Patents by Inventor Kenneth H. Nimerick

Kenneth H. Nimerick 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).

  • Patent number: 6177385
    Abstract: A fracturing fluid and method is disclosed comprising an aqueous metal hydrated galactomannan gum, buffered to a pH of from about 9 to about 11, and using reduced amounts galactomannan gum. Further, the invention provides a metal ion source, such as borate, to crosslink the galactomannan gum polymer in subterranean fractures. In one embodiment a slowly dissolving slurried borate is used in pumping an alkaline fracturing fluid into a subterranean formation to increase production of hydrocarbons. In another embodiment, an encapsulated borate source is used. A chemical stabilizer optionally may be used.
    Type: Grant
    Filed: September 27, 1995
    Date of Patent: January 23, 2001
    Assignee: Schlumberger Technology Corporation
    Inventor: Kenneth H. Nimerick
  • Patent number: 5972850
    Abstract: The invention, in one embodiment, is a novel fracturing fluid composition comprising an aqueous metal hydrated galactomannan gum, buffered to a pH of from about 9 to about 11. In another embodiment, a method of fracturing a formation is disclosed, the method being characterized by the use of the compositions mentioned.
    Type: Grant
    Filed: March 4, 1996
    Date of Patent: October 26, 1999
    Assignee: Schlumberger Technology Corporation
    Inventor: Kenneth H. Nimerick
  • Patent number: 5877127
    Abstract: A method is provided for controlling the delay time of aqueous borate-crosslinked polysaccharide-based fluids for hydraulic fracturing and related applications which allows on-the-fly control of the delay time without comprising overall fluid integrity. Without having to modify the total boron content nor pH of the fracturing fluid, the delay time is controlled by adding a polyol to the fracturing fluid at a first rate, determining the resulting delay time and then adjusting the rate of the polyol addition to the fracturing fluid until the desired delay time is achieved.
    Type: Grant
    Filed: May 1, 1996
    Date of Patent: March 2, 1999
    Assignee: Schlumberger Technology Corporation
    Inventors: Roger John Card, Kenneth H. Nimerick, L. Jack Maberry, S. Bruce McConnell, Erik Bentley Nelson
  • Patent number: 5681796
    Abstract: The invention, in one embodiment, is a novel fracturing fluid composition comprising an aqueous metal hydrated galactomannan gum, buffered to a pH of from about 9 to about 11. In another embodiment, a method of fracturing a formation is disclosed, the method being characterized by the use of the compositions mentioned.
    Type: Grant
    Filed: July 29, 1994
    Date of Patent: October 28, 1997
    Assignee: Schlumberger Technology Corporation
    Inventor: Kenneth H. Nimerick
  • Patent number: 5259455
    Abstract: The present invention extends the temporary temperature range for the use of magnesium oxide-delayed borate-cross linking of a galactomannan gum fracturing fluid by adding fluoride ion which precipitates insoluble magnesium fluoride. Alternatively, a chelant for the magnesium ion may be added. With the precipitation of magnesium fluoride, or the chelation of the magnesium ion, insoluble magnesium hydroxide cannot form at elevated temperatures which would otherwise lower the pH and reverse the boron-crosslinking reacting. The addition effectively extends the use of such fracturing fluids to temperatures of about 275.degree. to 300.degree. F.
    Type: Grant
    Filed: May 18, 1992
    Date of Patent: November 9, 1993
    Inventors: Kenneth H. Nimerick, Curtis W. Crown, S. Bruce McConnell, Brian Ainley
  • Patent number: 5229017
    Abstract: Dewatering of coal seams for facilitating the production of gas therefrom through a well is effected by treating the coal seam utilizing a well treatment fluid containing a dewatering aid which both enhances the permeability of the formation to water production and binds tenaciously to the coal surface so that the permeability enhancement benefits are realized over a long production term. The preferred dewatering surfactants used in the treatment fluid and the process of treating the well are selected from a group consisting of:(a) organic surfactant compounds having the formulaR.sub.1 --O([EO].sub.x --[PO]Y--[BO].sub.z)Hwherein R.sub.1 is an alcohol, phenol or phenol derivative or a fatty acid having 1 to 16 carbon atoms; EO is an ethylene oxide radical and x is 1 to 20; PO is a propylene oxide radical and y is 0 to 15 and BO is a butylene oxide radical and z is 1-15;(b) an organic polyethylene carbonate having the formula ##STR1## wherein R.sub.
