TRACER RELEASE IN STIMULATED GAS WELLS USING PARTIALLY DEGRADABLE THERMOPLASTIC POLYAMIDE PARTICULATES

1 . A method for monitoring gas production in a subterranean formation comprising:

introducing a polymer composite particle having a degradable polymer blend into a stimulation fluid, wherein the degradable polymer blend comprises a polymer blend of a degradable polymer and a color masterbatch,

wherein the color masterbatch is a blend of a carrier resin and a colorant, and wherein the carrier resin is selected from the group consisting of polyethylene, polystyrene, and combinations thereof;

injecting the stimulation fluid comprising the polymer composite particle into the subterranean formation to a treatment stage of a treatment zone comprising at least one opening, wherein the polymer composite particle flows into and remain inside the at least one opening;

maintaining the polymer composite particle inside the at least one opening for an amount of time during which the polymer composite particle is exposed to moisture at a downhole temperature, wherein the moisture degrades the degradable polymer blend in the amount of time ranging from 20 to 60 days thereby producing a tracer;

recovering produced gas from the subterranean formation, wherein the produced gas comprises a gaseous phase from the treatment stage of the treatment zone of the subterranean formation and the tracer;

determining a presence of the tracer in the produced gas; and

correlating the presence of the tracer to the treatment stage of the treatment zone of the subterranean formation.

2 . The method of claim 1 , wherein the degradable polymer comprises a polyamide.

3 . The method of claim 1 , wherein degradable polymer has hydrolysable bonds.

4 . (canceled)

5 . (canceled)

6 . The method of claim 1 , wherein the color masterbatch is present in the degradable polymer blend in an amount ranging from 0.005 to 50 wt %.

7 . The method of claim 1 , wherein the stimulation fluid is selected from the group consisting of an acidizing fluid, an organic acid, a fracturing fluid, a hydraulic fracturing fluid, an emulsified acid, a viscoelastic surfactant, a foamed fluid, a linear gel, a crosslinked gel, and combinations thereof.

8 . The method of claim 1 , wherein the polymer composite particle is introduced into the stimulation fluid in an amount ranging from 0.2 to 10 lbm/gal of the polymer composite particles relative to a total amount of stimulation fluid.

9 . A composition comprising:

a polymer composite particle comprising:

a degradable polymer blend of a degradable polymer and a color masterbatch; and

stimulation fluid.

10 . The composition of claim 9 , wherein the degradable polymer comprises a polyamide.

11 . The composition of claim 9 , wherein the degradable polymer has hydrolysable bonds.

12 . The composition of claim 9 , wherein the color masterbatch is a blend of a carrier resin and a colorant.

13 . The composition of claim 12 , wherein the carrier resin is selected from the group consisting of polyethylene, polystyrene, and combinations thereof.

14 . The composition of claim 12 , wherein the colorant is a tracer.

15 . A method comprising:

blending a degradable polymer with a color masterbatch to provide a degradable polymer blend in a polymer composite particle; and

introducing the polymer composite particle into a stimulation fluid.

16 . The method of claim 15 , wherein the degradable polymer comprises a polyamide.

17 . The method of claim 15 , wherein the degradable polymer has hydrolysable bonds.

18 . The method of claim 15 , wherein the color masterbatch is a blend of a carrier resin and a colorant.

19 . The method of claim 15 , wherein the color masterbatch is present in the degradable polymer blend in an amount ranging from 0.005 to 50 wt %.

20 . The method of claim 15 , wherein the degradable polymer is present in the polymer composite particle in an amount of 50 to 99.995 wt %.