US3779315A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production method
Assignee: Phillips Petroleum Co
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Filing: 1972-08-29
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Granted: 1973-12-18
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Expires: 1992-08-29
Abstract
Abstract A method of producing hydrocarbons from a subterranean hydrocarbon containing formation and reducing the flow of gas from a gas cap of the formation by passing a preselected volume of polymeric solution into the formation at an elevation lower than the gas cap, terminating the injecting of the polymeric solution, and producing fluid entering the well bore while at least intermittently injecting one of a gas-water admixture or volumes of gas and water into the gas cap.
Inventors
- 👤 D Boneau
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:17
CPC Classifications
E; E21; E21B; E21B43/00; E21B43/16; E21B43/18; C; C09; C09K; C09K8/00; C09K8/02; C09K8/03; C09K8/035; C09K8/50; C09K8/504; C09K8/506; C09K8/508; C09K8/58; C09K8/588
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
26 words
A method, as set forth in claim 1, wherein the gas and water injected is substantially continuously injected during producing of fluids entering the well bore.
Claim 2
Dependent Claim
27 words
A method, as set forth in claim 1, wherein the gas and water injection is at a rate sufficient for maintaining the pressure of the gas cap.
Claim 3
Dependent Claim
46 words
A method, as set forth in claim 1, wherein the polymeric solution injected is of a volume sufficient and a polymer concentration sufficient for decreasing the permeability between the gas cap and underlying portions of said formulation over a preselected radial distance from the well bore.
Claim 4
Dependent Claim
31 words
A method, as set forth in claim 1, wherein the concentration of polymer in the polymeric solution is in the range of about 1, 000 to about 5,000 parts per million.
Claim 5
Dependent Claim
26 words
A method, as set forth in claim 1, wherein the polymer of the polymeric solution is one of partially hydrolyzed polyacrylamides, carboxylmethyl cellulose, or polyethylene oxide.
Claim 6
Dependent Claim
30 words
A method, as set forth in claim 1, wherein the water of the gas and water injected is brine having a salt concentration less than about 5,000 parts per million.
Claim 7
Dependent Claim
24 words
A method, as set forth in claim 1, wherein the gas of the gas and water injected is hydrocarbon gas produced from said formation.
Claim 8
Dependent Claim
56 words
A method, as set forth in claim 1, including a second well bore penetrating the subterranean hydrocarbon-containing formation at a location spaced from the first well bore and injecting gas downwardly through the second well bore and into the gas cap of said formation for moving fluids through the formation and into the first well bore.
Claim 9
Dependent Claim
23 words
A method, as set forth in claim 9, wherein the gas and water is injected into the formation through the second well bore.
Claim 10
Dependent Claim
31 words
A method, as set forth in claim 1, wherein the gas-water admixture has a volume ratio in the range of about 500 to about 50,000 gas/water as measured at standard conditions.
Claim 11
Dependent Claim
33 words
A method, as set forth in claim 1, wherein the volume of polymer injected is in the range of about 2 to about 50 barrels per foot of pay zone near oil-producing perforations.
Claim 12
Dependent Claim
34 words
A method, as set forth in claim 1, wherein separate volumes of gas and water are intermittently injected into the gas cap and including decreasing the water injected after a preselected period Of time.
Claim 13
Dependent Claim
28 words
A method, as set forth in claim 1, including producing gas from the gas cap through the first well bore while injecting the polymeric solution into the formation.
References Cited (Backward Citations)
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US2713906A
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US3093192A
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US3207218A
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US3366175A
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US3368624A
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-12-17 | 1977-06-18 | 1977-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-17 | 1981-06-18 | 1981-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-17 | 1985-06-18 | 1985-12-18 | $7700.00 | Window Closed / Lapsed |