System for a downhole string with a downhole valve
First Claim
1. A system for a downhole string, comprising:
- a fluid path defined by a bore formed within a tubular component;
a rotary valve located within a wall of the bore and which hydraulically connects the bore with a fluid passage;
the valve comprising a substantially disc shaped rotor comprising a plurality of channels evenly spaced around a circumference of the rotor;
the valve also comprising a substantially toroidal shaped stator disposed around the rotor and comprising a plurality of ports evenly spaced around a circumference of the stator; and
the rotor is configured to rotate such that the plurality of channels and the plurality of ports align and misalign to control a flow from the bore to the fluid passage.
2 Assignments
0 Petitions
Accused Products
Abstract
In one aspect of the present invention, a system for a downhole string comprises a fluid path defined by a bore formed within a tubular component. A reciprocating valve is located within a wall of the bore hydraulically connecting the bore with a fluid passage. The valve comprises a substantially cylindrical shaped housing. First and second ports are disposed on a circumference of the housing, and a fluid pathway is disposed intermediate the first and second ports. The valve comprises an axially slidable spool disposed within and coaxial with the housing and comprises a blocker. The blocker is configured to slide axially so to block and unblock the fluid pathway to control a flow from the bore to the fluid passage. The valve comprises a plurality of seals. Each seal is disposed opposite of the blocker causing pressure to be equally applied to the blocker and the plurality of seals.
62 Citations
20 Claims
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1. A system for a downhole string, comprising:
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a fluid path defined by a bore formed within a tubular component; a rotary valve located within a wall of the bore and which hydraulically connects the bore with a fluid passage; the valve comprising a substantially disc shaped rotor comprising a plurality of channels evenly spaced around a circumference of the rotor; the valve also comprising a substantially toroidal shaped stator disposed around the rotor and comprising a plurality of ports evenly spaced around a circumference of the stator; and the rotor is configured to rotate such that the plurality of channels and the plurality of ports align and misalign to control a flow from the bore to the fluid passage. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification