Method And System For Completing A Well

Abstract

A technique facilitates the detection and measurement of formation properties with various measurement devices, such as logging tools. The technique comprises locating a standard tubular in a well such that the standard tubular extends to a zone of interest with respect to a logging procedure. A transparent tubing is attached to the standard tubing so as to extend along the zone of interest. Additionally, a protective material is directed to the region adjacent the transparent tubing to protect the transparent tubing from detrimental contact with deleterious well fluid.

1 . A method of forming an observation well in an earth formation, comprising:
 locating a standard casing in a well above a zone of interest;   removably attaching a transparent casing to the standard casing so the transparent casing is adjacent the zone of interest.   
     
     
         2 . The method as recited in  claim 1 , further comprising directing a protective fluid to a region between the transparent casing and the surrounding earth formation to protect the transparent casing from contacting deleterious fluid. 
     
     
         3 . The method as recited in  claim 1 , further comprising performing a logging operation while moving a logging tool along an interior of the transparent casing. 
     
     
         4 . The method as recited in  claim 1 , wherein locating the standard casing in the well comprises cementing the standard casing in place. 
     
     
         5 . The method as recited in  claim 1 , wherein removably attaching the transparent casing to the standard casing comprises attaching the transparent casing to the standard casing with a liner hanger. 
     
     
         6 . The method as recited in  claim 1 , further comprising forming the transparent casing from a drillable material. 
     
     
         7 . The method as recited in  claim 2 , wherein directing the protective fluid to the region between the transparent casing and the surrounding earth formation comprises directing a non-aqueous fluid to isolate the transparent casing from aqueous fluids. 
     
     
         8 . The method as recited in  claim 2 , wherein directing the protective fluid to the region between the transparent casing and the surrounding earth formation comprises directing one of a liquid, foam, slurry, gel, or gas. 
     
     
         9 . The method as recited in  claim 1 , wherein removably attaching the transparent casing to the standard casing comprises supporting the weight of the transparent casing with the standard casing. 
     
     
         10 . The method as recited in  claim 1 , further comprising mounting at least one sensor on the transparent casing. 
     
     
         11 . The method as recited in  claim 2 , further comprising utilizing a fluid circulation control system to change the protective fluid filling the region between the transparent casing and the surrounding earth formation. 
     
     
         12 . The method as recited in  claim 1 , wherein locating the standard casing in the well comprises removing a section of existing casing; and wherein removably attaching the transparent casing to the standard casing comprises positioning the transparent casing in an open section left after removing the section of existing casing. 
     
     
         13 . A system for use in a well, comprising:
 a standard casing deployed in a wellbore above a logging zone;   a transparent casing disposed in the logging zone; and   an attachment mechanism by which the transparent casing is retrievably attached to the standard casing.   
     
     
         14 . The system as recited in  claim 13 , wherein the attachment mechanism allows removal of the transparent casing from the standard casing. 
     
     
         15 . The system as recited in  claim 13 , wherein the attachment mechanism comprises a liner hanger. 
     
     
         16 . The system as recited in  claim 13 , further comprising a protective fluid disposed around the transparent casing. 
     
     
         17 . The system as recited in  claim 16 , wherein the protective fluid is one of a liquid, foam, slurry, gel, or gas. 
     
     
         18 . The system as recited in  claim 13 , further comprising at least one sensor mounted to the transparent casing. 
     
     
         19 . The system as recited in  claim 13 , wherein the transparent casing is formed of fiber reinforced plastic. 
     
     
         20 . The system as recited in  claim 13 , further comprising a fluid injection system to inject a protective fluid around the transparent casing. 
     
     
         21 . The system as recited in  claim 13 , further comprising a fluid pump positioned in the transparent casing to remove deleterious fluids. 
     
     
         22 . A method, comprising:
 deploying a tubing in a well such that a portion of the tubing is metal tubing and a connected portion is non-metallic, non-magnetic tubing;   locating the non-metallic, non-magnetic tubing in a zone of interest to be logged; and   providing a protective fluid barrier along the non-metallic, non-magnetic tubing.   
     
     
         23 . The method as recited in  claim 22 , further comprising logging the zone of interest via a logging tool moved along an interior of the non-metallic, non-magnetic tubing. 
     
     
         24 . The method as recited in  claim 22 , further comprising mounting a sensor on the non-metallic, non-magnetic tubing to detect a well parameter. 
     
     
         25 . The method as recited in  claim 22 , wherein immediately before the protective fluid barrier is provided, the zone of interest is sealed using a polymer or resin. 
     
     
         26 . A system, comprising:
 a metal tubing extending along a wellbore to a zone of interest;   a non-metallic, non-magnetic tubing deployed in the zone of interest;   an attachment mechanism by which the non-metallic, non-magnetic tubing is attached to the metal tubing; and   a protective material deployed along the non-metallic, non-magnetic tubing to protect the non-metallic, non-magnetic tubing against deleterious well fluids.   
     
     
         27 . The system as recited in  claim 26 , wherein the attachment mechanism comprises a liner hanger. 
     
     
         28 . The system as recited in  claim 26 , further comprising a sensor attached to the non-metallic, non-magnetic tubing.