Sample carrier for single phase samplers
US8677841B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 28, 2011 |
| Grant date | Mar 25, 2014 |
| Priority date | — |
| Expiry date | Mar 15, 2032 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B49/088
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An apparatus for carrying well samplers including a tubular carrier housing, a crossover sub connected to the housing, and a pair of adjacent single phase samplers set off from the tool centerline axis thereby providing an offset interspatial through-bore region to support wireline operations. The pair of single phase samplers are removably disposed between upper and lower positioning inserts. The inserts have recessed sampler seats and through-bores that align with the interspatial through-bore region. A conduit fluidly connects one pair of recessed seats to the tool exterior so as to port annulus pressure to the pressure-activated triggering mechanisms of the samplers. A rupture disk housing is removably connected to the triggering conduit from an exterior recess in the crossover sub. The other positioning insert includes a clamping mechanism to removably secure the samplers within the carrier. Multiple assemblies of crossover subs and carrier housing can be connected in tandem.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.