| Patent | Date |
|---|
Application of a stabilized polymer gel to an alkaline treatment region for improved hydrocarbon recovery
Grant 6,189,615 - Sydansk February 20, 2 | 2001-02-20 |
Foamed gel for permeability reduction or mobility control in a subterranean hydrocarbon-bearing formation
Grant 6,103,772 - Sydansk August 15, 2 | 2000-08-15 |
Process for reducing hydrocarbon leakage from a subterranean storage cavern
Grant 5,842,519 - Sydansk December 1, 1 | 1998-12-01 |
Foamed gel for permeability reduction or mobility control in a subterranean hydrocarbon-bearing formation
Grant 5,834,406 - Sydansk November 10, 1 | 1998-11-10 |
Permeability reduction in a hydrocarbon-bearing formation using a stabilized polymer gel
Grant 5,816,323 - Sydansk October 6, 1 | 1998-10-06 |
Foamed gel completion, workover, and kill fluid
Grant 5,682,951 - Sydansk November 4, 1 | 1997-11-04 |
Process for reducing permeability in a subterranean hydrocarbon-bearing formation utilizing a gelation solution having a controlled gelation rate
Grant 5,650,379 - Sydansk July 22, 1 | 1997-07-22 |
Polymer enhanced foam drilling fluid
Grant 5,513,712 - Sydansk May 7, 1 | 1996-05-07 |
Foamed gel employed as a drilling fluid, a lost circulation fluid, or a combined drilling/lost circulation fluid
Grant 5,495,891 - Sydansk March 5, 1 | 1996-03-05 |
Selective placement of a permeability-reducing material in a subterranean interval to inhibit vertical flow through the interval
Grant 5,476,145 - Sengul , et al. December 19, 1 | 1995-12-19 |
Foamed gel for blocking fluid flow in soil
Grant 5,462,390 - Sydansk October 31, 1 | 1995-10-31 |
Process for reducing permeability in a high-temperature subterranean hydrocarbon-bearing formation utilizing a decarboxylated crosslinking agent
Grant 5,431,226 - Sydansk July 11, 1 | 1995-07-11 |
Process for reducing permeability in a subterranean hydrocarbon-bearing formation utilizing a gelation solution having a controlled gelation rate
Grant 5,421,411 - Sydansk June 6, 1 | 1995-06-06 |
Hydrocarbon recovery process utilizing a gel prepared from a polymer and a preformed crosslinking agent
Grant 5,415,229 - Sydansk May 16, 1 | 1995-05-16 |
Polymer enhanced foam for blocking fluid flow in soil
Grant 5,372,462 - Sydansk December 13, 1 | 1994-12-13 |
Polymer enhanced foam for treating gas override or gas channeling
Grant 5,346,008 - Sydansk September 13, 1 | 1994-09-13 |
Foamed gels to reduce gas coning in matrix environments
Grant 5,322,125 - Sydansk June 21, 1 | 1994-06-21 |
Enhanced liquid hydrocarbon recovery process
Grant 5,129,457 - Sydansk July 14, 1 | 1992-07-14 |
Well kill treatment for oil field wellbore operations
Grant 4,995,461 - Sydansk * February 26, 1 | 1991-02-26 |
Lost circulation fluid for oil field drilling operations
Grant 4,989,673 - Sydansk February 5, 1 | 1991-02-05 |
Lost circulation treatment for oil field drilling operations
Grant 4,957,166 - Sydansk September 18, 1 | 1990-09-18 |
Kill fluid for oil field operations
Grant 4,947,935 - Sydansk August 14, 1 | 1990-08-14 |
Delayed in situ crosslinking of acrylamide polymers for oil recovery applications in high-temperature formations
Grant 4,844,168 - Sydansk * July 4, 1 | 1989-07-04 |
Hydraulic fracturing process using a polymer gel
Grant 4,779,680 - Sydansk * October 25, 1 | 1988-10-25 |
Rate-controlled polymer gelation process for oil recovery applications
Grant 4,770,245 - Sydansk * September 13, 1 | 1988-09-13 |
Delayed polyacrylamide gelation process for oil recovery applications
Grant 4,744,418 - Sydansk * May 17, 1 | 1988-05-17 |
Conformance improvement in a subterranean hydrocarbon-bearing formation using a crosslinked polymer
Grant 4,744,419 - Sydansk , et al. * May 17, 1 | 1988-05-17 |
Plugging an abandoned well with a polymer gel
Grant 4,730,675 - Wygant , et al. March 15, 1 | 1988-03-15 |
Plugging a tubing/casing annulus in a wellbore with a polymer gel
Grant 4,730,674 - Burdge , et al. March 15, 1 | 1988-03-15 |
Wellbore cementing process using a polymer gel
Grant 4,724,906 - Sydansk February 16, 1 | 1988-02-16 |
Accelerated polymer gelation process for oil recovery applications
Grant 4,723,605 - Sydansk February 9, 1 | 1988-02-09 |
Conformance improvement in a subterranean hydrocarbon-bearing formation using a polymer gel
Grant 4,683,949 - Sydansk , et al. August 4, 1 | 1987-08-04 |
Process for utilizing a silicate/silica cement in oil field applications
Grant 4,505,751 - Sydansk March 19, 1 | 1985-03-19 |
Process for selectively reducing the permeability of a subterranean formation
Grant 4,352,395 - Sydansk October 5, 1 | 1982-10-05 |
Process for selectively reducing the permeability of a subterranean sandstone formation
Grant 4,301,867 - Sydansk , et al. November 24, 1 | 1981-11-24 |
Use of potassium hydroxide solutions in a well bore
Grant 4,284,140 - Sydansk , et al. August 18, 1 | 1981-08-18 |
Method For Improving Oil-water Ratios In Oil Producing Wells
Grant 3,830,302 - Dreher , et al. August 20, 1 | 1974-08-20 |
Control Of Water Solubilization In Micellar Solutions
Grant 3,648,770 - Sydansk , et al. March 14, 1 | 1972-03-14 |
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