Patents Represented by Attorney Thomas R. Weaver
  • Patent number: 4470465
    Abstract: A ball valve type shut in tool having utility in gravel packing operations. The tool comprises a tubular housing having a mechanically actuated valve ball disposed therein. The ball is locked in an open or closed mode by the force of a ring spring expanding into two longitudinally spaced annular recesses in the housing. The ball is moved between an open and a closed mode by an operating sleeve comprising spring fingers which is disposed at the end of a wash pipe or production string. Insertion of the operating sleeve into the tool opens the ball; withdrawal of the operating sleeve from the tool closes the ball.
    Type: Grant
    Filed: April 22, 1983
    Date of Patent: September 11, 1984
    Assignee: Halliburton Company
    Inventors: John C. Zimmerman, William P. Bellenger
  • Patent number: 4469174
    Abstract: A combination cementing shoe and basket, comprising a substantially tubular mandrel having a cement basket disposed thereabout, the cement basket being maintained in a collapsed mode by an annular overshot at the bottom of a coupling at the top of the mandrel. A flapper valve assembly is located within the mandrel, being maintained in an open mode by the presence of a fillup tube disposed in the valve orifice. The bottom of the fillup tube is secured to a slidable ball seat located below the flapper valve assembly. The ball seat is initially secured in place by attachment through a plurality of shear rods to a tubular activating sleeve disposed around the mandrel and under the cement basket, the activating sleeve being maintained in its initial position by contact with the bottom of the cement basket, which is fixed to the mandrel by a shear screw.
    Type: Grant
    Filed: February 14, 1983
    Date of Patent: September 4, 1984
    Assignee: Halliburton Company
    Inventor: Tommie A. Freeman
  • Patent number: 4468967
    Abstract: The present invention comprises an acoustic plug release indicator system. The acoustic plug release indicator system comprises a microphone, recording system and operator listening device.
    Type: Grant
    Filed: November 3, 1982
    Date of Patent: September 4, 1984
    Assignee: Halliburton Company
    Inventor: Ernest E. Carter, Jr.
  • Patent number: 4466831
    Abstract: Rapidly dissolvable powdered silicates having a molar ratio of silicon dioxide to alkali metal oxide in the range of from about 1.5:1 to about 3.3:1 wherein the alkali metal is selected from the group consisting of sodium, potassium and mixtures thereof. Methods of using the powdered silicates and resulting solutions in connection with sealing and cementing, especially of well formations, are provided.
    Type: Grant
    Filed: September 27, 1982
    Date of Patent: August 21, 1984
    Assignee: Halliburton Company
    Inventor: Joseph R. Murphey
  • Patent number: 4466837
    Abstract: Liquid water loss reducing additives for use in cement slurries are provided comprised of aqueous solutions of low molecular weight carboxymethylhydroxyethyl-cellulose polymers. Methods of using the additives are also provided.
    Type: Grant
    Filed: December 3, 1982
    Date of Patent: August 21, 1984
    Assignee: Halliburton Company
    Inventors: Jiten Chatterji, Bobby G. Brake, John M. Tinsley
  • Patent number: 4466893
    Abstract: A composition and method of acidizing or fracturing a subterranean formation comprising contacting the formation with a composition comprising an acid, urea, and a selected gelling agent. The urea is present in an amount sufficient to extend the viscous stability of the gelled acid composition in comparison to the acid and gelling agent alone.
    Type: Grant
    Filed: April 19, 1982
    Date of Patent: August 21, 1984
    Assignee: Halliburton Company
    Inventor: Walter R. Dill
  • Patent number: 4466572
    Abstract: A fluid-jetting apparatus includes a carriage member and an actuator member which are movable relative to each other depending upon the setting of respective brakes associated with the carriage member and actuator member and the actuation of a cylinder mounted on the carriage member having a piston rod extending therefrom and being connected to the actuator member. The movement of the carriage member and the actuator member is remotely controlled by a control mechanism including a dual timer and valve circuit contained in a housing. The control mechanism causes the carriage member and the actuator member to be alternately moved in increments along a support member on which the carriage member and the actuator member are mountable. The traversing of the support member can be in either direction.
