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| Number | Title | Issue Date |
| 7380601 | 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... | 06/03/2008 |
| 7343973 | Methods of stabilizing surfaces of subterranean formations A method of treating a subterranean formation or of stabilizing a surface within a subterranean fracture comprising: providing a treatment fluid comprising lightweight proppant at least partially coated with an adhesive substance; introducing the treatment fluid int... | 03/18/2008 |
| 7341104 | Methods of using substantially hydrated cement particulates in subterranean applications Fracturing fluids comprising a base fluid and substantially hydrated cement particulates. Methods of fracturing a subterranean formation comprising fracturing the subterranean formation so as to create or enhance one or more fractures in the subterranean formation; ... | 03/11/2008 |
| 7308939 | Methods of using polymer-coated particulates Methods are provided including a method comprising: providing a treatment fluid comprising particulates at least partially coated with a polymer, wherein the polymer is deposited on the particulates by at least partially coating the particulates with a polymer solut... | 12/18/2007 |
| 7299869 | Carbon foam particulates and methods of using carbon foam particulates in subterranean applications The present invention relates to carbon foam particulates and their use in subterranean applications such as production enhancement and completion. One embodiment of the present invention provides a method of treating a subterranean formation using a servicing fluid... | 11/27/2007 |
| 7281580 | High porosity fractures and methods of creating high porosity fractures The present invention relates to high porosity propped fractures and methods of creating high porosity propped fractures in portions of subterranean formations. Another embodiment of the present invention provides a method of forming a high porosity propped fracture... | 10/16/2007 |
| 7264052 | Methods and compositions for consolidating proppant in fractures Improved methods and compositions for consolidating proppant in subterranean fractures are provided. In certain embodiments, the hardenable resin compositions may be especially suited for consolidating proppant in subterranean fractures having temperatures above abo... | 09/04/2007 |
| 7264051 | Methods of using partitioned, coated particulates Methods of treating a portion of a subterranean formation comprising: providing partitioned, coated particulates that comprise particulates, an adhesive substance, and a partitioning agent, and wherein the adhesive substance comprises an aqueous tackifying agent or ... | 09/04/2007 |
| 7261157 | Methods of controlling particulate segregation in slurries Methods for controlling particulate segregation comprising providing a mixture of an aqueous tackifying composition with a treatment fluid; slurrying the mixture with a first type of solid particulates and a second type of solid particulates and wherein the first ty... | 08/28/2007 |
| 7261156 | Methods using particulates coated with treatment chemical partitioning agents Methods of treating a portion of a subterranean formation comprising: providing partitioned, coated particulates that comprise particulates, an adhesive substance, and a partitioning agent, and wherein the partitioning agent comprises a subterranean treatment chemic... | 08/28/2007 |
| 7255169 | Methods of creating high porosity propped fractures Methods of forming a high porosity propped fracture comprising: providing a slurry comprising a fracturing fluid, proppant particulates, and a weighting agent; introducing the slurry into a portion of a fracture within the subterranean formation; and, depositing the... | 08/14/2007 |
| 7228904 | Compositions and methods for improving fracture conductivity in a subterranean well The invention relates to enhancing the conductivity of fractures in a subterranean formation so as to enhance fluid flow therethrough. In one embodiment, the present invention provides a method comprising: providing a proppant matrix composition, the proppant matrix... | 06/12/2007 |
| 7210528 | Method of treatment subterranean formations using multiple proppant stages or mixed proppants An increase in effective propped lengths is evidenced in hydraulic fracturing treatments by the use of ultra lightweight (ULW) proppants. The ULW proppants have a density less than or equal to 2.45 g/cc and may be used as a mixture in a first proppant stage wherein ... | 05/01/2007 |
