Abstract: An improved pressure type connection on stepped-thread Hydril-type tubing and casing tool joints is disclosed, wherein a secondary sealing means is included between the stepped threaded areas of the Hydril-type connector. The secondary sealing means includes an annular ring of relatively rigid, internally tenacious plastic or rubber material, which serves to contain well pressure if the metal-to-metal sealing surfaces on the pin and box members of the Hydril-type connector are damaged. With such secondary sealing rings, damaged Hydrill-type connectors can still be used, without having to scrap same, or having to repair the damaged area at great expense.

Abstract: An improved pressure type connection on stepped-thread Hydril-type tubing and casing tool joints is disclosed, wherein a secondary sealing means is included between the stepped threaded areas of the Hydril-type connector. The secondary sealing means includes an annular ring of relatively rigid, internally tenacious plastic or rubber material, which serves to contain well pressure if the metal-to-metal sealing surfaces on the pin and box members of the Hydril-type connector are damaged. With such secondary sealing rings, damaged Hydril-type connectors can still be used, without having to scrap same, or having to repair the damaged area at great expense.

Abstract: An improved pressure type connection on stepped thread Hydril-type tubing and casing tool joints is disclosed, wherein a secondary sealing means is included between the stepped threaded areas of the Hydril-type connector. The secondary sealing means includes an annular ring of relatively rigid, internally tenacious plastic or rubber material, which serves to contain well pressure if the metal-to-metal sealing surfaces on the pin and box members of the Hydril-type connector are damaged. With such secondary sealing rings, damaged Hydril-type connectors can still be used, without having to scrap same, or having to repair the damaged area at great expense.

Abstract: Apparatus for removing water from solid drill cuttings is disclosed. The apparatus includes a rotatable, cylindrical retort vessel having a counter rotating auger-type conveyor therein, with the vessel heated by an induction heating coil surrounding the vessel and travelling along the length thereof. In a preferred embodiment the apparatus includes a general assembly of a pair of retort vessels each with a counter rotating auger-type conveyor therein, located generally in the same vertical plane, with the downstream end of the upper vessel being in communication with the upstream end of the lower vessel. A method of removing water from drill cuttings is also disclosed.

Abstract: Hydrocarbons are removed from solids such as drill cuttings in apparatus including a rotating cylindrical retort vessel having a counter rotating auger-type conveyor therein, the auger-type conveyor is eccentrically located at the bottom of the vessel, the vessel is heated by an induction heating coil surrounding the vessel and traveling along the length thereof, and a retention device is inserted at the downstream end of the retort vessel in order to impede the discharge of solids traveling therethrough, to ensure more complete hydrocarbon removal, and the apparatus includes a general assembly of a pair of retort vessels, each with a counter rotating auger-type conveyor therein, located generally in the same vertical plane, with the downstream end of the upper vessel being in communication with the upstream end of the lower vessel.

Abstract: An improved pressure type connection on stepped-thread Hydril-type tubing and casing tool joints is disclosed, wherein a secondary sealing means is included between the stepped threaded areas of the Hydril-type connector. The secondary sealing means includes an annular ring of relatively rigid, internally tenacious plastic or rubber material, which serves to contain well pressure if the metal-to-metal sealing surfaces on the pin and box members of the Hydril-type connector are damaged. With such secondary sealing rings, damaged Hydril-type connectors can still be used, without having to scrap same, or having to repair the damaged area at great expense.