Patent US3700032A successfully refreshed from Google Patents.
US3700032A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for fracturing subterranean formations
Assignee: ExxonMobil Upstream Research Co
•
Filing: 1970-12-16
•
Granted: 1972-10-24
•
Expires: 1990-12-16
Abstract
Abstract A fracturing method wherein a fluid containing particles of petroleum coke are injected into a subterranean formation at a pressure sufficient to open a fracture therein.
Inventors
- 👤 William M Terry
- 👤 John W Graham
- 👤 Albert R Sinclair
- 👤 Othar M Kiel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:04
CPC Classifications
E; E21; E21B; E21B43/00; E21B43/25; E21B43/26
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
15 words
The method as recited in claim 1 wherein the said liquid is an aqueous liquid.
Claim 2
Dependent Claim
14 words
The method as recited in claim 1 wherein said liquid is a hydrocarbon oil.
Claim 3
Dependent Claim
16 words
The method as recited in claim 2 wherein the aqueous liquid further contains a water-dispersible gum.
Claim 4
Dependent Claim
32 words
The method as recited in claim 4 wherein the water-dispersible gum is guar gum and is present in a concentration of at least 10 pounds per 1,000 gallons of said aqueous liquid.
Claim 5
Dependent Claim
30 words
The method as recited in claim 1 wherein a major portion of the particles of fluid coke are smaller than 200 mesh in size based on the U.S. Sieve Scale.
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) | 1975-10-24 | 1976-04-24 | 1976-10-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-24 | 1980-04-24 | 1980-10-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-24 | 1984-04-24 | 1984-10-24 | $7700.00 | Window Closed / Lapsed |