Methods and Compositions for Screenless Completion

Abstract

Methods are provided that include a method of a) placing a hydrojetting tool into a subterranean formation; b) introducing a jetting fluid that includes an aqueous base fluid, a stabilizing agent, and a cutting agent into the subterranean formation by use of the hydrojetting tool at a rate sufficient to create at least one fracture; c) introducing a slug fluid that includes an aqueous base fluid and a degradable diverting agent into an annulus formed between the hydrojetting tool and the subterranean formation; d) introducing a propping fluid that includes an aqueous base fluid and proppants coated with a consolidating agent into the annulus formed between the hydrojetting tool and the subterranean formation; and e) placing the proppants in the fracture.

The invention claimed is: 
     
         1 . A method comprising:
 a) placing a hydrojetting tool into a subterranean formation;   b) introducing a jetting fluid comprising an aqueous base fluid, a stabilizing agent, and a cutting agent into the subterranean formation by use of the hydrojetting tool at a rate sufficient to create at least one fracture;   c) introducing a slug fluid comprising an aqueous base fluid and a degradable diverting agent into an annulus formed between the hydrojetting tool and the subterranean formation;   d) introducing a propping fluid comprising an aqueous base fluid and proppants coated with a consolidating agent into the annulus formed between the hydrojetting tool and the subterranean formation; and   e) placing the proppants in the fracture.   
     
     
         2 . The method of  claim 1 , wherein the hydrojetting tool comprises at least one jet-forming nozzle. 
     
     
         3 . The method of  claim 1  further comprising:
 f) repositioning the hydrojetting tool to a different interval or zone within the subterranean formation; and 
 g) repeating steps b), c), d) and e). 
 
     
     
         4 . The method of  claim 1 , wherein the hydrojetting tool is a coiled tubular or a jointed pipe. 
     
     
         5 . The method of  claim 1 , wherein the stabilizing agent comprises a non-aqueous tackifying agent; an aqueous tackifying agent; a silyl-modified polyamide; a curable resin composition, or any combination thereof. 
     
     
         6 . The method of  claim 1 , wherein the cutting agent is selected from the group consisting of cutting sand, proppant, and any combination thereof. 
     
     
         7 . The method of  claim 1 , wherein the degradable diverting agent is selected from the group consisting of dextran, cellulose, chitin, protein, aliphatic polyester, poly(lactide), poly(glycolide), poly(ε-caprolactone), poly(hydroxybutyrate), poly(anhydride), aliphatic polycarbonate, poly(orthoester), poly(amino acid), poly(ethylene oxide), polyphosphazene, any derivative thereof, and any combination thereof. 
     
     
         8 . The method of  claim 1 , wherein the proppants are selected from the group consisting of sand, ground walnut hull, bauxite, ceramic, polymer, any derivative thereof, and any combination thereof. 
     
     
         9 . The method of  claim 1 , wherein the proppants are pre-coated with the consolidating agent or coated on-the-fly with the consolidating agent. 
     
     
         10 . The method of  claim 1 , wherein the consolidating agent is selected from the group consisting of an epoxy, a furan, a phenolic, a furfuryl aldehyde, a furfuryl alcohol, a silicon-based resin, a non-aqueous tackifying agent, an aqueous tackifying agent, a silyl-modified polyamide, a curable resin composition, a zeta potential-modifying aggregating composition, a fibrous agent, derivatives thereof, and combinations thereof. 
     
     
         11 . The method of  claim 1 , wherein the jetting fluid further comprises an additive selected from the group consisting of a clay stabilizer, a scale inhibitor, a corrosion inhibitor, a biocide, a surfactant, a gas hydrate inhibitor, and any combination thereof. 
     
     
         12 . A method comprising:
 a) placing a hydrojetting tool into a wellbore;   b) introducing a jetting fluid comprising an aqueous base fluid, a stabilizing agent, and a cutting agent into the wellbore by use of the hydrojetting tool at a rate sufficient to create at least one fracture;   c) introducing a slug fluid comprising an aqueous base fluid and a degradable diverting agent into an annulus formed between the hydrojetting tool and the wellbore;   d) introducing a propping fluid comprising an aqueous base fluid and proppants coated with a consolidating agent into the annulus formed between the hydrojetting tool and the wellbore;   e) placing the proppants into the fracture;   f) repositioning the hydrojetting tool to a different interval or zone within the wellbore; and   g) repeating steps b), c), d) and e).   
     
     
         13 . The method of  claim 12 , wherein the hydrojetting tool comprises at least one jet-forming nozzle. 
     
     
         14 . The method of  claim 12 , wherein the hydrojetting tool is a coiled tubular or a jointed pipe. 
     
     
         15 . The method of  claim 12 , wherein the stabilizing agent comprises a non-aqueous tackifying agent; an aqueous tackifying agent; a silyl-modified polyamide; a curable resin composition, or any combination thereof. 
     
     
         16 . The method of  claim 12 , wherein the cutting agent is selected from the group consisting of cutting sand, proppant, and any combination thereof. 
     
     
         17 . The method of  claim 12 , wherein the degradable diverting agent is selected from the group consisting of dextran, cellulose, chitin, protein, aliphatic polyester, poly(lactide), poly(glycolide), poly(ε-caprolactone), poly(hydroxybutyrate), poly(anhydride), aliphatic polycarbonate, poly(orthoester), poly(amino acid), poly(ethylene oxide), polyphosphazene, any derivative thereof, and any combination thereof. 
     
     
         18 . The method of  claim 12 , wherein the proppants are selected from the group consisting of sand, ground walnut hull, bauxite, ceramic, polymer, and any combination thereof. 
     
     
         19 . The method of  claim 12 , wherein the consolidating agent is selected from the group consisting of an epoxy, a furan, a phenolic, a furfuryl aldehyde, a furfuryl alcohol, a silicon-based resin, a non-aqueous tackifying agent, an aqueous tackifying agent, a silyl-modified polyamide, a curable resin composition, a zeta potential-modifying aggregating composition, a fibrous agent, derivatives thereof, and combinations thereof. 
     
     
         20 . The method of  claim 12 , wherein the jetting fluid further comprises an additive selected from the group consisting of a clay stabilizer, a scale inhibitor, a corrosion inhibitor, a biocide, a surfactant, a gas hydrate inhibitor, any derivative thereof, and any combination thereof.