US2007102151A1PendingUtilityA1

Helical rod guide and method

32
Individually held — no corporate assignee on recordPriority: Nov 9, 2005Filed: Nov 9, 2005Published: May 10, 2007
Est. expiryNov 9, 2025(expired)· nominal 20-yr term from priority
Inventors:Gary E. Abdo
E21B 17/22E21B 17/1071
32
PatentIndex Score
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Cited by
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References
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Claims

Abstract

A rod guide 10 for positioning on a sucker rod includes a sleeve-shaped guide body 12 and two or more spiraling vanes 14, 16 each extending radially outward from the sleeve-shaped body, with each vane spiraling about the body and defining a flow path between circumferentially spaced vanes. Each vane has a forward portion 24 spiraling in a forward direction, and a backward portion 26 spiraling in a backward direction rotatably opposite the forward direction. The rod guide may be used for either reciprocating rod or rotating rod applications.

Claims

exact text as granted — not AI-modified
1 . A rod guide for positioning on a sucker rod, comprising: 
 a sleeve-shaped guide body for positioning about the sucker rod;    two or more vanes each extending radially outward from the sleeve-shaped guide body, each vane spiraling about the guide body and defining a flow path between circumferentially spaced vanes; and    each vane having a forward portion spiraling in a forward direction, and a backward portion spiraling in a backward direction rotatably opposite the forward direction.    
   
   
       2 . A rod guide as defined in  claim 1 , wherein the forward -and backward portions of each vane meet to form an axially elongate and continuous vane.  
   
   
       3 . A rod guide as defined in  claim 1 , wherein the forward and backward portions of each vane meet adjacent a middle region of the guide body.  
   
   
       4 . A rod guide as defined in  claim 3 , wherein the forward and backward portions of each vane meet at substantially an axial center of the sleeve-shaped guide body.  
   
   
       5 . A rod guide as defined in  claim 1 , wherein an end of each vane is tapered radially inward toward the sleeve-shaped guide body.  
   
   
       6 . A rod guide as defined in  claim 1 , wherein each vane extends circumferentially about the guide body from 130° to 220°.  
   
   
       7 . A rod guide as defined in  claim 1 , further comprising: 
 a rounded transition region between the forward directed portion and the backward directed portion of each vane.    
   
   
       8 . A rod guide as defined in  claim 1 , wherein the rod guide is fabricated from plastic.  
   
   
       9 . A rod guide as defined in  claim 1 , wherein the rod guide is molded onto the sucker rod.  
   
   
       10 . A rod guide as defined in  claim 1 , wherein each vane has a circumferential width of from 30 to 60°.  
   
   
       11 . A rod guide as defined in  claim 1 , wherein each of a left side, a right side, and a radially exterior surfaces of each vane form a substantially curved planar surface.  
   
   
       12 . A rod guide for positioning on a sucker rod, comprising: 
 a plastic material sleeve-shaped guide body for positioning about the sucker rod;    one or more plastic material vanes extending radially outward from the sleeve-shaped guide body, each vane spiraling about the body and defining a flow path between circumferentially spaced from the one or more vanes; and    each vane having a forward portion spiraling in a forward direction, and a backward portion spiraling in a backward direction rotatably opposite the forward direction,    the forward and backward portions meeting to form an axially elongate and continuous vane.    
   
   
       13 . A rod guide as defined in  claim 12 , wherein the forward and backward portions of each vane meet adjacent a middle region of the guide body.  
   
   
       14 . A rod guide as defined in  claim 12 , wherein an end of each vane is tapered radially inward toward the guide body.  
   
   
       15 . A rod guide as defined in  claim 12 , wherein the rod guide is molded onto the sucker rod.  
   
   
       16 . A rod guide as defined in  claim 12 , wherein the sucker rod is reciprocated within a tubing string, such that a radially exterior surface of each vane slides along an interior surface of the tubing string.  
   
   
       17 . A rod guide as defined in  claim 12 , wherein the sucker rod is rotated within a tubing string, such that a radial external surface of each vane rotatably engages an interior surface of the tubing string.  
   
   
       18 . A rod guide for positioning on a sucker rod, comprising: 
 a sleeve-shaped guide body for positioning about the sucker rod;    two or more plastic material vanes each extending radially outward from the sleeve-shaped guide body, each vane spiraling about the guide body and defining a flow path between circumferentially spaced vanes;    each vane having a forward portion spiraling in a forward direction, and a backward portion spiraling in a backward direction rotatably opposite the forward direction; and    wherein each vane extends circumferentially about the guide body from 130° to 220°.    
   
   
       19 . A rod guide as defined in  claim 18 , wherein each vane has a circumferential width of from 30 to 60°.  
   
   
       20 . A rod guide as defined in  claim 18 , further comprising: 
 a rounded transition region between the forward directed portion and the backward directed portion of each vane.

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