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Patent No. 6049912

Mountable Printable Placard With Headband

A resilient headband in a shape for being mounted on the head of the user. The headband is equipped with a longitudinal slotted member for holding a placard.

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Class 507/216 - Hydroxyalkylcellulose (e.g., HEC, etc.)


Subclass of Class 507 - Earth boring, well treating, and oil field chemistry
Definition: Compositions wherein said cellulose derivative is a hydroxyalkylcellulose
No. of patents: 223
Last issue date: 02/28/2012


1            
NumberTitleIssue Date
8124569Control of the properties of cement slurries of normal densities with optimized polymers combination
The invention discloses a cement slurry composition for cementing a well comprising: an hydraulic cement, water and a combination made of a cellulosic polymer and an acrylamido-methyl-propane sulfonate co- or ter-polymer, wherein the density of said cement slurry is...
02/28/2012
8071512Annular fluids and method of emplacing the same
An annular fluid or packer fluid, and methods of making the same, that includes a water-miscible solvent, a viscosifying additive, a crosslinking agent, a crosslinking inhibitor having the facility to inhibit crosslinking between the viscosifying additive and the cr...
12/06/2011
7829509Annular fluids and method of emplacing the same
An annular fluid or packer fluid, and methods of making the same, that includes a water-miscible solvent, a viscosifying additive, a crosslinking agent, a crosslinking inhibitor having the facility to inhibit crosslinking between the viscosifying additive and the cr...
11/09/2010
7351681Well bore servicing fluids comprising thermally activated viscosification compounds and methods of using the same
Well bore servicing fluids are provided that include a thermally activated viscosification compound. Further, methods of servicing a well bore are provided that include displacing such a servicing fluid into the well bore, wherein a viscosity of the servicing fluid ...
04/01/2008
7334640Methods for reducing the viscosity of treatment fluids
Methods of treating a subterranean formation comprising providing a viscosified treatment fluid that comprises a base fluid and a gelling agent, providing a breaker composition that comprises an oxidizing breaker and a breaker activator that comprises a metal and a ...
02/26/2008
7328756Settable fluids comprising particle-size distribution-adjusting agents and methods of use
Settable fluids comprising particle-size distribution-adjusting agents, and methods of using such settable fluids in subterranean and surface applications are provided. In certain exemplary embodiments, the settable fluid comprises a cement, a set retarder, and a pa...
02/12/2008
7306035Process for treating a formation
A method of introducing an oil field or gas field production chemical into a hydrocarbon-bearing porous subterranean formation penetrated by a wellbore comprising: injecting a gelling composition comprising an aqueous liquid, an oil field or gas field production che...
12/11/2007
7304019Concentrated suspensions
Suspensions are provided of water-soluble materials in non-aqueous carrier fluids using suspension agents that include organophilic clays. Methods of forming such suspensions are provided. Methods are also provided for using such suspensions to prepare aqueous solut...
12/04/2007
7293611CO miscible optimized hydrocarbon blends and methods of using CO miscible optimized hydrocarbon blends
A method of treating a subterranean formation comprising the steps of providing a servicing fluid comprising carbon dioxide and a hydrocarbon blend, wherein the hydrocarbon blend comprises at least about 65% hydrocarbons having from six carbons (C6) to el...
11/13/2007
7290611Methods and systems for cementing wells that lack surface casing
Methods and systems for cementing casing in well bores drilled in subterranean formations, and more particularly, methods and systems for cementing casing in a well bore without surface casing or a well head are provided. A method provided herein may comprise sealin...
11/06/2007
7284611Methods and compositions for controlling lost circulation in subterranean operations
A lost circulation composition, that comprises a first portion of particles having a weight mean particle size of less than about 20 microns, a second portion of particles having a weight mean particle size in the range of from about 25 microns to about 400 microns,...
10/23/2007
7285164Fluid loss additives for cement slurries
Methods for cementing in a subterranean zone, which use a cement composition that includes zeolite, cementitious material, proportioned fluid loss control additives and a mixing fluid. Cement compositions containing proportioned fluid loss control additives, and met...
10/23/2007
