Simulating injection treatments from multiple wells

Abstract

Systems, methods, and instructions encoded in a computer-readable medium can perform operations related to simulating injection treatments applied to a subterranean formation from multiple well bores in the subterranean formation. A subterranean formation model representing rock blocks of a subterranean formation is received. Information on multiple injection treatments for multiple well bores in the subterranean formation is received. The subterranean formation model and the information on the injection treatments is used to predict a response of each of the rock blocks to forces acting on the rock block during the injection treatments. The injection treatments may include, for example, multiple fracture treatments for simultaneous application to the subterranean formation. In some implementations, injection treatments may be designed for a multiple-well bore system based on the predicted response of the rock blocks.

1 .- 24 . (canceled) 
     
     
         25 . A system for performing an injection treatment, the system comprising:
 an injection treatment control subsystem adapted to control a plurality of injection treatments applied to a subterranean formation through a plurality of well bores in the subterranean formation,   the plurality of injection treatments based on a simulation that predicts for each of a plurality of rock blocks of the subterranean formation a response of the rock block to forces acting on the rocks block during the plurality of injection treatments.   
     
     
         26 . The system of  claim 25 , further comprising a computing subsystem that performs the simulation. 
     
     
         27 . The system of  claim 25 , further comprising a tool installed in the well bore, the tool adapted to inject treatment fluid into the subterranean formation based on information received from the injection treatment control subsystem. 
     
     
         28 . The system of  claim 25 , further comprising the subterranean formation, the subterranean formation comprising at least one of shale, sandstone, carbonate, or coal. 
     
     
         29 . The system of  claim 25 , wherein the well bore comprises a horizontal well bore. 
     
     
         30 . The system of  claim 25 , wherein controlling the fracture treatment comprises controlling at least one of a flow rate, a flow volume, an injection location, a fluid property, a proppant property, or a slurry concentration. 
     
     
         31 . A method of treating a subterranean formation, the method comprising:
 designing a plurality of injection treatments for a plurality of well bores in a subterranean formation based on a simulation of forces acting on a plurality of rock blocks of the subterranean formation during simulated injection treatments; and   applying the plurality of injection treatments to the subterranean formation through the plurality of well bores.   
     
     
         32 . The method of  claim 31 , wherein applying the plurality of injection treatments comprises injecting treatment fluid into the subterranean formation at an injection pressure less than a fracture initiation pressure for the subterranean formation. 
     
     
         33 . The method of  claim 31 , wherein applying the plurality of injection treatments comprises injecting treatment fluid into the subterranean formation at an injection pressure greater than or equal to a fracture initiation pressure for the subterranean formation. 
     
     
         34 . The method of  claim 31 , wherein applying the plurality of injection treatments comprises injecting treatment fluid into the subterranean formation at an injection pressure less than a fracture closure pressure for the subterranean formation. 
     
     
         35 . The method of  claim 31 , wherein applying the plurality of injection treatments comprises injecting treatment fluid into the subterranean formation at an injection pressure greater than or equal to a fracture closure pressure for the subterranean formation. 
     
     
         36 . The method of  claim 31 , wherein applying the injection treatment initiates a fracture in the subterranean formation. 
     
     
         37 . The method of  claim 31 , wherein applying the injection treatment dilates a natural fracture in the subterranean formation. 
     
     
         38 . The method of  claim 31 , wherein designing the plurality of injection treatments comprises generating an injection treatment plan that designates, for each injection treatment, one of the well bores for applying the injection treatment. 
     
     
         39 . The method of  claim 38 , wherein applying the plurality of injection treatments comprises applying each injection treatment to the subterranean formation through the well bore designated for the injection treatment in the injection treatment plan. 
     
     
         40 . The method of  claim 31 , wherein designing the plurality of injection treatments comprises generating an injection treatment plan that includes information on a sequence for applying the plurality of injection treatments. 
     
     
         41 . The method of  claim 40 , wherein applying the plurality of injection treatments comprises applying the plurality of injection treatments to the subterranean formation according to the sequence. 
     
     
         42 . The method of  claim 31 , wherein applying the plurality of injection treatments comprises applying the plurality of injection treatments simultaneously. 
     
     
         43 . The method of  claim 31 , wherein applying the plurality of injection treatments comprises applying each of the plurality of injection treatments at a different time.