Class 166/371 - Including non-expulsive material placed in well

Subclass of Class 166 - Wells
Definition: Process including a step of introducing into the well a
No. of patents: 140
Last issue date: 06/21/2011

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Number	Title	Issue Date
7963338	Methods to treat produced water Methods are disclosed to treat produced water from hydrocarbons production facilities. The disclosed methods can be used to either: (1) de-NORM produced water; or (2) de-NORM and partially de-salt produced water; or (3) de-NORM and partially de-salt and de-ionize pr...	06/21/2011
7942205	Secondary oil recovery A process for injecting water into a subterranean petroleum-bearing formation for petroleum recovery, said method comprising: a) positioning a selective membrane (14) between an aqueous solution (18) and formation water (20) having a higher solu...	05/17/2011
7789160	Addition of nonionic surfactants to water soluble block copolymers to increase the stability of the copolymer in aqueous solutions containing salt and/or surfactants An aqueous fluid useful for the recovery of crude oil from a subterranean formation, which includes a composition including a mixture of water, a water soluble block copolymer, an inorganic salt and at least one member of the group of a nonionic surfactant having an...	09/07/2010
7789159	Methods to de-sulfate saline streams Methods are disclosed to de-sulfate saline streams such as seawater, brine from seawater desalination plants, and the like. The disclosed methods can also co-produce de-ionized water and inorganic materials from such de-sulfated saline streams. ...	09/07/2010
7441603	Hydrocarbon recovery from impermeable oil shales An economic method for in situ maturing and production of oil shale or other deep-lying, impermeable resources containing immobile hydrocarbons. Vertical fractures are created using horizontal or vertical wells. The same or other wells are used to inject pressurized...	10/28/2008
7441599	Controlling the pressure within an annular volume of a wellbore A process is described for replacing at least a portion of the liquid within the annular volume of a casing system within a wellbore with a second liquid. The second liquid is preselected to provide a measure of control of the pressure within the annular volume as t...	10/28/2008
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
7395858	Process for the selective controlled reduction of the relative water permeability in high permeability oil-bearing subterranean formations A process for the selective controlled reduction of the relative water permeability in high permeability, oil-bearing formations, with negligible reduction of the permeability to oil. The process comprises, for sandstone reservoir rocks, a first layer of cationic po...	07/08/2008
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
7347260	Method for determining tracer concentration in oil and gas production fluids A method for determining the extent of recovery of materials injected or otherwise introduced into oil wells or subsurface formations is practiced using a portable device. The portable device can also be used to determiner the occurrence of a predetermined condition...	03/25/2008
7337845	Well maintenance equipment and procedure The present invention relates to a method of removing deposits from various types of wells (17) including environmental recovery, water supply, horizontal, barrier, injection, recharge, and/or disposal wells (17). The method includes equipping a well (...	03/04/2008
7338924	Oil-in-water-in-oil emulsion An oil-in-water-in-oil emulsion (O/W/O) comprising a first oil-in-water emulsion dispersed in a second oil, and a method of preparing the same. The O/W/O emulsion can be used as a drive fluid in an enhanced oil recovery process. The O/W/O emulsion of this invention ...	03/04/2008
7334641	Composition and method to enhance recovery from oil wells A formulation and method to enhance recovery from an oil wherein the method supplies a mixture of petroleum distillates and terpenoid compounds, and a salt extraction formulation comprising a mixture of humic acid and fulvic acid. The method discontinues the extract...	02/26/2008
7320364	Inhibiting reflux in a heated well of an in situ conversion system Certain embodiments provide a method for treating a subsurface formation. The method includes using heaters to form a heated portion of the subsurface formation. A production conduit is used to direct formation fluid in a vapor phase from the heated portion of the s...	01/22/2008
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
7255133	Fluid pressure system including free floating bladder A fluid pressure system (S) includes a flexible diaphragm bladder (172) located inside a pressure tank (164) installed within a fluid system such as well (168). In preferred aspects, the bladder (172) can be inflated by the introduction o...	08/14/2007
7222673	Production of free gas by gas hydrate conversion A method for releasing gas from a gas hydrate without melting the gas hydrate by substituting the gas with a releasing agent that forms a more stable hydrate structure than the gas. ...	05/29/2007
7216712	Treatment of oil wells Hydrocarbon solids are removed from an oil well by feeding into the oil well a composition comprising at least 40 vol. % dense phase carbon dioxide and at least 30 vol. % of a C1–C3 alkanol component and optionally one or more surfactants, un...	05/15/2007
7185707	Hydrostatic separator apparatus and method The present invention may be used as an apparatus and method for extracting oil from a hydrocarbon material bearing formation. A well may be positioned in a formation having hydrocarbon material with a well casing extending into the formation that may have a number ...	03/06/2007
7164051	Gas hydrate inhibitors A method for inhibiting formation of hydrocarbon hydrates in mixtures of water and a hydrate-forming guest molecule involves adding a reaction product to the mixtures in an effective amount to inhibit formation of the hydrocarbon hydrates under conditions otherwise ...	01/16/2007
7140433	Diamine terminated primary amine-aldehyde sulfur converting compositions and methods for making and using same A new class of sulfur scavenging or converting compositions is disclosed comprising diamine terminated, amine-aldehyde adducts, where the adducts are substantially bimolecular amine-aldehyde adducts and the composition is substantially free of trimer and/or triazine...	11/28/2006