    Type: Grant
    Filed: August 30, 1982
    Date of Patent: August 21, 1984
    Assignee: Halliburton Company
    Inventor: Robert Q. Shelton
  • Patent number: 4466890
    Abstract: A liquid gel concentrate for forming a high viscosity treating fluid is provided which can be premixed and stored before being used. The concentrate is comprised of water, a hydratable polymer which yields viscosity upon hydration and an inhibitor having the property of reversibly reacting with the hydratable polymer in a manner whereby the rate of hydration of the polymer is retarded. Upon the selective reversal of the hydration inhibiting reaction the polymer is hydrated and high viscosity yielded thereby. The concentrate can be utilized directly or it can be diluted with additional water to form a large volume of high viscosity treating fluid.
    Type: Grant
    Filed: December 16, 1981
    Date of Patent: August 21, 1984
    Assignee: Halliburton Company
    Inventor: James E. Briscoe
  • Patent number: 4464270
    Abstract: An aqueous gel containing a crosslinking agent comprising an organotitanate chelate and a retarding agent which delays crosslinking of the gel. This retarding agent comprises a polyhydroxyl-containing compound. The gel is useful for fracturing and placing propping agents within a subterranean formation. The gel has a high viscosity in the formation and has pumping characteristics in turbulent flow similar to those of water.
    Type: Grant
    Filed: September 27, 1982
    Date of Patent: August 7, 1984
    Assignee: Halliburton Company
    Inventors: Keith H. Hollenbeak, Charles J. Githens
  • Patent number: 4462917
    Abstract: An aqueous gel containing a retarded crosslinking composition comprising an organotitanate chelate, polyhydroxyl-containing compound and an aqueous fluid. The gel is useful for fracturing and placing propping agents within a subterranean formation. The gel has a high viscosity in the formation and has pumping characteristics in turbulent flow similar to those of the base gel.
    Type: Grant
    Filed: September 27, 1982
    Date of Patent: July 31, 1984
    Assignee: Halliburton Company
    Inventor: Michael W. Conway
  • Patent number: 4462718
    Abstract: A particular simple method and class of organic polycationic polymer compositions are provided for treating earthen formations such as in oil wells to stabilize clay against dispersion and expansion due to water.
    Type: Grant
    Filed: May 4, 1978
    Date of Patent: July 31, 1984
    Assignee: Halliburton Company
    Inventors: Homer C. McLaughlin, Jimmie D. Weaver, Jr., Bobby E. Hall
  • Patent number: 4461644
    Abstract: A light weight cement composition made from sea water and a method of sealing a subterranean formation utilizing the light weight cement composition. The light weight cement composition comprises a hydraulic cement, a silicate compound, sea water and a hydroxide compound. The method comprises introducing the light weight cement composition into the subterranean formation.
    Type: Grant
    Filed: April 29, 1983
    Date of Patent: July 24, 1984
    Assignee: Halliburton Company
    Inventors: Jerry D. Childs, Lance E. Brothers, Joseph R. Murphey
  • Patent number: 4460627
    Abstract: Several new treatment processes and compositions for practicing these processes are provided which substantially alter the fluid flow and surface characteristics of porous permeable particulate formations, especially subterranean formations intersected by an oil well. The compositions of this invention also provide methods of increasing viscosity or gelling aqueous fluids, especially acids, which can be used to treat such earthen formations. Treatment of the earthen formations with the compositions of this invention can substantially modify the permeability and surface characteristics of the formation to prevent or reduce the flow of aqueous fluids, especially water and formation brines through that portion of the formation, thereby reducing the water-oil ratio of fluid flowing through or produced from that formation and in some cases enhancing the hydrocarbon production. The treatment of this invention uses branched organic polymers of a wide molecular weight range.
    Type: Grant
    Filed: August 25, 1982
    Date of Patent: July 17, 1984
    Assignee: Halliburton Company
    Inventors: Jimmie D. Weaver, Lawrence E. Harris, Weldon M. Harms
  • Patent number: 4460751
    Abstract: A crosslinking composition and method of preparing the crosslinking composition. The crosslinking composition comprises a zirconium compound having a valence of +4, an alpha-hydroxy acid, and an amine compound.
    Type: Grant
    Filed: August 23, 1983
    Date of Patent: July 17, 1984
    Assignee: Halliburton Company
    Inventors: David J. Hanlon, Stephen W. Almond
  • Patent number: 4460483
    Abstract: Hydrocarbon base treating fluids for stabilizing water sensitive clay containing formations against damage to flow permeability are provided. The treating fluids are comprised of a hydrocarbon external, hydrocarbon liquid-aqueous clay stabilizing polymer solution emulsion dispersed in a hydrocarbon carrier liquid. Methods of forming and using the treating fluids are also provided.
