Ported sub treatment system

Abstract

A ported sub treatment system in which well treatment materials are pumped into an uncased portion of a well through a pipe having a number of holes at specific locations along its length such that these materials are able to be distributed as desired by the operator, through these holes, along the length of the well. The treatment system is also able to provide sufficient pressure such that treatment materials are able to penetrate or fracture the rock surrounding the well, if necessary.

What is claimed is:  
     
         1 . A method of providing well treatment materials to an uncased portion of a well comprising: 
 inserting a length of pipe having a bottom end into said uncased well, wherein said pipe is not cemented into said well; and    providing well treatment materials into said pipe such that said materials are released from a plurality of openings along the pipe's length into an uncased area of said well such that the entire uncased portion of the well may be treated in a single stage, said uncased portion being longer than 500 feet.    
     
     
         2 . The method of  claim 1  in which the uncased area of said well deviates from a direction perpendicular to the earth's surface.  
     
     
         3 . The method of  claim 1  wherein said length of pipe is jointed.  
     
     
         4 . The method of  claim 3  wherein said length of pipe further comprises one or more ported subs placed at specific locations along said length of pipe, said ported subs comprising lengths of jointed pipe having one or more openings located along their length such that well treatment materials can be released from said openings.  
     
     
         5 . The method of  claim 4  wherein said openings are surrounded by replaceable nozzles.  
     
     
         6 . The method of  claim 5  wherein said nozzles are non-erosional.  
     
     
         7 . The method of  claim 1  wherein said length of pipe is plugged at its bottom end.  
     
     
         8 . The method of  claim 1  further comprising setting a packer at a location in said well such that said well treatment materials are effectively blocked from moving past said packer.  
     
     
         9 . The method of  claim 8  wherein said well is one of a plurality of lateral wells originating from a central bore hole and said packer is set at a location deeper than the kick-off point of said well.  
     
     
         10 . The method of  claim 1  further comprising leaving said pipe uncemented in said well after treatment.  
     
     
         11 . A method of providing well treatment materials to an uncased portion of a well comprising: 
 inserting a length of pipe having a bottom end into said uncased well, wherein said pipe is not cemented into said well; and    providing well treatment materials into said pipe such that said materials are released from a plurality of openings along the pipe's length into an uncased area of said well such that at least one uncased portion of the well longer than 500 feet may be treated in a single stage.    
     
     
         12 . The method of  claim 11  in which the uncased area of said well deviates from a direction perpendicular to the earth's surface.  
     
     
         13 . The method of  claim 11  wherein said length of pipe is jointed.  
     
     
         14 . The method of  claim 13  wherein said length of pipe further comprises one or more ported subs placed at specific locations along said length of pipe, said ported subs comprising lengths of jointed pipe having one or more openings located along their length such that well treatment materials can be released from said openings.  
     
     
         15 . The method of  claim 14  wherein said openings are surrounded by replaceable nozzles.  
     
     
         16 . The method of  claim 15  wherein said nozzles are non-erosional.  
     
     
         17 . The method of  claim 11  wherein said length of pipe is plugged at its bottom end.  
     
     
         18 . The method of  claim 11  further comprising setting a packer at a location in said well such that said well treatment materials are effectively blocked from moving past said packer.  
     
     
         19 . The method of  claim 18  wherein said well is one of a plurality of lateral wells originating from a central bore hole and said packer is set at a location deeper than the kick-off point of said well.  
     
     
         20 . The method of  claim 11  further comprising leaving said pipe uncemented in said well after treatment.  
     
     
         21 . A method of providing well treatment materials to an uncased portion of a well comprising: 
 inserting a length of pipe having a bottom end into said uncased well, wherein said pipe is not cemented into said well;    perforating said pipe such that one or more openings are created at multiple locations along the pipe's length, each location laterally spaced from the other and defined by a set of holes; and    providing well treatment materials into said pipe such that said materials are released from said openings into an uncased area of said well such that separate locations in said well proximate to each set of holes may be treated by the same well treatment materials in a single stage.    
     
     
         22 . The method of  claim 21  in which the uncased area of said well deviates from a direction perpendicular to the earth's surface.  
     
     
         23 . The method of  claim 21  wherein said length of pipe is jointed.  
     
     
         24 . The method of  claim 21  wherein said openings are surrounded by replaceable nozzles.  
     
     
         25 . The method of  claim 24  wherein said nozzles are non-erosional.  
     
     
         26 . The method of  claim 21  wherein said length of pipe is plugged at its bottom end.  
     
     
         27 . The method of  claim 21  further comprising setting a packer at a location in said well such that said well treatment materials are effectively blocked from moving past said packer.  
     
     
         28 . The method of  claim 27  wherein said well is one of a plurality of lateral wells originating from a central bore hole and said packer is set at a location deeper than the kick-off point of said well.  
     
     
         29 . The method of  claim 21  further comprising leaving said pipe uncemented in said well after treatment.