Abstract: Connector assembly for use in a fluid medium comprising a male connector with a cylindrical pin with several axially spaced contact elements, and a female connector with a tubular housing and axially spaced annular contacts secured inside the housing. Seals with a flexible central portion are alternated with the contacts and with the latter define a bore to accommodate the pin. A chamber filled with dielectric liquid is defined within the housing as a rear extension of the bore, the entry of which is closed to external fluid by a sealing member. A free space is left around the flexible portion of each tubular seal, and each of said spaces communicates with the aforementioned chamber. Means are provided by which the pressure increases in the chamber when the pin is inserted. The pressure rise in the spaces around the seals increases the pressure force of the seals against the pin.

Abstract: Electrical connector assembly comprising a male and a female connector, each having a group of electrical contacts. The bore formed in the female connector to accommodate the male connector is sealed by a slidable shuttle and is filled with a dielectric liquid when the male connector is not inserted. The shuttle is subjected to a force which tends to keep it in sealing position, and is pushed towards the interior of the bore against the action of said force when the male connector is inserted. The shuttle and the end of the male connector are arranged so that the insertion of the latter brings about a positive connection between the two. This connection remains effective during withdrawal of the male connector, until the shuttle reaches its sealing position.

Abstract: A pump-down stinger assembly method for use with a well-logging tool or well bore perforator suspended from a well-logging cable utilizes a stinger adaptor which releasably attaches a length of well-logging cable to the lower end of the stinger adapter and allows the well-logging cable to be retrieved and pulled upwardly through a plurality of sections of stinger, or tubing.