Gravel pack inner string adjustment device

A device for an inner string deploying in a downhole assembly, the downhole assembly disposed in a borehole and having at least one first port for fluid communication out of the downhole assembly, the inner string deploying in the downhole assembly and having at least one second port for fluid communication out the inner string, the device comprising:

• a first member coupled to one portion of the inner string;
• a second member telescopically coupled to the first member and coupled to another portion of the inner string;
• at least one ratchet disposed on the first member;
• and
• at least one catch disposed on the second member and movable relative to the at least one ratchet,
• wherein the at least one ratchet allows the second member to move in one direction relative to the first member,
• wherein the at least one ratchet engages in the at least one catch and prevents the second member from moving in an opposite direction relative to the first member, and
• wherein the first and second members adjust a length of the inner string and space out the at least one second port of the inner string a known distance for positioning relative to the at least one first port of the downhole assembly.

A device for an inner string deploying in a downhole assembly, the downhole assembly disposed in a borehole and having at least one first port for fluid communication out of the downhole assembly, the inner string deploying in the downhole assembly and having at least one second port for fluid communication out the inner string, the device comprising:

• a first member coupled to one portion of the inner string;
• a second member telescopically coupled to the first member and coupled to another portion of the inner string;
• and
• means for adjusting a length of the inner string while downhole comprising:
• means for collapsing the second member relative to the first member to one of a plurality of fixed lengths,
• means for ratcheting movement of the first member in one direction relative to the second member,
• means for preventing movement of the second member in an opposite direction relative to the first member, and
• means for spacing out the at least one second port a known distance for positioning relative to the at least one first port.