Schlumberger Technology Corporation

Juan-Carlos Santamaria

Balkrishna Gadiyar

Bruno Drochon

John W Still

Mohan K R Panga

Peter J Photos

Isabelle Couillet

Philip F Sullivan

Erik B Nelson

Murtaza Ziauddin

Nitin Y Vaidya

Christopher Daeffler

Patrice Abivin

Brent Busby

Haiyan Zhao

Temiloluwa Iyenoma Yusuf

Nirupama Vaidya

Kinga Hendum

Elvin Yusifzada

A method includes placing, via a bailer, a slurry into a wellbore to deposit a slurry downhole. The slurry includes a solids mixture and a fluid. The method also includes terminating placement of the slurry for a period of time. A viscous pill inhibits settling of the solids mixture, and the slurry displaces the viscous pill in contact with a surface of a screen.

High solids content fluid techniques

Methods and compositions for treating a siliceous geologic formation are described herein. An aqueous treatment composition for treating such formations includes an acid having molecular weight less than about 200, or an ammonium or sodium salt thereof, an HF source, and from about 0.1 wt % to about 2.0 wt % of a fluoride scale inhibitor, the aqueous treatment composition having a pH from about 1.0 to about 3.0.

Method for single-stage acid treatment of siliceous subterranean formations

A method for treating a subterranean formation penetrated by a wellbore comprising combining a carrier fluid, a first amount of particulates, and a second amount of particulates into a slurry, wherein the first amount of particulates have a first average size distribution and the second amount of particulates have a second average size distribution, wherein at least one of the first amount of particulates and the second amount of particulates comprise an expanding material, placing the slurry in the wellbore, and lowering a screen into the slurry.

Methods to gravel pack a well using expanding materials

The invention discloses a method of treating a subterranean formation of a well bore: providing a treatment fluid made of: a fluid; a particulate material, and a viscosifier material; wherein the viscosifier material is inactive in a first state and is able to increase viscosity of the treatment fluid when in a second state; introducing the treatment fluid into the wellbore; and providing a trigger able to activate the viscosifier material from first state to second state.

Methods to reduce settling rate of solids in a treatment fluid

A treatment fluid that can be used for treating a subterranean formation penetrated by a wellbore is prepared from a primary treatment fluid component and an emulsion component mixed with the primary treatment fluid component. The emulsion component has an oil phase and an aqueous phase. The emulsion component comprising a source of insoluble silica particles and a source of calcium hydroxide, wherein the source of calcium hydroxide is present in the oil phase, and the source of insoluble silica particles are contained in the aqueous phase. The method is carried out by contacting at least a portion of the formation with the treatment fluid.

Control of fines migration in well treatments

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Houston, TX, United States of America

Juan-Carlos Santamaria