Schlumberger Technology Corporation

Joao Mendonca

Oguzhan Guven

Laurent Alteirac

Yann Dufour

Michael Underbrink

Kaiyang Kevin Liew

Nabil Batita

Oloruntoba Ogunsanwo

Saikumar Mani

Nikhil Nair

An electronic trigger system includes a longitudinal housing including detection, electronics, and actuation sections disposed therein. The detection section includes a pressure sensor for receiving a predetermined pressure signal, and an electronic control board including at least one battery is disposed in the electronics section. The actuation section includes a prefill chamber, a setting piston disposed in the prefill chamber, an actuation device, an atmospheric chamber, and a pressure port. A predetermined amount of prefilled fluid at hydrostatic pressure is trapped between the setting piston and the actuation device in the prefill chamber. The actuation device isolates the prefilled fluid at hydrostatic pressure in the prefill chamber from the atmospheric chamber. Actuation occurs when, upon receipt of the predetermined pressure signal by the pressure sensor, the electronic control board transmits power to the actuation device, causing the prefilled fluid to flow through the actuation device and into the atmospheric chamber.

Electronic rupture disc with atmospheric chamber

A swellable packer comprises an elastomeric element and a mandrel extending through the elastomeric element. The elastomeric element is formed of an elastomer which undergoes swelling following contact with certain types of well fluids. The elastomeric element is sealed with respect to the mandrel and may be located along an undercut region of the mandrel. Additionally, the mandrel has an interior passage extending longitudinally through the mandrel and offset with respect to an external geometry of the mandrel. Accordingly, the mandrel is effectively constructed with relatively thicker and thinner wall sections. The thicker wall section or sections accommodates at least one bypass conduit which extends longitudinally through the mandrel.

System and methodology for providing bypass through a swellable packer

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Rosharon, TX, United States of America

Joao Mendonca