US3674089A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for stimulating hydrocarbon-bearing formations
Assignee: Cities Service Oil Co
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Filing: 1970-09-10
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Granted: 1972-07-04
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Expires: 1990-09-10
Abstract
Abstract An approved method is disclosed for the stimulation of formations which exhibit a high oil content and porosity, but having a low permeability and therefore poor primary production. The method comprises the placement of explosives at predetermined points within a formation so as to effectively fracture a large portion of the formation subsequent to the explosive placement and detonation. A fracture network is created with interwell communication. A well is drilled into the fracture zone and oil produced therefrom.
Inventors
- 👤 Ted R Moore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 07:06
CPC Classifications
E; E21; E21B; E21B43/00; E21B43/25; E21B43/26; E21B43/263; E21B43/30
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
59 words
A method for stimulating a hydrocarbon bearing formation comprising: a. drilling one or more uncompleted wells into the formation; b. placing chemical explosive as the only explosive in the uncompleted wells and adjacent formation; c. detonating the chemical explosives; d. plugging and abandoning the uncompleted wells; and e. drilling and completing a production well within the fracture network formed.
Claim 2
Independent Claim
59 words
A method for stimulating a hydrocarbon bearing formation comprising: a. drilling one or more uncompleted wells into the formation; b. placing chemical explosive as the only explosive in the uncompleted wells and adjacent formation; c. detonating the chemical explosives; d. plugging and abandoning the uncompleted wells; and e. drilling and completing a production well within the fracture network formed.
Claim 3
Dependent Claim
11 words
The method of claim 1 in which the formation is chalk.
Claim 4
Dependent Claim
13 words
The method of claim 1 in which the chemical explosives are detonated simultaneously.
Claim 5
Dependent Claim
12 words
The method of claim 3 in which the chemical explosives are non-auto-detonating.
Claim 6
Dependent Claim
32 words
The method of claim 1 in which four uncompleted wells and a fifth completed well are drilled to form a five-spot pattern with the completed well encompassed by the four uncompleted wells.
Claim 7
Dependent Claim
11 words
The method of claim 5 in which the formation is chalk.
Claim 8
Dependent Claim
13 words
The method of claim 6 in which the chemical explosives are detonated simultaneously.
Claim 9
Dependent Claim
12 words
The method of claim 7 in which the chemical explosives are non-auto-detonating.
Claim 10
Dependent Claim
19 words
The method of claim 1 further comprising hydraulically fracturing the uncompleted wells prior to the implacement of the explosive.
Claim 11
Dependent Claim
32 words
The method of claim 9 in which four uncompleted wells and a fifth completed well are drilled to form a five-spot pattern with the completed well encompassed by the four uncompleted wells.
Claim 12
Dependent Claim
23 words
The method of claim 1 further comprising partially filling the uncompleted well with a packing material prior to detonating the explosive placed therein.
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) | 1975-07-04 | 1976-01-03 | 1976-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-04 | 1980-01-03 | 1980-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-04 | 1984-01-03 | 1984-07-04 | $7700.00 | Window Closed / Lapsed |