System for production of a hydrocarbonaceous fluid

Abstract

Embodiments of the disclosure pertain to a system for production of a hydrocarbonaceous fluid, the system having a tubing string deployed within a wellbore; a first pump system having a pump assembly operably engaged with a motor; and a control system operably engaged with the first pump system. The pump assembly includes a housing with a stator and rotor disposed therein. The first pump system is operable to aid in production of the hydrocarbonaceous fluid from the wellbore to a production facility.

What is claimed is: 
     
         1 . A system for production of a hydrocarbonaceous fluid, the system comprising:
 a tubing string deployed within a wellbore;   a first pump system comprising a pump assembly operably engaged with a motor, the pump assembly further comprising:
 a stator comprising an inner stator surface configured with an one or more stator vanes thereon; 
 a rotor comprising an external stator surface configured with an one or more rotor vanes thereon; 
 a housing having the stator and the rotor disposed therein; 
 wherein a radial gap is provided between the one or more stator vanes and the one or more rotor vanes along a length of the pump assembly, wherein a radial length of the one or more rotor vanes is greater than a radial length of the one or more stator vanes, wherein a thickness of the one or more stator vanes is greater than a thickness of the one or more rotor vanes, 
 wherein stator channels on the inner stator surface comprise a constant inner diameter, wherein rotor channels on the rotor outer surface comprise a constant outer diameter, and wherein the first pump system is in fluid communication with the tubing string; and 
   a control system operably engaged with the first pump system;   wherein the first pump system is operable to aid in production of the hydrocarbonaceous fluid from the wellbore to a production facility, the hydrocarbonaceous fluid having a viscosity of greater than 1,000 cP.   
     
     
         2 . The system of  claim 1 , wherein the first pump system further comprises a cooling shroud that depends from the pump assembly so as to define a flow path that requires the hydrocarbon fluid to pass over the motor before entering the pump assembly. 
     
     
         3 . The system of  claim 1 , wherein a protector seal module is located between the pump assembly and the motor. 
     
     
         4 . The system of  claim 1 , wherein the control system is operable to change a set of operating parameters of the pump assembly of so as to optimize the hydrocarbon fluid production from the wellbore, wherein an operating frequency is one of the set of operating parameters, and wherein the control system is operable to control a choke. 
     
     
         5 . The system of  claim 1 , the system further comprising a second pump system like that of the first pump system, the second pump system also in fluid communication with the tubing string. 
     
     
         6 . The system of  claim 1 , wherein the hydrocarbonaceous fluid has a viscosity of greater than 20,000 cP, and wherein the first pump system is located 75% to 95% of the way along a length of the wellbore. 
     
     
         7 . The system of  claim 1 , wherein rotor channels and stator channels are all of the same lengths and cross-sectional area. 
     
     
         8 . The system of  claim 1 , the pump assembly further comprising:
 an inlet;   an outlet;   two bearings separated along an longitudinal axis of the pump assembly, one of which being proximate to the inlet, and the other being proximate to the outlet.   
     
     
         9 . A system for production of a hydrocarbonaceous fluid, the system comprising:
 a tubing string deployed within a wellbore;   a first pump system comprising a pump assembly operably engaged with a motor, the pump assembly further comprising:
 a stator comprising an inner stator surface configured with an at least one stator vane thereon; 
 a rotor comprising an external stator surface configured with an one or more rotor vanes thereon; 
 a housing having the stator and the rotor disposed therein; 
 wherein a radial gap is provided between the one or more stator vanes and the one or more rotor vanes along a length of the pump assembly, wherein a radial length of the one or more rotor vanes is greater than a radial length of the one or more stator vanes, wherein a thickness of the one or more stator vanes is greater than a thickness of the one or more rotor vanes, 
 wherein stator channels on the inner stator surface comprise a constant inner diameter, wherein rotor channels on the rotor outer surface comprise a constant outer diameter, and wherein the first pump system is in fluid communication with the tubing string; and 
   a control system operably engaged with the first pump system;   wherein the first pump system is operable to aid in production of a hydrocarbonaceous fluid from the wellbore to a production facility, the hydrocarbonaceous fluid having a viscosity of greater than 1,000 cP.   
     
     
         10 . The system of  claim 9 , wherein the first pump system further comprises a cooling shroud that depends from the pump assembly so as to define a flow path that requires the hydrocarbon fluid to pass over the motor before entering the pump assembly. 
     
     
         11 . The system of  claim 10 , wherein a protector seal module is located between the pump assembly and the motor. 
     
     
         12 . The system of  claim 11 , wherein the control system is operable to change a set of operating parameters of the pump assembly of so as to optimize the hydrocarbon fluid production from the wellbore, wherein an operating frequency is one of the set of operating parameters, and wherein the control system is operable to control a choke. 
     
     
         13 . The system of  claim 12 , the system further comprising a second pump system like that of the first pump system, the second pump system also in fluid communication with the tubing string. 
     
     
         14 . The system of  claim 12 , wherein the hydrocarbonaceous fluid has a viscosity of greater than 20,000 cP, and wherein the first pump system is located 75% to 95% of the way along a length of the wellbore. 
     
     
         15 . The system of  claim 14 , wherein rotor channels and stator channels are all of the same lengths and cross-sectional area. 
     
     
         16 . The system of  claim 14 , the pump assembly further comprising:
 an inlet;   an outlet;   two bearings separated along an longitudinal axis of the pump assembly, one of which being proximate to the inlet, and the other being proximate to the outlet.