| 7207386 | Method of hydraulic fracturing to reduce unwanted water production A method of hydraulically fracturing a hydrocarbon-bearing subterranean formation ensures that the conductivity of water inflow below the productive zone of the subterranean formation is reduced. The method consists of two principal steps. In the first step, a fract... | 04/24/2007 |
| 7205262 | Friction reducing composition and method Water soluble nonionic friction reducers and added to coacervate gels having excellent shear viscosities and other properties. A preferred gel comprises poly diallyl dimethyl ammonium chloride, a lesser amount of sodium lauryl sulfonate, and lauryl alcohol. Excellen... | 04/17/2007 |
| 7178596 | Methods for improving proppant pack permeability and fracture conductivity in a subterranean well The present invention provides compositions and methods for enhancing subterranean well productivity by enhancing fracture conductivity. A method of increasing the conductivity of a fracture in a portion of a subterranean formation comprising providing a slurry comp... | 02/20/2007 |
| 7168489 | Orthoester compositions and methods for reducing the viscosified treatment fluids In one embodiment, the present invention provides a method of reducing the viscosity of a viscosified treatment fluid comprising contacting the viscosified treatment fluid with an acid generated from an orthoester composition that comprises an orthoester. In another... | 01/30/2007 |
| 7160844 | Proppants and their manufacture Small spheres, commonly referred to as proppants, are manufactured from sol-gel ceramics, preferably aluminosilicates or phosphates, and include chemical composites termed geopolymers. In the preferred manufacturing process, the required chemical components are blen... | 01/09/2007 |
| 7140438 | Orthoester compositions and methods of use in subterranean applications The present invention relates to methods and compositions for treating subterranean formations, and more specifically, to improved methods and compositions for generating acids for use downhole, for example, to at least partially degrade the acid-soluble portions of... | 11/28/2006 |
| 7132389 | Acid-coated sand for gravel pack and filter cake clean-up A method of the preparation and utilization of polymerized alpha-hydroxycarboxylic-acid-coated proppants for gravel pack and removal of filter cake that was deposited by reservoir drilling fluid. In a preferred example, polyglycolic-acid-coated sand is used to repla... | 11/07/2006 |
| 7080688 | Compositions and methods for degrading filter cake Improved methods and compositions for degrading filter cake deposited in a subterranean formation are provided. These methods and compositions utilize particulates coated with acid-releasing degradable material wherein the released acid is used to degrade a filter c... | 07/25/2006 |
| 7066258 | Reduced-density proppants and methods of using reduced-density proppants to enhance their transport in well bores and fractures The present invention provides reduced-density coated particulates and methods for enhancing the transport of such particulates into well bores and fractures, and for enhancing the conductivity and permeability of subterranean formations using such particulates, and... | 06/27/2006 |
| 7066260 | Dissolving filter cake Methods are presented to induce a screenout during a subterranean formation fracturing or combined fracturing and gravel packing treatment having a viscoelastic surfactant-based carrier fluid by laying down a filter cake at least a portion of which is a base-soluble... | 06/27/2006 |
| 7067445 | Extended particle size distribution ceramic fracturing proppant A proppant mixture with an extended particle size distribution exhibits improved properties, such as crush strength and conductivity, as compared with a conventional product with a narrow size distribution. ... | 06/27/2006 |
| 7063151 | Methods of preparing and using coated particulates The present invention involves methods of preparing coated particulates and using such coated particulates in subterranean applications such as production enhancement and sand control. One embodiment of the present invention provides a method of preparing coated par... | 06/20/2006 |
| 7044220 | Compositions and methods for improving proppant pack permeability and fracture conductivity in a subterranean well The present invention relates to enhancing fluid flow from subterranean formations. More particularly, this invention relates to providing improved proppant matrixes within fractures in a subterranean formation. An example of the methods of increasing the conductivi... | 05/16/2006 |
| 7036591 | Low density proppant A low density, spherical proppant made from kaolin clay having an alumina content distributed homogeneously throughout the pellets, an apparent specific gravity of from about 1.60 to about 2.10 g/cc, and a bulk density of from about 0.95 to about 1.30 g/cc. The low ... | 05/02/2006 |
