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US3242986A
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Method for sealing formations
Assignee: Halliburton Co
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Filing: 1965-03-12
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Granted: 1966-03-29
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Expires: 1985-03-12
Abstract
No abstract record available.
Inventors
- 👤 Wayne F Hower
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:20
CPC Classifications
C; C04; C04B; C04B24/00; C04B24/12; C04B24/16; C04B24/24; C04B24/28; C04B24/32; C04B28/00; C04B28/02; C04B28/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
162 words
A METHOD OF SELECTIVELY SEALING A WATER BEARING EARTH FORMATION ADJACENT HYDROCARBON BEARING FORMATIONS IN OIL AND GAS WELLS OR THE LIKE, INCLUDING THE STEP OF, INTRODUCING INTO THE EARTH FORMATION A LOW FLUID LOSS NONAQUEOUS CEMENTING COMPOSITION CONSISTING ESSENTIALLY OF PORTLAND CEMENT, MINEAL OIL CONTAINING VERY LITTLE WATER, PARTICULATED CALCIUM CHLORIDE AND A SURFACE ACTIVE AGENT, SAID MINERAL OIL BEING IN AN AMOUNT SUFFICIENT TO FORM A PUMPABLE SLURRY, SAID CALCIUM CHLORIDE BEING IN AN AMOUNT RANGING FROM ABOUT 0.25% TO ABOUT 4.0% BY WEIGHT BASED ON THE WEIGHT OF THE CEMENT, AND SAID SURFACE ACTIVE AGENT BEING IN AMOUNT SUFFICIENT TO IMPROVE THE DISPERSIBILITY OF THE CEMENT IN THE OIL AND SELECTED FROM THE GROUP CONSISTING OF CATIONIC AND NONIONIC SURFACE ACTIVE AGENTS WHICH ARE MISCIBLE WITH HYDROCARBONS, WHEREBY THE FLUID LOSS OF SAID CEMENTING COMPOSITION AS DETERMINED BY API CODE PROCEDURE IS SUBSTANTIALLY LESS THAN THE FLUID LOSS OF THE SAME CEMENTING COMPOSITION WITHOUT THE CALCIUM CHLORIDE ADDED THERETO.
Claim 2
Independent Claim
162 words
A METHOD OF SELECTIVELY SEALING A WATER BEARING EARTH FORMATION ADJACENT HYDROCARBON BEARING FORMATIONS IN OIL AND GAS WELLS OR THE LIKE, INCLUDING THE STEP OF, INTRODUCING INTO THE EARTH FORMATION A LOW FLUID LOSS NONAQUEOUS CEMENTING COMPOSITION CONSISTING ESSENTIALLY OF PORTLAND CEMENT, MINEAL OIL CONTAINING VERY LITTLE WATER, PARTICULATED CALCIUM CHLORIDE AND A SURFACE ACTIVE AGENT, SAID MINERAL OIL BEING IN AN AMOUNT SUFFICIENT TO FORM A PUMPABLE SLURRY, SAID CALCIUM CHLORIDE BEING IN AN AMOUNT RANGING FROM ABOUT 0.25% TO ABOUT 4.0% BY WEIGHT BASED ON THE WEIGHT OF THE CEMENT, AND SAID SURFACE ACTIVE AGENT BEING IN AMOUNT SUFFICIENT TO IMPROVE THE DISPERSIBILITY OF THE CEMENT IN THE OIL AND SELECTED FROM THE GROUP CONSISTING OF CATIONIC AND NONIONIC SURFACE ACTIVE AGENTS WHICH ARE MISCIBLE WITH HYDROCARBONS, WHEREBY THE FLUID LOSS OF SAID CEMENTING COMPOSITION AS DETERMINED BY API CODE PROCEDURE IS SUBSTANTIALLY LESS THAN THE FLUID LOSS OF THE SAME CEMENTING COMPOSITION WITHOUT THE CALCIUM CHLORIDE ADDED THERETO.
References Cited (Backward Citations)
US1772999A
Cited
US2800963A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-03-28 | 1969-09-27 | 1970-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-28 | 1973-09-27 | 1974-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-28 | 1977-09-27 | 1978-03-29 | $7700.00 | Window Closed / Lapsed |