Clearwater, Inc.

Clearwater International LLC

Highland Fluid Technology, Inc.

Total Separation Solutions, LLC

Weatherford/lamb, Inc.

Scidev Energy Services, Inc.

Smart Chemical Services, LP

Other

Halliburton Energy Services, Inc.

Wsp Chemicals & Technology, LLC

Ethicon Endo-surgery, Inc.

Covidien Ag

Edwards Lifesciences Cardiaq LLC

Edwards Lifesciences Ag

Kevin W. Smith

Kevin W Smith

Matthew P Palmer

Thomas O Bales

Jiten Chatterji

Jeffrey David Messerly

Matthew A Palmer

Derek Dee Deville

Carlos Rivera

Larry W Gatlin

Juergen Andrew Kortenbach

Richard Cartledge

Korey R Kline

Korey Robert Kline

Max Pierre Mendez

Leonard J Persinski

Robert L Sloan

John H Hallman

M Sean Mcbrayer

Harry D Smith, Jr

Jose Luis Francese

Todd R Thomas

Jack Curr

Joseph Miller

Sean Mcbrayer

Robert Sixto

Shih-Ruey Tom Chen

George A Nunez

Scott R Arp

Shawn Lu

Jimmy Poindexter

Jeffrey Snider

Jeff Fair

Korey Kline

Thomas Bales

Jeffrey John Lembcke

Peter K Kratsch

Kevin W Frederick

Michael Walter Kirk

Jeffrey Bode

Randy J Loeffler

Ming H Wu

Valentino L DeVito

Steven Charles Kennedy

Wayne Mueller

Mark E Stanley

Benjamin R Luscomb, Iii

Lori Acor

Richard J Delaloye

Kevin N Schwartz

Kristin Nicole Werner Dawson

Steve Turk

Kevin M Schwartz

Kevin Dang

Jr Bales Thomas O

Brian Janish

Eric Peterson

Bobby J King

David Michael Haugen

Thomas Floyd Bailey

D Chad Brenneis

Roger Stanley Cromwell

Manouchehr A Miraki

David J Brunnert

Dennis Willie Gray

Barry Thomas Jamison

Frederick Thomas Tilton

Ronald J Crook

Jason Holt

Ram Kumar Bansal

James L Greene

Graham Alexander Skinner

Tom Fuller

Rusty R Mackey

Roy W Rooyakkers

Mark J Wanner

George Nunez

Manouchehr Miraki

John Henry Hallman

Jorge Jimenez

Robert Jr Sixto

Geroge Nunez

Chester O Baxter

A chemical compositional to be pumped throughout the stimulation job, which includes while pumping proppant. The surfactant within the chemical composition causes the chemistry to adhere to the proppant, and the surfactant should be added into the stimulation job while the proppant is being pumped because the proppant is water-wet and free of any produced oil to decrease the amount of water flowing through the proppant while allowing vicious oil to flow through the proppant.

Methods and systems associated with improved estimated ultimate recovery (EUR) additive through proppant packs

Viscosity and other properties are determined at desired temperatures in drilling mud and other fluids by using a versatile cavitation device which, operating in the cavitation mode, mixes and heats the fluid to a specified temperature, and, operating in the shear mode, acts as a spindle for application of Couette principles to determine viscosity as a function of shear stress and shear rate. The invention obviates the practice of adjusting rheology of a drilling fluid by passing it through the drill bit. Drilling fluid may be managed by a 'straight-through' method to the well, or by placing the cavitation device in a loop which isolates an aliquot of known volume and circulating the fluid through the loop including the cavitation device. A controller may be programmed to manage the viscosity and other properties at various temperatures by controlling the power input and angular rotation of the 'spindle' (which has cavities on its cylindrical surface), and feeding viscosity-adjusting agents and other additives to the fluid. Data may be collected from the loop and used in the &#x201c;straight-through&#x201d; mode until it is determined that conditions require a new set of data, or the loop may be used continuously. The system may be used with a supplemental viscometer, density meter, and other instruments.

Optimizing drilling mud shearing

Forming a hydrogel in-situ downhole by pumping multiple polymers together that synergistically work together to reduce the flow of water through a proppant pack

Methods and systems for adding functionality for cross linked polymers in a wellbore environment

A very light weight, noncompressible drilling fluid including a very light weight hydrocarbon base liquid, and a styrenic butadiene diblock copolymer is heated to achieve excellent rheology including thixotropicity, making an effective drilling fluid with a density of 8 pounds per gallon or less. Densities as low as 4 pounds per gallon are achieved with the addition of glass bubbles. The glass bubbles may, but normally will not, exceed 50% by volume. A method of making the drilling fluid includes passing the light weight liquid and the copolymer through a cavitation device. The invention includes drilling and with and recirculating the fluid to maintain the desired density, viscosity and rheology by adjusting the ingredients accordingly. A method of managed pressure drilling employs the novel fluid, enabling control of drill pressure and physical properties of the fluid including equivalent circulating density.

