Solid trap for ESP applications
AssigneeSaudi Arabian Oil Company
InventorsJinjiang Xiao, Hattan M. Banjar
Life of this patent
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Abstract
A system includes a solids trap disposed in a well. The system includes an inner annulus, an outer annulus, and a chamber between the inner annulus and the outer annulus. A solids accumulation zone is formed in the chamber. A pump is fluidly connected to the solids trap. A fluid stream carrying solids flows from the pump. The fluid stream carrying solids is configured to follow a path delimited by the outer annulus and the chamber until the fluid stream deposits the solids in the solids accumulation zone and departs the solids trap via the inner annulus into a tubing.
Claims17
A system comprising:
- a solids trap disposed in a well and comprising an inner annulus, an outer annulus, and a chamber, wherein the chamber is between the inner annulus and the outer annulus such that a flow path is defined from the outer annulus through the chamber to the inner annulus, wherein a solids accumulation zone is formed in the chamber;
- a pump fluidly connected to the solids trap;
- and
- a fluid stream carrying solids flowing from the pump, wherein the fluid stream carrying solids is configured to follow the flow path by entering the outer annulus and flowing into the chamber until the fluid stream deposits the solids in the solids accumulation zone and departs the solids trap via the inner annulus into a tubing;
- and
- a cleaning component configured to clean the solids accumulation zone, the cleaning component comprising a dual concentric coil tubing with a packer.
A method comprising:
- installing a tubing in a well, providing an annular space between a casing and the tubing;
- providing a solids trap in the annular space and having an upper and a lower connection in fluid communication with the tubing, wherein the solids trap comprises an inner annulus, outer annulus, and a chamber, wherein the chamber is between the inner annulus and the outer annulus such that a flow path is defined from the outer annulus through the chamber to the inner annulus;
- installing a pump for pumping fluid from the lower connection to the upper connection of the solids trap;
- pumping fluid containing solids, via the pump, from the well through the flow path by entering the outer annulus and flowing into the chamber;
- forming a solids accumulation zone, via the flow path, in the chamber between the pump and the tubing;
- depositing solids into the solids accumulation zone, via the flow path;
- and
- departing the solids trap, via the inner annulus, into the tubing;
- and
- cleaning the solids out of the chamber in the solids trap using a dual concentric coil tubing with a packer.
Dependencies are inferred from the claim text.