Explosively fracturing formations in wells
Abstract
Abstract IN ORDER TO INCREASE DRAINAGE FROM A POROUS BUT LOW PERMEABILITY RESERVOIR ROCK INTO WELLS, A PLURALITY OF WELLS ARE DRILLED INTO THE RESERVOIR ROCK. HYDRAULIC FRACTURING IS EMPOLYED TO FRACTURE BETWEEN WELLS IN THE PAY FORMATION. A LOW FLUID LOSS LIQUID EXPLOSIVE IS PLACED IN ALL WELLS. IT ALSO FILLS THE FRACTURE. PREFERABLY EACH WELL IS STEMMED BY PLACING A LONG MECHANICAL OBSTRUCTION IMMEDIATELY ABOVE THE LIQUID EXPLOSIVE. DETONATION OF THE EXPLOSIVE IN THE CENTRAL WELL CAUSES EXPLOSIION OF THE LIQUID IN THE FRACTURE, WHICH IN TURN DETONATES THE EXPLOSIVE IN THE SURROUNDING WELLS. THIS CREATES A ZONE OF LARGE DRAINAGE AREA FOR PRODUCTION FROM THE FORMATION, OR INJECTION INTO IT. PREFERABLY THE NEIGHBORING WELLS SURROUNDING THE CENTRAL WELL ARE DRILLED BY DEVIATION OR SIDETRACKING FROM THE CENTRAL BORE.
Inventors
- 👤 George C Howard
Bibliographic Details
Claims Analysis
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-06-27 | 1974-12-27 | 1975-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-27 | 1978-12-27 | 1979-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-27 | 1982-12-27 | 1983-06-28 | $7700.00 | Window Closed / Lapsed |