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7617870 |
Extended cement compositions comprising oil-swellable particles and associated methods
A variety of methods and compositions are disclosed herein, including, in one embodiment, a method of cementing in a subterranean formation comprising: providing an extended cement composition...
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7614451 |
Method for constructing and treating subterranean formations
A method for servicing a well comprises providing at least one trailer, providing at least one towing vehicle, providing servicing equipment, supporting the equipment with the trailer, and moving...
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7597146 |
Methods and apparatus for completion of well bores
Methods and devices for completion of well bores and more particularly, to reverse circulation cementing of casing strings in well bores are provided. One example of a method may comprise a method...
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7567856 |
Methods for determining a volumetric ratio of a material to the total materials in a mixing vessel
Methods are provided for determining an estimated volumetric ratio of a material to total materials in a mixing vessel. In various embodiments, the methods may comprise: summing a commanded input...
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7561943 |
Methods for volumetrically controlling a mixing apparatus
Methods of controlling a volumetric ratio of a material to total materials in a mixing vessel are provided. In various embodiments, the methods may comprise: estimating the volumetric ratio of the...
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7552772 |
Locating recess in a shoe for expandable liner system
An apparatus to protect the mounting area of casing when subsequently attaching a tubular is disclosed. A sleeve that defines a sealed cavity having a loose incompressible material inside covers...
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7546873 |
Low temperature barriers for use with in situ processes
A method of forming and maintaining a low temperature zone around at least a portion of a subsurface treatment area is described. The method includes reducing a temperature of heat transfer fluid...
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7540915 |
Oil-well cement slurry
The invention relates to a high-performance cement comprising an alumnic cement with an aluminium content of at least more than 30%; microsilica with a grain size of 0.1 - 20 μm whereby the...
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7540325 |
Well cementing apparatus and method
A cementing apparatus for use in cementing operations using concentric tubing or drill string such as concentric drill pipe, concentric coiled tubing, and the like is provided having an isolation...
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7534745 |
Gelled invert emulsion compositions comprising polyvalent metal salts of an organophosphonic acid ester or an organophosphinic acid and methods of use and manufacture
The present invention relates to emulsion compositions and associated methods. More particularly, the present invention relates to gelled invert emulsion compositions and their associated methods...
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7527095 |
Method of creating a zonal isolation in an underground wellbore
A method of creating a zonal isolation above a target zone in an underground wellbore comprises:
inserting a slurry injection tubing into the wellbore; arranging within an annular space...
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7527099 |
System for sealing a space in a wellbore
A system is provided for sealing a space in a wellbore formed in an earth formation. The system has a swelleable body arranged in the wellbore in a manner so as to seal the space upon swelling of...
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7527094 |
Double barrier system for an in situ conversion process
A barrier system for a subsurface treatment area is described. The barrier system includes a first barrier formed around at least a portion of the subsurface treatment area. The first barrier is...
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7520328 |
Completion apparatus and methods for use in hydrocarbon wells
The present invention provides a cement shoe assembly for use on a string of tubulars in a well. In one aspect of the invention, the cement shoe assembly includes a housing having a lower portion...
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7510020 |
***WITHDRAWN PATENT AS PER THE LATEST USPTO WITHDRAWN LIST***
Wellbore system extending through a salt layer
A wellbore system is provided including a wellbore formed in an earth formation, the wellbore extending into a salt layer of the earth formation. The wellbore system comprises a tubular conduit...
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7490668 |
Method for designing and constructing a well with enhanced durability
Methods for performing cementing operations in a wellbore, designing wells and constructing wells are illustrated. The methods include applying pressure to the interior of casing in the wellbore...
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7487831 |
Downhole surge pressure reduction and filtering apparatus
The present invention provides a downhole cementing apparatus run into a borehole on a tubular. The apparatus is constructed on the pipe in such a way that pressure surge during run-in is reduced...
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7475726 |
Continuous monobore liquid lining system
A process for drilling a well or a portion of a well capable of providing a generally constant interior wall diameter (monobore) and does not require installation of any liner or steel casing. The...
