Shortened Tubing Baffle with Large Sealable Bore

Abstract

Devices for controlling the flow of fluids past a location in a wellbore and methods for using such devices are disclosed. Embodiment devices are configured such that the throughbore is maximized because of the devices' thin cross sectional length. Embodiment devices may be optimized to expand into larger casing sizes by use of a multi-part cone system while maintaining the thin cross section. Embodiment devices may also permit the plug to be communicated into the well with the flow control devices, reducing the fluid volume required to treat well stages separated by the disclosed embodiment devices.

1 . A downhole tool having a run-in state and a set state, the downhole tool comprising:
 A mandrel having in interior surface defining a passage therethrough and an exterior surface;
 a plug seat; 
 a first setting ring; and 
 an element, a cone having a first angular surface and a second angular surface, a cone extension and at least one slip positioned below the first setting ring and around the mandrel; 
   wherein
 in the set state, the at least one slip engages the cone extension; and 
 engagement of a plug on the plug seat prevents fluid communication through the passage. 
   
     
     
         2 . The downhole tool of  claim 1  wherein a single piece comprises the plug seat and the first setting ring. 
     
     
         3 . The downhole tool of  claim 1  wherein the cone extension engages the first angular surface and the at least one slip engages the second angular surface. 
     
     
         4 . The downhole tool of  claim 1  wherein, in the run-in state, the cone extension and the at least one slip are positioned on opposing sides of the cone. 
     
     
         5 . The downhole tool of  claim 1  further comprising a second setting ring, wherein the downhole tool is changeable from the run-in state to the set state by movement of the first setting ring toward the second setting ring. 
     
     
         6 . The downhole tool of  claim 5  having a run-in state and a set state, wherein the second setting ring telescopes over at least a portion of the mandrel. 
     
     
         7 . The downhole tool of  claim 1  wherein, in the set state, at least a portion of the cone extension is between a portion of the at least one slip and the first angular surface. 
     
     
         8 . The downhole tool of  claim 1  comprising a connection between the plug seat and the setting ring that is at least partially in fluid isolation from the exterior of the tool. 
     
     
         9 . The downhole tool of  claim 1  comprising a connection between the plug seat and the setting ring that is substantially in fluid isolation from the exterior of the tool. 
     
     
         10 . The downhole tool of  claim 1  wherein, in the set state, the at least one slip engages the cone extension radially outwardly of the outer diameter of the cone. 
     
     
         11 . A tubing baffle having a run-in state and a set state, the tubing baffle comprising:
 A mandrel having in interior surface defining a passage therethrough and an exterior surface;
 a plug seat; 
 a first setting ring and a bottom section; 
 an element, and at least one slip positioned below the setting ring and around the mandrel; and 
 a plug; 
   wherein
 the plug is configured to engage the plug seat to prevent fluid communication through the mandrel passage; 
 the plug is engaged with the tubing baffle in the run-in state and in the set state. 
   
     
     
         12 . The tubing baffle of  claim 11  having an adaptor kit extension comprising the plug, the adaptor kit extension communicating force to the frac baffle to move the first setting and bottom section toward one another when the frac baffle changes from the run-in state to the set state. 
     
     
         13 . The tubing baffle of  claim 12  wherein the adaptor kit extension may function as a check valve in the mandrel passage. 
     
     
         14 . The tubing baffle of  claim 11  wherein the plug comprises material that degrades substantially faster than the mandrel. 
     
     
         15 . The tubing baffle of  claim 12  wherein at least one component of the adaptor kit extension is degradable in aqueous fluids. 
     
     
         16 . The tubing baffle of  claim 12  wherein the adaptor kit extension engages the bottom section when the tubing baffle moves from the run-in state to the set state. 
     
     
         17 . A method for installing a flow control device into a well, the method comprising:
 connecting the flow control device to a wireline string, the flow control device comprising a mandrel with an element therearound, a plug seat, a plug in communication with the plug seat, an upper setting ring, a slip, and a bottom section;   placing the flow control device into a well;   conveying the flow control device to a desired location in the well;   moving the upper setting ring and the bottom section toward one another;   expanding the slip radially outward to engage a casing in the well;   releasing the flow control device from the wireline string; and   removing the wireline string from the well.   
     
     
         18 . The method of  claim 17 , the flow control device further comprising a check valve, the check valve preventing fluid flow through the downhole tool when fluid pressure adjacent to the plug seat is greater than fluid pressure adjacent to the bottom section and the conveying step comprises engaging the check valve to prevent fluid communication through a throughbore of the flow control device. 
     
     
         19 . The method of  claim 17 , the flow control device further having an adaptor kit extension comprising the plug, wherein the moving step comprises transferring force from the wireline string to the flow control device through the adaptor kit extension. 
     
     
         20 . The method of the  claim 17  wherein the plug comprises material that degrades substantially more quickly than the mandrel. 
     
     
         21 - 28 . (canceled)