Constant entrance hole perforating gun system and method
Number of patents in Portfolio can not be more than 2000
United States of America
Stats
-
Mar 8, 2022
Grant Date -
Feb 11, 2021
app pub date -
Oct 15, 2020
filing date -
Oct 15, 2020
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A perforating gun includes first and second shaped charges. Each of the shaped charges includes a case, a liner, and an explosive. Each liner has a subtended angle about an apex of the liner. A first jet formed by the first shaped charge creates a first entrance hole in a first region of a well casing, and a second jet formed by the second shaped charge, creates a second entrance hole in a second region of the casing. The second region is below the first region in the casing. A ratio of a diameter of the first entrance hole to a diameter of the second entrance hole is 1 when the subtended angle is between 100° and 110°, the ratio is less than 1 when the subtended angle is between 90° and 100°, and the ratio is greater than 1 when the subtended angle is greater than 110°.
First Claim
Other Claims data not available
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
- 0 Citation Count
- E21B Class
- 0 % this patent is cited more than
- 3 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 3.5 Year Payment | $1600.00 | $800.00 | $400.00 | Sep 8, 2025 |
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Sep 8, 2029 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Sep 8, 2033 |