Automatic choking hydraulic shock reduction valve
AssigneeBaker Hughes Oilfield Operations LLC
InventorsAlexander McAuley, Thuc Ngoc Nguyen, Claudia Leon, Alexander Woodruff-Hall
Life of this patent
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Abstract
A valve for preventing hydraulic shock and water hammer in downstream equipment, the valve including a valve body with an internal oil dampening chamber, an orifice arranged within the oil dampening chamber, a flow dampener positioned between the valve inlet and the orifice, and a spring between the valve body and the orifice. The valve is pressure compensated based on the ambient fluid pressure.
Claims21
An automatic choking hydraulic shock reduction valve, the valve comprising:
- a valve body with an oil dampening chamber;
- an orifice within the oil dampening chamber;
- a flow dampener positioned between an inlet of the valve and the orifice;
- and
- a spring positioned between the valve body and the orifice;
- wherein the valve is pressure compensated for a depth pressure of an ambient fluid.
The valve of claim 4, wherein the upstream side of the oil dampening chamber and the downstream side of the oil dampening chamber are fluidly connected through a bi-directional flow control valve.
An oil dampening system, the system comprising:
- an upstream oil dampening chamber substantially filled with an oil;
- a downstream oil dampening chamber substantially filled with the oil;
- an orifice between the upstream oil dampening chamber and the downstream oil dampening chamber that is axially moveable through the system;
- an upstream port fluidly connected to the upstream oil dampening chamber;
- a downstream port fluidly connected to the downstream oil dampening chamber;
- and
- where the oil dampening system is pressure compensated for a depth pressure of an ambient fluid.
A method of manufacturing an automatic choking hydraulic shock reduction valve comprising:
- manufacturing an upstream valve body, a downstream valve body, an orifice, a flow dampener, and a spring;
- and
- assembling the valve such that the orifice is axially moveable between the upstream valve body and the downstream valve body and the spring exerts a force on the orifice away from the downstream valve body.
Dependencies are inferred from the claim text.