Sand control without requiring a gravel pack screen

Abstract

A method combining resin consolidation and placement of fibrous material in intimate mixture with particulates provides a means of stabilizing a formation respect to sand production while enhancing well productivity without requiring a gravel pack screen.

Having thus described our invention, we claim: 
     
       1. The method of treating a subterranean formation penetrated by a wellbore comprising the steps of consolidating the formation in a near-wellbore zone .[.with.]. .Iadd.by injecting .Iaddend.a resinous material .Iadd.into the formation.Iaddend., providing a fluid suspension including an intimate mixture of a particulate material and a fibrous material, pumping the fluid suspension including a mixture of the particulate material and the fibrous material through the wellbore and the near-wellbore zone .[.to deposit.]. .Iadd.at sufficient pressure to fracture the formation, and depositing .Iaddend.the mixture of particulate material and fibrous material in the subterranean formation.[., and perforating the wellbore, wherein the steps of perforating and consolidating are performed simultaneously.].. 
     
     
       2. The method as set forth in claim 1 wherein the step of consolidating comprises pumping .[.a resin.]. .Iadd.the resinous material .Iaddend.into the near-wellbore zone. 
     
     
       3. The method as set forth in claim 2 further including an overflush treatment subsequent to the step of consolidating to increase permeability of the consolidated, near wellbore-zone. 
     
     
       4. The method as set forth in claim 1 wherein the step of consolidating comprises .[.placing.]. .Iadd.injecting .Iaddend.a resin-coated proppant into the near-wellbore zone. 
     
     
       5. The method as set forth in claim 4 wherein the resin-coated proppant is a curable resin-coated proppant and the step of consolidating includes the step of pumping, a curing agent subsequent to the placing of the resin-coated proppant. 
     
     
       6. The method as set forth in claim 1 when wherein the step of providing comprises providing an intimate mixture of the particulate material and 0.01 to 50% fiber by volume of the mixture. 
     
     
       7. The method as set forth in claim 6 .[.when.]. wherein the step of providing comprises providing an intimate mixture of .[.a.]. .Iadd.the .Iaddend.particulate material and 0.01 to 5% fiber by volume of the mixture. 
     
     
       8. The method as set forth in claim 7 .[.when.]. wherein the step of providing comprises providing an intimate mixture of .[.a.]. .Iadd.the .Iaddend.particulate material and 0.01 to 2% fiber by volume of the mixture. 
     
     
       9. The method as set forth in claim 1 wherein the step of providing comprises providing an intimate mixture of a particulate material and a fiber selected from a group consisting of glass fibers, carbon fibers, natural fibers, synthetic polymer fibers, ceramic fibers, metal fibers and combinations thereof. 
     
     
       10. The method as set forth in claim 1 wherein the step of providing comprises providing an intimate mixture of a particulate material and glass fibers. 
     
     
       11. The method as set forth in claim 1 wherein the step of providing comprises providing an intimate mixture of a particulate material, proppant and carbon fibers. 
     
     
       12. The method as set forth in claim 1 wherein the step of providing comprises providing an intimate mixture of a particulate material and synthetic polymer fibers. 
     
     
       13. The method as set forth in claim 1 further including the step of allowing formation fluids to flow back into the wellbore to clean up the near-wellbore zone. 
     
     
       14. The method as set forth in claim 1 further including the step of placing a slotted liner in the wellbore adjacent the formation. 
     
     
       15. The method as set forth in claim 1 wherein the step of providing comprises providing an intimate mixture of a particulate material and fibers, the particulate material having a size of between about 10 and about 100 mesh. 
     
     
       16. The method as set forth in claim 1 wherein the step of providing comprises providing an intimate mixture of a particulate material and fibers, the particulate material having a size of between 10 and 20 mesh. 
     
     
       17. The method as set forth in claim 1 wherein the step of providing comprises providing an intimate mixture of a particulate material and fibers, .Iadd.the .Iaddend.particulate material having a size of between 20 and 40 mesh. 
     
     
       18. The method as set forth in claim 1 wherein the step of providing comprises providing an intimate mixture of a particulate material and fibers, .Iadd.the .Iaddend.particulate material having a size of between 40 and 60 mesh. 
     
     
       19. The method as set forth in claim 1 wherein the step of providing comprises providing an intimate mixture of a particulate material and a fiber having a shape selected from a group consisting of linear, curved, circular, spiral, branched, fibrillated and crimped geometry. .Iadd.20. The method as set forth in claim 1 wherein the step of consolidating comprises perforating the wellbore simultaneously with the step of consolidating. .Iaddend.