    Type: Grant
    Filed: October 9, 1981
    Date of Patent: July 17, 1984
    Assignee: Halliburton Company
    Inventor: Jimmie D. Weaver
  • Patent number: 4458752
    Abstract: A downhole tool inflatable packer assembly includes an upper packer shoe having a bypass mandrel connected thereto. A packer mandrel adapter has an upper end connected to a lower end of the bypass mandrel. A mandrel cover tube extends downwardly from the packer mandrel adapter. A packer mandrel has an upper portion connected to the packer mandrel adapter. A flow connector and a lower packer adapter are connected in that order below the packer mandrel. A packer flow tube has an upper end received in the bypass mandrel and a lower end received in the flow connector. An inflatable bladder has an upper end connected to the upper packer shoe and a lower end connected to a floating packer shoe which slidably engages the mandrel cover tube. A central flow passage, a packer bypass passage, and an inflation passage are disposed in the packer assembly.
    Type: Grant
    Filed: August 26, 1982
    Date of Patent: July 10, 1984
    Assignee: Halliburton Company
    Inventor: John T. Brandell
  • Patent number: 4458762
    Abstract: A recloseable auxiliary valve includes a cylindrical housing having a central flow passage disposed therethrough. A flapper valve is disposed in the housing and is movable between a closed position wherein the central flow passage is closed and an open position wherein the central flow passage is open. An operating mandrel is provided for operating the flapper valve upon telescoping movement of the mandrel relative to the housing. A releasable locking system is provided for locking the mandrel and the flapper valve in their open position. A time-delay system is provided to prevent premature telescopingly collapsing movement of the mandrel relative to the housing as the auxiliary valve is run into the well.
    Type: Grant
    Filed: April 21, 1982
    Date of Patent: July 10, 1984
    Assignee: Halliburton Company
    Inventor: Michael E. McMahan
  • Patent number: 4458633
    Abstract: A flameless nitrogen vaporizing unit includes a first internal combustion engine driving a nitrogen pump through a transmission. A second internal combustion engine drives three coolant circulation pumps against a variable back pressure so that a variable load may be imposed upon the second engine. Liquid nitrogen is pumped from the nitrogen pump driven by the first engine into a first heat exchanger where heat is transferred from exhaust gases from the first and second internal combustion engines to the liquid nitrogen to cause the nitrogen to be transformed into a gaseous state. The gaseous nitrogen then flows into a second heat exchanger where it is superheated by an engine coolant fluid to heat the gaseous nitrogen to essentially an ambient temperature. The superheated nitrogen is then injected into the well. The engine coolant fluid is circulated in a coolant circulation system by the coolant circulation pumps. Methods of vaporizing nitrogen are also disclosed.
    Type: Grant
    Filed: May 18, 1981
    Date of Patent: July 10, 1984
    Assignee: Halliburton Company
    Inventors: Stanley B. Loesch, deceased, by Paul A. Loesch, administrator
  • Patent number: 4457367
    Abstract: The downhole pump of the present invention includes a piston housing with a plurality of piston assemblies disposed in the piston housing. Each piston assembly includes a piston reciprocatingly disposed in a cylinder. A valve body is connected to the piston housing and includes a plurality of inlet poppet assemblies disposed therein. One of the inlet poppet assemblies is located below and communicated with each of the cylinders for controlling a fluid intake to the cylinders. A plurality of outlet poppet assemblies is also disposed in the valve body. One of the outlet poppet assemblies is located below and communicates with each of the cylinders for controlling a fluid discharge from the cylinders. A master outlet check valve assembly is located below and communicates with all of the outlet poppet assemblies for preventing discharge fluid from flowing back to the outlet poppet assemblies.
    Type: Grant
    Filed: August 26, 1982
    Date of Patent: July 3, 1984
    Assignee: Halliburton Company
    Inventor: John T. Brandell
  • Patent number: 4457377
    Abstract: A float collar for use in inner string cementing operations for well casing where it is desired to open or close the float collar to control the fluids in the casing and on the exterior of the casing. The float collar comprises a float valve collar having a sliding type valve assembly located therein which is capable of being actuated as desired during the inner string well casing cementing operations.
    Type: Grant
    Filed: September 3, 1982
    Date of Patent: July 3, 1984
    Assignee: Halliburton Company
    Inventor: Wesley J. Burris, II