Patent US2969322A successfully refreshed from Google Patents.
US2969322A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of well packer fluids
Assignee: Texaco Inc
•
Filing: 1958-04-16
•
Granted: 1961-01-24
•
Expires: 1978-04-16
Abstract
No abstract record available.
Inventors
- 👤 Walter J Weiss
- 👤 Clarence O Walker
- 👤 John S Brukner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 11:16
CPC Classifications
C; C09; C09K; C09K8/00; C09K8/02; C09K8/04; C09K8/14; C09K8/18; C09K8/20; C09K8/206; Y; Y10; Y10S; Y10S507/00; Y10S507/926
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
165 words
A METHOD OF CONVERTING AN AQUEOUS LIMED MUD INTO A WELL PACKER FLUID HAVING RELATIVELY IMPROVED HIGH TEMPERATURE PROPERTIES WHICH COMPRISES DEWATERING SAID LIMED MUD BY CENTRIFUGING TO INCREASE THE DENSITY THEREOF, INCORPORATING IN THE RESULTING DEWATERED MUD A SUFFICIENT AMOUNT OF WATER AND VISCOSITY INCREASING AGENT TO YIELD A RESULTING MUD HAVING DENSITY APPROACHING THAT OF THE AFORESAID LIMED MUD, THE PM VALUE OF SAID RESULTING MUD TO HAVING BEEN SUBSTANTIALLY REDUCED WITH RESPECT TO THE AFORESAID LIMED MUD, DEWATERING SAID RESULTING MUD TO INCREASE THE DENSITY THEREOF, ADDING ADDITIONAL WATER AND INCORPORATING IN THE DEWATERED RESULTING MUD AN ADDITIONAL AMOUNT OF VISCOSITY INCREASING AGENT TO YIELD A RESULTING PACKER FLUID HAVING A PM VALUE OF LESS THAN 5.0 AND A SHEAR VALUE WHEN SUBJECTED TO A TEMPERATURE OF 350*F. FOR A PERIOD OF 24 HOURS OF LESS THAN ABOUT 550 LBS. PER SQ FT., WHEREIN PM IS THE NUMBER OF CCS. OF N/50 H2SO4 REQUIRED TO TITRATE 1 CC. OF THE WHOLE MUD.
Claim 2
Independent Claim
165 words
A METHOD OF CONVERTING AN AQUEOUS LIMED MUD INTO A WELL PACKER FLUID HAVING RELATIVELY IMPROVED HIGH TEMPERATURE PROPERTIES WHICH COMPRISES DEWATERING SAID LIMED MUD BY CENTRIFUGING TO INCREASE THE DENSITY THEREOF, INCORPORATING IN THE RESULTING DEWATERED MUD A SUFFICIENT AMOUNT OF WATER AND VISCOSITY INCREASING AGENT TO YIELD A RESULTING MUD HAVING DENSITY APPROACHING THAT OF THE AFORESAID LIMED MUD, THE PM VALUE OF SAID RESULTING MUD TO HAVING BEEN SUBSTANTIALLY REDUCED WITH RESPECT TO THE AFORESAID LIMED MUD, DEWATERING SAID RESULTING MUD TO INCREASE THE DENSITY THEREOF, ADDING ADDITIONAL WATER AND INCORPORATING IN THE DEWATERED RESULTING MUD AN ADDITIONAL AMOUNT OF VISCOSITY INCREASING AGENT TO YIELD A RESULTING PACKER FLUID HAVING A PM VALUE OF LESS THAN 5.0 AND A SHEAR VALUE WHEN SUBJECTED TO A TEMPERATURE OF 350*F. FOR A PERIOD OF 24 HOURS OF LESS THAN ABOUT 550 LBS. PER SQ FT., WHEREIN PM IS THE NUMBER OF CCS. OF N/50 H2SO4 REQUIRED TO TITRATE 1 CC. OF THE WHOLE MUD.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-01-24 | 1964-07-25 | 1965-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-01-24 | 1968-07-25 | 1969-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-01-24 | 1972-07-25 | 1973-01-24 | $7700.00 | Window Closed / Lapsed |