Patent US3270815A successfully refreshed from Google Patents.
US3270815A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combination hydraulic-explosive earth formation fracturing process
Assignee: Dow Chemical Co
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Filing: 1963-09-11
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Granted: 1966-09-06
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Expires: 1983-09-11
Abstract
No abstract record available.
Inventors
- 👤 Osborn Oliver
- 👤 Frank D Patrick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:35
CPC Classifications
E; E21; E21B; E21B43/00; E21B43/25; E21B43/26; E21B43/263
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
140 words
A PROCESS FOR PRODUCING FRACTURES IN AN EARTH FORMATION WHICH COMPRISES: (A) INTRODUCING A HYDRAULIC FRACTURING FLUID INTO AN EARTH FORMATION AT A PRESSURE SUFFICIENT TO INITIATE FRACTURES IN SAID EARTH FORMATION, SAID FRACTURING FLUID CONSISTING OF A SLURRY OF A LIQUID HYDROCARBON HAVING PARTICULAR LIGHT METAL ADMIXED THEREWITH, SAID LIGHT METAL PARTICLES BECOMING LODGED IN THE FRACTURES INITIATED BY THE HYDRAULIC FRATURING ACTION, (B( INTRODUCING AN OXIDIZER SOLUTION INTO THE FRACTURED FOEMATION THEREBY DISPLACING THE HYDROCARBON FRACTURE FLUID FROM CONTACT WITH THE LIGHT METAL PARTICLES, SAID OXIDIZER SOLUTION FORMING AN EXPLOSIVE COMPOSITION WITH THE LIGHT METAL PARTICLES IN THE FORMATION, (C) INTRODUCING AN EXPLOSIVE DETONATOR ADJACENT THE EXPLOSIVE COMPOSITION, AND (D) INITIATING SAID DETONATOR THEREBY TO PROMOTE EXPLOSION OF SAID EXPLOSIVE COMPOSITION IN THE FRACTURES OF SAID FORMATION FURTHER EXTENDING SAID FRACTURES AND PROMOTING THE PERMEABILITY OF SAID FORMATION.
Claim 2
Dependent Claim
140 words
A PROCESS FOR PRODUCING FRACTURES IN AN EARTH FORMATION WHICH COMPRISES: (A) INTRODUCING A HYDRAULIC FRACTURING FLUID INTO AN EARTH FORMATION AT A PRESSURE SUFFICIENT TO INITIATE FRACTURES IN SAID EARTH FORMATION, SAID FRACTURING FLUID CONSISTING OF A SLURRY OF A LIQUID HYDROCARBON HAVING PARTICULAR LIGHT METAL ADMIXED THEREWITH, SAID LIGHT METAL PARTICLES BECOMING LODGED IN THE FRACTURES INITIATED BY THE HYDRAULIC FRATURING ACTION, (B( INTRODUCING AN OXIDIZER SOLUTION INTO THE FRACTURED FOEMATION THEREBY DISPLACING THE HYDROCARBON FRACTURE FLUID FROM CONTACT WITH THE LIGHT METAL PARTICLES, SAID OXIDIZER SOLUTION FORMING AN EXPLOSIVE COMPOSITION WITH THE LIGHT METAL PARTICLES IN THE FORMATION, (C) INTRODUCING AN EXPLOSIVE DETONATOR ADJACENT THE EXPLOSIVE COMPOSITION, AND (D) INITIATING SAID DETONATOR THEREBY TO PROMOTE EXPLOSION OF SAID EXPLOSIVE COMPOSITION IN THE FRACTURES OF SAID FORMATION FURTHER EXTENDING SAID FRACTURES AND PROMOTING THE PERMEABILITY OF SAID FORMATION.
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) | 1969-09-05 | 1970-03-07 | 1970-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-05 | 1974-03-07 | 1974-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-05 | 1978-03-07 | 1978-09-06 | $7700.00 | Window Closed / Lapsed |