A wellhead hanger assembly is provided. In one embodiment, a system includes a wellhead hanger, an inner sleeve coupled to the wellhead hanger, a running tool coupled to the inner sleeve, and an outer sleeve coupled to the running tool. The outer sleeve may be positioned to transmit torque from the running tool to the wellhead hanger, and the wellhead hanger may be in castellated engagement with the outer sleeve via a set of castellations and mating slots. Additional systems, devices, and methods are also disclosed.

A transportable well capping system, kit, and methods are provided. The transportable well capping system can include a plurality of modular subsystems capable of fitting within a bed of a standard full-sized pickup truck. The modular subsystems can include a sealing mechanism subassembly including a plurality of different sized seals for securing to a range of diameters of well casings, a gas flow meter subassembly, a hydrogen sulfide scrubber subassembly, a compressor and storage subassembly capable of storing the scrubbed methane in a storage tank, and a methane destruction subassembly capable of igniting the scrubbed methane gas and converting it to carbon dioxide. The subassemblies are sized to be capable of fitting within the bed of a standard full-sized pickup truck and can be driven to a location of an abandoned well and fluidically interconnected in a manner to cap the abandoned well.

A transportable well capping system, kit, and methods are provided. The transportable well capping system can include a plurality of modular subsystems capable of fitting within a bed of a standard full-sized pickup truck. The modular subsystems can include a sealing mechanism subassembly including a plurality of different sized seals for securing to a range of diameters of well casings, a gas flow meter subassembly, a hydrogen sulfide scrubber subassembly, a compressor and storage subassembly capable of storing the scrubbed methane in a storage tank, and a methane destruction subassembly capable of igniting the scrubbed methane gas and converting it to carbon dioxide. The subassemblies are sized to be capable of fitting within the bed of a standard full-sized pickup truck and can be driven to a location of an abandoned well and fluidically interconnected in a manner to cap the abandoned well.

A tubing hanger orientation assembly includes an annular structure having a first set of engagement surfaces configured to guide an engagement feature from a first end portion of the annular structure to a second end portion of the annular structure in response to longitudinal movement of the annular structure in a first direction. A circumferential extent of the second end portion is less than a circumferential extent of the first end portion. The annular structure includes a second set of engagement surfaces configured to guide the engagement feature from the second end portion of the annular structure to a third end portion of the annular structure in response to longitudinal movement of the annular structure in a second direction. The third end portion extends between a first side of the first end portion and a second side of the first end portion along a circumferential axis of the annular structure.

A tubing hanger orientation assembly includes an annular structure having a first set of engagement surfaces configured to guide an engagement feature from a first end portion of the annular structure to a second end portion of the annular structure in response to longitudinal movement of the annular structure in a first direction. A circumferential extent of the second end portion is less than a circumferential extent of the first end portion. The annular structure includes a second set of engagement surfaces configured to guide the engagement feature from the second end portion of the annular structure to a third end portion of the annular structure in response to longitudinal movement of the annular structure in a second direction. The third end portion extends between a first side of the first end portion and a second side of the first end portion along a circumferential axis of the annular structure.

A side tipper system for a vehicle includes a container for carrying material and selectively discharging carried material. The container includes a container body defining an upper portion of a first side wall, a second side wall opposing the first side wall, and a pair of opposing end walls; a floor pivotally coupled to the second side wall; and a side door pivotally coupled to the floor and defining a lower portion of the first side wall in a closed position and forming a discharge opening in an open position. The system further includes end assemblies configured to be mounted to a vehicle chassis at respective ends of the container, each end assembly operatively coupled to the container for supporting the container and for controlling discharge of material by: moving the side door from the closed position to the open position; and lifting the container body relative to the chassis.

A side tipper system for a vehicle includes a container for carrying material and selectively discharging carried material. The container includes a container body defining an upper portion of a first side wall, a second side wall opposing the first side wall, and a pair of opposing end walls; a floor pivotally coupled to the second side wall; and a side door pivotally coupled to the floor and defining a lower portion of the first side wall in a closed position and forming a discharge opening in an open position. The system further includes end assemblies configured to be mounted to a vehicle chassis at respective ends of the container, each end assembly operatively coupled to the container for supporting the container and for controlling discharge of material by: moving the side door from the closed position to the open position; and lifting the container body relative to the chassis.

A single-tube double-wellhead drilling and production apparatus is provided, which includes a suction pile, two first wellhead heads, two second wellhead heads, two second guiding pipes, two tubings, two tubing hangers, and two plugs located inside and connected with a corresponding second wellhead head. Each second wellhead head is connected to a corresponding first wellhead head and is connected through a connecting pipeline which is provided with a control valve and a check valve. One end of each first wellhead head is connected with a corresponding first guiding pipe connected with the suction pile. Each second guiding pipe is located inside a corresponding first guiding pipe and is connected to an end of a corresponding second wellhead head. Each tubing hanger is located in and connected with a corresponding second wellhead head, is located below and communicates with a corresponding plug, end of which is provided with a corresponding tubing.

A single-tube double-wellhead drilling and production apparatus is provided, which includes a suction pile, two first wellhead heads, two second wellhead heads, two second guiding pipes, two tubings, two tubing hangers, and two plugs located inside and connected with a corresponding second wellhead head. Each second wellhead head is connected to a corresponding first wellhead head and is connected through a connecting pipeline which is provided with a control valve and a check valve. One end of each first wellhead head is connected with a corresponding first guiding pipe connected with the suction pile. Each second guiding pipe is located inside a corresponding first guiding pipe and is connected to an end of a corresponding second wellhead head. Each tubing hanger is located in and connected with a corresponding second wellhead head, is located below and communicates with a corresponding plug, end of which is provided with a corresponding tubing.

The present invention relates to an elastomeric seal that embraces the electrical conductors that pass through the wellhead and comprises an upper cylindrical portion, a lower frustoconical portion, one to three through holes longitudinally crossing the seal and one to three longitudinal cuts that go from the periphery of said through holes to the seal periphery. In an alternative of the invention, the seal comprises more than one through holes, one longitudinal cut that goes from the periphery of one of the through holes to the periphery of the seal and one or two longitudinal cuts that go from the periphery of one of said through holes to the periphery another through hole.