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US 2024/0183247 A1Published application
Float valve assembly
AssigneeForum US, Inc.
InventorsFrancis SANTOS, Sohaib ANWER
Life of this patent
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Abstract
Aspects of the present disclosure relate to float valve assemblies. The float valve assembly comprises a float sub, a first float valve having an outer housing, and a second float valve having an outer housing. The outer housings of the first and second float valves are coupled together and disposed within the float sub in a stacked configuration.
Claims20
A float valve assembly, comprising:
- a float sub;
- a first float valve having an outer housing;
- and
- a second float valve having an outer housing, wherein the outer housings of the first and second float valves are coupled together and disposed within the float sub in a stacked configuration.
1 more element
A drill string assembly, comprising:
- an upper drill string portion;
- a lower drill string portion;
- and
- a float valve assembly, comprising:
- a float sub;
- a first float valve having an outer housing;
- and
- a second float valve having an outer housing, wherein:
- the outer housings of the first and second float valves are coupled together and disposed within the float sub in a stacked configuration;
- and
- the float sub is disposed between the upper drill string portion and the lower drill string portion.
8 more elements
A method for drilling a wellbore comprising:
- lowering a drill string assembly to drill the wellbore, the drill string assembly comprising:
- an upper portion of a drill string;
- a lower portion of the drill string;
- and
- a float valve assembly, comprising:
- a float valve sub;
- a first float valve having an outer housing, wherein the first float valve is movable between an open position and a closed position;
- and
- a second float valve having an outer housing, wherein the second float valve is movable between an open position and a closed position, wherein the outer housings of the first and second float valves are coupled together and disposed within the float sub in a stacked configuration;
- and
- pumping fluid through the drill string assembly in a downhole direction while drilling the wellbore.
8 more elements
The method of claim 19, wherein:
- the fluid is pumped at a pressure that moves the first and second float valves into the open position to allow fluid flow in the downhole direction through the float valve assembly and the lower portion of the drill string.
The method of claim 20, wherein:
- at least one of the first and second float valves moves into the closed position to block fluid flow from the wellbore in an uphole direction through the float valve assembly.
Dependencies are inferred from the claim text.