Schlumberger Technology Corporation

Michael A Dardis

Curtis L Boney

John Lassek

Jason Swaren

Ricardo Ariza

Desmond E Rees

David Ryan Simon

Gregoire Max Jacob

Indranil Roy

Isaac Aviles Cadena

Darrell P Davis

John Fleming

Robert Matthew Graham

Sidney Joseph Jasek

William Norrid

Elizabeth W A Morris

Roberto Jaime

Darrel P Davis

Philipp Tippel

A technique facilitates improved setting of downhole devices, e.g. frac plugs. The technique utilizes a setting tool, e.g. a disposable setting tool, which integrates the functionality of a wireline adapter kit to provide a compact disposable solution for setting downhole devices. The setting tool comprises a self metering system which slows an otherwise violent setting action to a controlled setting sequence. The self metering system enables avoidance of the use of slow burn charges sometimes used in conventional setting tools.

Self metering setting tool having integrated wireline adapter kit functionality

An embodiment may take the form of a method usable with a well including communicating an untethered object downhole in the well to land the object in a restriction to form a fluid barrier, and using an agent carried by the untethered object to seal at least one gap in the fluid barrier. Another embodiment may take the form of an apparatus usable with a well having a solid component to be deployed and be communicated downhole as an untethered object to land in a restriction in the well to form a fluid barrier and an agent attached to the solid component to seal at least one gap in the fluid barrier.

Technique and apparatus for using an untethered object to form a seal in a well

An embodiment may take the form of a method usable with a well including pumping an untethered object into the well to land on a restriction downhole in the well and using the restriction to trigger release of an agent carried by the object into the well. Another embodiment may take the form of an apparatus usable with a well having a solid object adapted to be pumped into the well and an agent to be adapted to be released from the solid object in response to the solid object landing on a restriction in the well.

Delivering an agent into a well using an untethered object

In downhole treatments in the oilfield, ball sealers seated in perforations may not fully seal and may leak fluid through gaps and asperities between the balls and the perforations. A method is given for improving the sealing of ball sealers in perforations by adding a sealing agent that forms a plug in the gaps and severely restricts or eliminates fluid flow. The sealing agent is preferably degradable or soluble, malleable fibers slightly larger than the gaps. Optionally, the particles may be non-degradable, rigid, of different shapes, and smaller than the gaps but able to bridge them. Mixtures of sealing agents may be used. The sealing agent may be added with the ball sealers, after the ball sealers, or both.

Sealing by ball sealers

Diversion by combining dissolvable and degradable particles and fibers

Growing community of inventors

Longview, TX, United States of America

Michael A Dardis