Method and system for determination of pipe location in blowout preventers
US9416649B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 17, 2014 |
| Grant date | Aug 16, 2016 |
| Priority date | — |
| Expiry date | Nov 7, 2034 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B33/06
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A system to detect a position of a pipe with respect to a BOP includes a casing disposed around an outer surface of a section of the pipe. The system further includes sensing devices that are disposed on the casing and arranged to form a plurality of arrays and configured to generate position signals. The arrays are disposed circumferentially around the casing and spaced from one another along the length of the casing. The system includes a processing unit configured to compute distance between the pipe and each sensing device. The processing unit generates a first alert when the distance between the pipe and at least one sensing device is different from a reference distance. The processing unit generates a second alert when the distance between the pipe and each sensing device of at least one array of sensing devices is different from the reference distance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.