Method and apparatus for a well vibrator tool

Abstract

A downhole vibration tool includes a head unit, a housing, a power system, a control system, at least one electrical motor, an engagement system, at least one vibration module, and at least one tractor section. The head unit is configured to attach to a conveyance system in a wellbore. The housing is configured to receive the cable head and house the power system, the control system, the at least one electrical motor, the engagement system, the vibration module and the at least one tractor section. The engagement system is configured to extend outward from the housing and contact the wellbore.

What is claimed is: 
     
         1 . A stuck object retrieval method comprising:
 conveying a downhole vibration tool to a point of interest in a wellbore;   deploying an engagement system to anchor the downhole vibration tool and determine a position and orientation of the downhole vibration tool relative to the wellbore;   activating the downhole vibration tool, having at least one vibration module, according to a configuration and iteratively and repetitively,
 measuring data using a sensor module, 
 determining a position and an orientation change of the downhole vibration tool relative to the wellbore, 
 adjusting an operational parameter of the vibration module, 
 vibrating the downhole vibration tool continuously or in pulses, 
 exerting a pulling or pushing force through a wireline or a tractor section until the stuck object is freed; and 
   retrieving the stuck object engaged with the downhole vibration tool.   
     
     
         2 . The stuck object retrieval method of  claim 1 , wherein the stuck object comprises a drill pipe. 
     
     
         3 . The stuck object retrieval method of  claim 1 , wherein the downhole vibration tool is conveyed downhole on the wireline. 
     
     
         4 . The stuck object retrieval method of  claim 1 , wherein the position of interest for deploying the engagement system is predetermined based, at least in part, on a depth at a sticking point and a distance between the sticking point and a free end of the stuck object. 
     
     
         5 . The stuck object retrieval method of  claim 1 , wherein a number of engagement points to be deployed is determined based, at least in part, on a configuration of the stuck object relative to the wellbore and a depth of a sticking point. 
     
     
         6 . The stuck object retrieval method of  claim 1 , wherein engaging the stuck object comprises attaching a fishing attachment to a leading tractor section configured to engage the stuck object. 
     
     
         7 . The stuck object retrieval method of  claim 1 , wherein an operational parameter of the vibration module comprises an operating frequency, an operating intensity, and a vibration orientation. 
     
     
         8 . A cementing method comprising:
 conveying a downhole vibration tool to a depth in a wellbore after placement of a cement; and   deploying an engagement system to anchor the downhole vibration tool to establish a mechanical connection between the downhole vibration tool and a cemented casing section and iteratively and repetitively,
 activating at least one vibration module; 
 measuring a sensor data using a sensor module, 
 adjusting an operational parameter of the vibration module, 
 vibrating the downhole vibration tool continuously or in pulses, 
 determining a cement job quality based, at least in part, on the sensor data; 
 moving the downhole vibration tool uphole; and 
 determining a job completeness based, at least in part, on a position of the downhole vibration tool in the wellbore relative to the cement. 
   
     
     
         9 . The cement assurance method of  claim 8 , wherein the downhole vibration tool is combined with a wiper tool. 
     
     
         10 . The cement assurance method of  claim 8 , wherein the downhole vibration tool is conveyed downhole on a wireline. 
     
     
         11 . The cement assurance method of  claim 8 , wherein the position of interest for deploying the engagement system is predetermined based, at least in part, on a depth to the cement plug. 
     
     
         12 . The cement assurance method of  claim 8 , wherein a number of vibrator modules to be deployed is based, at least in part, on a distance between the cement plug and the top of the cement job. 
     
     
         13 . The cement assurance method of  claim 8 , wherein an operational parameter of the vibration module comprises an operating frequency, an operating intensity, and a vibration orientation. 
     
     
         14 . The cement assurance method of  claim 8 , wherein at least one operational parameter of the vibration module is based, at least in part, on a characteristic of a cement slurry used for cementing the wellbore.