7285165Cement compositions comprising set retarder compositions and associated methods
Cement compositions are provided that comprise a hydraulic cement, water, and a set retarder composition, the set retarder composition comprising an acrylamide polymer derivative; and an iron compound. In some embodiments, cement compositions are provided that compr...
10/23/2007
7276466Compositions and methods for reducing the viscosity of a fluid
The present invention relates to improved methods and compositions for reducing the viscosity of subterranean servicing fluids where the servicing fluid has been cross-linked to increase its viscosity and that crosslinking can be reversed using a delayed release aci...
10/02/2007
7275596Method of using degradable fiber systems for stimulation
A method for minimizing the amount of metal crosslinked viscosifier necessary for treating a wellbore with proppant or gravel is given. The method includes using fibers to aid in transporting, suspending and placing proppant or gravel in viscous carrier fluids other...
10/02/2007
7271133Methods and compositions for treating subterranean formations
Methods for treating subterranean formations and aqueous treating fluid compositions are provided. The aqueous treating fluid compositions comprise water, a water soluble hydrophobically modified gelling agent polymer produced by grafting a low concentration of hydr...
09/18/2007
7267174Methods of plugging a permeable zone downhole using a sealant composition comprising a crosslinkable material and a reduced amount of cement
A method of servicing a wellbore, comprising preparing a sealant composition comprising a crosslinkable material, a crosslinking agent, a fluid loss control additive, and water, placing the sealant composition in a permeable zone in the wellbore, and allowing the se...
09/11/2007
7268100Shale inhibition additive for oil/gas down hole fluids and methods for making and using same
An under-balanced drilling fluid additive is disclosed which reduces reactive shale and/or clay swelling during under-balanced drilling operations, where the additive includes an effective amount of a choline salt. A method for under-balanced drilling is also disclo...
09/11/2007
7264054Fluids comprising zirconium isopropylamine crosslinking agents and associated methods
A method of treating a subterranean formation is provided, the method may comprise providing a fluid comprising an aqueous fluid, a gelling agent, and a zirconium triisopropylamine crosslinking agent; and introducing the fluid into a well bore that penetrates the su...
09/04/2007
7262154Methods and compositions for breaking viscosified fluids
Improved methods for treating and for fracturing subterranean formations and the fluid compositions are provided. The viscosity of a treating fluid containing gelling agents is broken, even at temperatures of about 250° F. and lower, utilizing an oxidizing breaker ...
08/28/2007
7229492Cement compositions comprising improved lost circulation materials and methods of use in subterranean formations
Cement compositions that include improved lost circulation materials are provided. In certain exemplary embodiments, the improved lost circulation materials include inelastic particles of polyethylene, polystyrene, and/or polypropylene. Optionally, the cement compos...
06/12/2007
7216704Methods and compositions for breaking viscosified fluids
Improved methods for treating and for fracturing subterranean formations and the fluid compositions are provided. A method presented herein is a method of reducing the viscosity of a viscosified treatment fluid that comprises providing a viscosified treatment fluid ...
05/15/2007
7214647Method of increasing the low shear rate viscosity of well drilling and servicing fluids containing calcined magnesia bridging solids, the fluids and methods of use
The invention provides well drilling and servicing fluids, and methods of drilling, completing, or working over a well therewith, preferred fluids comprise an aqueous liquid, a water soluble polymer viscosifier (preferably xanthan gum), a polymeric fluid loss contro...
05/08/2007
7213645Methods of improving well bore pressure containment integrity
Methods of improving the pressure containment integrity of subterranean well bores are provided. The methods include pumping a fracture sealing composition into the well bore that rapidly converts into a high friction pressure sealing composition which is impermeabl...
05/08/2007
7211546Method of increasing the low shear rate viscosity of well drilling and servicing fluids containing calcined magnesia bridging solids, the fluids and methods of use
The invention provides well drilling and servicing fluids, and methods of drilling, completing, or working over a well therewith, preferred fluids comprise an aqueous liquid, a water soluble polymer viscosifier (preferably xanthan gum), a polymeric fluid loss contro...
