Patent US3856088A successfully refreshed from Google Patents.
US3856088A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of extinguishing oil and gas well fires
Assignee: ChampionX LLC
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Filing: 1971-12-29
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Granted: 1974-12-24
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Expires: 1991-12-29
Abstract
Abstract Oil and gas well fires may be extinguished by injecting into such wells below the fire a stable liquid dispersion of a water soluble anionic vinyl addition polymer and a water soluble cationic polymer, and then inverting this liquid dispersion in the well to produce a three-dimensional water and hydrocarbon liquid insoluble gel-like structure which seals off said well; thereby extinguishing said fires.
Inventors
- 👤 A Frisque
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:16
CPC Classifications
E; E21; E21B; E21B35/00; C; C09; C09K; C09K8/00; C09K8/50; C09K8/502; E21B29/00; E21B29/08
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
144 words
A METHOD FOR EXTINGUISHING OIL AND GAS WELL FIRES WHICH COMPRISES INJECTING INTO SAID WELL AT A POINT BELOW THE FIRE A STABLE A LIQUID DISPERSION OF A WATER SOLUBLE ANIONIC VINYL ADDITION POLYMER AND A WATER SOLUBLE CATIONIC POLYMER COMPRISING: A. A POLYMERIC LATEX COMPOSED OF A WATER-IN-OIL EMULSION WHICH CONTAINS DISPERSED THEREIN A FINELY-DIVIDED WATER SOLUBLE ANIONIC VINYL ADDITION POLYMER, SAID POYLMERIC LATEX HAVING UNIFORMLY DISTRIBUTED THERETHROUGHOUT; B. A WATER SOLUBLE CATIONIC POLYMER: WITH THE WEIGHT RATIO OF (A) TO (B) BEING WITHIN THE RANGE OF 1:10 TO 10:1 AND THE TOTAL AMOUNT OF (A) PLUS (B) PRESENT WITHIN SAID DISPERSION BEING WITHIN THE RANGE OF FROM 5 TO 75 PERCENT BY WEIGHT, AND THEN INVERTING THE LIQUID DISPERSION IN THE WELL TO PRODUCE A THREE-DIMENSIONAL WATER AND HYDROCRBON LIQUID INSOLUBLE GEL-LIKE STRUCTURE WHICH SEALS OFF SAID WELL; THEREBY EXTINGUISHING SAID FIRES.
Claim 2
Independent Claim
144 words
A METHOD FOR EXTINGUISHING OIL AND GAS WELL FIRES WHICH COMPRISES INJECTING INTO SAID WELL AT A POINT BELOW THE FIRE A STABLE A LIQUID DISPERSION OF A WATER SOLUBLE ANIONIC VINYL ADDITION POLYMER AND A WATER SOLUBLE CATIONIC POLYMER COMPRISING: A. A POLYMERIC LATEX COMPOSED OF A WATER-IN-OIL EMULSION WHICH CONTAINS DISPERSED THEREIN A FINELY-DIVIDED WATER SOLUBLE ANIONIC VINYL ADDITION POLYMER, SAID POYLMERIC LATEX HAVING UNIFORMLY DISTRIBUTED THERETHROUGHOUT; B. A WATER SOLUBLE CATIONIC POLYMER: WITH THE WEIGHT RATIO OF (A) TO (B) BEING WITHIN THE RANGE OF 1:10 TO 10:1 AND THE TOTAL AMOUNT OF (A) PLUS (B) PRESENT WITHIN SAID DISPERSION BEING WITHIN THE RANGE OF FROM 5 TO 75 PERCENT BY WEIGHT, AND THEN INVERTING THE LIQUID DISPERSION IN THE WELL TO PRODUCE A THREE-DIMENSIONAL WATER AND HYDROCRBON LIQUID INSOLUBLE GEL-LIKE STRUCTURE WHICH SEALS OFF SAID WELL; THEREBY EXTINGUISHING SAID FIRES.
Claim 3
Dependent Claim
45 words
The method of claim 1 where the weight ratio of (A) to (B) is within the range of from 1:5 to 5:1 and the amount of (A) plus (B) present within said dispersion is within the range of from 5 to 40 percent by weight.
Claim 4
Dependent Claim
37 words
The method of claim 1 wherein the inversion is accomplished by admixing the stable liquid dispersion with water which contains 0.01 to 5 percent by weight of a water soluble surfactant or a water soluble caustic material.
Claim 5
Independent Claim
47 words
THE METHOD OF CLAIN 1 WHEREIN THE INVERSION IS ACCOMPLISHED BY FIRST INJECTING INTO SAID WELL PRIOR TO THE INJECTION OF THE STABLE LIQUID DISPERSION AN AQUEOUS LIQUID WHICH CONTAINS 0.1 TO 5 PERCENT BY WEIGHT OF A WATER SOLUBLE SURFACTANT OR A WATER SOLUBLE CAUSTIC MATERIAL.
Claim 6
Independent Claim
47 words
THE METHOD OF CLAIN 1 WHEREIN THE INVERSION IS ACCOMPLISHED BY FIRST INJECTING INTO SAID WELL PRIOR TO THE INJECTION OF THE STABLE LIQUID DISPERSION AN AQUEOUS LIQUID WHICH CONTAINS 0.1 TO 5 PERCENT BY WEIGHT OF A WATER SOLUBLE SURFACTANT OR A WATER SOLUBLE CAUSTIC MATERIAL.
Claim 7
Dependent Claim
43 words
The method of claim 3 wherein: A. a polymeric latex composed of a water-in-oil emulsion which contains dIspersed therein a finely-divided polyacrylic acid or a water soluble salt thereof, said polymeric latex having uniformly distributed therethroughout; B. a water soluble alkylene polyamine polymer.
Claim 8
Dependent Claim
43 words
The method of claim 4 wherein: A. a polymeric latex composed of a water-in-oil emulsion which contains dispersed therein a finely-divided polyacrylic acid or a water soluble salt thereof, said polymeric latex having uniformly distributed therethroughout; B. a water soluble alkylene polyamine polymer.
References Cited (Backward Citations)
US3684707A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-12-23 | 1978-06-24 | 1978-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-23 | 1982-06-24 | 1982-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-23 | 1986-06-24 | 1986-12-24 | $7700.00 | Window Closed / Lapsed |