Methods for reducing fluid communication between wells

1. A method of reducing fluid communication between wells:

providing a first treatment fluid comprising synthetic clay and an aqueous carrier fluid; wherein the first treatment fluid does not comprise a gelling agent and viscosifying additive;

pumping the first treatment fluid into a first fracture network in fluid communication with a first well; wherein the first fracture network is in a subterranean formation and wherein the first treatment fluid is a pad fluid pumped into the first fracture network at a pressure exceeding the fracture gradient of the subterranean formation;

placing the synthetic clay in the first fracture network;

pumping a second treatment fluid into the first fracture network after placing the synthetic clay in the first fracture network; wherein the first fracture network is in fluid communication with a second fracture network; wherein the second fracture network is in fluid communication with a second well;

depositing the synthetic clay in a flow path between the first fracture network and the second fracture network; wherein the synthetic clay swells in the flow path between the first fracture network and the second fracture network as shear is reduced;

wherein the second treatment fluid is not produced in the second well after pumping the second treatment fluid into the first fracture network.

2. The method of claim 1 , wherein a temperature within the first fracture network is greater than 350° F.

3. The method of claim 1 , wherein the concentration of the synthetic clay in the first treatment fluid ranges from about 0.01% (w/v) of the first treatment fluid to about 20% (w/v) of the first treatment fluid.

4. The method of claim 1 , wherein the second treatment fluid comprises synthetic clay.

5. The method of claim 1 , further comprising a pre-pad fluid introduced prior to the first treatment fluid.

6. The method of claim 1 , wherein the second treatment fluid is a subsequent pad fluid which does not comprise synthetic clay.

7. A method of reducing fluid communication between wells:

providing a first treatment fluid comprising synthetic clay and an aqueous carrier fluid; wherein the first treatment fluid does not comprise a gelling agent F and viscosifying additive;

pumping the first treatment fluid into a first fracture network in fluid communication with a first well; wherein the first fracture network is in a subterranean formation and wherein the first treatment fluid is a pad fluid pumped into the first fracture network at a pressure exceeding the fracture gradient of the subterranean formation;

placing the synthetic clay in the first fracture network; wherein the first fracture network is in fluid communication with a second fracture network; wherein the second fracture network is in fluid communication with a second well;

depositing the synthetic clay in a flow path between the first fracture network and the second fracture network; wherein the synthetic clay swells in the flow path between the first fracture network and the second fracture network as shear is reduced;

pumping a second treatment fluid into the second fracture network in fluid communication with the second well;

wherein the second treatment fluid is not produced in the first well after pumping the second treatment fluid into the second fracture network.

8. The method of claim 7 , wherein a temperature within the first fracture network is greater than 350° F.

9. The method of claim 7 , wherein the concentration of the synthetic clay in the first treatment fluid ranges from about 0.01% (w/v) of the s treatment fluid to about 20% (w/v) of the first treatment fluid.

10. The method of claim 7 , wherein the second treatment fluid comprises synthetic clay.