Electrical submersible pump (esp) string and esp orientation system

Abstract

A system for orienting and positioning a downhole ESP string in a deviated well includes a downhole ESP string, an accelerometer, and a data acquisition system. The string includes an intake port. The accelerometer is coupled to the string and measures the orientation of the intake port and the orientation of the string with respect to the vertical. The data acquisition system receives the orientation data, determines an offset value, and causes an adjustment in the orientation of the section. The string is oriented so that the intake port is on the bottom of the string facing towards the floor of the well and the intake port is positioned within the well where a deviation from a vertical path to a horizontal path takes place.

What is claimed is: 
     
         1 . A system for orienting and positioning a downhole ESP string in a well, the system comprising:
 a downhole electric submersible pump string having a section with at least one of an intake port and a discharge port positioned in the well;   an accelerometer coupled to the section of the string that measures an orientation of the at least one of the intake port and the discharge port and sends port orientation data; and   a data acquisition system that receives the port orientation data and causes an adjustment in the orientation of the section.   
     
     
         2 . The system of  claim 1 , wherein the position of the coupled accelerometer is aligned with a position of at least one of the intake and the discharge port. 
     
     
         3 . The system of  claim 1 , wherein the section is oriented so that the intake port is facing towards the floor of the well. 
     
     
         4 . The system of  claim 1 , wherein the section is oriented so that the intake port is on the bottom of the string and the discharge port is on the top of the string facing towards the ceiling of the well. 
     
     
         5 . The system of  claim 1 , wherein the data acquisition system further:
 determines an offset value based on the measuring; and   sends the offset value to a well operations center.   
     
     
         6 . The system of  claim 1 , wherein data acquisition system further:
 determines an offset value based on the measuring;   compares the offset value with a desired orientation value; and   sends the offset value to the well operations center if the offset value exceeds the at desired orientation value by a predetermined threshold.   
     
     
         7 . The system of  claim 1 , wherein the data acquisition system measures the output from the accelerometer with any combination of x, y, and z axes and determines an angle of degree of tilt relative to a vertical alignment of static 1G of the string during install and rest. 
     
     
         8 . The system of  claim 7 , wherein the data acquisition system causes the string to be oriented so that the intake port is facing a bottom surface of the well, wherein the well runs lengthwise in a horizontal direction. 
     
     
         9 . The system of  claim 1 , wherein the data acquisition system causes the string to be placed in the well so that the intake port at a place in the well where the deviation from vertical to horizontal takes place. 
     
     
         10 . A method for orienting and positioning a downhole ESP string in a well, the method comprising:
 positioning a downhole electric submersible pump string having a section with at least one of an intake port and a discharge port in the well;   measuring, using an accelerometer coupled to the section of the string, the orientation of the at least one of the intake port and the discharge port and sending port orientation data; and   receiving, using a data acquisition system, the port orientation data and causing an adjustment in the orientation of the section.   
     
     
         11 . The method of  claim 10 , wherein the position of the coupled accelerometer is aligned with the position of at least one of the intake and the discharge port. 
     
     
         12 . The method of  claim 10 , further comprising orienting the section so that the intake port is on the bottom of the string facing towards the floor of the well. 
     
     
         13 . The method of  claim 10 , further comprising orienting the section so that the intake port is on the bottom of the string and the discharge port is on the top of the string facing towards the ceiling of the well. 
     
     
         14 . The method of  claim 10 , further comprising:
 determines an offset value based on the measuring; and   sends the offset value to a well operations center.   
     
     
         15 . The method of  claim 10  further comprising:
 determining an offset value based on the measuring; 
 comparing the offset value with a desired orientation value; and 
 sending the offset value to the well operations center if the offset value exceeds the desired orientation value by a predetermined threshold. 
 
     
     
         16 . The method of  claim 10 , further comprising measuring, at the data acquisition system, the output from the accelerometer with any combination of x, y, and z axis and determining the angle of degree of tilt relative to a vertical alignment of static 1G of the string during install and rest. 
     
     
         17 . The method of  claim 16 , further comprising causing, by the data acquisition system, the string to be oriented so that the intake port is facing a bottom surface of the well, wherein the well runs in a horizontal direction. 
     
     
         18 . An apparatus for orienting and positioning a downhole ESP string in a well, the apparatus comprising:
 an accelerometer coupled to a section of a downhole electric submersible pump string that measures the orientation of the at least one of an intake port and a discharge port and sends port orientation data; and   a data acquisition system that receives port orientation data and causes an adjustment in the orientation of the downhole electric submersible pump string.   
     
     
         19 . The system of  claim 18 , wherein the data acquisition system further:
 determines an offset value based on the measurement of the orientation of the at least one of an intake port and a discharge port; and   sends the offset value to a well operations center.   
     
     
         20 . The system of  claim 18 , wherein data acquisition system further:
 determines an offset value based on the measuring;   compares the offset value with a desired orientation value; and   sends the offset value to the well operations center if the at least one offset value exceeds the desired orientation value by a predetermined threshold.