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7615518 |
Composition for denaturing and breaking down friction-reducing polymer and for destroying other oil well contaminants
A composition and method for breaking down and denaturing friction-reducing compound introduced into the ground during the drilling of oil wells and for destroying other contaminants and biohazards...
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7584793 |
Method for treating subterranean formation
A method is provided for treating a subterranean formation penetrated by a well bore comprising the steps of:
a) forming a phosphate ester gelled hydrocarbon fracturing fluid comprising a...
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7581594 |
Surfactant method for improved oil recovery from fractured reservoirs
A method to enhance oil recovery from a fractured carbonate reservoir, the reservoir being accessible via a production well. The method includes injecting a surfactant solution including...
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7578347 |
Method of sealing an annular space in a wellbore
A method of sealing a space in a wellbore formed in an earth formation comprises inserting a plurality of swellable particles into the space by pumping them in a carrier fluid, the particles being...
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7565929 |
Degradable material assisted diversion
Degradable material assisted diversion (DMAD) methods for well treatment, DMAD treatment fluids, and removable plugs for DMAD in downhole operations. A slurry of solid degradable material is...
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7563377 |
Method for removing iron deposits in a water system
A method and composition and system which for the oxidation, clean up, removal and control of iron and iron deposits in water and the removal of iron deposits and bacterial bio-films from surfaces...
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7559372 |
Composition and process for enhanced oil recovery
The present invention includes a cost effective custom-designed blend of organic chemicals to stimulate oil production. The invention includes a chemical composition for use in drilling operations...
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7559370 |
Restricting fluid passage and novel materials therefor
Water problems in the production of oil or gas from subterranean formations is addressed by providing a method of restricting passage of a fluid from a first location to a second location in a...
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7556098 |
Oil recovery method employing amphoteric surfactants
An oil recovery method employing amphoteric surfactants with the steps of: a) Injecting into one or more injection wells an aqueous solution containing a mixture of amphoteric surfactants...
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7552771 |
Methods to enhance gas production following a relative-permeability-modifier treatment
Provided embodiments relate to introducing a water-drainage-rate-enhancing agent into a subterranean formation to enhance gas production following a relative-permeability-modifier treatment to...
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7543646 |
Suspension of concentrated particulate additives containing oil for fracturing and other fluids
The handling, transport and delivery of particulate materials, particularly fine particles, may be difficult. Alkaline earth metal oxide particles such as magnesium oxide (MgO) may be suspended in...
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7543644 |
Concentrated suspension of particulate additives for fracturing and other fluids
The handling, transport and delivery of particulate materials, particularly fine particles, may be difficult. Alkaline earth metal oxide particles such as magnesium oxide (MgO) may be suspended in...
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7533723 |
Well bore treatment fluid
A well bore treatment fluid and methods for selectively reducing the outflow of water during recovery of hydrocarbons from a hydrocarbon reservoir in a formation are described, wherein fluid...
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7530408 |
Method of consolidating an underground formation
A method of stabilizing an underground formation surrounding a borehole comprising placing a treatment fluid in the formation, the treatment fluid comprising cross-linkable polymer and a...
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7530395 |
Methods of using wellbore servicing compositions
A method of servicing a wellbore comprising placing in the wellbore a composition comprising a calcium aluminate cement and at least one gelation inhibitor, and allowing the composition to set. A...
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7530394 |
Cement compositions for low temperature applications
A method of servicing a wellbore comprising placing in the wellbore a cement composition comprising light-burned magnesium oxide, water and an alkaline metal chloride, and allowing the composition...
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7530393 |
Friction loss reduction in viscoelastic surfactant fracturing fluids using low molecular weight water-soluble polymers
Adding relatively low molecular weight water-soluble friction loss reduction polymers to an aqueous fluid gelled with a viscoelastic surfactant (VES) increases the critical generalized Reynold's...
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7527103 |
Procedures and compositions for reservoir protection
A flow conduit having at least one orifice is placed in the vicinity of a flow source, which in one non-limiting embodiment may be a hydrocarbon reservoir. The flow pathway between the orifice and...
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7527102 |
Methods and compositions for diverting acid fluids in wellbores
Viscoelastic surfactant (VES) gelled aqueous fluids containing a VES, an internal breaker, and optionally a viscosity enhancer are useful as diverting fluid for directing placement of an acid into...
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7513306 |
Method for natural gas production
A method of dissociating methane hydrate deposits in-situ is provided in which a supply of oxygen, carbon dioxide, and fuel are provided, the oxygen and the carbon dioxide are mixed to form an...
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7501065 |
Methods for treating agricultural drainage water and the like
Zero discharge processing methods for the treatment of agricultural drainage water (ADW) are disclosed. The disclosed methods are capable of meeting the three critical issues in treating ADW: (1)...
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7500522 |
Fluid with asphaltene control
Asphaltene control additives are added to base fluids which are introduced directly or indirectly into a hydrocarbon-bearing formation to mitigate asphaltene deposition in the formation which...
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7500521 |
Methods of enhancing uniform placement of a resin in a subterranean formation
Methods of enhancing uniform placement of a resin in a subterranean formation comprising: introducing a preflush fluid comprising an oil-soluble diverting agent into a portion of a subterranean...
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7500520 |
Method of cementing well bores
A method of cementing an oil well with a silicate-forming gel solution and an acid-soluble cement separated by a polymeric spacer which permits solubilization and removal of the cement by HCl in...
