Patent US3115195A successfully refreshed from Google Patents.
US3115195A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of reducing viscosity of drilling fluids during drilling
Assignee: Jersey Production Research Co
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Filing: 1961-08-28
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Granted: 1963-12-24
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Expires: 1981-08-28
Abstract
No abstract record available.
Inventors
- 👤 John W Graham
- 👤 John K Kerver
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:36
CPC Classifications
E; E21; E21B; E21B36/00; E21B36/02; E21B21/00; E21B21/06; E21B21/062
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
88 words
A METHOD FOR INCREASING WELL DRILLING RATES WHEN DRILLING WITH WATER WHERE WATER IS CIRCULATED FROM THE EARTH''S SURFACE THROUGH THE DRILL BIT AND BACK TO THE EARTH''S SURFACE DURING DRILLING COMPRISING THE STEPS OF: INJECTING INTERMITTENTLY INTO THE CIRCULATING DRILLING WATER AT THE EARTH''S SURFACE SLUGS OF A COMBUSTIBLE MIXTURE; AND IGNITING THE COMBUSTIBLE MIXTURE SLUGS IN THE VICINITY OF THE DRILL BIT AND BEFORE THE CIRCULATING WATER PASSES THROUGH THE DRILL BIT TO THEREBY HEAT THE CIRCULATING WATER AND REDUCE ITS VISCOSITY ADJACENT THE DRILL BIT.
Claim 2
Independent Claim
88 words
A METHOD FOR INCREASING WELL DRILLING RATES WHEN DRILLING WITH WATER WHERE WATER IS CIRCULATED FROM THE EARTH''S SURFACE THROUGH THE DRILL BIT AND BACK TO THE EARTH''S SURFACE DURING DRILLING COMPRISING THE STEPS OF: INJECTING INTERMITTENTLY INTO THE CIRCULATING DRILLING WATER AT THE EARTH''S SURFACE SLUGS OF A COMBUSTIBLE MIXTURE; AND IGNITING THE COMBUSTIBLE MIXTURE SLUGS IN THE VICINITY OF THE DRILL BIT AND BEFORE THE CIRCULATING WATER PASSES THROUGH THE DRILL BIT TO THEREBY HEAT THE CIRCULATING WATER AND REDUCE ITS VISCOSITY ADJACENT THE DRILL BIT.
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) | 1966-12-23 | 1967-06-24 | 1967-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-12-23 | 1971-06-24 | 1971-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-12-23 | 1975-06-24 | 1975-12-24 | $7700.00 | Window Closed / Lapsed |