Did You Know...
...that the Slinky toy was the result of a failed attempt by engineer Richard James to produce an antivibration device for ship instruments? His goal was to develop a spring that would instantaneously counterbalance the wave motion that rocks a ship at sea. Instead, he developed the Slinky.
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| Number | Title | Issue Date |
| 7402204 | Flexible cementing compositions and methods for high-temperature wells A well cementing composition comprises an hydraulic cement and flexible, acrylonitrile-butadiene copolymer particulate material. A method of cementing a well comprises mixing the composition with sufficient water, and optionally, other additives to form a pumpable s... | 07/22/2008 |
| 7387674 | Method for solidifying soil and industrial waste, and solidified materials prepared thereby Disclosed herein are a method for solidifying soil and industrial waste and a solidified material prepared thereby. The solidified material of soil and industrial waste is prepared by adding 2-6 parts by weight of a 3-5-fold dilution of a solidifying agent and 3-15 ... | 06/17/2008 |
| 7360598 | Method of using lignite grafted fluid loss control additives in cementing operations Methods of cementing in a subterranean formation are provided. An exemplary embodiment comprises introducing a cement composition into a subterranean formation. The cement composition comprises water, a cement and a fluid loss control additive comprising a graft pol... | 04/22/2008 |
| 7285165 | Cement 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 |
| 7276114 | Method for making a road base material using treated oil and gas waste material The present invention provides a novel method to produce grade road base material using recycled oilfield waste, called “oil and gas waste,” more specifically, drilling waste and aggregate and a novel road base material. Hydration and mixing of the waste materia... | 10/02/2007 |
| 7270182 | Earth loop installed with sonic apparatus A method for installing a heat exchange pipe loop in a borehole, the method, in at least certain aspects, including drilling a borehole with a sonic drill system having a head and casing connected thereto, a drill apparatus on a lower end of the casing movable by th... | 09/18/2007 |
| 7238733 | Storable water-silica suspensions and methods Storable water-silica suspensions and methods of cementing well bores are provided. The storable water-silica suspensions are basically comprised of water, silica and an effective amount of a suspending agent selected from the group consisting of colloidal materials... | 07/03/2007 |
| 7201798 | Set-delayed cement compositions comprising hydrated lime and silica and methods of cementing in subterranean formations Cement compositions for use in subterranean formations are provided. An example of a cement composition is a cement composition comprising: water, a cementitious component consisting essentially of: hydrated lime, and silica; and a dispersant. Another example of a c... | 04/10/2007 |
| 7192221 | System for preventing seismic liquefaction of ground in urbanized area A system for preventing seismic liquefaction of the ground in an urban area built on reclaimed land consisting of a loose fine grained layer vulnerable to liquefaction underlain with a soft cohesive layer liable to uneven settlement. The system includes a plurality ... | 03/20/2007 |
| 7156174 | Contained micro-particles for use in well bore operations The present invention relates to well bore operations, and more particularly, to contained micro-particles, and methods for using such contained micro-particles in cementing operations. An exemplary method of facilitating the use of micro-particles in a well bore fl... | 01/02/2007 |
| 7146823 | Horizontal and vertical direct exchange heating/cooling system sub-surface tubing installation means A sub-surface geothermal direct exchange sub-surface tubing installation means, comprising situating certain specified tubing sizes for certain specified horizontal distances and for certain specified depths within each of a horizontally oriented trench and a vertic... | 12/12/2006 |
| 7147707 | Composite for building material, and method of manufacturing building material using the same To provide a composite for a building material capable of manufacturing a building material that is harmless to living environment and global environment and can be recycled. The composite for a building material contains diatomaceous earth, waste lumber, and inorga... | 12/12/2006 |
| 7118624 | Method for making a road base material using treated oil and gas waste material The present invention provides a novel method to produce grade road base material using recycled oilfield waste, called “oil and gas waste,” more specifically, drilling waste and aggregate and a novel road base material. Hydration and mixing of the waste materia... | 10/10/2006 |
