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US 2009/0211753 A1Published application
System and method for removing liquid from a gas well
AssigneeSchlumberger Technology Corporation
InventorsBahman Emtiazian, Thomas Cairney
Life of this patent
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Abstract
A technique is employed to remove liquid from a gas well to improve gas production from the well. An electric submersible pumping system is deployed into the wellbore and positioned to remove accumulated liquid. The electric submersible pumping system is constructed and controlled to maintain a flow of liquid during operation of the pumping system.
Claims23
A method of gas well deliquification, comprising:
- enclosing an electric submersible pumping system with a shroud;
- connecting a tail pipe to a lower end of the shroud;
- conveying the electric submersible pumping system into a gas well via a tubing until the tail pipe enters a region susceptible to liquid accumulation;
- operating the electric submersible pumping system to pump liquid from the region and up through the tubing;
- and
- producing gas along an annulus formed around the shroud and the tubing.
3 more elements
A method, comprising:
- determining accumulation of a liquid in a gas well;
- and
- utilizing an electric submersible pumping system to pump a sufficient amount of the liquid from the gas well to improve gas production from the gas well.
A system for use in gas well deliquification, comprising:
- an electric submersible pumping system deployed in a gas well;
- a shroud positioned around the electric submersible pumping system, the shroud having an inlet located to receive liquid from a liquid accumulation region of the gas well;
- a tubing by which the electric submersible pumping system is deployed in the gas well, the tubing defining a liquid flow path and a gas flow path;
- a production packer located above the electric submersible pumping system;
- and
- a mechanism to enable gas flow past the production packer.
3 more elements
Dependencies are inferred from the claim text.