7093663	Methods to solve alkaline-sulfate scales and related-gases problems Methods for the removal of alkaline and sulfate scales from aqueous saline streams such as seawater, oil-gas fields produced waters, formation waters, and the like. Such processing methods can also be extended for the simultaneous removal of hydrogen sulfide, and/or...	08/22/2006
7093651	Water pressure system with pressure tank installed within well casing of well A water pressure system includes a pressure tank installed underground within the well casing of a well. The water pressure system includes a submersible pump connected to the inlet of the pressure tank by a drop pipe. The outlet of the pressure tank is connected to...	08/22/2006
7077208	Method and system for directing fluid flow An apparatus having various conduits moves liquid by passing gas up through it. A collector conduit transports the liquid to the bottom of the unit. A gas-lift conduit mixes the liquid and gas at the bottom and transports the mixture upwards, owing to the rising act...	07/18/2006
7073588	Esterquat acidic subterranean treatment fluids and methods of using esterquats acidic subterranean treatment fluids The present invention relates to acidic treatment fluids that comprise an acid fluid and an ester-containing quaternary ammonium compound (“esterquat”) and methods of their use. One embodiment of the present invention provides a method of inhibiting metal corros...	07/11/2006
7028776	Methods for the inhibition of salt blockages in oil and gas wells Compositions and methods for the inhibition of salt formation in oil and gas wells are disclosed. In particular, nitrilotriacetamide and its salts are effective at treating existing salt formations, and in inhibiting formation of new deposits. ...	04/18/2006
7013924	Fluid pressure system including free floating bladder A fluid pressure system (S) includes a flexible diaphragm bladder (172) located inside a pressure tank (164) installed within a fluid system such as well (168). In preferred aspects, the bladder (172) can be inflated by the introduction o...	03/21/2006
6945327	Method for reducing permeability restriction near wellbore Method is provided for increasing the productivity of gas wells producing from reservoirs where retrograde condensation occurs around the wells. An oil-wetting surfactant is injected in a solvent to oil wet the formation for a selected distance around a well or a hy...	09/20/2005
6913080	Re-use recovered treating fluid This invention is directed to treating fluid production and subterranean formation treating methods as well as compositions for treating fluids that reuse at least part of a prior treating fluid, particularly a fluid having one or more constituents that can be relin...	07/05/2005
6857475	Apparatus and methods for flow control gravel pack A wellbore completion includes a plurality of longitudinal gravel pack sections disposed within a well, the gravel pack sections being capable of imposing a predetermined substantially radial flow restriction upon fluid production flowing radially through the gravel...	02/22/2005
6817427	Device and method for extracting a gas hydrate This invention aims to provide a gas-hydrate extracting device and method whereby a high-performance jet fluid is injected from a nozzle at the tip of an extraction pipe inserted into a gas-hydrate stratum, and whereby said jet fluid breaks said stratum so as to for...	11/16/2004
6818599	Method for in situ forming of unstable oil in water emulsion, especially as well servicing fluid A method for in situ forming of an unstable oil in water emulsion includes the steps of providing a mixture of an aqueous alkali salt solution and a surfactant, and pumping the mixture down a well containing a crude hydrocarbon having an API gravity of less than or ...	11/16/2004
6736211	Method of using alkylsulfonated phenol/aldehyde resins as adsorption reducing agents for chemical flooding A method of recovering oil or contaminants from subterranean reservoirs using a surfactant system where an adsorption reducing agent is injected before, after, and/or with the surfactant system. The adsorption reducing agent is formed by the reaction of an olefin su...	05/18/2004
6702022	Method and device to reduce asphaltene and paraffin accumulations in wells An oil well capsule to reduce the paraffin and asphaltene which accumulate on the walls of the pipes which are used to bring the oil up from underground deposits, and a method of using the oil well capsule. An oil well capsule having a shell encapsulating...	03/09/2004
6635604	Low molecular weight water soluble organic compounds as crystallization point suppressants in brines A brine for use during drilling operations, preferably a completion brine, comprising an amount of a low molecular weight water-soluble organic compound effective to reduce the crystallization point of the brine. The low molecular weight water soluble org...	10/21/2003
6499536	Method to increase the oil production from an oil reservoir A method to increase the production of oil from an oil reservoir is described. The method includes injecting a magnetic or magnetostrictive material through an oil well into the oil reservoir, vibrating the material with the aid of an alternating electric...	12/31/2002
6464009	Pumpable multiple phase compositions for controlled release applications downhole Pumpable multiple phase compositions for carrying agents and components downhole and controllably releasing them by breaking the suspensions are described. The multiple phase composition may have an external or third phase, which in turn has a first pumpa...	10/15/2002
6454493	Method for transporting and installing an expandable steel tubular A method is provided for expanding an expandable steel tubular including the steps of: flattening the unexpanded tubular; transporting the flattened unexpanded tubular to a location at or near the site where the tubular is to be installed; unflattening th...	09/24/2002
6352387	Recirculation-enhanced subsurface reagent delivery system Method and apparatus for delivery of chemical reagents to a subterranean body of soil and groundwater to destroy or enhance mobility of organic compounds using a riser insertable in a borehole having spaced permeable sections separated by a non-permeable ...	03/05/2002
6302206	Treatment for shut-in gas well A method for treating a gas well to prevent any fresh water, which may have condensed out of the gas stream, from damaging the gas producing formation during the shut-in period. The well is shut-in and then an additive, e.g. a salt, alcohol, etc., is inje...	10/16/2001

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Class 166/371 - Including non-expulsive material placed in well