Schlumberger Technology Corporation

Mikhail Petrovich Gusev

Bruno Lecerf

Robert A Parrott

Michael J Bertoja

Christian Menger

Jason Baihly

Vladimir Konstantinovich Khan

Konstantin Mikhailovich Serdyuk

Roman Alexandrovich Skachkov

Sergey Vladimirovich Solovyov

Ilya Anatolievich Pavlov

A burner assembly () for flaring low calorific gases, such as methane with high carbon dioxide content, may be configured to provide a gradual decrease in flow velocity. The burner assembly () may include a conical deflector () that creates a relatively large recirculation zone () downstream of the deflector (), thereby to stabilize fluid flow. A swirl inducing structure positioned in a final stage of the burner assembly () further stabilizes the fluid flow and flame at different gas flow rates.

Burner assembly for flaring low calorific gases

A technique includes deploying a string that includes a seat assembly in a well; and running a shifting tool in a passageway of the string. The shifting tool shifts the seat assembly to cause the seat assembly to transition between a first state in which the seat assembly forms a seat that is adapted to allow an untethered object communicated in the passageway of the string to pass through the seat assembly to a second state in which the seat assembly is adapted to catch the object to form a fluid barrier in the string. The fluid barrier is used to divert fluid in the tubing string to perform, for example, a stimulation operation.

Method and apparatus for completing a multi-stage well

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Krasnoobsk, Russia

Mikhail Petrovich Gusev