    Type: Grant
    Filed: March 1, 1990
    Date of Patent: July 20, 1993
    Assignee: Dowell Schlumberger Incorporated
    Inventors: Kenneth H. Nimerick, Jerald J. Hinkel
  • Patent number: 5103913
    Abstract: The high temperature stability of an aqueous fracturing fluid is extended for use in high temperature (above 300.degree. F.) subterranean formations through the addition of quantities of unhydrated, particulate guar or guar derivative polymers prior to the pumping of the fracturing fluid into the formation. Additional high temperature stability is achieved through the addition of soluble bicarbonate to the fracturing fluid and raising the pH of the fracturing fluid to about 9.2 to 10.4.
    Type: Grant
    Filed: December 12, 1990
    Date of Patent: April 14, 1992
    Assignee: Dowell Schlumberger Incorporated
    Inventors: Kenneth H. Nimerick, Curtis L. Boney
  • Patent number: 4732669
    Abstract: The froth flotation of coal is conducted in the presence of a conditioner of the condensate of naphthenic acid and an alkanolamine such as diethanolamine.
    Type: Grant
    Filed: July 21, 1986
    Date of Patent: March 22, 1988
    Assignee: The Dow Chemical Company
    Inventor: Kenneth H. Nimerick
  • Patent number: 4669544
    Abstract: A method of reducing paraffin deposits on a paraffin contaminated surface. The surface is contacted with a sulphur trioxide containing liquid to react with the paraffin, and convert at least a portion of it to a water-dispersible material. The surface is also contacted with a surfactant containing or providing liquid, so as to reduce the amount of organic precipitate formed by the action of the sulphur trioxide on the paraffin. Additionally the surface is usefully rinsed with an aqueous liquid, preferably an aqueous alkaline liquid, following it being contacted with the sulphur trioxide. The surface may be contacted with the surfactant containing liquid, either prior to, or subsequent to, contacting it with the sulphur trioxide containing fluid.
    Type: Grant
    Filed: April 17, 1986
    Date of Patent: June 2, 1987
    Assignee: Dowell Schlumberger Incorporated
    Inventor: Kenneth H. Nimerick
  • Patent number: 4501775
    Abstract: The strength of ice is reduced by dissolving in water prior to freezing a composition of (A) a water-soluble polyhydroxy compound or monoalkylether thereof and (B) a water-soluble organic nonvolatile compound having a hydrophilic group such as amine, carboxyl or carboxylate groups in an amount to provide an effective amount, e.g., on the order of about 0.25-5 weight percent, of (A) plus (B) based on the weight of water. The method is especially useful for application to particulate solids, such as coal and mineral ores, which are shipped and stored in masses exposed to freezing temperatures. Any ice that is formed is physically weak and will not deter the unloading of the thusly conditioned particulate solids.
    Type: Grant
    Filed: April 14, 1980
    Date of Patent: February 26, 1985
    Assignee: The Dow Chemical Company
    Inventors: Christ F. Parks, Kenneth H. Nimerick
  • Patent number: 4439337
    Abstract: A surface which is to be contacted with another surface, e.g., a particulate material, in the presence of moisture (water) which is subject to freezing, is coated with a composition containing water and substantially water soluble components comprising (1) a polyhydroxy compound or monoalkyl ether thereof, (2) an organic nonvolatile compound having at least one hydrophilic group, (2) being different than (1), optionally a salt which functions to lower the freezing point of water, and a sufficient quantity of an organic polymer which functions to increase the viscosity and tackiness of the composition sufficient to retain the composition on non-horizontal surfaces to freeze proof the same.
    Type: Grant
    Filed: November 20, 1981
    Date of Patent: March 27, 1984
    Assignee: The Dow Chemical Company
    Inventors: Kenneth H. Nimerick, Claude T. Copeland
  • Patent number: 4388203
    Abstract: Frozen water is thawed by applying to the surface thereof a composition containing water and substantially water soluble components comprising (1) a polyhydroxy compound or monoalkyl ether thereof, (2) an organic nonvolatile compound having at least one hydrophilic group, (2) being different than (1), (3) an inorganic salt which functions to lower the freezing point of water, wherein only one of (2) or (3) need be present but both may be present, (4) sufficient quantity of an organic polymer which functions to increase the viscosity and tackiness of the composition sufficiently to permit a uniform layer of the composition to be placed on the frozen surface and (5) H.sub.2 O.
