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7624804 |
Method for recovering oil from a gas-lifted oil well penetrating a subterranean oil-bearing formation
In a method for optimizing gas lift operations in the production of crude oil, a surfactant is injected with the lift gas into the an oil well such that the surface tension between the lift gas and...
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7618926 |
Method of foaming saturated or near saturated brines with synergistic mixtures
A synergistic blend for foaming concentrated brines comprises at least one foaming agent (in an amount between from about 10 to about 90 weight percent of the blend) and a compound of the formula:
...
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7607484 |
Foamed cement compositions comprising oil-swellable particles and methods of use
Of the many compositions and methods provided herein, an embodiment of a method comprises introducing a foamed cement composition into a subterranean formation, wherein the foamed cement...
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7514391 |
Method and composition for removing filter cake from a horizontal wellbore using a stable acid foam
A composition and method for removing a filter cake from a horizontal wellbore in a subterranean formation using a composition containing a inorganic or organic acidic material, a cationic...
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7514390 |
Method for removing filter cake from a horizontal wellbore using acid foam
A composition and method for removing a filter cake from a horizontal wellbore in a subterranean formation using a composition containing a inorganic or organic acidic material, a cationic...
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7424913 |
Methods of using substantially hydrated cement particulates in subterranean applications
Methods of gravel packing comprising providing a gravel packing fluid comprising a base fluid and substantially hydrated cement particulates, introducing the gravel packing fluid into a...
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7399732 |
Fracturing fluid containing amphoteric glycinate surfactant
An improved method and fracturing fluid for hydraulic fracturing of a subterranean formation, the fracturing fluid including a surfactant, a water soluble or dispersible anionic organic salt, an...
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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,...
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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...
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7293611 |
CO2 miscible optimized hydrocarbon blends and methods of using CO2 miscible optimized hydrocarbon blends
A method of treating a subterranean formation comprising the steps of providing a servicing fluid comprising carbon dioxide and a hydrocarbon blend, wherein the hydrocarbon blend comprises at least...
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7290614 |
Methods for effecting controlled break in pH dependent foamed fracturing fluid
The invention provides a fluid for use in a subterranean formation penetrated by a wellbore, the fluid comprising: (a) water; (b) delayed release acid; (c) a surfactant comprising a tertiary alkyl...
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7275596 |
Method of using 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,...
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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...
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7261158 |
Coarse-foamed fracturing fluids and associated methods
A method of fracturing a subterranean formation comprising the steps of: providing a coarse-foamed fracturing fluid comprising a liquid fracturing fluid component, a gas, proppant particulates, and...
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7255170 |
Foamed cement compositions, additives, and associated methods
Exemplary embodiments relate to cementing operations and, more particularly, to foamed cement compositions, foaming and stabilizing additives, and associated methods. A foaming and stabilizing...
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7211547 |
Resin compositions and methods of using such resin compositions in subterranean applications
The present invention relates to curable, permeable resin compositions and methods of using such compositions. One embodiment of provides a method of creating a resin mass comprising the steps of...
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7205263 |
Recyclable foamed fracturing fluids and methods of using the same
Fracturing fluids and methods of fracturing a subterranean formation using such fluids are provided. A fracturing fluid having a first pH is foamed by introducing a gas to the fluid. The fracturing...
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7204311 |
Methods for controlling migration of particulates in a subterranean formation
Method of treating a portion of a subterranean formation comprising: placing a pre-pad fluid into a portion of a subterranean formation wherein the pre-pad fluid comprises a low-viscosity aqueous...
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7201227 |
Method and composition for treating a subterranean formation with splittable foams
Disclosed herein is a method of treating a subterranean formation utilizing a fluid having a splittable foamer, i.e., a fluid that creates a stable foam when it contacts the formation but that...
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7199085 |
Colloidal and colloidal-like systems in aqueous, clay-based fluids
The present invention generally relates to improved clay-based compositions comprising colloidal or colloidal-like phases (e.g., emulsions, aphrons) and methods of using those compositions. The...
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7199083 |
Self-generating foamed drilling fluids
Self-generating foamed fluids for circulation through a well during drilling operations and methods for circulating such self-generating foamed drilling fluids are provided for. The drilling fluid...
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7156175 |
Methods of generating gas in well fluids
The present invention relates to methods of chemically generating gas in aqueous fluids utilized in the drilling and completion of wells such as drilling fluids, spacer fluids, and aqueous acid...
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7143827 |
Well completion spacer fluids containing fibers and methods
Well completion spacer fluids containing fibers and methods of using the spacer fluids are provided. A method of the invention for displacing a first fluid from a well bore with an incompatible...
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7124822 |
Foamed completion fluids and methods
Foamed completion fluids and methods of completing subterranean zones penetrated by well bores are disclosed. A method of completing a subterranean zone penetrated by a well bore comprises the...
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7117943 |
Friction reducers for fluids comprising carbon dioxide and methods of using friction reducers in fluids comprising carbon dioxide
Reduced friction fluids comprising an aqueous liquid, carbon dioxide, and a polymer comprising acrylamide and an acrylamide copolymer derivative. And methods of treating a subterranean formation...
