Colloidal and colloidal-like systems in aqueous, clay-based fluids

Patent 7199085 Issued on April 3, 2007. Estimated Expiration Date:

May 6, 2024. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Abstract Claims Description Full Text

Patent References

2818230

3900420

Explosive slurry composition containing sodium montmorillonite
Patent #: 3956040
Issued on: 05/11/1976
Inventor: Tezuka

Method for correcting lost circulation
Patent #: 4155410
Issued on: 05/22/1979
Inventor: Jackson, deceased , et al.

Preparation of biliquid foam compositions
Patent #: 4486333
Issued on: 12/04/1984
Inventor: Sebba

Microbubble generator
Patent #: 5314644
Issued on: 05/24/1994
Inventor: Michelsen, et al.

Aphron-containing well drilling and servicing fluids
Patent #: 5881826
Issued on: 03/16/1999
Inventor: Brookey

Aphron-containing well drilling and servicing fluids of enhanced stability
Patent #: 6123159
Issued on: 09/26/2000
Inventor: Brookey, et al.

Method of releasing stuck pipe or tools and spotting fluids therefor
Patent #: 6148917
Issued on: 11/21/2000
Inventor: Brookey, et al.

Aphron-containing oil base fluids and method of drilling a well therewith
Patent #: 6156708
Issued on: 12/05/2000
Inventor: Brookey, et al.

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Inventors

Assignee

Masi Technologies, Inc.

Application

No. 10842002 filed on 05/06/2004

US Classes:

507/202, Contains intended gaseous phase at entry into wellbore507/102, Contains intended gaseous phase at entry into wellbore149/41Inorganic nitrogen-oxygen salt

Examiners

Primary: Tucker, Philip

Attorney, Agent or Firm

Conley Rose P.C.

International Class

C09K 8/60

Abstract

The present invention generally relates to improved clay-based compositions comprising colloidal or colloidal-like phases (e.g., emulsions, aphrons) and methods of using those compositions. The compositions generally comprise an aqueous continuous phase, one or more palygorskite-sepiolite group clays, one or more surfactants, aphrons and optionally one or more Aphron Stabilizers. The compositions of the present invention are capable of being used in high-pressure applications.

Other References

PCT International Search Report to Application #60/444,537, PCT/US04/02947 filed Feb. 3, 2004.
PCT International Search Report to Application #60/444,508, PCT/US04/02960 filed Feb. 3, 2004.
“Drill-In Fluids Improve High Angle Well Production,” Supplement to the Petroleum Engineer International, pp. 5-11, Mar. 1995.
Sebba, Felix, “Foams and Biliquid Foams—Aphrons,” (Ch. 5, pp. 63-78), John Wiley & Sons, 1987.
Nuculai Macovei, “Hidraulica Forajului,” translation: YES, Oct. 26, 1982 pp. 444-455, Editura Tehnica, Bucuresti.
J.B. Melville and E. Matijevic, “Microbubbles: Generation and Interaction With Colloid Particles” Institute of Colloid and Surface Science and Department of Chemistry, Clarkson College of Technology, 1975 pp. 21-235, Potsdam, NY.
D. Roy, K.T. Valsarlj, and S.A. Kottai, “Separation of Organic Dyes From Wastewater by Using Colloidal Gas Aphrons” Marcel Dekker, Inc., Separation Science and Technology, 1992 pp. 573-589, 27 (5).
Tom Brookey, “Microbubbles: New Aphron Drill-in Fluid Technique Reduces Formation Damage in Horizontal Wells” ActiSystems, Inc., Society of Petroleum Engineers, Feb. 1819, 1998.
D. Roy, K.T. Valsaraj, and V.J. Amedee, “Treatability of Water-based Drilling Fluids Using Colloidal Gas Aphrons” Department of Civil Engineering and Chemical Engineering, Louisiana State University, Fluid/Particle Separation Journal, Mar. 1992 pp. 336,. vol. 5, No. 1.
Growcock, Frederick B., “Application of Water-Based and Oil-Based Aphrons in Drilling Fluids”, Society of Petroleum Engineers, © 2003, Feb. 5-7, 2003, pp. 1-7.
Darley, H.C.H., and Gray, George R., “Composition and Properties of Drilling and Completion Fluids”, © 1988, Chapter 4, pp. 140-183, Fifth Edition, Butterworth-Heinemann.
Darley, H.C.H., and Gray, George R., “Composition and Properties of Drilling and Completion Fluids”, © 1988, Chapter 9, pp. 401-409, Fifth Edition, Butterworth-Heinemann.
Darley, H.C.H., and Gray, George R., “Composition and Properties of Drilling and Completion Fluids”, © 1988, Chapter 11, pp. 542-617, Fifth Edition, Butterworth-Heinemann.