Similar to pipelines or flowlines, risers transport produced hydrocarbons, as well as production materials, such as injection fluids, control fluids and gas lift. Because the rigid risers are also fixed to the seafloor, vertical displacement occurs between the top of the riser and its connection point on the facility.
A riser, also known as a feeder, is a reservoir built into a metal casting mold to prevent cavities due to shrinkage. Most metals are less dense as a liquid than as a solid so castings shrink upon cooling, which can leave a void at the last point to solidify.
Furthermore, what is a riser in pipeline? 1. riser pipeline – a vertical pipe in a building. riser main, riser pipe, riser. pipage, pipe, piping – a long tube made of metal or plastic that is used to carry water or oil or gas etc.
Then, what is a riser system?
A riser is a pipe that connects an offshore Floating Production Structure or a Drilling Rig to a sub-sea system either for production purposes such as drilling, production, injection and export, or for drilling, completion and workover purposes.
What is a flowline in oil and gas?
The well flowline, or simply flowline, is the first “pipeline” system connected to the wellhead. The flowline carries total produced fluids (e.g., oil, gas, and production water) from the well to the first piece of production equipment—typically a production separator.
What is a riser diagram?
riser diagram. A diagram (two-dimensional, in a vertical plane) which shows the major items of electrical equipment in a building; displays, floor by floor, the feeders and major items of equipment.
What is riser design?
Riser Design (Casting) Definition: Riser is defined as a reservoir for supplying molten metal to the casting cavity to compensate (additional molten metal) the liquid shrinkages taking place due to solidification.
How does a wet riser work?
Wet Risers (Wet /pre-pumped standpipes) Wet rising mains are fitted in tall buildings due to the excessive pressures required to pump water to high levels. A Wet riser is a supply system intended to distribute water to multiple levels or compartments of a building, as a component of its fire fighting systems.
What is a stage riser?
The answer to this question is that stage riser is essentially just another name for a low height portable stage. They’re usually used interchangeably. Stage risers elevate your performance so that it’s easier for the audience to see and hear.
What is a service riser?
Dry risers do not contain water when they are not being used but are charged with water by fire service pumping appliances when necessary. For more information see: Dry riser. Wet riser: Used to supply water within buildings for fire-fighting purposes. Wet risers are permanently charged with water.
What is a riser pipe used for?
n a vertical pipe in a building a long tube made of metal or plastic that is used to carry water or oil or gas etc.
How do you calculate riser size?
Risers and treads are calculated by finding the total rise, from the landing where the bottom stair rests, to the upper finished floor. The total rise is divided by the desired riser height. When the result is a fraction, round up or down to the nearest whole number.
What is a riser valve?
Riser – a vertical metal or plastic supply line that connects a faucet or shower fixture to the water supply stop valve.
Why is it called a riser room?
Riser room is a technical room (a control room) where the fire riser/sprinkler is set-up and controlled from. It is also said to be a room in a building where the fire pump and automatic sprinklers are located. This room contains pipes, valves, gauges, etc, to control the operation of the fire sprinkler.
What is the difference between dry riser and wet riser system?
Dry and wet riser; what is the difference between them? A dry riser is made up of a system of valves and pipework that enables the Fire Service to pump water up to upper floors of a building. A wet riser is made up of a system of valves and pipework that are kept permanently filled with water.
What is a water riser?
A dry riser is a normally empty pipe that can be externally connected to a pressurized water source by firefighters. It is a vertical pipe intended to distribute water to multiple levels of a building or structure as a component of the fire suppression systems.
What is a flexible riser?
A Flexible Riser is a flexible pipe that transfers materials from the seafloor to the drilling and production facilities and from the facilities to the seafloor as well.
What is a dry riser inlet?
A dry riser system includes an inlet at ground level on an outside face of the building and outlets (known as landing valves) fitted in cabinets at each floor level, allowing fire and rescue service personnel to pressurise the main from their appliances.
What is a mechanical riser?
A Riser clamp is a type of hardware used by mechanical building trades for pipe support in vertical runs of piping (risers) at each floor level. The devices are placed around the pipe and integral fasteners are then tightened to clamp them onto the pipe.