Patents by Inventor Marek K. Pakulski

Marek K. Pakulski 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).

  • Quaternized polyether amines as gas hydrate inhibitors
    Patent number: 6025302
    Abstract: New compositions and methods for inhibiting the formation and/or growth of gas hydrates are described. The compositions are generally polyether ammonium compounds of the formula:[R'R'R"N--(CHRCH.sub.2 (OCH.sub.2 CHR).sub.n NR'--).sub.m R'].sup.+ [X].sup.-where R=H or CH.sub.3 ;R'=H or C.sub.a H.sub.2a+1, where a=1 to 4;R"=C.sub.b H.sub.2b+1, where b=4 to 20;m=1 to 4;and n=2 to 6.The anion [X].sup.- may be freely substituted. Methods for inhibiting the formation and/or growth of gas hydrates involve treating fluid mixtures with the polyether ammonium compounds described.
    Type: Grant
    Filed: May 18, 1998
    Date of Patent: February 15, 2000
    Assignee: BJ Services Company
    Inventor: Marek K. Pakulski
  • Method for controlling gas hydrates in fluid mixtures
    Patent number: 5741758
    Abstract: A method for controlling the formation of gas hydrate crystals in a fluid mixture by admixing with said fluid mixture a polyoxyalkylenediamine in an amount effective to prevent and/or inhibit crystal growth.
    Type: Grant
    Filed: October 13, 1995
    Date of Patent: April 21, 1998
    Assignee: BJ Services Company, U.S.A.
    Inventor: Marek K. Pakulski
  • Cement mixing system
    Patent number: 5389145
    Abstract: A method for mixing cement with water is provided. Dry cement is first slurried in oil. The slurry is easily metered and mixed with water to obtain a cement/water/oil slurry having the desired density. Cement/water/oil slurries thus produced can be used in all applications and have properties, when cured, comparable to cements not containing oil. The method allows precision metering of the cement and therefore precision control over the density of the final cement slurry.
    Type: Grant
    Filed: December 29, 1993
    Date of Patent: February 14, 1995
    Assignee: The Western Company of North America
    Inventors: D. V. Satyanarayana Gupta, Marek K. Pakulski, William C. Pumphrey
  • High temperature gel stabilizer for fracturing fluids
    Patent number: 5362408
    Abstract: The present invention relates to the use of oximes as thermal decomposition reduction additive for gels used in oil field drilling fluids, fluids used as proppant carriers and fluids used during well completion and workover.
    Type: Grant
    Filed: July 14, 1992
    Date of Patent: November 8, 1994
    Assignee: The Western Company of North America
    Inventors: Marek K. Pakulski, D. V. Satyanarayana Gupta
  • Fracturing fluid having a delayed enzyme breaker
    Patent number: 5226479
    Abstract: The invention is directed toward a breaker system for breaking fluids used to fracture subterranean formations. Specifically, the invention relates to a breaker system comprised of an enzyme component and a pH component. The enzyme component is active at only certain pH levels and, at those levels, is able to break the fluid. The fluid is not initially at a pH level at which the enzyme is active. The pH component controllably adjusts the pH of the fluid to a level such that the enzyme becomes active and can break the fluid at the desired time after the formation has been fractured.
    Type: Grant
    Filed: January 9, 1992
    Date of Patent: July 13, 1993
    Assignee: The Western Company of North America
    Inventors: D. V. Satyanarayana Gupta, Marek K. Pakulski, Bethicia M. Prasek