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| Number | Title | Issue Date |
| 8047292 | Method and apparatus for preventing slug flow in pipelines Disclosed is a method and system for controlling the formation of liquid or gas slugs along a pipeline. In embodiments, an injection unit injects a liquid surface tension reducing agent, such as a foamant, into the pipeline upstream of the high point. A control unit... | 11/01/2011 |
| 8016041 | Treatment for recycling fracture water gas and oil recovery in shale deposits A method and apparatus for hydrocarbon recovery and/or treatment of frac water includes introducing a volume of water into a formation, recovering the introduced water, with the recovered introduced water further comprising suspended hydrocarbon product. The recover... | 09/13/2011 |
| 7992641 | Method and apparatus for on-site nitrate production for a water processing system An electric plasma arc apparatus and method produces nitrogen compounds, solely using ambient air extracted in proximity to the apparatus. The nitrogen compounds are brought into contact with a water processing system, forming nitrate on-site. Hydrogen sulfide prese... | 08/09/2011 |
| 7861787 | Wellbore fluid treatment tubular and method A wellbore tubular including: an inner tubular wall; an opening through the inner tubular wall; an outer tubular wall positioned about the inner tubular, the outer tubular wall including an opening therethrough; a chamber between the inner tubular wall and the outer... | 01/04/2011 |
| 7721806 | Automatic chemical treatment system with integral flush fluid dispenser and method for using the same A wellbore chemical treating system includes a pressure vessel for containing a treating chemical. The pressure vessel is closed to atmospheric pressure. A first controllably operated valve is disposed in fluid communication between an outlet of the pressure vessel ... | 05/25/2010 |
| 7624805 | Method of inhibiting corrosion in a conduit Corrosive effects arising during oilfield treatment applications are inhibited and/or prevented by introducing into an oil or gas well at least one compound of formula I: wherein: R1 ... | 12/01/2009 |
| RE40448 | Method for remediation of aquifers A method for remediating aquifers and groundwater contaminated, for example by toxic halogenated organic compounds, certain inorganic compounds, and oxidized heavy metals and radionuclides, using the introduction of an innocuous oil, preferably an edible, food grade... | 08/05/2008 |
| 7401653 | Substances to stimulate the extraction of crudeoil and a method of processing them Substances to stimulate the extraction of crude oil and a method, of processing them: This invention is about substances to stimulate the extraction of crude oils, especially the ponderous and paraffin one, not clogging the route and the abutting deposits of the oil... | 07/22/2008 |
| 7398824 | Method for inhibiting or controlling inorganic scale formations with copolymers of acrylamide and quaternary ammonium salts A formulation containing a copolymer derived from a cationic monomer effectively inhibits and controls the formation of inorganic scales. Suitable copolymers include those comprising an acrylamide unit and a quaternary ammonium salt group, and optionally an acrylate... | 07/15/2008 |
| 7395864 | Method and apparatus for preventing slug flow in pipelines Disclosed is a method and system for controlling the formation of liquid or gas slugs along a pipeline. In embodiments, an injection unit injects a liquid surface tension reducing agent, such as a foamant, into the pipeline upstream of the high point. A control unit... | 07/08/2008 |
| 7392846 | Silicate-containing additives for well bore treatments and associated methods Methods and compositions for use in subterranean operations, and more particularly, additives comprising one or more silicates used to treat tar resident in a well bore, and methods of use, are provided. In one embodiment, the method comprises a method of treating t... | 07/01/2008 |
| 7392848 | Methods to produce sulfate-free saline water and gypsum Methods are disclosed for the selective separation of sulfate from a saline stream such as seawater to produce nearly sulfate-free saline stream for oil-fields water injection operations. The separated sulfate in the form of gypsum from the treated saline stream can... | 07/01/2008 |
| 7367400 | Motor protector and method for chemical protection of same A chamber for use in a submersible pump assembly. The submersible pump assembly has a submersible motor which is connected to a power source and which will drive a submersible pump in the submersible pump assembly. A motor protector with expansion chamber is connect... | 05/06/2008 |
| 7367398 | Device for heating and thermally insulating at least one undersea pipeline Apparatus for heating and lagging at least one main undersea pipe for conveying a flow of hot effluent. The apparatus includes a covering of thermally insulating material surrounding the main pipe(s), and covered by a leaktight outer protective casing and an interna... | 05/06/2008 |
| 7350571 | 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... | 04/01/2008 |
| 7334635 | Methods for fracturing subterranean wells A method of forming a propped fracture comprising: providing a fracture having a far-well bore area and a near-well bore area; placing first proppant particulates at least partially coated with an adhesive substance; placing a portion of second proppant particulates... | 02/26/2008 |
| 7334636 | Methods of creating high-porosity propped fractures using reticulated foam One embodiment of the prevent invention provides a method of creating a high porosity propped fracture comprising creating a slurry comprising a treatment fluid, proppant particulates, pieces of reticulated foam having cells, and an adhesive substance such that the ... | 02/26/2008 |
| 7331394 | Autonomous well intervention system A self-contained well intervention system which can be deployed from a lightweight vessel and coupled directly to a wellhead is described. The system includes valve means for providing a suitable well barrier and sealing the intervention system to allow an emergency... | 02/19/2008 |
| 7331389 | Re-use of recovered treating fluid Treating fluid production and subterranean formation treating methods as well as treating fluid compositions that reuse at least part of a prior treating fluid, particularly a fluid having one or more constituents that can be relinked. This includes conditioning a s... | 02/19/2008 |
