Ronald A Reed

US Patent:

48280321, May 9, 1989

Filed:

Dec 7, 1988

Appl. No.:

7/282923

Inventors:

Gary F. Teletzke - Sugarland TX
Thomas L. Ashcraft - Baytown TX
Ronald L. Reed - Houston TX

Assignee:

Exxon Production Research Company - Houston TX

International Classification:

E21B 4322
E21B 4324

US Classification:

166272

Abstract:

A method for recovering oil from a subterranean formation is disclosed wherein an aqueous surfactant solution is injected into the formation to reduce the mobility of gas in a gas-flooding process. The gas may include hydrocarbon gas, inert gas, carbon dioxide, and steam. The surfactant is represented by the general formula ##STR1## where R is a linear or branched chain alkyl group with n carbon atoms wherein n ranges from 0 to about 18, except that if the gas is steam n ranges from about 9 to about 30; x ranges from 0 to about 20 and y ranges from 0 to about 20, provided x+y does not exceed about 20; R' is a linear or branched chain alkyl group with m carbon atoms wherein m ranges from 0 to 4, except that if the gas is steam m ranges from 1 to 4, with the proviso that the sum of x+y+m is at least one; and each M. sup. + is a cation.

US Patent:

49649485, Oct 23, 1990

Filed:

Nov 13, 1989

Appl. No.:

7/435703

Inventors:

Ronald G. Reed - Monument CO

Assignee:

ProtoCAD, Inc. - Colorado SPrings CO

International Classification:

B44C 122
C23F 102
C03C 1500
C03C 2506

US Classification:

1566591

Abstract:

A process of forming plated through-holes in a printed circuit board involves placing a film of fluid ink having electrically conductive properties on a side wall of the hole, curing the film to a solid and electroplating a layer of metal on the conductive ink film. The conductive ink preferably is a composition including conductive particles such as carbon and silver flakes. The ink also preferably includes a thermosetting or radiation curable binder and a thinner. The film of ink is cured before the layer of metal is electroplated thereon. The plated through-hole is protected from the etchant when the conductors are etched by placing a radiation curable putty material into the hole, curing it, and then depositing a layer of resist on top of the cured putty and a conductive sheet clad to the substrate of the circuit board.

US Patent:

42405041, Dec 23, 1980

Filed:

Dec 21, 1978

Appl. No.:

5/972118

Inventors:

Ronald L. Reed - Houston TX

Assignee:

Exxon Production Research Company - Houston TX

International Classification:

E21B 4322

US Classification:

166273

Abstract:

A method of enhanced oil recovery is disclosed wherein an upper-phase or a middle-phase microemulsion and an immiscible aqueous phase are simultaneously injected into a subterranean formation. The viscosities of the injected phases are adjusted so that the aqueous phase/microemulsion viscosity ratio approximates the reservoir brine/oil viscosity ratio. The injection rates of the injected phases are such that similar oil, microemulsion and aqueous phase velocities are achieved in the reservoir. Oil is displaced to a production well and recovered.

US Patent:

43371590, Jun 29, 1982

Filed:

Jun 19, 1980

Appl. No.:

6/161195

Inventors:

Ronald L. Reed - Houston TX
Clarence W. Carpenter - Houston TX

Assignee:

Exxon Production Research Company - Houston TX

International Classification:

E21B 4322

US Classification:

252 855D

Abstract:

Additional amounts of crude oil are recovered from a subterranean formation by flooding with a translucent emulsion comprising an upper- or middle-phase microemulsion as an external phase and a polymer-containing brine solution as an internal phase. The translucent emulsion tends to coalesce into its component phases under conditions of no shear, but is stabilized by low shears such as those imposed on fluids flowing through a subterranean formation.

US Patent:

44527080, Jun 5, 1984

Filed:

Feb 18, 1982

Appl. No.:

6/349952

Inventors:

Haven S. Aldrich - Seabrook TX
Thomas L. Ashcraft - Baytown TX
Maura C. Puerto - Houston TX
Ronald L. Reed - Houston TX

Assignee:

Exxon Production Research Co. - Houston TX

International Classification:

E21B 4322

US Classification:

252 855D

Abstract:

An oil recovery method is disclosed which uses a particular class of alkylaryl sulfonate surfactants. The surfactants are derived from an extracted aromatic feedstock consisting essentially of benzene, toluene, xylenes, and lesser amounts of ethylbenzene, trimethylbenzenes, and tetramethylbenzenes. The aromatic feedstock is then alkylated with linear. alpha. -olefins to favor second-carbon attachment, and sulfonated to result in surfactants having high oil solubilization parameters and whose phase behavior is substantially independent of temperature over 120. degree. -250. degree. Fahrenheit.

US Patent:

50465600, Sep 10, 1991

Filed:

Jun 10, 1988

Appl. No.:

7/205715

Inventors:

Gary F. Teletzke - SugarLand TX
Ronald L. Reed - Houston TX

Assignee:

Exxon Production Research Company - Houston TX

International Classification:

E21B 4322
E21B 4324

US Classification:

166272

Abstract:

A method for recovering oil from a subterranean formation is disclosed wherein an aqueous surfactant solution is injected into the formation to reduce the mobility of gas in a gas-flooding process. The gas may include hydrocarbon gas, inert gas, carbon dioxide, and steam, or mixtures thereof. The surfactant is represented by the general formula ##STR1## where R is a linear or branched chain alkyl group with n carbon atoms wherein n ranges from about 6 to about 50, except that if the gas is steam n ranges from about 9 to about 50; Ar is a mononuclear or fused ring dinuclear aryl group; Z is an ionic group consisting of --SO. sub. 3. sup. - M. sup. + or --R'SO. sub. 3. sup. - M. sup. + wherein M. sup. + is a cation and R' is a linear or branched chain alkyl group of from one to about six carbon atoms; x ranges from 0 to about 20; and y ranges from 3 to about 100.

US Patent:

42934281, Oct 6, 1981

Filed:

Jan 18, 1978

Appl. No.:

5/870313

Inventors:

Walter W. Gale - Houston TX
Maura C. Puerto - Houston TX
Thomas L. Ashcraft - Baytown TX
Rhoderick K. Saunders - Sinton TX
Ronald L. Reed - Houston TX

Assignee:

Exxon Production Research Company - Houston TX

International Classification:

C09K 300

US Classification:

252 855D

Abstract:

A method for recovering oil from a subterranean formation is disclosed wherein a novel solution is injected into and driven through the formation. The solution contains an effective amount of surface-active agent having the general formula R. sub. 1 O(C. sub. 3 H. sub. 6 O,. sub. m (C. sub. 2 H. sub. 4 O). sub. n YX wherein R. sub. 1 is a linear or branched alkyl radical, an alkenyl radical, or an alkyl or alkenyl substituted benzene radical, the non-aromatic portion of the radical containing from about 6 to about 24 carbon atoms; m has an average value of between about 1 and about 10; n has an average value of between about 1 and about 10; Y is a hydrophilic group; and X is a cation, preferably monovalent.