| 7093657 | Earth loop installed with sonic apparatus A method for installing a heat exchange pipe loop in a borehole, the method, in at least certain aspects, including drilling a borehole with a sonic drill system having a head and casing connected thereto, a drill apparatus on a lower end of the casing movable by th... | 08/22/2006 |
| 7073585 | Cement compositions with improved fluid loss characteristics and methods of cementing in surface and subterranean applications Cement compositions comprising an improved fluid loss control additive, and methods for cementing using such cement compositions, are provided herein. Exemplary embodiments of the cement compositions comprise a hydraulic cement, water, and a fluid loss control addit... | 07/11/2006 |
| 7067004 | Grout compositions having high thermal conductivities and methods of using the same Grout slurries are provided that have high thermal conductivities of greater than about 1.4 Btu/hr-ft-° F. and low hydraulic conductivities ranging from about 5×10−9 cm/s to about 1×10−8 cm/s. Such grout slurries comprise water and a grout composition that is... | 06/27/2006 |
| 7064161 | Acrylic copolymer agents based on urethane for improving the workability of hydraulic binders, preparation method, binders containing same and uses thereof The invention relates to the technical field of mortars, concretes, and other compositions based on cement, and in particular to agents capable of modifying their rheological characteristics, in particular workability. Workability may be defined as the property of a... | 06/20/2006 |
| 7063153 | Methods and compositions for cementing wells Methods of cementing subterranean zones penetrated by well bores and well cement compositions. A well cement composition of the invention basically comprises a hydraulic cement, water in an amount sufficient to form a pumpable slurry and a fluid loss control polymer... | 06/20/2006 |
| 7048054 | Cement compositions containing coarse barite, process for making same and methods of cementing in a subterranean formation Cement comprising barite, a process for preparing such cement, and methods of cementing in a subterranean formation or well bore using such cement are provided. The cement is prepared by introducing coarse barite to the cement, the course barite comprising particles... | 05/23/2006 |
| 7030184 | Method for improving the mechanical strength of cement matrices, and cement matrices produced thereby The mechanical property known as “strength at young ages” of cement matrices or hydraulic binders may be significantly improved by adding dispersions of mineral fillers and dispersing agents. The dispersing agents of the present invention comprise copolymers pre... | 04/18/2006 |
| 7021380 | Compositions comprising set retarder compositions and associated methods Cement compositions comprising set retarder compositions, and methods of using the cement compositions in surface and subterranean applications are provided. In some embodiments, cement compositions are provided that comprise a hydraulic cement comprising an API cem... | 04/04/2006 |
| 7019046 | Aqueous suspension agent for water insoluble compounds This invention relates to an improved aqueous suspension concentrate for water insoluble chemicals comprising a mixture of an anionic suspension agent and a homo- and/or a co-polymer of a heterocyclic vinyl lactam combined in a mole ratio of between about 0.1:1 and ... | 03/28/2006 |
| 7011475 | Method for preventing seismic liquefaction of ground in urbanized area and facilities used in this method A method of preventing seismic liquefaction of the ground in an urban area built on reclaimed land consisting of a loose fine grained layer vulnerable to liquefaction underlain with a soft cohesive layer liable to uneven settlement comprising pumping out pore water ... | 03/14/2006 |
| 6989057 | Zeolite-containing cement composition A method and cement composition is provided for sealing a subterranean zone penetrated by a well bore, wherein the cement composition comprises zeolite, cementitious material, and water sufficient to form a slurry. ... | 01/24/2006 |
| 6983800 | Methods, cement compositions and oil suspensions of powder Methods, cement compositions and oil suspensions of powders are provided. The oil suspensions of silica powder comprise silica powder, mineral oil, an oleophilic clay, an oleophilic surfactant and a hydrophilic surfactant. ... | 01/10/2006 |
| 6972048 | Cement paint It is disclosed a cement paint comprising a pigmenting substance (2), a cement binder (6) and a fluidizing liquid (4) and further comprising: a calcareous aggregate (7) including calcareous granules of calcium carbonate CaCO3 h... | 12/06/2005 |
| 6960624 | Method of improving the mechanical strength, particularly the strength “at young ages” of cement matrices, and the cement matrices obtained thereby Cements or hydraulic binders may be prepared by adding an aqueous suspension comprising a ground mineral filler and at least one grinding aid agent to a cement or hydraulic binder. The resulting cement or hydraulic binder has very appreciably improved mechanical pro... | 11/01/2005 |
