US2015060046A1PendingUtilityA1

Tools and methods useful with wellbore reverse circulation

Assignee: SCHLUMBERGER TECHNOLOGY CORPPriority: Jun 6, 2006Filed: Nov 10, 2014Published: Mar 5, 2015
Est. expiryJun 6, 2026(expired)· nominal 20-yr term from priority
E21B 23/10E21B 10/64E21B 23/08E21B 31/18E21B 23/12
53
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Claims

Abstract

A method for reverse circulating a tool upwardly through a wellbore, the method including: providing a manipulator tool including an upper end and a lower end, conveying the manipulator tool down hole to a position adjacent a downhole tool, using the manipulator tool to manipulate a the downhole tool, and reversing fluid flow through the well to create a pressure differential about at least one of the manipulator tool and the downhole tool such that the at least one of the manipulator tool and the downhole tool is lifted upwardly through the wellbore. A manipulator tool for use in a reverse circulating method is also described as are a tool catcher, a tool catching assembly and a tool catching method.

Claims

exact text as granted — not AI-modified
1 .- 21 . (canceled) 
     
     
         22 . A tool catcher to catch a tool approaching the tool catcher, the tool including a fluid passage therein and a seal in the fluid passage, the tool catcher comprising:
 a body including a secured end and an outboard end;   engaging devices supported on the body, the engaging devices formed to act to resist passage therepast of a structure moving in a direction from the secured end towards the outboard end; and   a stinger at the outboard end to open the seal of in the fluid passage of the tool.   
     
     
         23 . The tool catcher of  claim 22  wherein the engaging devices include teeth angled towards the secured end. 
     
     
         24 . The tool catcher of  claim 22  wherein the engaging devices include engaging surfaces biased outwardly and collapsible to permit passage of a structure in a direction from outboard end to secured end. 
     
     
         25 . The tool catcher of  claim 22  wherein the engaging devices are positioned between the stinger and the secured end. 
     
     
         26 . The tool catcher of  claim 22  further comprising a shock absorber on the body. 
     
     
         27 . The tool catcher of  claim 22  further comprising a stop wall on the body between the secured end and the engaging devices. 
     
     
         28 .- 35 . (canceled)

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