Perforating gun pressure bleed device
US5044388A · kind A · utility
11Cited by
21References
42Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 13, 1989 |
| Grant date | Sep 3, 1991 |
| Priority date | — |
| Expiry date | Feb 13, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/6123
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Hydraulic cylinder apparatus, including a ram and attached piercing element is chained and secured around a perforating gun. A hydraulic cylinder is pressurized to thereby drive the piercing element through the sidewall of the perforating gun. The piercing element is tapered so that it is self-sealing during penetration of the gun sidewall. The piercing element is allowed to retract in a controlled manner so as to control the depressurization of the perforating gun.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.