Annulus access valve
First Claim
1. A valve, comprising:
- a housing comprising a longitudinal opening extending through the housing to enable a fluid flow therethrough, an outer hole fluidly coupled to an annulus outside the housing, a control fluid port through a first end of the housing, and an inner passage outlet through a second end of the housing;
a chamber within the housing;
a sliding member to move within the chamber, the sliding member comprising a lower portion and an upper portion, the upper portion comprising at least one passage;
a spring device having a first end mechanically coupled to one end of the chamber and a second end mechanically coupled to the lower portion of the sliding member;
an inner passage fluidly coupled between the chamber and the inner passage outlet;
a control fluid inner passage fluidly coupled between the chamber and the control fluid port, the inner passage fluidly coupled to a gap area adjacent to a top surface of the sliding member;
wherein, in a closed position, the lower portion of the sliding member is between the outer hole and the inner passage and, in an open position, the at least one passage fluidly couples the outer hole to the inner passage; and
wherein the outer hole, the control fluid port, the inner passage outlet, the chamber, the inner passage, and the control fluid inner passage are fluidly isolated from the longitudinal opening.
1 Assignment
0 Petitions
Accused Products
Abstract
A valve includes a chamber within a housing. A sliding member is located within the chamber and configured to move within the chamber. The sliding member includes a lower portion and an upper portion wherein the upper portion includes a passage. A spring device couples the sliding member to one end of the chamber. An inner passage of the housing is coupled between the chamber and an inner passage outlet of the housing. A control fluid inner passage is coupled between the chamber and a control fluid port of the housing. The inner passage is coupled to a gap area adjacent to a top surface of the sliding member. In a closed position, the lower portion of the sliding member is between an outer housing hole and the inner passage. In an open position, the passage couples the outer housing hole to the inner passage.
22 Citations
19 Claims
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1. A valve, comprising:
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a housing comprising a longitudinal opening extending through the housing to enable a fluid flow therethrough, an outer hole fluidly coupled to an annulus outside the housing, a control fluid port through a first end of the housing, and an inner passage outlet through a second end of the housing; a chamber within the housing; a sliding member to move within the chamber, the sliding member comprising a lower portion and an upper portion, the upper portion comprising at least one passage; a spring device having a first end mechanically coupled to one end of the chamber and a second end mechanically coupled to the lower portion of the sliding member; an inner passage fluidly coupled between the chamber and the inner passage outlet; a control fluid inner passage fluidly coupled between the chamber and the control fluid port, the inner passage fluidly coupled to a gap area adjacent to a top surface of the sliding member; wherein, in a closed position, the lower portion of the sliding member is between the outer hole and the inner passage and, in an open position, the at least one passage fluidly couples the outer hole to the inner passage; and wherein the outer hole, the control fluid port, the inner passage outlet, the chamber, the inner passage, and the control fluid inner passage are fluidly isolated from the longitudinal opening. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for operation of a valve, the method comprising
providing a spring force to push a sliding member, in a chamber of a housing, into a closed position, the housing comprising a longitudinal opening extending through the housing to enable a fluid flow therethrough; -
injecting a control fluid through a first end of the housing into a control fluid port to increase a control fluid pressure in a gap area adjacent to a top surface of the sliding member; and increasing the control fluid pressure to a force greater than the spring force to move the sliding member to an open position, the open position comprising a passage in an upper portion of the sliding member fluidly coupling an outer hole of the housing with an inner passage within the housing, wherein an annulus fluid pressure is enabled to traverse the housing from the outer hole to an outlet of the inner passage in a second end of the housing, and wherein the chamber, the control fluid port, the inner passage, and the outlet of the inner passage are fluidly isolated from the longitudinal opening. - View Dependent Claims (11, 12, 13, 14)
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15. A system, comprising:
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a string to convey hydrocarbons from a hydrocarbon borehole; and a tubing hanger running tool adaptor housing coupled to the subsea string, the tool adaptor housing comprising a longitudinal opening extending through the housing to enable a fluid flow therethrough and an annulus access valve, the valve comprising; a chamber within the tool adaptor housing; a sliding member to move within the chamber, the sliding member comprising a lower portion and an upper portion, the upper portion comprising a plurality of passages; a spring having a first end mechanically coupled to one end of the chamber and a second end mechanically coupled to the lower portion of the sliding member; an inner passage fluidly coupled between the chamber and an inner passage outlet in a first end of the tool adaptor housing; a control fluid inner passage fluidly coupled between the chamber and a control fluid port in a second end of the tool adaptor housing, the inner passage fluidly coupled to a gap area adjacent to a top surface of the sliding member; wherein, in a closed position, the lower portion of the sliding member is between outer holes in the tool adaptor housing and the inner passage and, in an open position, each of the plurality of passages couples corresponding outer holes to the inner passage; and wherein the control fluid port, the inner passage outlet, the chamber, the inner passage, and the control fluid inner passage are fluidly isolated from the longitudinal opening. - View Dependent Claims (16, 17, 18, 19)
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Specification