Sensing shock during well perforating
US8985200B2 · kind B2 · utility
16Cited by
152References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 23, 2011 |
| Grant date | Mar 24, 2015 |
| Priority date | — |
| Expiry date | Nov 23, 2031 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/119
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A shock sensing tool for use with well perforating can include a generally tubular structure which is fluid pressure balanced, at least one strain sensor which senses strain in the structure, and a pressure sensor which senses pressure external to the structure. A well system can include a perforating string including multiple perforating guns and at least one shock sensing tool, with the shock sensing tool being interconnected in the perforating string between one of the perforating guns and at least one of: a) another of the perforating guns, and b) a firing head.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.