Patents by Inventor Willem Scherpenisse

Willem Scherpenisse 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).

  • Method for determining a fluid contact level in a hydrocarbon fluid bearing formation
    Patent number: 6539795
    Abstract: A method for determining the depth (DL) of a fluid contact level between a first fluid (F1), such as water, and a second fluid (F2), such as crude oil or natural gas, within the pores of an oil and/or gas bearing formation surrounding a borehole comprises measuring the phase pressure PF1 and PF2 of said pore fluids using a pressure probe assembly which is lowered to a depth (DP) above the depth of said contact level (DL) and determining the depth of said interface on the basis of the equation: D P - D L = P F1 - P F2 g ⁡ ( ρ F1 - ρ F2 )
    Type: Grant
    Filed: August 1, 2000
    Date of Patent: April 1, 2003
    Assignee: Shell Oil Company
    Inventors: Willem Scherpenisse, Johannes Nicolaas Maria Van Wunnik