Brick Or Cement Casing Liner Patents (Class 166/242.9)
  • Publication number: 20140238665
    Abstract: A method for manufacturing stable lightweight cement slurry in a continuous manner for downhole injection comprising the steps of manufacturing a foamed gas having desired density ranging from about 2.15 to about 2.35 lb/cubic ft. and utilizing foam stabilizing nonionic surfactant. And, an apparatus for carrying out the method.
    Type: Application
    Filed: February 25, 2013
    Publication date: August 28, 2014
    Inventor: Charles D. Welker
  • Publication number: 20130180717
    Abstract: A method of preparing a concrete composition for downhole injection includes utilizing a controller to control a process including circulating process water in a process water supply loop for a predetermined period while monitoring and controlling the temperature and flow rate of the process water, circulating aqueous-based air entrainment solution in an aqueous-based air entrainment solution supply loop for the predetermined period and controlling the flow rate of the aqueous-based air entrainment solution and after the predetermined period of time in which the flow of process water and aqueous-based air entrainment solution have stabilized, simultaneously actuating valves to divert and mix the process water, the aqueous-based air entrainment solution and compressed air to produce an air-entrained foam and mixing the foam with a concrete composition to be deployed downhole.
    Type: Application
    Filed: March 5, 2013
    Publication date: July 18, 2013
    Inventors: Charles D. Welker, Norman Scott Smith
  • Publication number: 20080289826
    Abstract: A method of primary cementing well is provided utilizing a cement and cement activator cementing composition, in which one of the components is first placed in the annulus of the well. Next, the other component is placed in the annulus above the first placed component. Densities of the components have been selected such that the density of the second placed component is sufficiently higher then the density of the first placed component to facilitate gravity mixing of the two components as the second placed component moves through the first placed component and in the process activation occurs.
    Type: Application
    Filed: December 12, 2007
    Publication date: November 27, 2008
  • Patent number: 7428933
    Abstract: Methods and systems for conducting liner drilling and subsequent completion of the drilled section by cementing and anchoring the liner into place. The methods and systems prevent the liner from being cemented in in a bent or corkscrewed configuration. Additionally, there are no exterior components associated with the liner during drilling so as to allow relatively unrestricted return of drilling mud and cuttings.
    Type: Grant
    Filed: July 19, 2006
    Date of Patent: September 30, 2008
    Assignee: Baker Hughes Incorporated
    Inventors: Troy A. Miller, George Givens, Morten Myhre
  • Patent number: 6267181
    Abstract: In one embodiment, the invention relates to a method or process, useful in cementing a well, especially a hydrocarbon well, which is characterized by the use of increased external and internal diameter liners, the method being characterized by provision and use of a novel liner and liner-tool assembly. Novel liner apparatus, a liner-tool assembly, and a fluid circulating tool are also disclosed.
    Type: Grant
    Filed: March 17, 2000
    Date of Patent: July 31, 2001
    Assignee: Schlumberger Technology Corporation
    Inventors: Erik Rhein-Knudsen, Claude J. Vercaemer, Laurent P. Prouvost, Arthur W. Milne, Jean-Louis Pessin