Schlumberger Technology Corporation

Schlumberger Technology Corpoation

Schlumberger Canada Limited

Sofitech N.v.

Mathew Samuel

Trevor L. Hughes

Gary J. Tustin

Jesse C. Lee

Diankui Fu

Richard Hutchins

Philip Fletcher

Michael Parris

Golchi Salamat

Keith Dismuke

Bernhard Lungwitz

Michael D Parris

Andrey Mirakyan

Richard Donald Hutchins

Carlos Abad

Yiyan Chen

Lijun Lin

Leiming Li

Erik B Nelson

Curtis L Boney

Murtaza Ziauddin

Keith Ingram Dismuke

Kevin W England

Geoff Robinson

Thomas Lindvig

Rod W Shampine

Jean-Louis Pessin

Philippe Gambier

Trevor Lloyd Hughes

Gary John Tustin

Syed Afaq Ali

Li Jiang

Jesse Lee

Rajesh Luharuka

Edward Kent Leugemors

Mathew M Samuel

Paul R Howard

Joe Hubenschmidt

Alejandro Pena

Golchehreh Salamat

Sergey Makarychev-Mikhailov

Joseph Ayoub

Alhad Phatak

Patrice Abivin

Thomas Allan

Ann M W Hoefer

Ismail El Kholy

Brian Ochoa

Stephen D Mason

Alejandro Martinez

Stanley Bruce McConnell

Javier Sanchez Reyes

Baudel William Quintero

Rasika Prabhu

Wingki Lee

Thomas O Mitchell

Kristel A Blow

Christina D Martin

Jean Pierre Feraud

Alejandro J Martinez

Jesse C Lee

Edward Leugemors

Rod Shampine

Disclosed are compositions and methods for treating subterranean formations, in particular, oilfield stimulation compositions and methods using polymer viscosified fluid crosslinked with metal complexes with amino and/or phosphonic acids to provide an increased crosslinking temperature and a low pH sensitivity. The metal complexes can be used with borate crosslinkers to provide continuous viscosification as the temperature is increased.

Well treatment with complexed metal crosslinkers

A crosslinker composition including a spread crosslinker for treating a subterranean formation is provided along with methods of sealing a subterranean formation including introducing a crosslinkable fluid, the crosslinkable fluid containing a spread crosslinker and a crosslinkable component, into a subterranean formation.

Spread crosslinker and method of water control downhole

Spread crosslinker and method

A method of treating a subterranean formation penetrated by a wellbore includes introducing a treatment fluid comprised at least a crosslinkable component, and a metal crosslinker to the subterranean formation, forming a crosslinked treatment fluid, and de-crosslinking bonds of the crosslinked treatment fluid by manipulating a pH of the treatment fluid with a pH triggering agent, wherein the pH triggering agent is an amine-precursor compound or a derivative thereof.

Fluid viscosity control

A method and composition for treating a subterranean formation penetrated by a wellbore including preparing an aqueous composition containing a source of boron, whereby boron is present in the slurry in an amount of about 1.7% or greater, by weight, based upon a total weight of the composition, combining the composition with a mixture comprising a viscosifier and aqueous medium to form a treatment fluid, wherein the composition is added to the mixture in an amount of about 0.5% or less, by volume, based upon a total volume of the treatment fluid, and contacting the formation with the treatment fluid to treat the formation. The source of boron may be boric acid.

Aqueous crosslinker slurry compositions and applications

A method of treating a subterranean formation penetrated by a wellbore is accomplished by introducing a fluid into the wellbore containing a combined fluid loss additive and breaker. The combined fluid loss additive and breaker is formed from particles of an organic peroxide provided on a substrate. The particles are sized to facilitate fluid loss control. A treatment operation is carried out wherein a treatment fluid viscosified with a polymer is introduced into the formation through the wellbore.

Method of treating a subterranean formation with combined breaker and fluid loss additive

A method of forming a wellbore fluid, the method including introducing a hydratable polymer and introducing a crosslinker comprised of at least a silica material, the crosslinker having a dimension of from about 5 nm to about 100 nm.

Cross-linkers for hydraulic fracturing fluid

The invention discloses a method of treating a wellbore by providing an aqueous mixture of a hydrated polysaccharide with a salt; adding to the mixture a cross-linking agent for cross-linking the hydrated polysaccharide, wherein the cross-linking agent comprises a zirconium compound, glutamic acid, and a polyol; pumping the aqueous mixture of the hydrated polysaccharide and the cross-linking agent into the wellbore; and cross-linking the hydrated polysaccharide.

Method for treating wellbore in a subterranean formation with high density brines and complexed metal crosslinkers

A mechanism for pressurized delivery of material into a well without exposure to a high pressure pump. The mechanism may include material delivery equipment that is coupled to the high pressure pump or other pressure inducing equipment through a material carrier that intersects a fluid line from the pump. The material carrier may include chambers that are reciprocated or rotated between positions that are isolated from the fluid line and in communication with the fluid line. While isolated from the fluid line, the chambers may be filled with oilfield material which may then be delivered to the fluid line when positioned in communication therewith. In this manner, a supply of the oilfield material may be retained in a substantially isolated state relative to the pump and components thereof which may be susceptible to damage from exposure to the oilfield material.

Oilfield material delivery mechanism

The invention discloses a method comprising providing a fluid comprising a viscosifying agent in an aqueous medium; contacting the fluid with a halogenisocyanuric acid or halogenisocyanurate component; whereby the viscosity of the fluid with the halogenisocyanuric acid or halogenisocyanurate component is reduced compared to the viscosity of the fluid alone; and introducing the fluid into a well. The halogenisocyanuric acid component can be mono chloroisocyanuric acid, dichloroisocyanuric acid or trichloroisocyanuric acid. The halogenisocyanurate component can be an alkali metal monochloroisocyanurate, alkali metal dichloroisocyanurate or alkali metal trichloroisocyanurate.

Treatment fluids made of halogenisocyanuric acid and its salts for operations in a well

Subterranean formation treatment methods incorporating a rheology model which enables prediction of fluid rheology properties during a treatment operation, where the foundation of the model is a description of the reaction chemistry which describes how the number of crosslinks and broken polymer linkages develops in time under the influence of crosslinkers, breakers, and/or thermally induced effects and pressure effects. In one aspect, when used as a tool for simulating the fluid viscosity, the model can help optimizing the fluid design and optional breaker schedule for a hydraulic fracturing treatment.

Method of treating a subterranean formation using a rheology model for fluid optimization

A method for treating a subterranean formation is made of steps of providing a composition comprising a carrier fluid, a polymer viscosifying agent, carbon dioxide and a formate salt or formic acid; injecting into a wellbore, the composition; contacting the composition with the subterranean formation, wherein the temperature is above 100 degrees Celsius at this contact; and allowing the composition to treat the subterranean formation.

Method of treating a wellbore at high temperature in contact with carbon dioxide

A method of treating a subterranean formation penetrated by a wellbore utilizes a treating fluid formed from an aqueous solution of a water-soluble polymer. The treating fluid further contains a crosslinking agent and an optional delayed release alkaline additive. The delayed release alkaline additive may be at least one of urea, a urea derivative, a solid alkaline earth metal carbonate, a solid alkaline earth metal oxide and combinations of these. The treating fluid further includes an acidic pH adjusting agent used in an amount to provide the treating fluid with a pH of less than about 5. The treating fluid is then introduced into the formation.

Method of treating subterranean formation with crosslinked polymer fluid

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Richmond, TX, United States of America

Michael D Parris