Refrigeration – Cryogenic treatment of gas or gas mixture – Separation of gas mixture
Reexamination Certificate
2005-06-28
2005-06-28
Doerrler, William C. (Department: 3744)
Refrigeration
Cryogenic treatment of gas or gas mixture
Separation of gas mixture
C062S911000, C202S083000
Reexamination Certificate
active
06910350
ABSTRACT:
A portable cryogenic nitrogen generator consists of an air preparation unit and a cryogenic distillation unit mounted inside separate standard-sized ISO containers that can be easily shipped to a drilling site and efficiently and quickly assembled into an operative state. The containers can be connected together at anchor points on the housings of both containers, making the nitrogen generator assembly more stable. The air preparation unit includes an absorption device and optionally includes one or a plurality of air compressor units. The cryogenic distillation unit includes a distillation column and associated heat exchangers. The air preparation and cryogenic distillation units connect through apertures in their respective containers and operate while being mounted in the containers.
REFERENCES:
patent: 4899827 (1990-02-01), Poole
patent: 5121600 (1992-06-01), Sanders et al.
patent: 5349827 (1994-09-01), Bracque et al.
patent: 5388650 (1995-02-01), Michael
patent: 5461871 (1995-10-01), Bracque et al.
patent: 5896755 (1999-04-01), Wong et al.
patent: 6041873 (2000-03-01), Michael
patent: 6128921 (2000-10-01), Guillard et al.
patent: 6272883 (2001-08-01), Bruder et al.
patent: 6443245 (2002-09-01), Michael
patent: 2003/0089126 (2003-05-01), Stringer et al.
“PanCanadian tries coiled-tubing completion. (PanCanadian Petroleum Ltd. executes portion of directional drilling project with coiled tubing)”, Improved Recovery Week, v2, n7, p1 (2), Feb. 22, 1993.
Gunn, John, “Damage control: underbalanced drilling is moving to the top of the toolbox. (oil and gas well drilling)”, Oilweek, v45, n12, p 20 (1), Mar. 21, 1994.
“PrismAlpha Membrane Seperators—For Low-Cost On-Site Nitrogen.” Permea Inc., A Monsanto Company, 1987, pp. 1-8.
Dr. sc. Techn. T. Johannessen “Presentation of a 6000 Nm3/h Nitrogen System based on Membrane Separation of Air”, Swiss Chem, 9 (1987).
“Nitrogen Generating Systems” from Zwick Energy Research.
“Prismmembrane nitrogen systems . . . for safe and economic offshore operations.” Permea Maritime.
P.D. Allan, Meridian Oil, Inc. “Nitrogen Drilling System for Gas Drilling Applications,” Society of Petroleum Engineers, Inc. 59thAnnual Technical Conference and Exhibition held in New Orleans, LA, U.S.A. Sep. 25-28, 1994, pp. 1-5.
Thistle, Bruse and Falk, Kelly: “Horizontal Drilling of a Low Pressure Fractured Shale Reservoir with Crude Oil and Nitrogen” from CADE/CAODC Spring Drilling Conference, Apr. 14, 15, 16, 1993, Calgary, Alberta, Canada. Paper No. 93-1103, 18 pages.
“Petroleum Products” from Stewart & Stevenson Annual Report 1991. pp. 16-17.
“Feasibility Study: Ekofist Nitrogen Production Vessel”, Nov. 1985.
“Underbalanced Well Operations” from Nowsco Engineering Technology Update.
“Under-Balanced Drilling Options” by Nowsco Well Service Ltd.
“High Tech Nitrogen Pumper Is Developed” The American Oil & Gas Reporter, Jul. 1991, pp. 58-59.
Laboratory Services for Advanced Catalyst Systems, LLC, www.advancedcatalyst.com, site visited Oct. 14, 2002.
“BOC Gases source of information of the Heat Treat industry” from CATweb, www.b2.boc.com/catweb, site visited Nov. 4, 2002.
Product information on 40′×9′6″ Dry Freight ISO Containers, www.seabox.com, site visited Aug. 7, 2002.
Sea Box, Inc. Product Catalog SB-1 “Family of Standard Military ISO Cargo Containers”.
Sea Box, Inc. Product Catalog SB-2 “Rare/Special Military ISO Containers, Chassis and Generator Sets”.
Sea Box, Inc. Product Catalog SB-5 “Family of Intermodal Internal ISO Container Designs”.
Sea Box, Inc. Product Catalog “Integrated ISO Container Systems”.
PCT International Search Report dated Jul. 6, 2004 for Int'l Application No. PCT/US03/25802, filed Aug. 8, 2003.
Brigham William D.
Wildey Brian R.
Zarate Robert A.
Doerrler William C.
Knobbe Martens Olson & Bear LLP
Pacific Consolidated Industries, LLC
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