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A hydraulic sleeve valve that includes a valve position indication system that provides an indication that the valve has reached a predetermined position, such as, for example, the fully opened or fully closed condition. The hydraulic sleeve valve may include a bypass relief system and may also prov

A hydraulic sleeve valve that includes a valve position indication system that provides an indication that the valve has reached a predetermined position, such as, for example, the fully opened or fully closed condition. The hydraulic sleeve valve may include a bypass relief system and may also provide a valve control fluid circulation function to filter or otherwise manipulate the control fluid.

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What is claimed is: 1. A hydraulic valve assembly for use in a subterranean well comprising: a body portion including a flow port therethrough; a sleeve axially slidably disposed adjacent an inside surface of the body portion and forming a sealed pressure chamber there between, the sleeve comprisin

What is claimed is: 1. A hydraulic valve assembly for use in a subterranean well comprising: a body portion including a flow port therethrough; a sleeve axially slidably disposed adjacent an inside surface of the body portion and forming a sealed pressure chamber there between, the sleeve comprising a working surface disposed in the pressure chamber and separating the pressure chamber into a valve opening portion and a valve closing portion; a flow port through a portion of the sleeve such that when the body flow port and the sleeve flow port are aligned, the valve permits fluid communication from outside of the body to inside of the sleeve; and a fluid port formed through a wall of the body portion adapted to fluidly communicate between the pressure chamber and a valve position indication system when the sleeve is in a predetermined axial position. 2. The valve assembly of claim 1, wherein the fluid port is disposed near an end of the valve opening portion of the pressure chamber wherein the fluid port is exposed to the valve opening portion when the sleeve is in a substantially fully opened position. 3. The valve assembly of claim 2, wherein the fluid port is exposed to the valve opening portion just prior to the sleeve being in a substantially fully opened position. 4. The valve assembly of claim 1, wherein the fluid port is disposed near an end of the valve closing portion of the pressure chamber wherein the fluid port is exposed to the valve closing portion when the sleeve is in a substantially fully closed position. 5. The valve assembly of claim 4, wherein the fluid port is disposed near an end of the valve closing portion of the pressure chamber wherein the fluid port is exposed to the valve closing portion just prior to the sleeve being in a substantially fully closed position. 6. The valve assembly of claim 1, wherein the valve position indication system comprises a downhole pressure gage. 7. The valve assembly of claim 1, further comprising a bypass relief system coupled to the fluid port and adapted to fluidly communicate between the valve opening and closing portions of the pressure chamber when the sleeve is in a predetermined axial position. 8. The valve assembly of claim 7, wherein the bypass relief system comprises a one-way pressure relief valve disposed in a bypass conduit. 9. The valve assembly of claim 8, wherein the fluid port is disposed near an end of the valve opening portion of the pressure chamber wherein the fluid port is exposed to the valve opening portion when the sleeve is in a substantially fully opened position, an opening pressure port of the relief valve being in communication with the opening portion of the pressure chamber and a closing pressure port of the relief valve being in communication with the closing portion of the pressure chamber. 10. The valve assembly of claim 9, wherein the fluid port is exposed to the valve opening portion just prior to the sleeve being in a substantially fully opened position, an opening pressure port of the relief valve being in communication with the opening portion of the pressure chamber and a closing pressure port of the relief valve being in communication with the closing portion of the pressure chamber. 11. The valve assembly of claim 8, wherein the fluid port is disposed near an end of the valve closing portion of the pressure chamber wherein the fluid port is exposed to the valve closing portion when the sleeve is in a substantially fully closed position, a closing pressure port of the relief valve being in communication with the closing portion of the pressure chamber and an opening pressure port of the relief valve being in communication with the opening portion of the pressure chamber. 12. The valve assembly of claim 8, wherein the fluid port is exposed to the valve closing portion just prior to the sleeve being in a substantially fully closed position, a closing pressure port of the relief valve being in communication with the closing portion of the pressure chamber and an opening pressure port of the relief valve being in communication with the opening portion of the pressure chamber. 13. The valve assembly of claim 7, wherein the valve position indication system comprises a downhole pressure gage. 14. A hydraulic valve assembly for use in a subterranean well comprising: a body portion including a flow port therethrough; a sleeve axially slidably disposed adjacent an inside surface of the body portion and forming a sealed pressure chamber there between, the sleeve comprising a working surface disposed in the pressure chamber and separating the pressure chamber into a valve opening portion and a valve closing portion; a flow port through a portion of the sleeve such that when the body flow port and the sleeve flow port are aligned, the valve permits fluid communication from outside of the body to inside of the sleeve; and a fluid port formed through a wall of the body portion adapted to fluidly communicate between the opening pressure chamber and a valve position indication system when the sleeve is in a substantially fully opened position, and to fluidly communicate between the closing pressure chamber and a valve position indication system when the sleeve is in a substantially fully closed position. 15. The valve assembly of claim 14, wherein the valve position indication system comprises a downhole pressure gage. 16. The valve assembly of claim 14, further comprising a bypass relief system coupled to the fluid port and adapted to fluidly communicate between the valve opening and closing portions of the pressure chamber when the sleeve is in a predetermined axial position. 17. The valve assembly of claim 16, wherein the bypass relief system comprises at least one one-way pressure relief valve disposed in a bypass conduit. 18. The valve assembly of claim 14, wherein the bypass relief system comprises a first one-way relief valve coupled between the fluid port and the opening portion of the pressure chamber and a second one-way relief valve coupled between the fluid port and the closing portion of the pressure chamber.