A portable blowdown system (PBS) and method de-inventories natural gas (NG) equipment in a NG system for servicing. The method comprises connecting the PBS to the NG equipment. The NG in the NG equipment is transferred to a blowdown drum of the PBS. Residual NG in the NG equipment is destroyed with a residual gas destruction (RGD) unit of the PBS. The NG in the blowdown drum of the PBS is transferred to the NG equipment after servicing.

A portable blowdown system (PBS) and method de-inventories natural gas (NG) equipment in a NG system for servicing. The method comprises connecting the PBS to the NG equipment. The NG in the NG equipment is transferred to a blowdown drum of the PBS. Residual NG in the NG equipment is destroyed with a residual gas destruction (RGD) unit of the PBS. The NG in the blowdown drum of the PBS is transferred to the NG equipment after servicing.

Systems and methods for temporary product capture, containment, and buffering to assist with hydrocarbon recompression and recapture operations in oil and gas environments is provided. In some aspects, the systems and methods are adapted to control a flow of fluid from an upstream location of a flowline of an oil and gas well into an inflatable, via a first conduit, until either a head pressure of the fluid within the flowline reaches a predetermined head pressure or a volume of fluid within the inflatable reaches a predetermined inflatable volume limit.

Systems and methods for temporary product capture, containment, and buffering to assist with hydrocarbon recompression and recapture operations in oil and gas environments is provided. In some aspects, the systems and methods are adapted to control a flow of fluid from an upstream location of a flowline of an oil and gas well into an inflatable, via a first conduit, until either a head pressure of the fluid within the flowline reaches a predetermined head pressure or a volume of fluid within the inflatable reaches a predetermined inflatable volume limit.

A pressure-reducing sampling apparatus includes a primary pressure chamber for receiving a pressurized fluid from a pressurized component and including a liquid outlet for collecting a sample of a liquid from the pressurized fluid in the primary pressure chamber, one or more secondary pressure chambers in fluid communication with the primary pressure chamber to receive and store a gas received from the primary pressure chamber, and a vent in fluid communication with a final secondary pressure chamber of the one or more secondary pressure chambers and configured to vent the gas from the final secondary pressure chamber.

Systems and methods for recovering hydrocarbon liquids from oil and gas pipelines are provided that include a tap provided in a section of pipe within a pipeline, wherein the tap includes a straw arranged to extend within the section of the pipe to a low point of the section of pipe; and a pump or compressor arranged to be fluidically coupled to the tap via a first conduit, wherein the pump or compressor is arranged to: draw liquid from the low point of the section of pipe via the tap and the conduit until a pressure within the section of pipe drops to a predetermined pressure; cross-compress the liquid, to raise the pressure from a first pressure to a second pressure that is higher than the first pressure; and inject the liquid at the second pressure back into the pipeline at a location downstream of the tap or into another adjoining pipeline or into a customer asset or into a storage container via a second conduit.

Systems and methods for recovering hydrocarbon liquids from oil and gas pipelines are provided that include a tap provided in a section of pipe within a pipeline, wherein the tap includes a straw arranged to extend within the section of the pipe to a low point of the section of pipe; and a pump or compressor arranged to be fluidically coupled to the tap via a first conduit, wherein the pump or compressor is arranged to: draw liquid from the low point of the section of pipe via the tap and the conduit until a pressure within the section of pipe drops to a predetermined pressure; cross-compress the liquid, to raise the pressure from a first pressure to a second pressure that is higher than the first pressure; and inject the liquid at the second pressure back into the pipeline at a location downstream of the tap or into another adjoining pipeline or into a customer asset or into a storage container via a second conduit.