Jeffrey P Hawkins

US Patent:

6671389, Dec 30, 2003

Filed:

Apr 27, 2000

Appl. No.:

09/561259

Inventors:

Rex E. Marzke - Houston TX
Jeffrey J. Hawkins - Raleigh NC

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

G06K 900

US Classification:

382101, 382235

Abstract:

A system for detecting a digital camera failure captures an image with the digital camera. The system compresses the image into a compressed image file and compares the size of the compressed image file with a predetermined file size. A digital camera failure is indicated if the size of the compressed image file is greater than a predetermined upper limit file size or less than a predetermined lower file size limit. The system may also compare the number of pixels of a predetermined color with the total number of pixels of the captured image. A digital camera failure is indicated if the number of pixels of the predetermined color is greater than a predetermined percentage of the total number of pixels of the captured image.

US Patent:

45400490, Sep 10, 1985

Filed:

Aug 8, 1984

Appl. No.:

6/638918

Inventors:

Jeffrey T. Hawkins - Houston TX
Zean Z. Gassmann - Houston TX

Assignee:

Texaco Inc. - White Plains NY

International Classification:

E21B 4322
E21B 4324

US Classification:

166272

Abstract:

The disclosed invention is a group of novel steam foaming agents for injection with steam to decrease permeability in steam sept zones. They are effective without the coinjection on a non-condensable gas. The foaming agents have the general formula: RO(R'O). sub. n R"SO. sub. 3 M where R is an alkyl radical, branched or linear, having from about 15 to about 21 carbon atoms in the alkyl chain, R' is ethyl or propyl, n has an average value of about 2 to about 5, R" is ethyl, propyl, hydroxypropyl or butyl and M is an alkali metal or ammonium ion.

US Patent:

46374663, Jan 20, 1987

Filed:

Apr 3, 1986

Appl. No.:

6/848006

Inventors:

Jeffrey T. Hawkins - Houston TX
Vernon H. Schievelbein - Houston TX

Assignee:

Texaco Inc. - White Plains NY

International Classification:

E21B 4322
E21B 4324

US Classification:

166272

Abstract:

The disclosed invention is a group of steam foaming agents for injection with steam and a non-condensable gas to decrease permeability in steam swept zones and increase oil recovery. The foaming agents have the general formula: RO(R'O). sub. n R"CO. sub. 2 M where R is an alkyl radical, branched or linear, having from about 8 to about 24 carbon atoms in the alkyl chain, R' is ethylene, propylene or a mixture of ethylene and propylene, n has an average value of about 3 to about 11, R" is methylene or ethylene, and M is an alkali metal or ammonium ion.

US Patent:

45400504, Sep 10, 1985

Filed:

Aug 8, 1984

Appl. No.:

6/638919

Inventors:

Zean Z. Gassmann - Houston TX
Jeffrey T. Hawkins - Houston TX
Vernon H. Schievelbein - Houston TX
Wilbur L. Hall - Bellaire TX

Assignee:

Texaco Inc. - White Plains NY

International Classification:

E21B 4322
E21B 4324

US Classification:

166272

Abstract:

The disclosed invention is a group of steam foaming agents for injection with steam and a non-condensable gas to decrease permeability in steam swept zones and increase oil recovery. The foaming agents have the general formula: RO(R'O). sub. n R"SO. sub. 3 M where R is an alkyl radical, branched or linear, or an alkylbenzene, alkyltoluene or alkylxylene group, having from about 8 to about 24 carbon atoms in the alkyl chain, R' is ethyl, propyl or a mixture of ethyl and propyl, n has an average value of about 1 to about 20, R" is ethyl, propyl, hydroxypropyl or butyl and M is an alkali metal or ammonium ion.

US Patent:

45776881, Mar 25, 1986

Filed:

Aug 8, 1984

Appl. No.:

6/638920

Inventors:

Zean Z. Gassmann - Houston TX
Jeffrey T. Hawkins - Houston TX
Alfred Brown - Houston TX

Assignee:

Texaco Inc. - White Plains NY

International Classification:

E21B 4324
E21B 4330

US Classification:

166245

Abstract:

The disclosed invention is a method of injecting steam foaming agents in conjunction with steam and usually, a non-condensable gas into production wells producing a substantially high water to oil ratio. The most preferred production wells for foaming agent injection are corner production wells of flooding patterns such as inverted 5- and 9-spots, especially when the flooding pattern contains infill wells between the central injection well and the corner production wells. Although the method of injecting foaming agent, steam and usually, a non-condensable gas is effective with any foaming agent, the method works particularly well with foaming agents of the general formula: RO(R'O). sub. n R"SO. sub. 3 M where R is an alkyl radical, branched or linear, or an alkylaryl radical such as an alkylbenzene, alkyltoluene or alkylxylene group, having from about 8 to about 24 carbon atoms, R' is ethyl, propyl or a mixture of ethyl and propyl, n has an average value of about 1 to about 20, R" is ethyl, propyl, hydroxypropyl or butyl and M is an alkali metal or ammonium ion.

US Patent:

48009571, Jan 31, 1989

Filed:

Jul 30, 1987

Appl. No.:

7/079385

Inventors:

James F. Stevens - Houston TX
Jeffrey T. Hawkins - Ponca City OK

Assignee:

Texaco Inc. - White Plains NY

International Classification:

E21B 4322

US Classification:

166268

Abstract:

The invention is a method of recovering hydrocarbons from underground hydrcarbon formations by injecting a mixture of carbon dioxide and a polar alcohol or polar glycol additive, said additive having less than about 9 carbon atoms. The mixture of carbon dioxide and additive is injected at a temperature and pressure above the critical temperature and pressure of carbon dioxide. The alcohol or glycol additive comprises about 0. 1% to about 10% by weight of the injected mixture. After being injected through an injection well, the mixture is driven through the formation and the hydrocarbons and other fluids are recovered at one or more production wells.