generate an interrogation signal. The receivers are utilized to obtain measurements of the interrogation signal. The controller member can be utilized to substantially simultaneously process the recorded samples--such as by mathematically combining a plurality of measurements in order to obtain a measure of an attribute value which relates to at least one of the wellbore and surrounding formation.

Abstract: There is disclosed a portable storage apparatus comprising a container, a cover which is removably mountable on the container and which has a work surface thereon, and a hand-holdable tray assembly insertable into the container in nesting relationship which includes a tray having a centrally located upwardly extending handle which can be used to lift all of the trays out of the container.