Patents by Inventor Daniel Markel

Daniel Markel 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).

  • Publication number: 20070051512
    Abstract: Magnetic locator systems and methods of using same at a wellhead are described. The magnetic locator systems include a magnetic field generator on an oilfield tool component, such as a deployment bar, adapted to be moved through an oilfield pressure control component, such as a blow-out preventer, lubricator, riser pipe, or wellhead, and a magnetic field sensor located outside of the pressure control component adapted to detect the magnetic field and thus the position of the tool component in the pressure control component. The systems and methods of the invention provide safer and more efficient operation of oil and gas well pressure control systems. This abstract allows a searcher or other reader to quickly ascertain the subject matter of the disclosure. It will not be used to interpret or limit the scope or meaning of the claims. 37 CFR 1.72(b).
    Type: Application
    Filed: September 8, 2005
    Publication date: March 8, 2007
    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Daniel Markel, Rodger Anderson, Richard Luht
  • Publication number: 20070044968
    Abstract: The present invention provides a system and method of generating one or more perforations in a well casing while simultaneously restricting burr formation. The perforating gun assembly of the present invention includes a gun housing having an outer surface designed to engage the inner surface of the well casing. In one embodiment, at least a portion of the outer surface of the gun housing substantially corresponds to the inner surface of the well casing. The position of the gun housing engaging the inner surface of the well casing restricts burr formation both upon the inner surface of the well casing and the outer surface of the gun during explosive charge detonation.
    Type: Application
    Filed: August 23, 2005
    Publication date: March 1, 2007
    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Russell McKinnon, Daniel Markel, James Brooks, Gary Rytlewski
  • Publication number: 20050247450
    Abstract: Oil and gas well tools, tool components, and explosive components having a heat resistant and/or flame retardant coating are provided. Furthermore containers and packing material having a heat resistant and/or flame retardant coating for use in transporting heat and/or flame-sensitive tools, tool components, explosives, and explosive components are provided.
    Type: Application
    Filed: May 10, 2004
    Publication date: November 10, 2005
    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Wanchai Ratanasirigulchai, Daniel Markel
  • Publication number: 20050178550
    Abstract: An apparatus and method for reliably activating explosives includes providing one or more housing sections that define a sealed space. A first explosive element is provided in the sealed space, and a second explosive element has a first portion inside the sealed space, and a second portion outside the sealed space exposed to outside pressure. A gripping mechanism grips a surface of the second explosive element to maintain a position of the second explosive element that is exposed to the outside pressure in an axial direction of the second explosive element.
    Type: Application
    Filed: February 17, 2004
    Publication date: August 18, 2005
    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Daniel Markel, Larry Phillips