05/01/2007
7198104Subterranean fluids and methods of cementing in subterranean formations
Subterranean fluids, and more particularly, subterranean fluids comprising a hydraulic cement in an invert emulsion, and methods of using such fluids in subterranean operations, are provided. An example of these methods is a method of cementing a well bore. Another ...
04/03/2007
7199084Concentrated suspensions
Suspensions are provided of water-soluble materials in non-aqueous carrier fluids using suspension agents that include thixotropic agents and, optionally, organophilic clays. Methods of forming such suspensions are provided. Methods are also provided for using such ...
04/03/2007
7156172Method for accelerating oil well construction and production processes and heating device therefor
Methods are described for providing localized heating in an oil well at precise depths to accomplish or expedite specific objectives. The methods involve the use of a heating tool which can be lowered into an oil well to apply heat at a precise depth to achieve a de...
01/02/2007
7150321Zeolite-containing settable spotting fluids
Methods and compositions for wellbore treating fluids, especially settable spotting fluids, that include zeolite and at least one carrier fluid. ...
12/19/2006
7147705Methods, cement compositions and oil suspensions of powder
Methods, cement compositions and oil suspensions of powders selected from the group consisting of micro-silica, silica flour, fine silica flour, silica sand, fine particle size cement, ultra-fine particle size cement, fly ash, slag, vitrified shale and zeolite. ...
12/12/2006
7147067Zeolite-containing drilling fluids
Methods and compositions for wellbore treating fluids, especially drilling fluids, that comprise zeolite and a carrier fluid. ...
12/12/2006
7147056Subterranean fluids and methods of using these fluids in subterranean formations
The present invention provides subterranean fluids comprising a hydraulic cement in an invert emulsion, and methods of using such fluids in subterranean well cementing operations. The fluids comprise a hydraulic cement and an invert emulsion of oil, water, and a sur...
12/12/2006
7143828Emulsion admixtures for improving cement elasticity
Methods and cement compositions for sealing a subterranean zone penetrated by a wellbore. The cement compositions include cementitious material, a polymer emulsion and a mixing fluid. The polymer emulsion includes at least one polar monomer and at least one elastici...
12/05/2006
7144844Method of using viscoelastic vesicular fluids to enhance productivity of formations
A process for enhancing the productivity of a formation consists of introducing into the formation a viscoelastic fluid which contains at least one surfactant, at least one quaternary amine polyelectrolyte, water, and a non-aqueous solvent. The surfactant forms aggr...
12/05/2006
7140440Fluid loss additives for cement slurries
Methods for cementing in a subterranean zone, which use a cement composition that includes zeolite, cementitious material, proportioned fluid loss control additives and a mixing fluid. Cement compositions containing proportioned fluid loss control additives, and met...
11/28/2006
7140439Zeolite-containing remedial compositions
Methods and compositions for wellbore treating fluids, especially remedial compositions such as pills, that include zeolite and at least one carrier fluid. ...
11/28/2006
7115546Acid diverting system containing quaternary amine
A process for stimulating a formation is disclosed wherein a diverting fluid is used to divert an acid treatment package from a high permeability or damaged portion of a formation to a low permeability or undamaged portion of a formation. The fluid, which preferably...
10/03/2006
7114570Methods and compositions for stabilizing unconsolidated subterranean formations
Methods of stabilizing subterranean formations and methods of reducing the production of particulates from subterranean formations are provided, which are useful in conjunction with subterranean formations surrounding wellbores and fractures. The methods comprise th...
10/03/2006
7096947Fluid loss control additives for use in fracturing subterranean formations
The present invention relates to subterranean fracturing operations, and more particularly to fracturing fluids that includes a fluid loss control additive, and methods of using such fracturing fluids in fracturing subterranean formations. In one embodiment, a fract...
08/29/2006
7087556Compositions for treating subterranean zones penetrated by well bores
The present invention provides compositions of treating subterranean zones penetrated by well bores in primary well cementing operations, well completion operations, production stimulation treatments and the like. The invention includes aqueous well treating fluids ...
08/08/2006
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