US2011284214A1PendingUtilityA1

Methods and tools for multiple fracture placement along a wellbore

39
Assignee: AYOUB JOSEPH APriority: May 19, 2010Filed: May 6, 2011Published: Nov 24, 2011
Est. expiryMay 19, 2030(~3.8 yrs left)· nominal 20-yr term from priority
Inventors:Joseph AyoubDinesh R. PatelKevin W. EnglandFrank F. ChangGeorge Waters
E21B 43/26
39
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Claims

Abstract

The invention discloses a tool for use in a wellbore, comprising: a tubular elongated member; openings on the tubular member able to be close with a valve or a sleeve; swellable packers positioned between said opening on the tubular member; and a control unit; the control unit operating the valve or sleeve for fracturing a subterranean formation in a wellbore, in the stages: a. fracturing the subterranean formation through a first stage at predefined first locations; and b. fracturing the subterranean formation through a second stage at second location(s) wherein each location from the second location(s) is localized between the predefined first locations.

Claims

exact text as granted — not AI-modified
1 . A tool for use in a wellbore, comprising:
 a tubular elongated member;   openings on the tubular member able to be close with a valve or a sleeve;   swellable packers positioned between said opening on the tubular member; and   a control unit; the control unit operating the valve or sleeve for fracturing a subterranean formation in a wellbore, in the stages:
 a. fracturing the subterranean formation through a first stage at predefined first locations; and 
 b. fracturing the subterranean formation through a second stage at second location(s) wherein each location from the second location(s) is localized between the predefined first locations. 
   
     
     
         2 . The tool of  claim 1 , wherein the wellbore has a section substantially deviated or horizontal. 
     
     
         3 . The tool of  claim 1 , wherein the wellbore has a horizontal section where the tool is placed. 
     
     
         4 . The tool of  claim 1 , wherein the control unit is a downhole tool, a coiled tubing or a drill string. 
     
     
         5 . The tool of  claim 1 , wherein the tool is deployed during completion. 
     
     
         6 . The tool of  claim 1 , wherein the swellable packers are activated with oil based, water based, or alternative fluids. 
     
     
         7 . The tool of  claim 1 , wherein the swellable packers set by mechanical or thermal means. 
     
     
         8 . A tool for use in a wellbore, comprising:
 a tubular elongated member;   openings on the tubular member able to be close with a valve or a sleeve;   swellable packers positioned between said opening on the tubular member; and   a control unit; the control unit operating the valve or sleeve for fracturing a subterranean formation in a wellbore, in the stages:
 a. fracturing the subterranean formation through a first stage at predefined first locations; 
 b. fracturing the subterranean formation through a second stage at second location(s) wherein each location from the second location(s) is localized between the predefined first locations; and 
 c. fracturing the subterranean formation through a third stage at third locations wherein each location from the third locations is localized between the one of the predefined first locations and one of the second location(s). 
   
     
     
         9 . The tool of  claim 9 , wherein the wellbore has a section substantially deviated or horizontal. 
     
     
         10 . The tool of  claim 9 , wherein the wellbore has a horizontal section where the tool is placed. 
     
     
         11 . The tool of  claim 9 , wherein the control unit is a downhole tool, a coiled tubing or a drill string. 
     
     
         12 . The tool of  claim 9 , wherein the tool is deployed during completion. 
     
     
         13 . The tool of  claim 9 , wherein the swellable packers are activated with oil based, water based, or alternative fluids. 
     
     
         14 . The tool of  claim 9 , wherein the swellable packers set by mechanical or thermal means. 
     
     
         15 . A tool for use in a wellbore, comprising:
 a tubular elongated member;   openings on the tubular member able to be close with a valve or a sleeve;   swellable packers positioned between said opening on the tubular member; and   a control unit; the control unit operating the valve or sleeve for fracturing a subterranean formation in a wellbore, in the stages:
 a. fracturing the subterranean formation through a first stage at predefined first locations; 
 b. fracturing the subterranean formation through a second stage at second location(s) wherein each location from the second location(s) is localized between the predefined first locations; 
 c. fracturing the subterranean formation through a third stage at third locations wherein each location from the third locations is localized between the one of the predefined first locations and one of the second location(s); and 
 d. fracturing the subterranean formation through a n-stage at n locations wherein each location from the n locations is localized between the one of the preceding locations. 
   
     
     
         16 . The tool of  claim 15 , wherein the wellbore has a section substantially deviated or horizontal. 
     
     
         17 . The tool of  claim 15 , wherein the wellbore has a horizontal section where the tool is placed. 
     
     
         18 . The tool of  claim 15 , wherein the control unit is a downhole tool, a coiled tubing or a drill string. 
     
     
         19 . The tool of  claim 15 , wherein the tool is deployed during completion. 
     
     
         20 . The tool of  claim 15 , wherein the swellable packers are activated with oil based, water based, or alternative fluids. 
     
     
         21 . The tool of  claim 15 , wherein the swellable packers set by mechanical or thermal means.

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