Philip F Sullivan - Bellaire TX, US Gary John Tustin - Cambridge, GB Bruno Drochon - Missouri City TX, US Marie Noelle Dessinges - Paris, FR Gregory Kubala - Houston TX, US Christelle Vatry - Notre Dame de Message, FR
Assignee:
Schlumberger Technology Corporation - Sugar Land TX
International Classification:
E21B 33/13 E21B 43/267
US Classification:
166279, 1662802, 166281, 166293, 1663085
Abstract:
A method of plugging a fracture in a subterranean formation which includes placing into the fracture a composition comprising microspheres or microbeads, wherein the microspheres are created by surface crosslinking of droplets in a water-in-water emulsion. Such microspheres may form a filter cake in the formation. The microspheres may include a chemical agent to be released when the microspheres dissolve.
Mohan K. R. Panga - Stafford TX, US Balkrishna Gadiyar - Katy TX, US Ryan Hartman - Arlington MA, US Bruno Drochon - Houston TX, US John W. Still - Katy TX, US Bryan Stamm - Houston TX, US
Assignee:
Schlumberger Technology Corporation - Sugar Land TX
International Classification:
E21B 43/04
US Classification:
166278, 166 51, 166300, 507925
Abstract:
A method is disclosed for low damage gravel packing. The method includes combining a carrier fluid, a first amount of particulates, and a second amount of particulates into a slurry. The first amount of particulates have a first average size distribution and the second amount of particulates have a second average size distribution, and the first average size distribution is at least three times larger than the second average size distribution. The slurry includes particles which are at least partially degradable material, and with reactive solid constituents. The reactive solid reacts with the degradable material and/or a hydrolysis product of the degradable material. The method further includes positioning a screen in a wellbore, and circulating the slurry through the wellbore such that the first amount of particulates and the second amount of particulates are deposited on an outer surface of the screen.
Schlumberger Technology Corporation - Sugar Land TX
International Classification:
E21B 33/13 C09K 8/467
US Classification:
166293, 166300, 106724
Abstract:
Low-density cement slurries for cementing subterranean wells are described that comprise alkali swellable polymers as thickening agents that provide slurry stability. The polymers are preferably added as liquid latex dispersions, and may also comprise a surfactant that is present at a concentration below its critical micelle concentration. Particular utility is observed when the solid-volume fraction (SVF) of the slurry is less than about 40 percent. Also described are a method for increasing the viscosity of a cement slurry and methods for cementing a subterranean well.
Methods To Reduce Settling Rate Of Solids In A Treatment Fluid
Mohan K. R. Panga - Stafford TX, US Bruno Drochon - Houston TX, US Isabelle Couillet - Kuala Lumpur, MY Juan-Carlos Santamaria - Houston TX, US Peter J. Photos - Houston TX, US John W. Still - Katy TX, US
Assignee:
Schlumberger Technology Corporation - Sugar Land TX
International Classification:
C09K 8/68 C09K 8/60 E21B 43/16
US Classification:
507203, 1663051, 507103, 507117, 507219, 507260
Abstract:
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.
Foaming Agent For Subterranean Formations Treatment, And Methods Of Use Thereof
Lijun Lin - Sugar Land TX, US Carlos Abad - Richmond TX, US Bruno Drochon - Missouri City TX, US Gregory Kubala - Houston TX, US Laura Schafer - Kuala Lumpur, MY Alejandro Pena - Ciudad Ojeda, VE Ramsey Buoy - Pasadena TX, US
Assignee:
Schlumberger Technology Corporation - Sugar Land TX
A wellbore treatment fluid is formed from an aqueous medium, a gas component, a viscosifying agent, and a surfactant. The surfactant is represented by the chemical formula:[R—(OCHCH)—O—YO]Xwherein R is a linear alkyl, branched alkyl, alkyl cycloaliphatic, or alkyl aryl group; O is an oxygen atom; Y is either a sulfur or phosphorus atom; m is 1 or more; n is a integer ranging from 1 to 3; p is a integer ranging from 1 to 4; q is a integer ranging from 0 to 1; and X is a cation. The fluid may be used in treating a subterranean formation penetrating by a wellbore by introducing the fluid into the wellbore. The fluid may be used in fracturing a subterranean formation penetrated by a wellbore by introducing the fluid into the formation at a pressure equal to or greater than the fracture initiation pressure.
Method And Composition Comprising At Least Three Different Average Particle Volume Particulates For Low Damage Gravel Packing
Mohan K. R. Panga - Stafford TX, US Balkrishna Gadiyar - Katy TX, US Ryan Hartman - Arlington MA, US Bruno Drochon - Houston TX, US John W. Still - Katy TX, US Bryan Stamm - Houston TX, US
Assignee:
Schlumberger Technology Corporation - Sugar Land TX
International Classification:
C09K 8/50 E21B 43/04
US Classification:
507203, 106 33, 166 51, 166278, 523130, 523131
Abstract:
A gravel packing system, method and slurry. The system comprises a blending device to prepare a slurry comprising a carrier fluid suspending first, second and third particulates, wherein the carrier fluid comprises a brine and less than about 2. 4 g/L (20 lb per 1000 gallons) of a viscosifier, and wherein the sum of the mass of the particulates is greater than about 2. 4 kg/L (20 pounds per gallon), wherein the first average particle volume is between 27 and 3375 times larger than the second average particle volume, which in turn is between 27 and 3375 times larger than the third average particle volume. The system can also include tubing to position a screen in the wellbore and a slurry pump to circulate the slurry from the blending device in the wellbore in any order such that the particulates are deposited in the screen annulus to form a gravel pack.
Cement Composition For Carbon Dioxide Supercritical Environment
Véronique Barlet-Gouedard - Chatenay Malabry, FR Simon James - Le Plessis-Robinson, FR Bruno Drochon - Missouri City TX, US Bernard Piot - Montrouge, FR Caritey Jean-Philippe - Le Plessis Robinson, FR
Assignee:
Schlumberger Technology Corporation - Sugar Land TX
International Classification:
E21B 33/13
US Classification:
166293, 166276
Abstract:
A cement composition resistant to carbon dioxide includes a hollow element for trapping carbonation products. The hollow element can be hollow spherical or quasi spherical particles including cenospheres, sodium-calcium-borosilicate glass microspheres, silica-alumina microspheres, or a combination thereof. Or the hollow element may be a spherical or quasi spherical void made in the set cement, for example by foaming the cement composition with a gas such as air, nitrogen or a combination thereof. The composition may be used to cement a subterranean well in which carbon dioxide is injected, stored or produced.
Christian Chouzenoux - St. Cloud, FR Brian Clark - Sugar Land TX, US Yves Manin - Le Plessis Robinson, FR Bruno Drochon - Missouri City TX, US
Assignee:
Schlumberger Technology Corporation - Sugar Land TX
International Classification:
E21B 47/00
US Classification:
16625001, 166 66
Abstract:
The present disclosure discloses a subsurface formation fluids monitoring system, and a method thereof, integrated on a casing or tubing sub having an inner and an outer surface and defining an internal cavity. The system also includes a sensor mounted on the outer surface and wireless data communication between an interrogating tool located in the internal cavity and the sensor. The system also able to provide fluid communication between the sensor and fluids of the formation with a tool that can be moved through the well to a number of locations.