US2006054315A1PendingUtilityA1

Coiled tubing vibration systems and methods

34
Individually held — no corporate assignee on recordPriority: Sep 10, 2004Filed: Sep 10, 2004Published: Mar 16, 2006
Est. expirySep 10, 2024(expired)· nominal 20-yr term from priority
Inventors:Kenneth Newman
E21B 28/00E21B 19/22
34
PatentIndex Score
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Claims

Abstract

Systems and methods for vibrating coiled tubing as it is moved in an earth wellbore.

Claims

exact text as granted — not AI-modified
1 . A method for emplacing coiled tubing in a wellbore, the method comprising 
 moving coiled tubing in a wellbore in the earth, the wellbore extending from the earth surface down into the earth, and    vibrating the coiled tubing with vibrating apparatus at the surface as the coiled tubing is moved in the wellbore to reduce friction between the coiled tubing and the wellbore.    
   
   
       2 . The method of  claim 1  wherein the coiled tubing is injected into the wellbore with an injector system, the injector system including vibrating apparatus for vibrating the injector system to thereby vibrate the coiled tubing, the method further comprising 
 injecting the coiled tubing in the wellbore with the injector system, and    vibrating the injector system with the vibrating apparatus to vibrate the coiled tubing.    
   
   
       3 . The method of  claim 2  wherein the injector system includes a drive section for moving the coiled tubing through the injector system and the vibrating apparatus vibrates the drive section vertically, the method further comprising 
 driving the coiled tubing with the drive section to move the coiled tubing in the wellbore, and    vibrating the drive section vertically to vibrate the coiled tubing.    
   
   
       4 . The method of  claim 2  wherein the injector system includes a drive section for moving the coiled tubing through the injector and the vibrating apparatus vibrates the drive section vertically, the method further comprising 
 driving the coiled tubing with the drive section to move the coiled tubing in the wellbore, and    vibrating the drive section vertically to vibrate the coiled tubing.    
   
   
       5 . The method of  claim 2  wherein the injector system includes a drive section for moving the coiled tubing through the injector and the vibrating apparatus rotates the drive section to vibrate the drive section, the method further comprising 
 driving the coiled tubing with the drive section to move the coiled tubing in the wellbore, and    rotating the drive section to vibrate the coiled tubing.    
   
   
       6 . The method of  claim 2  wherein the injector system is a contra-rotating chain injector system.  
   
   
       7 . The method of  claim 2  wherein the injector system is a driven roller injector system.  
   
   
       8 . The method of  claim 1  wherein a stack is positioned at the surface of the earth and the coiled tubing is movable through the stack, the stack including stack vibrating apparatus for vibrating the coiled tubing, the method further comprising 
 moving the coiled tubing through the stack, and    vibrating the coiled tubing with the stack vibrating apparatus.    
   
   
       9 . The method of  claim 7  wherein the stack vibrating apparatus includes hydraulic piston/cylinder apparatus for vibrating the coiled tubing.  
   
   
       10 . The method of  claim 1  wherein movement apparatus is provided for moving the coiled tubing in the wellbore, and hydraulic power apparatus is connected to the movement apparatus, the method further comprising 
 providing with the hydraulic power apparatus power in pulses to vibrate the coiled tubing.    
   
   
       11 . The method of  claim 1  further comprising vibrating the coiled tubing with vibrating apparatus within the wellbore.  
   
   
       12 . A system for moving coiled tubing in a wellbore, the wellbore extending from an earth surface down into the earth, the system comprising 
 movement apparatus for moving the coiled tubing into the wellbore, and    vibration apparatus at the surface for vibrating the coiled tubing.    
   
   
       13 . The system of  claim 12  wherein 
 the movement apparatus includes an injector system for injecting the coiled tubing into the wellbore,    the injector system including vibrating apparatus for vibrating the injector system to thereby vibrate the coiled tubing.    
   
   
       14 . The system of  claim 13  wherein the injector system includes a drive section for moving the coiled tubing through the injector and the vibrating apparatus vibrates the drive section vertically.  
   
   
       15 . The system of  claim 13  wherein the injector system includes a drive section for moving the coiled tubing through the injector and the vibrating apparatus rotates the drive section to vibrate the coiled tubing.  
   
   
       16 . The system of  claim 13  wherein the injector system is a contra-rotating chain injector system.  
   
   
       17 . The system of  claim 13  wherein the injector system is driven roller injector system.  
   
   
       18 . The system of  claim 12  further comprising 
 a stack at the surface through which the coiled tubing is movable, and    the stack including stack vibrating apparatus for vibrating the coiled tubing.    
   
   
       19 . The system of  claim 12  further comprising 
 hydraulic power apparatus connected to the movement apparatus, the hydraulic power apparatus for providing pulses of power to vibrate the coiled tubing.    
   
   
       20 . The system of  claim 12  further comprising wellbore vibrating apparatus within the wellbore for vibrating the coiled tubing.  
   
   
       21 . A method for controlling weight-on-bit on a bottom hole assembly of a wellbore drilling system drilling a wellbore, the wellbore drilling system using a bottom hole assembly and bit on a coiled tubing string for drilling, the wellbore extending from an earth surface down into the earth, the method comprising 
 reducing friction between the coiled tubing string and the wellbore by vibrating the coiled tubing string with a vibratory system, thereby promoting free movement of the coiled tubing string through the wellbore during drilling,    the vibratory system comprising a movement apparatus for moving the coiled tubing string in the wellbore, and vibration apparatus at the surface for vibrating the coiled tubing.    
   
   
       22 . The method of  claim 21  wherein said vibrating promotes movement of the bit and of the bottom hole assembly through the wellbore during drilling

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