Scraper receiver with filter upstream of a kicker valve
AssigneeSaudi Arabian Oil Company
InventorsJavaid S. Muhammad, Yazeed Alsubhi
Life of this patent
Estimating the term…
Abstract
A scraper receiver system includes a mainstream line of a pipeline for transporting a working fluid therethrough. A bypass line includes an inlet and an outlet fluidly coupled to mainstream line and a scraper (PIG) receiver is coupled within the bypass line to receive a scraper therein. At least one kicker valve is coupled within the bypass line downstream of the scraper receiver and a filter apparatus is coupled within the bypass line upstream of the kicker valve. The filter apparatus is operable to remove sludge and solid particles from the working fluid to prevent the sludge and solid particles from being carried to the at least one kicker valve.
Claims20
A scraper receiver system, comprising:
- a mainstream line of a pipeline for transporting a working fluid therethrough;
- a bypass line including an inlet and an outlet fluidly coupled to mainstream line;
- a scraper receiver vessel coupled within the bypass line, the scraper receiver vessel including a receiver housing arranged to receive a scraper therein and a hatch removably coupled to the receiver vessel housing;
- at least one kicker valve coupled within the bypass line downstream of the scraper receiver vessel, the at least one kicker valve operable to throttle a flow of the working fluid through the bypass line to zero;
- a filter apparatus coupled within the bypass line upstream of the kicker valve, the filter apparatus operable to remove sludge and solid particles from the working fluid passing therethrough to prevent the sludge and solid particles from being carried to the at least one kicker valve;
- and
- a pair of block valves fluidly coupled to the filter apparatus, a first block valve being coupled upstream of the filter apparatus and a second block valve being coupled downstream of the filter apparatus.
A method for receiving a scraper from a mainstream line of a pipeline, the method comprising:
- flowing a working fluid through the mainstream line to propel the scraper through the mainstream line;
- detecting the scraper approaching a scraper receiver vessel of a bypass line having an inlet and an outlet fluidly coupled to the mainstream line;
- opening at least one kicker valve in the bypass line to permit the working fluid to flow through the bypass line and propel the scraper into the bypass line;
- receiving the scraper in the scraper receiver vessel coupled within the bypass line;
- and
- flowing the working fluid through a filter apparatus in the bypass line upstream of the at least one kicker valve to remove sludge and solid particles from the working fluid.
A scraper receiver system, comprising:
- a mainstream line of a pipeline for transporting a working fluid therethrough;
- a bypass line including an inlet and an outlet fluidly coupled to mainstream line;
- a scraper receiver vessel coupled within the bypass line, the scraper receiver vessel including a receiver housing arranged to receive a scraper therein and a hatch removably coupled to the receiver vessel housing;
- at least one kicker valve coupled within the bypass line downstream of the scraper receiver vessel, the at least one kicker valve operable to throttle a flow of the working fluid through the bypass line to zero;
- a filter apparatus coupled within the bypass line upstream of the kicker valve, the filter apparatus operable to remove sludge and solid particles from the working fluid passing therethrough to prevent the sludge and solid particles from being carried to the at least one kicker valve;
- a mainline valve coupled within the mainstream line of the pipeline between the inlet and outlet of the bypass line;
- at least one isolation valve coupled within the bypass line between the inlet and the scraper receiver vessel, wherein the at least one isolation valve is operable to selectively permit and prohibit flow of the working fluid through the bypass line, wherein the mainline valve and the at least one isolation valve are automatically operable in response to a signal indicative of the scraper approaching the scraper receiver vessel.
Dependencies are inferred from the claim text.