Wells – Processes – Cleaning or unloading well
Patent
1993-06-16
1995-05-30
Novosad, Stephen J.
Wells
Processes
Cleaning or unloading well
166173, 166311, E21B 3702, E21B 3706
Patent
active
054193974
ABSTRACT:
A tool for cleaning oil, gas, and water well wall casing is disclosed. The cleaning tool includes a cylindrical member and a helical swath of scratching elements affixed to the side walls of the cylindrical member positioned for scouring the interior wall of the casing. Also included in the side walls of the cylindrical member is a helical channel adjacent to the swath of scratching elements. Typically, a workstring maneuvers the tool through the casing under mechanical force. Fluid is circulated through the channel of the tool to carry to the surface the loosened debris scoured from the interior wall of the casing. A method of cleaning a well casing is also disclosed. The method includes the use of a tool with scratching elements and flow channels, which tool can be used either with or without cleaning solvents.
REFERENCES:
patent: 1342618 (1920-06-01), Bashara
patent: 1392105 (1921-09-01), Bergesen, Sr.
patent: 1598771 (1926-09-01), Gerhardt
patent: 1713895 (1929-05-01), Ford
patent: 1855046 (1932-04-01), Gerhardt
patent: 2190145 (1940-02-01), Braden
patent: 2334788 (1943-11-01), O'Leary
patent: 2392144 (1946-01-01), Hall
patent: 2447966 (1948-08-01), Stephens
patent: 2509922 (1950-05-01), Hall
patent: 2567475 (1951-09-01), Hall
patent: 2695673 (1954-11-01), Coyle
patent: 2715552 (1955-08-01), Lane
patent: 3176772 (1965-04-01), MacGregor
patent: 3541628 (1968-06-01), Girard
patent: 3827492 (1974-08-01), Hammon et al.
patent: 4164980 (1979-08-01), Duke
patent: 4345350 (1982-08-01), Burd
patent: 4427065 (1984-01-01), Watson
patent: 4438812 (1984-03-01), Hammon
patent: 4501322 (1985-02-01), Martin
patent: 4548271 (1985-10-01), Keller
patent: 4612986 (1986-09-01), Fosdick, Jr. et al.
patent: 4747452 (1988-05-01), Clark
patent: 4809779 (1989-03-01), Ledyashov et al.
patent: 4896720 (1990-01-01), DeRouen
Bowen, Sales literature entitled "Bowen Tubing Casing Scrapers" (1986-87 Composite Catalog of Oil Field Equipment and Services, p. 555, vol. 1, 37th Revision; World Oil).
OM, Sales literature entitled "OM Casing Scraper" (1986-89 Composite Catalog of Oil Field Equipment and Services, p. 5158, vol. 4, 37th Revision; World Oil).
HOMCO, Sales literature entitled "Casing Patches" (1986-87 Composite Catalog of Oil Field Equipment and Services, p. 2691, vol. 2, 87th Revision; World Oil).
Grant Oil Tool Company, Sales literature entitled "Casing Scraper Models 5500, 5600" (1986-87 Composite Catalog of Oil Field Equipment and Services, p. 2346, vol. 2, 87th Revision; World Oil).
A-Z, Sales literature entitled "Hole Opener Casing Scraper" (1986-87 Composite Catalog of Oil Field Equipment and Services, p. 157, vol. 1, 87th Revision; World Oil).
BCW, Sales literature entitled "BCW Casing Scraper" (1986-87 Composite Catalog of Oil Field Equipment and Services, p. 290, vol. 1, 87th Revision; World Oil).
PCT International Search Report, dated Oct. 28, 1994.
Reynolds J. Scott
Sloan Robert L.
Boulware Margaret A.
Novosad Stephen J.
Well-Flow Technologies, Inc.
LandOfFree
Well cleaning tool with scratching elements 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 cleaning tool with scratching elements, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Well cleaning tool with scratching elements will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-356377