| Patent Number |
Title Of Patent |
Date Issued |
| 4861500 |
Delayed crosslinker composition containing organic titanium complexes and hydroxycarboxylic acid |
August 29, 1989 |
| A crosslinker composition that can produce delayed crosslinking of an aqueous solution of a crosslinkable organic polymer. The composition comprises an organic titanium complex. The composition further contains an organic hydroxycarboxylic acid, preferably hydroxyacetic acid. The pH of |
| 4797216 |
Delayed crosslinker composition |
January 10, 1989 |
| A crosslinker composition that can produce delayed crosslinking of an aqueous solution of a crosslinkable organic polymer. The composition comprises a metal compound, preferably an organic metal complex, and most preferably an organic zirconium complex. The composition further contains |
| 4780223 |
Stabilized fracture fluid and crosslinker therefor |
October 25, 1988 |
| Various organometallic crosslinkers containing titanium or zirconium atoms in the +4 oxidation (valence) state have been used to crosslink solvatable polysaccharides (e.g., hydroxypropyl guar) in aqueous media. The crosslinked gels are useful as fracturing fluids. Aqueous solutions of th |
| 4749041 |
Hydraulic fracturing method using delayed crosslinker composition |
June 7, 1988 |
| A crosslinker composition that can produce delayed crosslinking of an aqueous solution of a crosslinkable organic polymer. The composition comprises a metal compound, preferably an organic metal complex, and most preferably an organic zirconium complex. The composition further contains |
| 4749040 |
Method of fracturing a subterranean formation using delayed crosslinker compositions containing |
June 7, 1988 |
| A crosslinker composition that can produce delayed crosslinking of an aqueous solution of a crosslinkable organic polymer. The composition comprises an organic titanium complex. The composition further contains an organic alpha-hydroxymonocarboxylic acid, preferably hydroxyacetic acid. |
| 4686052 |
Stabilized fracture fluid and crosslinker therefor |
August 11, 1987 |
| Various organometallic crosslinkers containing titanium or zirconium atoms in the +4 oxidation (valence) state have been used to crosslink solvatable polysaccharides (e.g., hydroxypropyl guar) in aqueous media. The crosslinked gels are useful as fracturing fluids. Aqueous solutions of th |
| 4657081 |
Hydraulic fracturing method using delayed crosslinker composition |
April 14, 1987 |
| A crosslinker composition that can produce delayed crosslinking of an aqueous solution of a crosslinkable organic polymer. The composition comprises a metal compound, preferably an organic metal complex, and most preferably an organic zirconium complex. The composition further contains |
| 4657080 |
Method of fracturing a subterranean formation using delayed crosslinker compositions containing |
April 14, 1987 |
| A crosslinker composition that can produce delayed crosslinking of an aqueous solution of a crosslinkable organic polymer. The composition comprises an organic titanium complex. The composition further contains an organic hydroxycarboxylic acid, preferably hydroxyacetic acid. The pH of |
