DR. WILLIAM HENRY SMITH, DPH
Pharmacy at Sheridan Rd, Lawton, OK
License number
Oklahoma 11731
Category
Pharmacy
Type
Pharmacist
Address
Address
2
205 SW Sheridan Rd, Lawton, OK 73505
PO Box 212, Walters, OK 73572
PO Box 212, Walters, OK 73572
Phone
(580) 248-0300
(580) 585-6513 (Fax)
(580) 875-2859
(580) 585-6513 (Fax)
(580) 875-2859
Professional information
Pressure Pulse Gelation Test Apparatus And Method
US Patent:
4691558, Sep 8, 1987
Filed:
Jun 19, 1986
Appl. No.:
6/876969
Inventors:
Edward F. Vinson - Duncan OK
William H. Smith - Walters OK
William H. Smith - Walters OK
Assignee:
Halliburton Company - Duncan OK
International Classification:
G01N 1100
US Classification:
73 641
Abstract:
The gelation testing apparatus includes a closed fluid circuit in which a sample of the substance to be tested is contained. A pressurizing device, such as a pump, is connected into the closed fluid circuit so that the pressure within the closed circuit can be changed. A pressure detecting device, such as a differential pressure transducer, is connected into the closed fluid circuit for detecting a pressure differential across the sample in response to the operation of the pressurizing device. Through the pressurizing device, the system pressure can be subjected to oscillating pressure pulses. The apparatus also can have the ability to control the temperature of the sample. This apparatus is used by placing the sample in the closed fluid circuit, creating a pressure pulse within the closed fluid circuit on one side of the sample, and detecting whether the pressure pulse is transmitted across the sample. This can be performed under controlled pressure and temperature conditions.
Method Of Breaking Metal-Crosslinked Polymers
US Patent:
5224546, Jul 6, 1993
Filed:
Jul 20, 1992
Appl. No.:
7/917688
Inventors:
William H. Smith - Walters OK
Jimmie D. Weaver - Duncan OK
Jimmie D. Weaver - Duncan OK
International Classification:
E21B 4326
US Classification:
166300
Abstract:
A new method is provided for improved degradation of metal-crosslinked polymer gels which are useful in oil and gas well treating operations. In this method an esterified carboxylated chelator is added to the gel. At elevated temperatures, the esterified chelator undergoes hydrolysis to form an acid and an active ligand which subsequently removes the crosslinking metal ion from the gel and hydrolyses the polymer.
Method For Treating A Well Bore
US Patent:
4946604, Aug 7, 1990
Filed:
Nov 23, 1988
Appl. No.:
7/276189
Inventors:
William H. Smith - Walters OK
Assignee:
Halliburton Company - Duncan OK
International Classification:
E21B 4326, E21B 3313, E21B 43267
US Classification:
252 8551
Abstract:
The present invention relates to a method for treating a well bore and the surrounding subterranean formation. A non-reducing sugar is admixed with a polysaccharide polymer and crosslinking agent in aqueous liquids to subsequently initiate viscosity reduction of the crosslinked polymer. The non-reducing sugar provides a means for obtaining time-controlled viscosity reduction at formation temperatures.
Thermally Responsive Aqueous Silicate Mixtures And Use Thereof
US Patent:
4640361, Feb 3, 1987
Filed:
Dec 13, 1985
Appl. No.:
6/808576
Inventors:
William H. Smith - Walters OK
Edward F. Vinson - Duncan OK
Edward F. Vinson - Duncan OK
Assignee:
Halliburton Company - Duncan OK
International Classification:
E21B 33138
US Classification:
166288
Abstract:
A thermally responsive aqueous silicate composition consisting essentially of an aqueous solution containing an alkali metal silicate and a thermally responsive silicate gelation activator. The thermally responsive silicate gelation activator is a reducing sugar selected from the group consisting of lactose, dextrose, fructose, galactose, mannose, maltose, xylose and mixtures thereof. The aqueous silicate composition can be utilized in treating a subterranean formation for the purpose of sealing the formation.
Delayed Breaking Metal Crosslinked Polymer Compositions
US Patent:
5223159, Jun 29, 1993
Filed:
Jan 9, 1992
Appl. No.:
7/819154
Inventors:
William H. Smith - Walters OK
Jimmie D. Weaver - Duncan OK
Jimmie D. Weaver - Duncan OK
International Classification:
E21B 4326
US Classification:
252 8551
Abstract:
A new method is provided for improved degradation of metal-crosslinked polymer gels which are useful in oil and gas well treating operations. In this method an esterified carboxylated chelator is added to the gel. At elevated temperatures, the esterified chelator undergoes hydrolysis to form an acid and an active ligand which subsequently removes the crosslinking metal ion from the gel and hydrolyses the polymer.