Abstract: Embodiments and methods relate to pulling and installing a product line along an underground arcuate path beneath an obstacle, including pulling the product line for an extended length (i.e. a length that might otherwise be deemed impracticable) along the underground arcuate path beneath the obstacle. Embodiments also relate to a pulling apparatus for installing a product line using a casing along an underground arcuate path beneath an obstacle, having a casing pull head connected to the casing, a product line pull head assembly connected to the product line, and a pull bracket connected to the product line pull head assembly and to the casing pull head sleeve frame.

Abstract: The disclosure relates to embodiments of a thixotropic, non-cementitious, thermal grout and applications or methods of use of the grout related to horizontal directional drilling, trenchless technology, trenching, and installation of pipe, conduits, ducts, utility lines, and other product lines which may, e.g., be in trenches, underground, or under obstacles, such as a body of water or roadways.

Abstract: Working an underground arcuate path around at least a portion of an obstacle with a casing extending into the underground arcuate path, connecting a rotating control device to the casing; and a Venturi device connected to the rotating control device.

Abstract: The disclosure relates to the field of electric power infrastructure and repurposing existing oil and gas pipeline, or other pipelines which are no longer in use for their original purpose, for installation of conduits and electrical cables/conduits, typically underground, for electric power transmission.

Abstract: The disclosure relates to the field of electric power infrastructure and repurposing existing oil and gas pipeline, or other pipelines which are no longer in use for their original purpose, for installation of conduits and electrical cables/conduits, typically underground, for electric power transmission.

Abstract: Working an underground arcuate path around at least a portion of an obstacle with a casing extending into the underground arcuate path, connecting a rotating control device to the casing; and a Venturi device connected to the rotating control device.

Abstract: Embodiments and methods relate to pulling and installing a product line along an underground arcuate path beneath an obstacle, including pulling the product line for an extended length (i.e. a length that might otherwise be deemed impracticable) along the underground arcuate path beneath the obstacle. Embodiments also relate to a pulling apparatus for installing a product line using a casing along an underground arcuate path beneath an obstacle, having a casing pull head connected to the casing, a product line pull head assembly connected to the product line, and a pull bracket connected to the product line pull head assembly and to the casing pull head sleeve frame.

Abstract: Embodiments and methods relate to pulling and installing a product line along an underground arcuate path beneath an obstacle, including pulling the product line for an extended length (i.e. a length that might otherwise be deemed impracticable) along the underground arcuate path beneath the obstacle. A sealing/locking mechanism is located at one end of an outer pipe and at an end of an inner pipe at a position within the underground arcuate path.

Abstract: The disclosure relates to embodiments of a thixotropic, non-cementitious, thermal grout and applications or methods of use of the grout related to horizontal directional drilling, trenchless technology, trenching, and installation of pipe, conduits, ducts, utility lines, and other product lines which may, e.g., be in trenches, underground, or under obstacles, such as a body of water or roadways.

Abstract: The disclosure relates to the field of electric power infrastructure and repurposing existing oil and gas pipeline, or other pipelines which are no longer in use for their original purpose, for installation of conduits and electrical cables/conduits, typically underground, for electric power transmission.

Abstract: The disclosure relates to the field of electric power infrastructure and repurposing existing oil and gas pipeline, or other pipelines which are no longer in use for their original purpose, for installation of conduits and electrical cables/conduits, typically underground, for electric power transmission.

Abstract: Embodiments and methods relate to pulling and installing a product line along an underground arcuate path beneath an obstacle, including pulling the product line for an extended length (i.e. a length that might otherwise be deemed impracticable) along the underground arcuate path beneath the obstacle. Embodiments also relate to a pulling apparatus for installing a product line using a casing along an underground arcuate path beneath an obstacle, having a casing pull head connected to the casing, a product line pull head assembly connected to the product line, and a pull bracket connected to the product line pull head assembly and to the casing pull head sleeve frame. An alternative embodiment relates to an apparatus for installing a product line along an underground arcuate path beneath an obstacle in the ground having a drill pipe including a drill bit, a larger diameter drill pipe surrounding the drill pipe, and a cutting tool connected to the larger diameter drill pipe and surrounding the drill pipe.

Abstract: Working an underground arcuate path around at least a portion of an obstacle with a casing extending into the underground arcuate path, connecting a rotating control device to the casing; and a Venturi device connected to the rotating control device.

Abstract: A system for recovering drilling mud in drilling an underground arcuate path around at least a portion of an obstacle has a conductor casing, a drill pipe surrounded by the conductor casing for at least a portion of an axial length of the drill pipe, a flow line connected to the conductor casing at a downhole position, and a pump coupled to the flow line placed at another downhole position. A volume of drilling mud within the underground arcuate path is pumped from the underground arcuate path to the surface and recovered for recirculation.

Abstract: A system for recovering drilling mud in drilling an underground arcuate path around at least a portion of an obstacle has a conductor casing, a drill pipe surrounded by the conductor casing for at least a portion of an axial length of the drill pipe, a flow line connected to the conductor casing at a downhole position, and a pump coupled to the flow line placed at another downhole position. A volume of drilling mud within the underground arcuate path is pumped from the underground arcuate path to the surface and recovered for recirculation.

Abstract: A system and method for designing and constructing an optimized underground crossing through the earth is provided. The underground crossing allows one or more delivery line to pass through the earth. The method involves forming an investigation bore path along a preliminary path of the underground crossing and collecting geological data along the investigation bore path. The method involves determining a selected bore path for the underground crossing and finalizing a design for the construction of the underground crossing. The finalized design is based upon the collected geological data. The method involves obtaining one or more permits for the underground crossing based on the finalized design.

Abstract: New apparatii and processes are disclosed to create fluid continuity between opposite ends of a route drilled or bored under and/or around an obstacle. This invention allows fluids to be pumped through a reamer and a hollow swivel from either or both sides of the obstacle. It also allows the direct transfer of fluids from one side to the other through the connecting conduit located in the annular space produced during drilling and reaming operations.