| 7032667 | Methods for enhancing the consolidation strength of resin coated particulates The present invention involves enhancing the conductivity of subterranean propped fractures penetrating formations while controlling proppant flowback. More particularly, the present invention relates to improved consolidation performance of resin-coated proppants a... | 04/25/2006 |
| 7032662 | Method for determining the extent of recovery of materials injected into oil wells or subsurface formations during oil and gas exploration and production Disclosed is a method of determining the extent of recovery of materials injected into oil wells or subsurface formations. The method includes injection of one or more tracers into an oil well or into a formation. Included in the method are the steps of introducing ... | 04/25/2006 |
| 7021379 | Methods and compositions for enhancing consolidation strength of proppant in subterranean fractures Improved methods and compositions for consolidating proppant in fractures formed in subterranean zones are provided. An improvement of this invention comprises using proppant particles having a coating of hardenable resin including a gel breaker. The gel breaker fac... | 04/04/2006 |
| 6983797 | Lightweight high strength particles and methods of their use in wells Light weight high strength particles and methods of treating subterranean producing zones utilizing the particles are provided. The light weight high strength particles of the invention are basically comprised of sintered mixtures of a base material and hollow micro... | 01/10/2006 |
| 6938693 | Methods for controlling screenouts Methods are presented to induce a screenout during a subterranean formation fracturing or combined fracturing and gravel packing treatment by laying down a filter cake early in the treatment, then injecting proppant slurry, and then while proppant slurry injection c... | 09/06/2005 |
| 6892813 | Methods for preventing fracture proppant flowback Methods and compositions for preventing fracture proppant particle flowback from subterranean zones penetrated by well bores are provided. The methods basically comprise the following steps. One or more fractures are formed in a subterranean zone and proppant partic... | 05/17/2005 |
| 6887834 | Methods and compositions for consolidating proppant in subterranean fractures Improved methods and compositions for consolidating proppant in subterranean fractures are provided. In accordance with a method of the invention, proppant particles coated with a furfuryl alcohol resin composition are mixed with a gelled liquid fracturing fluid and... | 05/03/2005 |
| 6831108 | Viscoelastic surfactant fluids and related methods of use Viscoelastic surfactant based aqueous fluid systems useful as thickening agents in various applications, e.g. to suspend particles produced during the excavation of geologic formations. The surfactants are zwitterionic/amphoteric surfactants such as dihydroxyl alkyl... | 12/14/2004 |
| 6780804 | Extended particle size distribution ceramic fracturing proppant A proppant mixture with an extended particle size distribution exhibits improved properties, such as crush strength and conductivity, as compared with a conventional product with a narrow size distribution. ... | 08/24/2004 |
| 6772838 | Lightweight particulate materials and uses therefor Methods and compositions useful for sand control and/or hydraulic fracturing of subterranean formations that utilize relatively lightweight and/or substantially neutrally buoyant particles as particulate sand control or proppant material. Particles that may be emplo... | 08/10/2004 |
| 6753299 | Composite silica proppant material An improved lightweight and highly permeable proppant composition for use in increasing the productivity of a gas or oil well. The proppant composition includes equal amounts by weight of uncalcined bauxite, uncalcined shale and quartz, held together with a binder f... | 06/22/2004 |
| 6752208 | Methods of reducing proppant flowback Methods of reducing proppant flowback during production of fluids form subterranean formations are provided. Compressed sieves made from a shape memory material are introduced into hydraulic fracturing opera into hydraulic fractures in subterranean formations during... | 06/22/2004 |
| 6725926 | Method of tracking fluids produced from various zones in subterranean wells Compositions and methods for determining the source of treatment fluids being produced from a production formation having multiple zones by introducing a treatment composition having a tracking material into a zone in the subterranean formation, and detecting the tr... | 04/27/2004 |
