Compositions containing water control treatments and formation damage control additives, and methods for their use

• US 20060065396A1
• Filed: 08/09/2005
• Published: 03/30/2006
• Est. Priority Date: 08/13/2004
• Status: Abandoned Application

• Current Assignee: Baker Hughes, a GE Company, LLC (Baker Hughes Company)
• Original Assignee: Baker Hughes, a GE Company, LLC (Baker Hughes Company)
• Inventors: Qu, Qi, Dawson, Jeffrey C., Javora, Paul H., Kalfayan, Leonard J., Kirk, Joseph W., Vorderbruggen, Mark
• Application Number:
  US11/199,378
• Publication Number:
  US 20060065396A1
• Time in Patent Office: Days
• US Class Current: 166/279
• CPC Class Codes: C09K 2208/22 Hydrates inhibition by using well treatment fluids containing inhibitors of hydrate formers
• CPC Class Codes: C09K 8/508 macromolecular compounds C09K8/512 takes precedence
• CPC Class Codes: C09K 8/512 containing cross-linking agents
• CPC Class Codes: C09K 8/52 Compositions for preventing, limiting or eliminating depositions, e.g. for cleaning

Abstract

The present invention relates to compositions of aqueous compositions comprising relative permeability modifier (RPM) macromolecules and one or more formation damage control additives, for use in treating hydrocarbon-producing wells, formations, and equipment, as well as methods for the use of such compositions. Such compositions, comprising the RPM macromolecule and the one or more formation damage control additive, such as a scale control agent, can result in the formation of a composition wherein the components exhibit a “synergistic” effect, whereby the ability of the formation damage control additive to prevent formation damage is enhanced relative to the use of the same additive separately.

Claims

1. An aqueous treating composition comprising:

a relative permeability modifier (RPM) macromolecule; and

at least one formation damage control additive.

2. The aqueous treating composition of claim 1, wherein the RPM macromolecule is crosslinked.

3. The composition of claim 2, wherein the RPM macromolecule is a crosslinked microgel.

4. The composition of claim 3, wherein the microgel is crosslinked in an amount from about 0.25 wt. % to about 2.5 wt. %, based on the weight of the microgel.

5. The composition of claim 1, wherein the RPM macromolecule is ionic or non-ionic.

6. The composition of claim 1, wherein the RPM macromolecule has a K value from about 200 to about 1,000.

7. The composition of claim 1, wherein the RPM macromolecule has a weight average molecular weight from about 10,000 g/mol to about 50,000,000 g/mol.

8. The composition of claim 1, wherein the concentration of the RPM macromolecule in the composition is from about 100 ppm to about 5,000 ppm.

9. The composition of claim 1, wherein the at least one formation damage control additive is selected from the group comprising scale control agents, salt control agents, fines control agents, organic deposit control agents, hydrate control agents, corrosion control agents and mixtures thereof.

10. The composition of claim 1, wherein the at least one formation damage control additive is present in a concentration from about 1 ppm to about 1,000 ppm.

11. The composition of claim 1, further comprising one or more salts selected from the group consisting of alkali metal salts, alkali earth salts, formate salts, bicarbonate salts, chloride salts, bromide salts, sulfate salts and acetate salts.

12. The composition of claim 1, further comprising an aqueous acid selected from the group consisting of hydrochloric, hydrobromic, acetic, formic, citric, glycolic, gluconic, and hydrofluoric acid, and/or mixtures thereof.

13. The composition of claim 1, wherein the RPM macromolecule solution comprises an organosilicon compound.

14. The composition of claim 1, wherein the RPM macromolecule and the at least one formation damage control additive are synergistic.

15. The composition of claim 9, wherein the at least one formation damage control additive is a scale control agent.

16. The composition of claim 15, wherein the scale control agent is a phosphonate, phosphinate, phosphate, polyphosphonate, polyphosphinate, polyphosphate, or a phosphinocarboxylic acid or its polymers.

17. A method for controlling formation damage in a hydrocarbon-producing formation susceptible to formation damage, the method comprising introducing the composition of claim 1 into the hydrocarbon-producing formation.

18. The method of claim 17, wherein the RPM macromolecule is a crosslinked, deformable microgel.

19. The method of claim 17, wherein the concentration of the active components in the aqueous phase of the treating composition introduced into the hydrocarbon-producing formation is from about 0.01 to about 70 vol. %.

20. The method of claim 17, wherein the aqueous treating composition further comprises brine.

21. The method of claim 17, wherein the weight ratio of RPM macromolecule to formation damage control additive is between from about 200:

1 to about 1;

200.

22. The composition of claim 1, further comprising a hydrocarbon phase and an aqueous phase.

23. The composition of claim 22, wherein the at least one formation damage control additive is an organic deposit control agent.

24. The method of claim 17, wherein the composition further comprises a hydrocarbon phase and an aqueous phase.

25. The method of claim 24, wherein the at least one formation damage control additive is an organic deposit control agent.