US2015285023A1PendingUtilityA1

System, method, and apparatus for multi-stage completion

Assignee: SCHLUMBERGER TECHNOLOGY CORPPriority: Nov 12, 2012Filed: Oct 25, 2013Published: Oct 8, 2015
Est. expiryNov 12, 2032(~6.3 yrs left)· nominal 20-yr term from priority
E21B 17/00E21B 43/26E21B 33/127E21B 33/1243E21B 43/267
44
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Claims

Abstract

Systems and methods for completing a well, involving a fracture placement packer assembly comprising an inflatable packer positioned on an uphole side of the assembly; the inflatable packer is structured to execute repeated inflation/deflation cycles in response to an inflation/deflation procedure, and wherein the inflatable packer is a self-anchoring packer; and the fracture placement packer assembly is structured to be couplable to a conveyance device.

Claims

exact text as granted — not AI-modified
What is claimed is: 
     
         1 . A method, comprising:
 positioning a fracture placement packer assembly, comprising an inflatable packer positioned on an uphole side of the assembly, in a wellbore at a fracture treatment position;   inflating the inflatable packer;   fracture treating an interval of a subtteranean formation operationally coupled to the wellbore; and   the method further comprising at least one operation selected from the operations consisting of:
 marking the interval before the fracture treating; 
 wherein the inflating the packer further comprises inflating a self-anchoring packer; 
 fracture treating a second interval after the first interval, wherein the second interval comprises a greater measured depth than the first interval; 
 fracture treating a second interval after the first interval, wherein the second interval comprises a smaller measured depth than the first interval, the method further including positioning a sand plug across the first interval before the fracture treating the second interval; 
 fracture treating a second interval after the first interval, wherein the second interval comprises a smaller measured depth than the first interval, the method further including positioning a sand plug across the first interval before the fracture treating the second interval, wherein the sand plug comprises a high particulate fraction fluid having a plurality of particle size modalities therein; 
 fracture treating a second interval after the first interval, wherein the second interval comprises a smaller measured depth than the first interval, the method further including positioning a sand plug across the first interval before the fracture treating the second interval, wherein the sand plug comprises a high particulate fraction fluid having a plurality of particle size modalities therein, and removing an amount of water from the sand plug; 
 performing the fracture treating with a drill string positioned in the wellbore; 
 performing the fracture treating with an uncemented casing string positioned in the wellbore; 
 interpreting at least one of pressure information, temperature information, and inflation information, determining a wear value for the assembly in response to the information, and providing the wear value to an output device; 
 wherein the marking comprises oriented marking; 
 wherein the marking comprises a selected geometric configuration; 
 wherein the marking comprises at least one operation selected from scoring, punching, perforating, pre-inflating the packer, gouging, grooving, and indenting; 
 wherein the inflating comprises an operation selected from the operations consisting of providing a pressure pulse, dropping a ball, and providing an electrical signal; 
 providing a liner in the wellbore, positioning a number of external packers between the liner and a wellbore face, wherein each of the external packers comprises an activatable packer, activating the external packers, and wherein the inflating the inflatable packer comprises running the inflatable packer to a selected position within the liner before the inflating; 
 the method having the “providing a liner” operation, wherein the selected position comprises a position aligning the inflatable packer with one of the external packers; and 
 the method having the “providing a liner” operation, wherein the activating the external packers comprises at least one operation selected from inflating the external packers, swelling the external packers, and mechanically activating the external packers. 
   
     
     
         2 . A system, comprising:
 a fracture placement packer assembly comprising an inflatable packer positioned on an uphole side of the assembly;   wherein the inflatable packer is structured to execute repeated inflation/deflation cycles in response to an inflation/deflation procedure, and wherein the inflatable packer is a self-anchoring packer; and   wherein the fracture placement packer assembly is structured to be couplable to a conveyance device.   
     
     
         3 . The system of  claim 2 , wherein the conveyance device comprises a device selected from the devices consisting of: a coiled tubing unit, a wellbore tubular; a wellbore casing; and a drill string. 
     
