US2018112484A1PendingUtilityA1

Wellhead based well control arrangement for upper plug and abandonment operations and method

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Assignee: BUSSEAR TERRYPriority: Oct 21, 2016Filed: Oct 21, 2016Published: Apr 26, 2018
Est. expiryOct 21, 2036(~10.3 yrs left)· nominal 20-yr term from priority
Inventors:Terry R. BussearLars Bay
E21B 33/03E21B 33/12
36
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Claims

Abstract

A wellhead based well control arrangement including a pressure control head having a gripping element configured to grip an outside surface of a well head and a seal element configured to seal against an inside surface of the same well head, a perforating, packer, and circulation mandrel extending from the pressure control head. A method for controlling a well at a well head for plugging and abandonment operations including running an arrangement as above into engagement with a well head, engaging the gripping element to an outside surface of the wellhead, sealing the seal element to an inside surface of the well head, and setting a packer of the mandrel.

Claims

exact text as granted — not AI-modified
What is claimed is: 
     
         1 . A wellhead based well control arrangement comprising:
 a pressure control head having a gripping element configured to grip an outside surface of a well head and a seal element configured to seal against an inside surface of the same well head;   a perforating, packer, and circulation mandrel extending from the pressure control head.   
     
     
         2 . The arrangement as claimed in  claim 1  wherein the gripping element is a ring. 
     
     
         3 . The arrangement as claimed in  claim 1  wherein the gripping element is a plurality of gripping elements. 
     
     
         4 . The arrangement as claimed in  claim 1  wherein the seal element is an annular compression-type seal. 
     
     
         5 . The arrangement as claimed in  claim 1  wherein the seal element is a plurality of elements. 
     
     
         6 . The arrangement as claimed in  claim 1  wherein a packer of the mandrel is inflatable. 
     
     
         7 . The arrangement as claimed in  claim 1  wherein a packer of the mandrel is noninflatable. 
     
     
         8 . The arrangement as claimed in  claim 1  wherein the pressure control head and mandrel further include a circulation line running therethrough. 
     
     
         9 . The arrangement as claimed in  claim 1  wherein the pressure control head and mandrel further include a return line running therethrough. 
     
     
         10 . A method for controlling a well at a well head for plugging and abandonment operations comprising:
 running an arrangement as claimed in  claim 1  into engagement with a wellhead;   engaging the gripping element to an outside surface of the wellhead;   sealing the seal element to an inside surface of the wellhead;   setting a packer of the mandrel.   
     
     
         11 . The method as claimed in  claim 10  wherein the engaging the gripping element is with a groove on an outside surface of the well head. 
     
     
         12 . The method as claimed in  claim 10  wherein the engaging the gripping element is with an H4 connection.

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