US2012138312A1PendingUtilityA1

Methods for Retrieving A Dipper Assembly

Assignee: STRONG GEORGE THOMASPriority: Nov 4, 2009Filed: May 15, 2011Published: Jun 7, 2012
Est. expiryNov 4, 2029(~3.3 yrs left)· nominal 20-yr term from priority
E21B 27/00E21B 33/072E21B 49/082E21B 47/047E21B 43/16
22
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Claims

Abstract

A stripper device for a wellhead defining the terminus of an aliphatic hydrocarbon production well. The stripper device includes a lubricator assembly having a lubricator pipe in communication with the wellhead and a dipper assembly traversing within the lubricator pipe and the well. A controller assembly provides instructions in a computer readable format to regulate the collection of liquid aliphatic hydrocarbons from the well with the dipper assembly. The stripper device includes a recovery assembly having a pivot element coupled to a lubricator pipe and to the wellhead. The pivot element renders the lubricator pipe to communicate with the wellhead in a first position and renders the lubricator pipe apart from the wellhead in a second position to expose the wellhead free of obstructions including those from the lubricator assembly.

Claims

exact text as granted — not AI-modified
1 . A method for retrieving a dipper assembly from within an aliphatic hydrocarbon wellbore, the method comprising the steps of:
 pivoting a lubricator pipe away from the wellbore via a pivot element,
 the pivot element coupled to the lubricator pipe and to a wellhead defined by the aliphatic hydrocarbon well at a terminus of the wellbore; 
   stabilizing the lubricator pipe in an access position;   drawing the dipper assembly from within the well to the wellhead; and   removing the dipper assembly away from the wellhead.   
     
     
         2 . The method according to  claim 1  further comprising the step of removing fasteners from the pivot element. 
     
     
         3 . The method according to  claim 1  wherein the step of drawing the dipper assembly from within the well to the wellhead includes the step of drawing the dipper assembly using wireline. 
     
     
         4 . The method according to  claim 1  wherein the step of drawing the dipper assembly from within the well to the wellhead includes the step of drawing the dipper assembly using at least one retrieval tool. 
     
     
         5 . The method according to  claim 1  wherein the step of stabilizing the lubricator pipe further includes the step of resting an alignment stopper that is coupled to the lubricator pipe against the stripper device while rendered in the access position. 
     
     
         6 . The method according to  claim 1  wherein the step of stabilizing the lubricator pipe further includes the step of adjusting an alignment stopper to provide a desired angle for the lubricator pipe to rest while in the access position. 
     
     
         7 . A method for retrieving a dipper assembly from within an aliphatic hydrocarbon well, the terminus of an aliphatic hydrocarbon well defining a wellhead, the aliphatic hydrocarbon well includes a wellbore, the method comprising the steps of:
 securing a stripper device to the wellhead,
 the stripper device providing a lubricator assembly having a lubricator pipe, the dipper assembly traverses within the lubricator pipe and the well, a wireline and a fishing neck coupled to the wireline, the fishing neck coupled to the dipper assembly; 
   moving the lubricator pipe away from the wellbore;   drawing the dipper assembly from within the well to the wellhead; and   removing the dipper assembly away from the wellhead.   
     
     
         8 . The method according to  claim 7  wherein the step of stabilizing the lubricator pipe further includes the step of adjusting the angle of inclination of the lubricator assembly with respect to the stripper device while rendered in the access position. 
     
     
         9 . The method according to  claim 7  wherein the step of drawing the dipper assembly from within the well to the wellhead includes the step of drawing the dipper assembly using wireline. 
     
     
         10 . The method according to  claim 7  wherein the step of drawing the dipper assembly from within the well to the wellhead includes the step of drawing the dipper assembly using at least one retrieval tool. 
     
     
         11 . The method according to  claim 10  wherein the step of drawing the dipper assembly using at least one retrieval tool includes the step of coupling the retrieval tool to at least one tapered latch that is provided by the dipper assembly. 
     
     
         12 . The method according to  claim 10  wherein the step of drawing the dipper assembly using at least one retrieval tool includes the step of coupling the retrieval tool to at least one retrieval neck that is provided by the dipper assembly. 
     
     
         13 . The method according to  claim 7  further comprising the step of removing the fishing neck from the dipper assembly and coupling another fishing neck to the dipper assembly. 
     
     
         14 . The method according to  claim 13  wherein the fishing neck assembly is substituted for either another fishing neck assembly or retrieval tool of a different size or performance capacity. 
     
     
         15 . A method for retrieving a dipper assembly from within an aliphatic hydrocarbon well, the terminus of an aliphatic hydrocarbon well defining a wellhead, the aliphatic hydrocarbon well including a wellbore, the method comprising the steps of:
 securing a stripper device to the wellhead,
 the stripper device providing a lubricator assembly having a lubricator pipe, the dipper assembly traverses within the lubricator pipe and the well, a wireline and a fishing neck coupled to the wireline, the fishing neck coupled to the dipper assembly; 
   moving the lubricator pipe away from the stripper device;   drawing the dipper assembly from within the well to the wellhead; and   removing the dipper assembly away from the wellhead.   
     
     
         16 . The method according to  claim 15  further comprising the step of moving the lubricator pipe away from the wellhead. 
     
     
         17 . The method according to  claim 15  wherein the step of drawing the dipper assembly from within the well to the wellhead includes the step of drawing the dipper assembly using wireline. 
     
     
         18 . The method according to  claim 15  wherein the step of drawing the dipper assembly from within the well to the wellhead includes the step of drawing the dipper assembly using at least one retrieval tool. 
     
     
         19 . The method according to  claim 18  wherein the step of drawing the dipper assembly using at least one retrieval tool includes the step of coupling the retrieval tool to at least one tapered latch that is provided by the dipper assembly. 
     
     
         20 . The method according to  claim 18  wherein the step of drawing the dipper assembly using at least one retrieval tool includes the step of coupling the retrieval tool to at least one retrieval neck that is provided by the dipper assembly.

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