     
         4 . The system of  claim 2 , wherein the inflation/deflation procedure is performed using a device selected from the devices consisting of: a pressure pulse generator; an electrical signal generator; and ball activated actuator. 
     
     
         5 . The system  claim 2 , further comprising a wellbore having a first interval and a second interval, the second interval at a smaller measured depth than the first interval, the fracture placement packer assembly positioned at a smaller measured depth than the second interval, the system further comprising a deviation device positioned across the first interval. 
     
     
         6 . The system of  claim 5 , wherein the wellbore at the position of the first interval is one of horizontal and highly deviated, and wherein the deviation device comprises a sand plug. 
     
     
         7 . The system of  claim 6 , wherein the sand plug comprises a high particulate fraction fluid having a plurality of particle size modalities therein. 
     
     
         8 . The system of  claim 7 , wherein the high particulate fraction fluid further comprises a water removal constituent. 
     
     
         9 . The system of  claim 8 , wherein the water removal constituent comprises a material selected from the materials consisting of: fibers, a hydroscopic material, a water absorbent material, and a coated material. 
     
     
         10 . The system of  claim 2 , further comprising a wellbore marking tool. 
     
     
         11 . The system of  claim 10 , wherein the wellbore marking tool comprises a tool selected from the tools consisting of a scoring device, a punching device, a cladding coupled to the inflatable packer, a gouging device, a grooving device, an indentation device, a rotary tool, and a star shaped rotary tool. 
     
     
         12 . A system, comprising:
 a straddle packer assembly comprising a first inflatable packer positioned on an uphole side of the assembly and a second inflatable packer positioned on a down hole side of the assembly;   wherein each of the inflatable packers are structured to execute repeated inflation/deflation cycles in response to an inflation/deflation procedure;   wherein the fracture placement packer assembly is structured to be couplable to a conveyance device; and   wherein the straddle packer assembly comprises a spacer element positioned between the first and second inflatable packers, the spacer element including a fluid conductance feature and the spacer element structured to maintain the inflatable packers at a specified distance.   
     
     
         13 . The system of  claim 12 , wherein the conveyance device comprises a device selected from the devices consisting of: a coiled tubing unit, a wellbore tubular; a wellbore casing; and a drill string. 
     
     
         14 . The system of  claim 12 , wherein the inflation/deflation procedure is performed using a device selected from the devices consisting of: a pressure pulse generator; an electrical signal generator; and ball activated actuator. 
     
     
         15 . The system of  claim 12 , further comprising a wellbore marking tool. 
     
     
         16 . The system of  claim 15 , wherein the wellbore marking tool comprises a tool selected from the tools consisting of a scoring device, a punching device, a cladding coupled to at least one of the inflatable packers, a gouging device, a grooving device, an indentation device, a rotary tool, and a star shaped rotary tool. 
     
     
         17 . The system of  claim 12 , further comprising a liner positioned across a target fracturing zone, and wherein the straddle packer assembly is positioned such that the first and second inflatable packers define the target fracturing zone. 
     
     
         18 . The system of  claim 17 , wherein the liner is not cemented, the system further comprising two external packers positioned between a formation face comprising the target fracturing zone, and wherein the first and second inflatable packers are each positioned at one of the two external packers. 
     
     
         19 . The system of  claim 18 , wherein the two external packers comprise one of inflatable packers, swellable packers, and mechanically activated packers. 
     
     
         20 . The system of  claim 12 , wherein the fluid conductance feature comprises at least one feature selected from the features consisting of: slots, ports, openings, and a sliding sleeve. 
     
     
         21 . The system of  claim 12 , wherein the specified distance comprises a distance selected from the distance ranges consisting of: five feet to ten feet, inclusive; ten feet to thirty feet, inclusive; thirty feet to ninety feet, inclusive; and ninety feet to one thousand feet, inclusive.

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