Patents by Inventor Franciscus H. Meijs

Franciscus H. Meijs has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Installing casing with improved casing/cement bonding
    Patent number: 4716965
    Abstract: In order to prevent gas migration along the outer surface of a casing which is cemented in a well, the casing is provided with casing-surrounding sheaths of an elastomeric foam, which sheaths are able to seal-off the spacing that may be formed between the casing and the cement.
    Type: Grant
    Filed: April 8, 1986
    Date of Patent: January 5, 1988
    Assignee: Shell Oil Company
    Inventors: Gerardus M. Bol, Franciscus H. Meijs, Fredericus C. Schouten, Robert B. Stewart, Petrus C. De Roo
  • Method for automatically lubricating pipe joint
    Patent number: 4199858
    Abstract: In a well treating process in which fluid is or will be conveyed to or from a subterranean reservoir through a pipe string containing threaded pipe joints, the avoidance of reservoir permeability impairment is improved by lubricating the pipe joint threads with automatically applied pre-determined amounts of lubricant.
    Type: Grant
    Filed: January 17, 1978
    Date of Patent: April 29, 1980
    Assignee: Shell Oil Company
    Inventor: Franciscus H. Meijs
  • Process for treating wells with viscous epoxy-resin-forming solutions
    Patent number: 4168257
    Abstract: A well treating process in which a granular mass is consolidated by contacting it with an epoxy resin-forming solution that precipitates a self-curing partially-cured resin, is improved by using such a solution that contains a viscosity-increasing amount of an otherwise substantially inert oil-soluble polymer.
    Type: Grant
    Filed: June 7, 1978
    Date of Patent: September 18, 1979
    Assignee: Shell Oil Company
    Inventor: Franciscus H. Meijs
  • Process for treating wells with viscous epoxy-resin-forming solutions
    Patent number: 4113015
    Abstract: A well treating process in which a granular mass is consolidated by contacting it with an epoxy resin-forming solution that precipitates a self-curing partially-cured resin, is improved by using such a solution that contains a viscosity-increasing amount of an otherwise substantially inert oil-soluble polymer.
    Type: Grant
    Filed: November 16, 1977
    Date of Patent: September 12, 1978
    Assignee: Shell Oil Company
    Inventor: Franciscus H. Meijs
  • Method for gaseous sand consolidation treatment of weak gas sands
    Patent number: 4061191
    Abstract: In a relatively weak water-wet gas-producing reservoir in which a liquid tends to impair the gas production, the rock strength is increased by injecting a silicon polyhalide vapor, such as silicon tetrachloride vapor, mixed with a relatively inert gas, so that the silicon halide converts the rock-wetting water to a rock-strengthening silica gel.
    Type: Grant
    Filed: June 18, 1976
    Date of Patent: December 6, 1977
    Assignee: Shell Oil Company
    Inventors: Franciscus H. Meijs, David R. Davies