The present invention concerns a calculation method (1000) for the positioning of sensors for measuring an odorant gas in a natural gas network (2000), comprising the steps of: acquisition (1010) of data representing the physical state of the natural gas network (2000), simulation (1020) of the natural gas network (2000), calculation (1030) of the position of odorant gas sensors.

The present disclosure provides a system and method for odorizing natural gas flowing through a distribution pipeline. The system includes a bypass line adjacent to a distribution pipeline, wherein bypass gas flows through the bypass line and an odorant tank connected to the bypass line, and into the distribution pipeline; a high-flow control valve and a low-flow control valve in the bypass line, wherein bypass gas flows through the odorant tank into the distribution pipeline when the high-flow control valve or the low-flow control valve is open; and a programmable logic controller connected to the high-flow and low flow control valve; wherein the programmable logic controller opens the high-flow or low-flow control valve for a predetermined dwell time proportional to an amount of bypass gas needed to odorize gas in the distribution pipeline each time that a preselected quantity of gas flows through the distribution pipeline.

The present disclosure provides a system and method for odorizing natural gas flowing through a distribution pipeline. The system includes a bypass line adjacent to a distribution pipeline, wherein bypass gas flows through the bypass line and an odorant tank connected to the bypass line, and into the distribution pipeline; a high-flow control valve and a low-flow control valve in the bypass line, wherein bypass gas flows through the odorant tank into the distribution pipeline when the high-flow control valve or the low-flow control valve is open; and a programmable logic controller connected to the high-flow and low flow control valve; wherein the programmable logic controller opens the high-flow or low-flow control valve for a predetermined dwell time proportional to an amount of bypass gas needed to odorize gas in the distribution pipeline each time that a preselected quantity of gas flows through the distribution pipeline.

A fluid injection system for dispensing a solution into a fluid flow in a flow line, the fluid injection system including a storage tank having a product to be dispensed therein. The system includes a connector for connection to a fluid flow line. The connector has an outlet port for diverting fluid from the flow line into the tank, an inlet port for returning a mixture of fluid and/or product back into the fluid flow line, and a restrictor provided between the inlet and outlet ports. The system includes an inlet dip tube and an outlet dip tube provided inside the tank and a mixing chamber connected between the inlet dip tube and the outlet dip tube. The mixing chamber is configure to mix the fluid with the product to create a fluid/product mixture, wherein the fluid/product mixture is injected back into the fluid flow line via the inlet port.

A fluid injection system for dispensing a solution into a fluid flow in a flow line, the fluid injection system including a storage tank having a product to be dispensed therein. The system includes a connector for connection to a fluid flow line. The connector has an outlet port for diverting fluid from the flow line into the tank, an inlet port for returning a mixture of fluid and/or product back into the fluid flow line, and a restrictor provided between the inlet and outlet ports. The system includes an inlet dip tube and an outlet dip tube provided inside the tank and a mixing chamber connected between the inlet dip tube and the outlet dip tube. The mixing chamber is configure to mix the fluid with the product to create a fluid/product mixture, wherein the fluid/product mixture is injected back into the fluid flow line via the inlet port.

A flow meter system and method measures fluid flow in a conduit. The conduit has a conduit axis. The flow meter includes a sensor configured to provide measurement data relating to the volumetric or mass flowrate though the conduit, and a processor configured to determine flow per unit time in the conduit using the measurement data, an uncertainty measurement per unit time using the measurement data, and an uncertainty quantity using the uncertainty measurement per unit time. The uncertainty quantity is totaled over a time period.

The first aspect of the instant claimed device is a system of equipment allowing addition of solid materials to a pipeline wherein said solid material is conveyed in such a way as to be readily dissolved by the liquid in said pipeline, comprising: (a) a solid material storage container which acts as a material feeder; (b) feed pipe to convey fluid from a connected pipe to said solid material; (c) and means for holding said solid material in place for a sufficient length of time such that the liquid in said process pipeline can contact and dissolve said solid material and carry it in the fluid downstream of the process pipeline.

The first aspect of the instant claimed device is a system of equipment allowing addition of solid materials to a pipeline wherein said solid material is conveyed in such a way as to be readily dissolved by the liquid in said pipeline, comprising: (a) a solid material storage container which acts as a material feeder; (b) feed pipe to convey fluid from a connected pipe to said solid material; (c) and means for holding said solid material in place for a sufficient length of time such that the liquid in said process pipeline can contact and dissolve said solid material and carry it in the fluid downstream of the process pipeline.

A flow management system includes an expandable device that is configured for attachment to a wall surface of a conduit and that is adjustable between an expanded configuration and a collapsed configuration. The flow management system further includes a fluidic actuator in fluid communication with the expandable device and a control module. The control module is configured to control the fluidic actuator to deliver actuation fluid to the expandable device to expand the expandable device for compacting a flow blockage within the conduit to create a channel adjacent the flow blockage and to withdraw actuation fluid from the expandable device to collapse the expandable device for opening the channel to a fluid flow within the conduit.

Treating a sulfide scale includes contacting the sulfide scale with an oxidizing composition that includes a first oxidizer and a second oxidizer.