Managed pressure drilling with novel noncompressible light weight fluid

Heavy fluids are made from calcium bromide and at least one hydrogen bond donor such as a low molecular weight polyol or an organic acid. The combination of a hydrogen bond donor and calcium bromide as a hydrogen bond acceptor in an appropriate molar ratio forms a higher density clear completion fluid at a low temperature not otherwise obtainable with heavy aqueous solutions of calcium bromide such as are used in oilfield wells. A method of making the fluid comprises mixing calcium bromide with the polyol(s) in the presence of water and then reducing the water content, thus forming a heavy fluid. A crystallization inhibitor such as nitrilotriacetamide or a particulate silicate is included in the formulation. When the heavy fluid 'freezes,' its physical form is somewhat amorphous and pumpable rather than crystalline. The heavy fluid is useful as a drilling fluid as well as a completion fluid and for other purposes in oil recovery processes where extreme density is beneficial.

Heavy fluid and method of making it

An improved cavitation mixing and heating device employs an inlet directed toward the vertex of a conical or similar flow-directing element. The flow patterns of the fluid material to be mixed and heated are designed to preheat, spread, and create turbulent flow mixing of the fluid before it enters the cavitation zone, using heat generated in the cavitation zone that is conducted through the body of the cavitation rotor. The functions of the axially oriented inlet and flow directing element are assisted by a cantilever construction to alleviate stress on the bearings.

Cavitation device

A cavitation device is supplied by a disc pump with fluids for mixing. A cavitation rotor, having an array of cavities on its cylindrical surface, is fixed to a shaft for rotation by a motor. The disc pump and the cavitation device are beneficially in the same housing. At least one disc is spaced from and attached to the rotor near the inlet end of the cylindrical housing, so it will rotate with the rotor. A central hole in the (at least one) disc permits fluid to enter the space between the disc and the rotor; it is flung toward the peripheral space between the rotor and the cylindrical housing, where it is subjected to cavitation, and then passed to an outlet. The shaft may pass through one or both of the end walls of the cylindrical housing. The cavitation pump is especially useful for mixing oil field fluids.

Cavitation pump

A composition comprising a water-soluble powder that is agglomerated by a water-soluble wax, which is then allowed to cool and re-solidify to product clusters of the water-soluble powder.

Methods and systems to rapidly hydrate dry polyacrylamides polymers in a chemical delivery matrix

Viscosity and other properties are determined at desired temperatures in drilling mud and other fluids by using a versatile cavitation device which, operating in the cavitation mode, mixes and heats the fluid to a specified temperature, and, operating in the shear mode, acts as a spindle for application of Couette principles to determine viscosity as a function of shear stress and shear rate. The invention obviates the practice of adjusting rheology of a drilling fluid by passing it through the drill bit. Drilling fluid may be managed by a 'straight-through' method to the well, or by placing the cavitation device in a loop which isolates an aliquot of known volume and circulating the fluid through the loop including the cavitation device. A controller may be programmed to manage the viscosity and other properties at various temperatures by controlling the power input and angular rotation of the 'spindle' (which has cavities on its cylindrical surface), and feeding viscosity-adjusting agents and other additives to the fluid. Data may be collected from the loop and used in the 'straight-through' mode until it is determined that conditions require a new set of data, or the loop may be used continuously. The system may be used with a supplemental viscometer, density meter, and other instruments.

A method is described of mixing fluid materials, including solids and gases. The materials to be mixed are introduced between two cylindrical rotors mounted in parallel on a motorized shaft. The rotors have arrays of cavities on their cylindrical surfaces and rotate within close proximity to the interior of a cylindrical shell. Passage of the fluid between the rotating rotors and the interior surface of the cylindrical shell causes cavitation, which mixes the materials. The mixture is passed to outlets on the far sides of the rotors from the inlet. Apparatus is described for extending the flow path of the materials and thus increasing exposure to the cavitation process.

Central entry dual rotor cavitation

Degeneration of shale caused by oxygen in aqueous drilling, fracturing and completion fluids is minimized by introducing imidazolines modified so that they will be attracted efficiently to pyrites in the shale, thereby forming a protective coating on the pyrites. Inhibiting oxidation of the pyrites sharply reduces physical degradation of the shale, and the generation of undesirable oxides, in the presence of drilling, fracturing and completion fluids carrying oxygen. The imidazoline is an ionic salt of a monocarboxylic acid.

Constraining pyrite activity in shale

Growing community of inventors

Houston, TX, United States of America

Kevin W Smith