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7108066 |
Variable density treatment fluids and methods of using such fluids in subterranean formations
The present invention provides variable density fluid compositions and methods for using such compositions in a subterranean formation. One exemplary embodiment of the variable density fluid...
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7100692 |
Tertiary oil recovery combined with gas conversion process
A process for the recovery of oil from a subsurface reservoir in combination with the production of liquid hydrocarbons from a hydrocarbonaceous stream involving:
(i) separating an oxygen/nitrogen...
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7093658 |
Foamed treatment fluids, foaming additives, and associated methods
In one embodiment, this invention presents a foaming additive that comprises at least one amidopropyl betaine having the formula:
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7087556 |
Compositions for treating subterranean zones penetrated by well bores
The present invention provides compositions of treating subterranean zones penetrated by well bores in primary well cementing operations, well completion operations, production stimulation...
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7040419 |
Foamed compositions and methods of use in subterranean zones
The current invention provides improved methods and compositions for completing a well bore. In one aspect, the current invention provides a process for preparing a foamed well composition. The...
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7037881 |
Stabilized colloidal and colloidal-like systems
The present invention generally relates to improved compositions comprising stabilized colloidal or colloidal-like phases (e.g., emulsions, aphrons) and methods of using those compositions. The...
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7036590 |
Two stage subterranean zone fracturing fluids and methods
The present invention discloses two stage subterranean zone fracturing fluids and methods. A two stage subterranean zone fracturing fluid of the invention comprises a first stage fluid comprising a...
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7033977 |
Compositions and methods for sealing formations
The present invention generally relates to compositions of matter and methods of using those compositions. More particularly, and as part of one of the preferred embodiments, the present invention...
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7033975 |
Use of surface-modified nanoparticles for oil recovery
The present invention provides the use of surface-modified nanoparticles in fluids used to recover hydrocarbon from underground formations. The use of surface-modified nanoparticles in such fluids...
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7013975 |
Foamed cement slurries, additives and methods
The present invention relates to foamed cement slurries, additives and methods. A foamed cement slurry of the invention comprises a hydraulic cement, sufficient water to form a slurry, sufficient...
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6992048 |
Methods of generating gas in well treating fluids
The present invention relates to methods of generating gas in and foaming well treating fluids during pumping of the treating fluids or after the treating fluids are placed in a subterranean zone,...
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6978834 |
Foamed and non-foamed cement compositions including silane treated amorphous silica and methods
The present invention provides improved methods of cementing and cement compositions. A cement composition of the invention comprises hydraulic cement, silica hydrophobicized with a mixture of...
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6966379 |
Methods of fracturing a subterranean formation using a pH dependent foamed fracturing fluid
Methods of fracturing a subterranean formation include providing a fracturing fluid having a first pH. The fracturing fluid may be made by combining a gelling agent, a surfactant, and a proppant....
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6945329 |
Methods and compositions for placing particulate materials in subterranean zones
Methods and compositions for placing particulate materials in subterranean zones penetrated by well bores. In one embodiment, the methods comprise: providing a compacted particulate material fluid...
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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...
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6915854 |
Foaming agents for use in coal seam reservoirs
A well treatment fluid composition that comprises a carrier fluid and an amphoteric surfactant, and optionally a viscosifying agent and proppant, is well suited for use in fracturing coal beds to...
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6904972 |
Fracturing with viscoelastic surfactant based fluid
A subterranean fracturing fluid, which is relatively harmless to both the environment and subterranean formations includes an amphoteric surfactant, specifically a betaine surfactant and an organic...
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6899177 |
Methods of cementing subterranean zones with cement compositions having enhanced compressive strengths
Methods of cementing subterranean zones penetrated by well bores using cement compositions having enhanced compressive strengths are provided. A method of the invention basically comprises the...
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6858566 |
Methods of generating gas in and foaming well cement compositions
The present invention relates to methods of generating gas in and forming cement compositions that may be introduced into a subterranean zone. A method of the present invention provides a method of...
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6852676 |
Well completion foamed spacer fluids and methods
Well completion foamed spacer fluids and methods of using the foamed spacer fluids are provided. A method of the invention for displacing a first fluid from a well bore with an incompatible second...
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6844297 |
Fracturing method using aqueous or acid based fluids
An improved method and fracturing fluid for hydraulic fracturing of a subterranean formation, the fracturing fluid comprising a surfactant, a water soluble or dispersible anionic organic salt, an...
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6838418 |
Fracturing fluid
There is described a fracturing fluid comprising a polar base, 0.1-5.0% of a mid-molecular weight polyacrylate, and an activator for ionizing the polyacrylate to a hydroscopic state.
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6828280 |
Methods for stimulating hydrocarbon production
Methods are provided for stimulation of hydrocarbon production from low permeability formations by hydraulic fracturing, acid fracturing, and hydraulic fracturing followed by gravel packing in a...
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6793730 |
Methods of cementing
The present invention provides improved methods for cementing. The methods are basically comprised of the steps of preparing a cement composition comprised of hydraulic cement, water, gas,...
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6770601 |
Aphron-containing aqueous well drilling and servicing fluids
The invention provides a method and fluid for drilling or servicing a well in a subterranean formation containing lost circulation zones or depleted, low pressure reservoirs. The fluid comprises an...
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