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7497278 |
Methods of degrading filter cakes in a subterranean formation
Many methods are presented including one that comprises: providing a well drill-in and servicing fluid comprising an aqueous fluid, a viscosifier, a fluid loss control additive, a bridging agent,...
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7493957 |
Methods for controlling water and sand production in subterranean wells
Methods for stabilizing unconsolidated or weakly consolidated portions of a subterranean formation and controlling the production of water in those portions include introducing a consolidating...
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7493956 |
Subsurface safety valve with closure provided by the flowing medium
Devices and methods for selectively closing and opening flow of production fluid (oil, gas, or water) through the flowbore of a production string by chemically altering the phase of fluid media...
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7488705 |
Oilwell sealant compositions comprising alkali swellable latex
Sealant compositions comprising an alkali swellable latex and a pH increasing material and methods of using the same to service a wellbore are provided. In one embodiment, the sealant composition...
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7484564 |
Delayed tackifying compositions and associated methods involving controlling particulate migration
Methods and compositions relating to delayed tackifying compositions that comprise an aqueous tackifying agent and a delayed acid-releasing activator that may be used to stabilize particulates and...
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7481273 |
Method of using water-in-oil emulsion to remove oil base or synthetic oil base filter cake
Fluid producing or injecting wells may be treated with a water-in-oil emulsion for the removal or inhibition of unwanted particulates, including pipe dope, asphaltenes and paraffins. In addition,...
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7475730 |
Method of treating well with foamed composition
The annular surface between the tubing and casing of an oil or gas well may be contacted with a foamed well treatment composition containing a gas, a foaming agent and a liquid well treatment...
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7475728 |
Treatment fluids and methods of use in subterranean formations
The present invention relates to subterranean treatment operations. More particularly, the present invention relates to improved treatment fluids and methods of using such improved treatment fluids...
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7475727 |
Methods of improving conformance control in fractured hydrocarbon reservoirs
Three methods for improving the blocking ability of gels by improving the performance of gels in fractured reservoirs are provided. First method utilizes overload of a crosslinker, the second...
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7464760 |
Inhibiting reservoir souring using a treated injection water
A process for inhibiting souring in a hydrocarbon reservoir provides a feed water including a plurality of phosphorous constituents and having an elevated phosphorous concentration. At least some...
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7462581 |
Treatment fluids comprising starch and ceramic particulate bridging agents and methods of using these fluids to provide fluid loss control
Compositions relating to fluid loss control operations are provided. In some embodiments, fluid loss treatment fluid compositions are provided that may comprise ceramic particulate bridging agents,...
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7458424 |
Tight formation water shut off method with silica gel
A delayed gelling system useful in conformance control in the production of petroleum from subterranean formations, especially low permeability formations, is disclosed. The gelling system...
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7455112 |
Methods and compositions relating to the control of the rates of acid-generating compounds in acidizing operations
Of the many methods provided, in one embodiment, a method is provided that comprises: providing an acid-generating fluid that comprises an acid-generating compound, a base fluid, and a salt;...
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7451817 |
Methods of using casing strings in subterranean cementing operations
Improved casing strings, and methods of using improved casing strings in subterranean cementing operations, are provided. An example of an apparatus is a pipe string comprising at least one pipe...
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7448451 |
Methods for controlling migration of particulates in a subterranean formation
Methods of controlling particulate migration in a portion of a subterranean formation comprising placing a pre-flush fluid into the portion of the subterranean formation; and then, placing a...
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7448450 |
Drilling and cementing with fluids containing zeolite
Methods and compositions for cementing, especially drilling fluids that comprise zeolite and a carrier fluid, and cementing compositions made with such drilling fluids.
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7445044 |
Polymer mixtures for crosslinked fluids
Treatment fluids comprising gelling agents that comprise crosslinkable polymers and certain biopolymers, and methods of use in subterranean operations, are provided. In one embodiment, the present...
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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...
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7441596 |
Swelling element packer and installation method
A sealing element that swells on exposure to well fluids present or added to the wellbore is assembled to the mandrel in a manner to induce circumferential stresses proximately to the inside...
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7413016 |
***WITHDRAWN PATENT AS PER THE LATEST USPTO WITHDRAWN LIST***
Polymer mixtures for crosslinked fluids
Treatment fluids comprising gelling agents that comprise crosslinkable polymers and certain biopolymers, and methods of use in subterranean operations, are provided. In one embodiment, the present...
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7409990 |
Downhole mixing of encapsulated plug components for abandoning a well
A two part encapsulated cementing system is mixed downhole in a method of plugging an abandoned well. Using this two part system, one of the components is first placed in the well at the desired...
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7407010 |
Methods of coating particulates
Methods comprising: providing at least a plurality of liquid hardenable resin coated particulates that have been at least partially coated with a liquid hardenable resin component; providing at...
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7407008 |
Weighted zero solids loss circulation, fluid loss and insulating annular space fluid systems
Loss circulation fluids contain aqueous based compositions having at least one alkali metal formate and at least one thermally activated self-crosslinkable gel forming material, wherein the...
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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...
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7398829 |
Methods of limiting leak off and damage in hydraulic fractures
Methods for treating a formation penetrated by a wellbore which improves fluid loss control during treatment. In some aspects, the treatments include preparing an aqueous fluid including one or...
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7398826 |
Well treatment with dissolvable polymer
Well treatment is disclosed that includes injecting a well treatment fluid with insoluble polyol polymer such as polyvinyl alcohol (PVOH) dispersed therein, depositing the insoluble polymer in the...
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