| 7331397 | Gas drive fluid lifting system A passive collection and pneumatic lifting system located in a well comprising a pneumatic tube, a fluid tube mounted within the pneumatic tube creating an annulus and a jet barrel chamber formed between the pneumatic tube and fluid tube in fluid communication at th... | 02/19/2008 |
| 7325603 | Methods of well treatment A method is disclosed relating to the treatment of a hydrocarbon well, which method comprises administering down a bore hole thermophilic microorganisms capable of generating a well treatment chemical, in particular wherein the bore hole is a producer bore hole and ... | 02/05/2008 |
| 7318474 | Methods and compositions for controlling formation fines and reducing proppant flow-back Provided herein are methods for controlling the migration of particulates within a portion of a subterranean formation that comprise aqueous tackifying treatment fluids, curable resin compositions, and/or noncurable resin compositions. ... | 01/15/2008 |
| 7318473 | Methods relating to maintaining the structural integrity of deviated well bores Methods of enhancing at least partially the structural integrity of a longitudinal portion of a deviated well bore are provided. The methods include providing a gravel matrix composition; providing a longitudinal portion of a deviated well bore; and placing a suffic... | 01/15/2008 |
| 7318476 | Automatic chemical treatment system with integral flush fluid dispenser A wellbore chemical treating system includes a pressure vessel for containing a treating chemical. The pressure vessel is closed to atmospheric pressure. A first controllably operated valve is disposed in direct fluid communication between an outlet of the pressure ... | 01/15/2008 |
| 7311145 | Re-use of recovered treating fluid Treating fluid production and subterranean formation treating methods as well as treating fluid compositions that reuse at least part of a prior treating fluid, particularly a fluid having one or more constituents that can be relinked. This includes conditioning a s... | 12/25/2007 |
| 7311144 | Apparatus and method for increasing well production using surfactant injection An apparatus and method for injecting surfactant into a well for coal bed methane (CBM) recovery, tight sand gas extraction, and other gas extraction techniques provides for the mixing of surfactant and water near the downhole end of the well, maximizing water remov... | 12/25/2007 |
| 7299875 | Methods for controlling particulate migration Many methods are provided including methods of stabilizing a portion of a subterranean formation or reducing the production of particulates from a portion of a subterranean formation comprising contacting the portion of the subterranean formation with a pre-flush fl... | 11/27/2007 |
| 7290609 | Subterranean well secondary plugging tool for repair of a first plug A secondary plugging tool is disclosed for use in a subterranean plug, such as in a plugged and/or abandoned well. The repaired plug may be of a cementicious material, or a mechanically, hydraulically or electrically set plug or packer. The plugging tool includes an... | 11/06/2007 |
| 7281581 | Methods of hydraulic fracturing and of propping fractures in subterranean formations A method of propping at least one fracture in a subterranean formation, that comprises forming a plurality of proppant aggregates, each proppant aggregate comprising a binding fluid and a filler material, and introducing the plurality of proppant aggregates into the... | 10/16/2007 |
| 7273099 | Methods of stimulating a subterranean formation comprising multiple production intervals A method of stimulating a production interval adjacent a well bore having a casing disposed therein, that comprises introducing a carrier fluid comprising first particulates into the well bore, packing the first particulates into a plurality of perforations in the c... | 09/25/2007 |
| 7273103 | Cement compositions comprising environmentally compatible defoaming agents and methods of use Provided herein are defoaming agents that comprise lecithin and a solvent. Optionally, they may comprise hydrophobic particles. One embodiment provides a method comprising: providing a well fluid that comprises foam; providing a defoaming agent that comprises lecith... | 09/25/2007 |
| 7270180 | Scaling inhibitors and method for using the same in high density brines A formulation containing a copolymer derived from a cationic monomer effectively inhibits and controls the formation of inorganic scales. The formulation has particular application in the removal of zinc sulfide and iron sulfide scales formed when zinc bromide brine... | 09/18/2007 |
| 7267171 | Methods and compositions for stabilizing the surface of a subterranean formation Methods comprising providing a fracturing fluid comprising proppant particulates at least partially coated with a hardenable resin composition that comprises a hardenable resin component and a hardening agent component, wherein the hardenable resin component compris... | 09/11/2007 |
| 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 |
| 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 |
| 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 |
| 7252146 | Methods for preparing slurries of coated particulates Methods are provided that include a method of creating a stable slurry of coated particulates wherein the slurry is capable of being stored for at least 2 hours before use comprising the steps of: providing resin coated particulates wherein the resin comprises a res... | 08/07/2007 |
| 7243726 | Enhancing a flow through a well pump A method that is usable with a well includes injecting a chemical through a chemical injection line into a flow that passes through a well pump. The method includes controlling the injection of the chemical to enhance the flow through the pump. ... | 07/17/2007 |
| 7237609 | Methods for producing fluids from acidized and consolidated portions of subterranean formations A method of stimulating and stabilizing an area of a subterranean formation comprising placing an acid fluid into an area of a subterranean formation and allowing the acid to at least partially dissolve a portion of the area of the subterranean formation; placing a ... | 07/03/2007 |
