Earth boring – well treating – and oil field chemistry – Well treating – Contains organic component
Reexamination Certificate
2008-04-01
2008-04-01
Gulakowski, Randy (Department: 1796)
Earth boring, well treating, and oil field chemistry
Well treating
Contains organic component
C507S117000, C507S140000, C507S269000
Reexamination Certificate
active
10780314
ABSTRACT:
Well bore servicing fluids are provided that include a thermally activated viscosification compound. Further, methods of servicing a well bore are provided that include displacing such a servicing fluid into the well bore, wherein a viscosity of the servicing fluid increases as it passes down the well bore due to its temperature increasing. Thus, the viscosity of the servicing fluid is effective to suspend solids therein when the servicing fluid is in the well bore. The servicing fluid may be, for example, a cement slurry, a drilling fluid, a gravel packing fluid, a fracturing fluid, a completion fluid, or a work-over fluid. In an embodiment, the thermally activated viscosification compound includes at least one water-soluble hydrophobically modified polymer comprising a hydrophobic substituent having from about 1 to about 22 carbon atoms.
REFERENCES:
patent: 2281810 (1942-05-01), Stone et al.
patent: 3202214 (1965-08-01), McLaughlin, Jr.
patent: 3241612 (1966-03-01), Hiller
patent: 3375872 (1968-04-01), McLaughlin et al.
patent: 4210214 (1980-07-01), Blanton
patent: 4293440 (1981-10-01), Elphingstone et al.
patent: 4552215 (1985-11-01), Almond et al.
patent: 4553601 (1985-11-01), Almond et al.
patent: 4640361 (1987-02-01), Smith et al.
patent: 4814096 (1989-03-01), Evani
patent: 4997487 (1991-03-01), Vinson et al.
patent: 5104954 (1992-04-01), Mueller
patent: 5135577 (1992-08-01), Brothers
patent: 5192461 (1993-03-01), Tomaszewski et al.
patent: 5432245 (1995-07-01), Roberts et al.
patent: 5558161 (1996-09-01), Vitthal et al.
patent: 5913364 (1999-06-01), Sweatman
patent: 5939485 (1999-08-01), Bromberg et al.
patent: 5945387 (1999-08-01), Chatterji et al.
patent: 5968879 (1999-10-01), Onan et al.
patent: 6059036 (2000-05-01), Chatterji et al.
patent: 6060434 (2000-05-01), Sweatman et al.
patent: 6167967 (2001-01-01), Sweatman
patent: 6169058 (2001-01-01), Le et al.
patent: 6194356 (2001-02-01), Jones et al.
patent: 6258757 (2001-07-01), Sweatman et al.
patent: 6444316 (2002-09-01), Reddy et al.
patent: 6527051 (2003-03-01), Reddy et al.
patent: 6554071 (2003-04-01), Reddy et al.
patent: 6660694 (2003-12-01), Taylor et al.
patent: 2005/0075249 (2005-04-01), Reddy et al.
patent: 1 178 099 (2002-02-01), None
patent: WO 97/00275 (1997-01-01), None
patent: WO 00/73623 (2000-12-01), None
Paper entitled “Thermoreversible Hydrogel of Short-Chain 0- (2, 3 Dihydroxypropyl) cellulose/Borax Aqueous Solution, Microscopic versus. Macroscopic Properties” by Nobuhiro Ide et al., dated Apr. 1998.
Paper entitled “Designing new thermoreversible gels by molecular tailoring of hydrophilic-hydrophobic interactions” by S. Varghese et al., dated Oct. 1999.
Paper entitled “Ca2+-induced Thermoreversible and Controllable Complexation of Poly (N-vinylcaprolactam-co-sodium acrylate) Microgels in Water” by Shufu Peng et al., dated Nov. 2000.
Paper entitled “Phase Diagrams of Nonionic Polymer-Water Systems. Experimental And Theoretical Studies of the Effects of Surfactants and Other Cosolutes”, by Gunnar Karlström et al., dated 1990.
Paper entitled “Ethyl (hydroxyethyl) cellulose-Cationic Surfactant Interactions: Electrical Conductivity, Self-Diffusion, and Time-Resolved Fluorescence Quenching Investigations”, by R. Zana et al., dated 1992.
Paper entitled “Characterization of the Interaction between a Nonionic Polymer and a Cationic Surfactant by the Fourier Transform NMR Self-Diffusion Technique”, by Anders Carlsson et al, dated 1989.
Paper entitled “Thermal Gelation of Nonionic Cellulose Ethers and Ionic Surfactants in Water”, by Anders Carlsson et al., dated 1990.
Paper entitled “Interaction between ethyl (hydroxyethyl) cellulose and sodium dodecyl sulphate in aqueous solution”, by A. Carlsson et al., dated 1988.
Paper entitled “Polymer-Surfactant Interactions. Binding of N-. Tetradecylpridinium Bromide to Ethyl (hydroxethyl) cellulose”, by Anders Carlsson et al., dated 1989.
Paper entitled “Association and Thermal Gelation in Mixtures of Hydrophobically Modified Polyelectrolytes and Nonionic Surfactants”, by Anne Sarrazin-Cartlas et al., dated 1994.
Foreign communication from a related counterpart application dated Apr. 19, 2005.
Koch Ronney R.
Reddy B. Raghava
Robb Ian D.
Sandy Joe M.
Zamora Frank
Conley & Rose, P.C.
Gulakowski Randy
Halliburton Energy Service,s Inc.
Kugel Timothy J.
Roddy Craig W.
LandOfFree
Well bore servicing fluids comprising thermally activated... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Well bore servicing fluids comprising thermally activated..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Well bore servicing fluids comprising thermally activated... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3948495