Method and system for completing a well

Abstract

Disclosed herein is a method of injecting a fluid into a subterranean formation, the method comprising: placing a first wellbore in the subterranean formation; injecting the fluid through the first wellbore into the subterranean formation at an injection rate of R1, wherein R1 is varied with time or fixed; subsequently injecting the fluid through the first wellbore into the subterranean formation at an injection rate of R2 for a duration of time D1, wherein R2 is varied with time or fixed; subsequently injecting the fluid through the first wellbore into the subterranean formation at an injection rate of R3, wherein R3 is varied with time or fixed.

1 . A method of injecting a fluid into a subterranean formation, the method comprising:
 (a) placing a first wellbore in the subterranean formation;   (b) injecting the fluid through the first well bore into the subterranean formation at an injection rate of R 1 , wherein the fluid enters the subterranean formation at a pressure greater than or equal to the minimum horizontal stress in at least a portion of the subterranean formation;   (c) subsequently at a time T 1  injecting the fluid through the first wellbore into the subterranean formation at an injection rate of R 2 , wherein the injection rate R 2  is no greater than 50% of the injection rate R 1  and no less than 5% of the injection rate R 1 ;   (d) subsequently injecting the fluid through the first wellbore into the subterranean formation at an injection rate less than or equal to R 2  for a duration of time D 1 ; and   (e) subsequently injecting the fluid through the first wellbore into the subterranean formation at an injection rate of R 3 , wherein the fluid enters the subterranean formation at a pressure greater than or equal to the minimum horizontal stress in at least a portion of the subterranean formation, wherein the injection rate R 3  is no less than 150% of the injection rate R 2 .   
     
     
         2 . The method of  claim 1 , wherein the fluid comprises water, gel, slickwater, hybrid fracturing fluid, viscosified aqueous fluid, acid, foam, carbon dioxide, nitrogen, hydrocarbon, polymer, sand, resin-coated proppant, ceramic proppant, or proppant. 
     
     
         3 . The method of  claim 1  comprising changing the composition of the fluid. 
     
     
         4 . The method of  claim 1 , wherein the fluid does not comprise diverter material during step (d). 
     
     
         5 . The method of  claim 1 , wherein the duration of time D 1  is no less than 30 seconds, or no less than 5 minutes, or no less than 10 minutes, or no less than 30 minutes, or no greater than 3 hours. 
     
     
         6 . The method of  claim 1 , wherein steps (c)-(e) are repeated. 
     
     
         7 . The method of  claim 1 , wherein the injection rate R 1  is greater than or equal to 20 barrels per minute. 
     
     
         8 . The method of  claim 1 , wherein the injection rate R 2  is greater than or equal to 1 barrels per minute. 
     
     
         9 . The method of  claim 1 , wherein the first well bore has two or more perforated zones. 
     
     
         10 . The method of  claim 9 , wherein the ratio of the rate of fluid injected into a first perforated zone over the rate of fluid injected into a second perforated zone is Rr and Rr is less than  1  during step (b), wherein Rr during step (e) is greater than Rr during step (b). 
     
     
         11 . The method of  claim 1  comprising recovering hydrocarbons from the subterranean formation through the first well bore. 
     
     
         12 . The method of  claim 1 , wherein the subterranean formation is selected from the group consisting of a low permeability formation, shale formation, tight formation, ultra-tight formation, hydrocarbon-bearing formation, oil reservoir, gas reservoir, or hydrocarbon reservoir, and combinations thereof 
     
     
         13 . The method of  claim 1 , wherein the subterranean formation is hydraulically fractured. 
     
     
         14 . The method of  claim 1  comprising placing a second wellbore penetrating the subterranean formation and monitoring the second well bore to determine time T 1 . 
     
     
         15 . The method of  claim 14 , wherein the fluid pressure in the second well bore is measured. 
     
     
         16 . The method of  claim 15 , wherein at least a portion of the subterranean formation in contact with the second well bore has been hydraulically fractured. 
     
     
         17 . The method of  claim 15 , wherein the fluid pressure in the second wellbore is measured using a wellhead pressure gauge, a downhole pressure gauge, a downhole retrievable pressure gauge, a downhole fiber optic gauge, or a downhole pressure gauge installed in a bridge plug. 
     
     
         18 . A method of injecting a fluid into a subterranean formation, the method comprising:
 placing a first well bore in the subterranean formation;   injecting the fluid through the first wellbore into the subterranean formation at an injection rate of R 1 , wherein R 1  is varied with time or fixed;   injecting the fluid through the first wellbore into the subterranean formation at an injection rate of R 2  for a duration of time D 1 , wherein R 2  is varied with time or fixed and R 2  is in the range of 5%-50% of the max of injection rate R 1 ; and   injecting the fluid through the first wellbore into the subterranean formation at an injection rate of R 3 , wherein R 3  is varied with time or fixed and wherein the max of injection rate R 3  is no less than 150% of the minimum of injection rate R 2 .   
     
     
         19 . The method of  claim 19  wherein the fluid enters the subterranean formation at a pressure greater than or equal to the minimum horizontal stress in at least a portion of the subterranean formation when the fluid is injected at injection rate of R 1  or R 3 . 
     
     
         20 . A non-transient computer-readable medium including instructions that, when executed by one or more processors, causes the one or more processors to perform a method, the method comprising:
 placing a first well bore in the subterranean formation;   injecting the fluid through the first wellbore into the subterranean formation at an injection rate of R 1 , wherein R 1  is varied with time or fixed;   injecting the fluid through the first wellbore into the subterranean formation at an injection rate of R 2  for a duration of time D 1 , wherein R 2  is varied with time or fixed and R 2  is in the range of 5%-50% of the max of injection rate R 1 ; and   injecting the fluid through the first wellbore into the subterranean formation at an injection rate of R 3 , wherein R 3  is varied with time or fixed and wherein the max of injection rate R 3  is no less than 150% of the minimum of injection rate R 2 .