    Type: Grant
    Filed: November 20, 1981
    Date of Patent: June 14, 1983
    Assignee: The Dow Chemical Company
    Inventors: Kenneth H. Nimerick, Claude T. Copeland
  • Patent number: 4330339
    Abstract: The title compositions exhibit superior efficacy as conditioners in the flotation of coal. These compositions are prepared by condensing diethanolamine with a C.sub.10 -C.sub.24 fatty acid in a molar ratio of 1:2 and then introducing one-half the equimolar amount, relative to the condensate, of C.sub.1 -C.sub.4 alkanoic acid.
    Type: Grant
    Filed: January 4, 1980
    Date of Patent: May 18, 1982
    Assignee: The Dow Chemical Company
    Inventor: Kenneth H. Nimerick
  • Patent number: 4117214
    Abstract: The strength of ice is reduced by dissolving in water prior to freezing a composition of (A) a water-soluble polyhydroxy compound or monoalkylether thereof and (B) a water-soluble organic nonvolatile compound having a hydrophilic group such as amine, carboxyl or carboxylate groups in an amount to provide an effective amount, e.g., on the order of about 0.25-5 weight percent, of (A) plug (B) based on the weight of water. The method is especially useful for application to particulate solids, such as coal and mineral ores, which are shipped and stored in masses exposed to freezing temperatures. Any ice that is formed is physically weak and will not deter the unloading of the thusly conditioned particulate solids.
    Type: Grant
    Filed: November 28, 1977
    Date of Patent: September 26, 1978
    Assignee: The Dow Chemical Company
    Inventors: Christ F. Parks, Kenneth H. Nimerick
  • Patent number: 4087572
    Abstract: The surface of a mass of finely divided particulate matter, e.g. the surface of a coal pile, is treated by applying to the surface a combination of an organic polymer latex and a silicone to provide a water repellant surface.
    Type: Grant
    Filed: December 26, 1973
    Date of Patent: May 2, 1978
    Assignee: The Dow Chemical Company
    Inventor: Kenneth H. Nimerick
  • Patent number: 4042529
    Abstract: A water dispersible particulate organic polymer is coated with a polyvinyl lactam-containing polymeric material to provide a particulate material which is readily dispersible in aqueous solutions with a minimum of agglomeration of the water soluble polymer.
    Type: Grant
    Filed: July 11, 1974
    Date of Patent: August 16, 1977
    Assignee: The Dow Chemical Company
    Inventors: Kenneth H. Nimerick, Benny E. Simpson
  • Patent number: 4040967
    Abstract: A water dispersible particulate organic polymer is coated with a polyvinyl lactam-containing polymeric material to provide a particulate material which is readily dispersible in aqueous solutions with a minimum of agglomeration of the water soluble polymer.
    Type: Grant
    Filed: June 27, 1975
    Date of Patent: August 9, 1977
    Assignee: The Dow Chemical Company
    Inventors: Kenneth H. Nimerick, Benny E. Simpson
  • Patent number: 4025596
    Abstract: Finely divided mineral solids are pelletized by uniformly blending the solids with a binder consisting essentially of an aqueous film forming latex of a water insoluble polymer after which the blend is shaped and dried. The binder preferably also contains a water dispersible agglutinant, such as wheat flour or bentonite.
    Type: Grant
    Filed: October 3, 1973
    Date of Patent: May 24, 1977
    Assignee: The Dow Chemical Company
    Inventors: Christ F. Parks, Kenneth H. Nimerick
  • Patent number: 4012355
    Abstract: The surface of a mass of finely divided particulate matter, e.g. the surface of a coal pile, is treated by applying to the surface a combination of an organic polymer latex and a silicone to provide a water repellant surface.
    Type: Grant
    Filed: July 23, 1975
    Date of Patent: March 15, 1977
    Assignee: The Dow Chemical Company
    Inventor: Kenneth H. Nimerick