Selective plug and method

Abstract

A selective plug including a body; and an incrementing configuration in operable communication with the body capable of causing the plug to selectively pass a number of borehole restrictions to reach and engage a target restriction and method.

1 . A selective plug comprising: a body; and
 an incrementing configuration in operable communication with the body capable of causing the plug to selectively pass a number of borehole restrictions to reach and engage a target restriction.   
     
     
         2 . The selective plug as claimed in  claim 1  wherein the incrementing configuration comprises a ratchet housing. 
     
     
         3 . The selective plug as claimed in  claim 1  wherein the ratchet housing includes a plurality of teeth. 
     
     
         4 . The selective plug as claimed in  claim 3  wherein one or more keys mounted at the body contact one or more of the plurality of teeth at least some of the time while the plug is in use. 
     
     
         5 . The selective plug as claimed in  claim 1  wherein the incrementing configuration increments each time the plug passes a restriction in a borehole while the plug is in use. 
     
     
         6 . The selective plug as claimed in  claim 1  wherein one or more keys mounted at the body are positioned to contact a restriction encountered by the plug and transmit a force of the contact to a ratchet housing to increment the ratchet housing within the body. 
     
     
         7 . The selective plug as claimed in  claim 6  wherein one or more of the one or more keys includes a lever responsive to key movement to transfer force to the ratchet housing. 
     
     
         8 . The selective plug as claimed in  claim 4  wherein the one or more keys are biased to an operable position. 
     
     
         9 . The selective plug as claimed in  claim 8  wherein the one or more keys are biased by a spring. 
     
     
         10 . The selective plug as claimed in  claim 9  wherein the spring is a torsion spring. 
     
     
         11 . The selective plug as claimed in  claim 1  wherein the incrementing configuration includes a biasing arrangement. 
     
     
         12 . The selective plug as claimed in  claim 11  wherein the biasing arrangement is a spring 
     
     
         13 . The selective plug as claimed in  claim 1  wherein the incrementing configuration further includes a dampener. 
     
     
         14 . The selective plug as claimed in  claim 13  wherein the dampener comprises a fluid chamber bifurcated by a piston having a flow orifice therethrough. 
     
     
         15 . The selective plug as claimed in  claim 14  wherein the piston further includes a check valve to reduce force necessary to move the piston through the chamber in one direction. 
     
     
         16 . The selective plug as claimed in  claim 1  wherein the incrementing configuration includes a selection indicator. 
     
     
         17 . The selective plug as claimed in  claim 1  wherein the body includes a seal member positioned to interact with a restriction in a borehole to create a pressure seal. 
     
     
         18 . The selective plug as claimed in  claim 6  wherein the one or more keys are offset relative to one another in the body. 
     
     
         19 . A method for conducting borehole operations comprising:
 determining where in a borehole an operation is desired;   setting a selective plug; and   deploying the selective plug into the borehole.