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Patent US3876005A successfully refreshed from Google Patents.
US3876005A
Expired / Lapsed
US
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High temperature, low density cementing method
Assignee: Halliburton Co
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Filing: 1974-03-18
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Granted: 1975-04-08
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Expires: 1994-03-18
Abstract
Abstract A well bore penetrating a subterranean formation is cemented by placing a cementing composition comprising hydraulic cement, pozzolanic material, lime and water in the annulus defined by the conduit disposed in the well bore and maintaining the composition in the annulus until the composition hardens.
Inventors
- 👤 Arnold Fincher
- 👤 Pat J Broussard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 06:18
CPC Classifications
C; C09; C09K; C09K8/00; C09K8/42; C09K8/46; C04; C04B; C04B28/00; C04B28/02; Y; Y02; Y02W; Y02W30/00; Y02W30/50; Y02W30/91
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
93 words
A METHOD OF CEMENTING A CONDUIT DISPOSED IN A WELL BORE PENETRATING A SUBSTERRANEAN FORMATION WHICH COMPRISES THE STEPS OF: A. PLACING A CEMENTING COMPOSITION IN THE ANNULUS DEFINED BY THE CONDUIT DISPOSED IN THE WEL BORE, AND B. MAINTAINING SAID COMPOSITION IN SAID ANNULUS UNTIL SAID CEMENTING COMPOSITION HARDENS, WHEREIN SAID CEMENTING COMPOSITION COMPRISES A MIXTURE OF ABOUT 40 TO ABOUT 50 PARTS BY WEIGHT HYDRAULIC CEMENT, ABOUT 15 TO ABOUT 25 PARTS BY WEIGHT LINE, ABOUT 100 PARTS BY WEIGHT POZZOLANIC MATERIAL, AND AT LEAST SUFFICIENT WATER TO FORM A SLURRY.
Claim 2
Independent Claim
93 words
A METHOD OF CEMENTING A CONDUIT DISPOSED IN A WELL BORE PENETRATING A SUBSTERRANEAN FORMATION WHICH COMPRISES THE STEPS OF: A. PLACING A CEMENTING COMPOSITION IN THE ANNULUS DEFINED BY THE CONDUIT DISPOSED IN THE WEL BORE, AND B. MAINTAINING SAID COMPOSITION IN SAID ANNULUS UNTIL SAID CEMENTING COMPOSITION HARDENS, WHEREIN SAID CEMENTING COMPOSITION COMPRISES A MIXTURE OF ABOUT 40 TO ABOUT 50 PARTS BY WEIGHT HYDRAULIC CEMENT, ABOUT 15 TO ABOUT 25 PARTS BY WEIGHT LINE, ABOUT 100 PARTS BY WEIGHT POZZOLANIC MATERIAL, AND AT LEAST SUFFICIENT WATER TO FORM A SLURRY.
Claim 3
Dependent Claim
39 words
The method of cementing a conduit disposed in a well bore as defined in claim 1 wherein said cementing composition comprises sufficient water to form a slurry having a density of about 12 to about 14.5 pounds per gallon.
Claim 4
Dependent Claim
39 words
The method of cementing a conduit disposed in a well bore as defined by claim 1 wherein said cementing composition comprises sufficient water to form a slurry having a density of about 12.7 to about 13.5 pounds per gallon.
Claim 5
Dependent Claim
23 words
The method of cementing a conduit disposed in a well bore as defined in claim 1 wherein said hydraulic cement is Portland cement.
Claim 6
Dependent Claim
48 words
The method of cementing a conduit disposed in a well bore as defined in claim 4 wherein said hydraulic cement is Portland cement selected from the group consisting of API Class A, B, C, D, E, F, G, and H cement and mixtures of these classes of cement.
Claim 7
Dependent Claim
23 words
The method of cementing a conduit disposed in a well bore as defined in claim 1 wherein said pozzolanic material is fly ash.
Claim 8
Dependent Claim
63 words
The method of cementing a conduit disposed in a well bore as defined in claim 1 wherein said cementing composition comprises a mixture of about 42 parts by weight Portland cement, about 21 parts by weight lime, about 100 parts by weight fly ash and sufficient water to form a slurry having a density of about 12 to about 14.5 pounds per gallon.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-04-07 | 1978-10-07 | 1979-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-04-07 | 1982-10-07 | 1983-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-04-07 | 1986-10-07 | 1987-04-08 | $7700.00 | Window Closed / Lapsed |