| 6955219 | Earth loop installation with sonic drilling A method for installing a heat exchange pipe loop in a borehole, the method in at least certain aspects, including drilling a borehole with a sonic drill system having a head and casing connected thereto, a drill shoe on a lower end of the casing movable by the soni... | 10/18/2005 |
| 6893496 | Cement compositions and admixtures therefore Blended cement compositions for mixture with aggregate and water to prepare cementitious products. Such blended cement compositions contain cement, calcined diatomaceous earth, calcined kaolin, fiberous material and reactive vinyl acetate co-polymers, with or withou... | 05/17/2005 |
| 6824606 | Additive for special plasters and mortars, compositions containing the additive and utilization of the additive in special plasters and mortars A water retaining additive for conglomerate building materials, free of cellulose-like derivatives, that comprises at least a rheological grade clay, preferably sepiolite, and a modified natural gum such as guar gum, as well as conglomerate compositions that contain... | 11/30/2004 |
| 6824607 | Cement-bound active substance The invention relates to a novel cement-bound material with a mineral binding agent, a mineral filler and/or mineral aggregates. Said cement-bound material has a proportion of a mass hydrophobing agent comprised of stearates, siliconates, silanes or siloxanes rangin... | 11/30/2004 |
| 6814145 | Shear-sensitive plugging fluid for plugging and a method for plugging a subterranean formation zone A plugging fluid for plugging a subterranean formation zone surrounding a drill hole comprises an emulsion comprising a dispersed aqueous phase containing an aqueous base and a continuous hydrophobic phase containing a polymer consisting of a grafted cellulose ether... | 11/09/2004 |
| 6752866 | Method for improving the mechanical strength of cement matrices, and cement matrices produced thereby The mechanical property known as “strength at young ages” of cement matrices or hydraulic binders may be significantly improved by adding dispersions of mineral fillers and dispersing agents. The dispersing agents of the present invention comprise copolymers pre... | 06/22/2004 |
| 6739806 | Cement compositions with improved fluid loss characteristics and methods of cementing in subterranean formations The present invention provides cement compositions comprising an improved fluid loss control additive, and methods for cementing in a subterranean formation using such cement compositions. The cement compositions comprise a hydraulic cement, water, and a fluid loss ... | 05/25/2004 |
| 6713553 | Method for improving the mechanical strength, particularly the strength “at the young ages” of cement matrices, and the cement matrices obtained thereby Cements or hydraulic binders may be prepared by adding an aqueous suspension comprising a ground mineral filler and at least one grinding aid agent to a cement or hydraulic binder. The resulting cement or hydraulic binder has very appreciably improved mechanical pro... | 03/30/2004 |
| 6706108 | Method for making a road base material using treated oil and gas waste material The present invention provides a novel method to produce grade road base material using recycled oilfield waste, called “oil and gas waste,” and aggregate waste and a novel road base material. Hydration and mixing of the waste materials along with a binder, will... | 03/16/2004 |
| 6695545 | Soil stabilization composition A soil stabilization composition is provided for enhancing compaction and reducing permeability of different types of soil. The composition includes an acrylic copolymer resin, an enzyme and portland cement. The proportions of resin enzyme and cement will... | 02/24/2004 |
| 6660799 | Acrylic copolymer agents based on urethane for improving the workability of hydraulic binders, preparation method, binders containing same and uses thereof The invention relates to the technical field of mortars, concretes, and other compositions based on cement, and in particular to agents capable of modifying their rheological characteristics, in particular workability. Workability may be defined as the pr... | 12/09/2003 |
| 6645289 | Complex admixture and method of cement based materials production The present invention relates to admixtures production and to a method of application of the admixtures in cement and concrete technology. The method allows production of high-strength and high durable cement based systems, as well as cement systems with ... | 11/11/2003 |
| 6641660 | Stable well cementing methods and compositions The present invention provides stable well cementing methods and compositions for sealing subterranean zones penetrated by well bores. The improved thermally stable and degradation resistant well cement compositions are basically comprised of a hydraulic ... | 11/04/2003 |
