Schlumberger Technology Corporation

Marius Smarandache

Douglas W Grant

Sebastien Ives

David Merlau

Akhil Bahl

Brian John Bethscheider

Malcolm Philip Atkinson

Lorena Lopez Pinana

Gareth Yen Ket Chin

A sealing device for sealing an interface between a first surface and a second surface includes a primary sealing element for forming a primary seal at the interface and a carrier body that is slidable with respect to the interface to engage the primary sealing element. A carrier sealing element is positioned on the carrier body, and is configured to seal the interface with a secondary seal. The carrier body is slidable to engage the primary sealing element based on the secondary seal sealing the interface.

Sealing device

A technique facilitates obtaining samples of well fluid or other fluid. A sampling tool comprises a sample chamber for collecting the fluid sample. Access to the sample chamber is controlled with a rod shiftable within the sampling tool. Additionally, a locking mechanism works in cooperation with the rod to lock the rod against undesirable movement at various stages of the sampling operation. The locking mechanism may comprise a pair of locking features which engage a groove in the rod to initially block inadvertent closure of access to the sample chamber and subsequently to block inadvertent opening of access to the sample chamber after collection of the fluid sample.

Double Rod Lock System

A sampling tool includes a tubular member and a sampling piston positioned within the tubular member. The sampling piston has a bore formed axially-therethrough. A secondary piston is positioned within the bore of the sampling piston. A check valve assembly is positioned at least partially within the tubular member. The secondary piston and the check valve assembly move together with respect to the tubular member.

Downhole sampling tool with check valve piston

Growing community of inventors

Houston, TX, United States of America

Marius Smarandache