Schlumberger Technology Corporation

Services Petroliers Schlumberger

Schlumberger Holdings Limited

Prad Research and Development Limited

John Lassek

Christopher N Fredd

Curtis L Boney

Philip F Sullivan

Anatoly Vladimirovich Medvedev

John Daniels

Jason Swaren

Oleg Olegovich Medvedev

Ann M W Hoefer

Michael A Dardis

Charles Miller

Doug Bentley

David Ryan Simon

Desmond E Rees

Alexey Vostrukhov

Ricardo Ariza

William Ernest Clark

Dean Michael Willberg

Marina Nikolaevna Bulova

Darrell P Davis

Rod W Shampine

Yiyan Chen

Carlos Abad

Jean-Louis Pessin

Philippe Gambier

J Ernest Brown

Rajesh Luharuka

William Troy Huey

Paul R Howard

Joe Hubenschmidt

Dean M Willberg

Bernhard Lungwitz

Oscar Bustos

Konstantin Mikhailovich Lyapunov

Kreso Kurt Butula

Alexander Vuacheslavovich Mikhaylov

Elizabeth W A Morris

Marina Bulova

Alex Ahrenst

Darrel P Davis

Donald Hodgson, Iii

Zakir Azmi

Nihat Gurmen

Philipp Tippel

W E Clark

A method for producing minerals and, more specifically, for producing hydrocarbons, by hydraulic fracturing of the rock, can be used for the optimization of formation fracturing crack processing conditions. The method includes splitting a main stream of a propping agent suspension in a fluid at a mixer output into at least two flows having different volume delivery rates, and comingling the at least two flows before delivering to the hydraulic fracturing zone.

Method of propping agent delivery to the well

A proppant pack may be formed in a fracture that extends from a wellbore formed in a subterranean formation and is accomplished through different methods. The methods involve providing multiple spaced apart proppant slugs within a hydraulic fracturing fluid that is introduced into the wellbore at a pressure above the fracturing pressure of the formation.

Methods for providing proppant slugs in fracturing treatments

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

The invention provides an oilfield suspending friction reducer treatment composition fluid comprising from about 0.001 weight percent to about 0.5 weight percent of a drag reducing surfactant; at least one drag reducing enhancer selected from the group consisting of polymeric drag reduction enhancers, monomeric drag reduction enhancers, and mixtures thereof.

Friction reduction fluids

A method of well treatment includes establishing fluid connectivity between a wellbore and at least one target zone for treatment within a subterranean formation. The method includes injecting a treatment composition into the wellbore. The method includes contacting a subterranean formation with the treatment composition, providing a diversion agent to a desired interval in the wellbore and measuring a wellbore parameter while performing at least one of the contacting the target zone and the providing the diversion agent.

Method and system for treating a subterranean formation using diversion

A method well treatment includes establishing fluid connectivity between a wellbore and at least one target zone for treatment within a subterranean formation, which is intersected by a wellbore. The method includes deploying coiled tubing into the wellbore and introducing a treatment composition into the wellbore. The method includes contacting a target zone within the subterranean formation with the treatment composition, introducing a diversion agent through the coiled tubing to an interval within a wellbore and repeating the introduction of the treatment, the contacting of the target zone and the introduction of the diversion agent for more than one target zone.

A method for well treatment by forming a temporary plug in a fracture, a perforation, a wellbore, or more than one of these locations, in a well penetrating a subterranean formation is provided, in which the method of well treatment includes: injecting a slurry comprising a degradable material, allowing the degradable material to form a plug in a perforation, a fracture, or a wellbore in a well penetrating a formation; performing a downhole operation; and allowing the degradable material to degrade after a selected time such that the plug disappears.

Degradable material assisted diversion or isolation

In an embodiment, a method of operating at least one pressure vessel to inject a particulate slurry into a high-pressure line, comprises a first operating cycle comprising: isolating the at least one pressure vessel from the high-pressure line; introducing particulate solids into the pressure vessel through a particulate solids inlet aperture; a second operating cycle comprising: providing high-pressure flow into the pressure vessel; and providing a high-pressure slurry flow from the pressure vessel into the high-pressure line. The method further comprises operating the at least one pressure vessel in the second operating cycle to create a heterogeneous flow of slurry into the high-pressure line.

Method for oilfield material delivery

Growing community of inventors

Katy, TX, United States of America

John Lassek