US3070164A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Acidizing of wells
Assignee: Halliburton Co
•
Filing: 1960-02-19
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Granted: 1962-12-25
•
Expires: 1980-02-19
Abstract
No abstract record available.
Inventors
- 👤 Jr Thomas J Gordon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:27
CPC Classifications
C; C09; C09K; C09K8/00; C09K8/60; C09K8/62; C09K8/72; C09K8/74; C09K8/78
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
86 words
IN A WELL TREATING OPERATION PERFORMED TO REMOVER PARAFFIN OR SCALE DEPOSITS, THE STEPS OF INTRODUCING INTO THE WELL SUBSTANTIALLY SEPARATED TREATING FLUIDS ONE OF WHICH CONTAINS HYDROCHLORIDE ACID AND THE OTHER OF WHICH CONTAINS ACETIC ANHYDRIDE, CAUSING SAID TREATING FLUIDS TO COME TOGETHER AND REMAIN IN THE WELL FOR A PERIOD OF TIME, WHEREBY HEAT IS PRODUCED AS SAID MINERAL ACID AND ACETIC ANHYDRIDE REACT TOGETHER DURING THE COURESE OF TREATING THE WELL, AND SUBSEQUENTLY REMOVING THE TREATING FLUIDS AND REMOVED DEPOSITS FROM THE WELL.
Claim 2
Dependent Claim
86 words
IN A WELL TREATING OPERATION PERFORMED TO REMOVER PARAFFIN OR SCALE DEPOSITS, THE STEPS OF INTRODUCING INTO THE WELL SUBSTANTIALLY SEPARATED TREATING FLUIDS ONE OF WHICH CONTAINS HYDROCHLORIDE ACID AND THE OTHER OF WHICH CONTAINS ACETIC ANHYDRIDE, CAUSING SAID TREATING FLUIDS TO COME TOGETHER AND REMAIN IN THE WELL FOR A PERIOD OF TIME, WHEREBY HEAT IS PRODUCED AS SAID MINERAL ACID AND ACETIC ANHYDRIDE REACT TOGETHER DURING THE COURESE OF TREATING THE WELL, AND SUBSEQUENTLY REMOVING THE TREATING FLUIDS AND REMOVED DEPOSITS FROM THE WELL.
References Cited (Backward Citations)
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Cited
US2001350A
Cited
US2059459A
Cited
US2204224A
Cited
US2342656A
Cited
US2863832A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-12-24 | 1966-06-25 | 1966-12-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-24 | 1970-06-25 | 1970-12-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-24 | 1974-06-25 | 1974-12-25 | $7700.00 | Window Closed / Lapsed |