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US 12,215,583 B2Granted
ESP blanking plug with sand trap
AssigneeSaudi Arabian Oil Company
InventorsHussain Al Majid, Jawad M. Al Khalifah, Alaa S. Shawly
Life of this patent
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Abstract
A blanking plug for isolating the wellbore of a fluid-producing well during operation of an electric submersible pump is provided with a sand trap positioned at the upper end of the plug. The sand trap is in the form of a mesh basket and includes a particulate accumulation chamber and a filter in a wall of the chamber.
Claims14
A blanking plug having an upper end and a downhole end comprising:
- a flow isolation mechanism at the downhole end of the blanking plug;
- at least one positioning structure for positioning the blanking plug in a tubing string of a well;
- at least one locking device for holding the blanking plug at a first working position in the tubing string;
- and
- a sand trap positioned at the upper end of the blanking plug, the sand trap comprising a particulate accumulation chamber and a filter in a wall of the chamber,
- wherein the blanking plug and the sand trap are configured to be run-in and retrieved from the well without being separated.
3 more elements
A system for producing fluids from a fluid-producing formation in the earth comprising:
- a wellbore extending from a well surface to the fluid-producing formation;
- a tubing string positioned in the wellbore;
- a Y-tool having upper and lower connections in fluid communication with the tubing string;
- a pump connected to the Y-tool for pumping fluid from the lower connection to the upper connection of the Y-tool;
- and
- the blanking plug having an upper end and a downhole end positioned in the tubing string between the upper and lower connections of the Y-tool, the blanking plug comprising a sand trap positioned at its upper end, the sand trap comprising a particulate accumulation chamber and a filter in a wall of the chamber,
- wherein the blanking plug and the sand trap are configured to be run-in and retrieved from the well without being separated.
4 more elements
A method of producing fluids from a fluid-producing formation in the earth, comprising the steps:
- drilling a wellbore from a surface to the fluid-producing formation;
- installing a casing in the wellbore;
- installing a production tubing string in the wellbore, providing an annular space between the casing and the tubing string;
- providing a Y-tool in the annular space and having upper and lower connections in fluid communication with the tubing string;
- installing a pump in the Y-tool for pumping fluid from the lower connection to the upper connection of the Y-tool;
- providing a blanking plug having an upper end and a downhole end, the blanking plug comprising a sand trap positioned at its upper end, the sand trap comprising a particulate accumulation chamber and a filter in a wall of the chamber;
- running the blanking plug and the sand trap down the tubing string to a first working position determined by at least one positioning structure on the blanking plug between the upper and lower connections of the Y-tool;
- pumping fluid containing particulates from the formation to the surface via the Y-tool;
- after a period of accumulation of particulates in the sand trap, retrieving and withdrawing the blanking plug from the tubing string;
- disposing of the accumulated particulates contained in the sand trap without separating the blanking plug and the sand trap;
- again running the blanking plug and the sand trap down the tubing string to the first working position;
- and
- resuming pumping fluid containing particulates from the formation to the surface via the Y-tool.
10 more elements
Dependencies are inferred from the claim text.