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7464757 |
Method for continuously batch mixing a cement slurry
A method for continuously batch mixing a homogenized cement slurry is provided that includes providing first and second mix tubs which each perform a process which include: receiving a measured...
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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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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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7438133 |
Apparatus and method for radially expanding and plastically deforming a tubular member
An apparatus for radially expanding and plastically deforming a tubular member that includes a valve assembly for permitting the injection of a hardenable fluidic sealing material into an annulus...
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7428928 |
Sealing spring mechanism for a subterranean well
A technique includes deploying a spring downhole, energizing the spring and using the energized spring to form an annular barrier in the well. The spring may be energized prior to being run...
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7428927 |
Cement float and method for drilling and casing a wellbore with a pump down cement float
A cement float collar is made for pumping downhole and into engagement with a groove formed in the casing, called the profile nipple. As such, no restriction is needed in the casing for accepting...
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7422060 |
Methods and apparatus for completing a well
Methods and tools are described to reduce sanding including the steps of fracturing the cement sheath in a localized zone around the casing and having the fractured zone act as sand filter between...
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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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7402204 |
Flexible cementing compositions and methods for high-temperature wells
A well cementing composition comprises an hydraulic cement and flexible, acrylonitrile-butadiene copolymer particulate material. A method of cementing a well comprises mixing the composition with...
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7401646 |
Methods for reverse-circulation cementing in subterranean formations
Methods and systems for reverse-circulation cementing in subterranean formations are provided. An example of a method is a method of cementing casing in a subterranean well bore, comprising...
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7380598 |
Method for detecting fluid leakage from a subterranean formation
A method for the detection of a fluid leak from a plugged well extending from a surface of the earth to penetrate a subterranean formation which contains fluid by logging a collection chamber...
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7380603 |
Well abandonment apparatus
A well abandonment apparatus is described. The apparatus can be run on drillstring and does not require the use of explosives to sever the casing. The apparatus includes both a cutting device to...
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7380594 |
Method of installing a tubular assembly in a wellbore
A method of installing an expandable tubular assembly in a wellbore, the tubular assembly including a plurality of expandable tubular elements, comprising: installing a first tubular element in the...
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7377322 |
Method and apparatus for cementing production tubing in a multilateral borehole
A hydraulically actuated anchor and a mechanically actuated packer are used in combination to secure a production tubing system in a lateral prior to injection of a cement to line the lateral...
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7373980 |
Mono-trip cement thru completion
In systems and methods for production of hydrocarbons fluids from a formation surrounding a wellbore, a production assembly is cemented into place, and excess cement is then cleaned from the...
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7373981 |
Methods of cementing with lightweight cement compositions
Foamed cement compositions comprising density reducing additives and methods of making and using the same are disclosed. In one embodiment, a method of cementing is disclosed. The method of...
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7363975 |
Push/pull belleville stack for use with zertech MTM seal
A settable and unsettable seal arrangement includes a metal-to-metal seal element; a setting/releasing sleeve in operable communication with the seal element; a retraction ring fixedly attached to...
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7363976 |
Well remediation using downhole slurry
A method of remediation of a well is provided utilizing a cement and cement activator plugging composition, in which one of the components is first placed in the well at the desired remediation...
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7357181 |
Apparatus for autofill deactivation of float equipment and method of reverse cementing
A method for cementing a casing in a wellbore, the method having the following steps: attaching a valve to a casing; locking the valve in an open configuration; running the casing and the valve...
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7350573 |
Servicing a wellbore with wellbore fluids comprising perlite
Wellbore fluids comprising an expanded and ground perlite and methods of using the same are disclosed. In one embodiment, the methods include a method of cementing comprising preparing or placing a...
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7337841 |
Casing comprising stress-absorbing materials and associated methods of use
The present invention relates to subterranean drilling and well completion operations, and more particularly, to improved casing that comprises stress-absorbing materials and associated methods of...
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7337840 |
One trip liner conveyed gravel packing and cementing system
A well completion assembly including apparatus for gravel packing and cementing in a single trip. An outer assembly comprises: a liner and screen; a valved gravel packing port; upper and lower...
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7334638 |
Methods of improving the shelf life of a cement composition comprising a coated gas-generating material
According to various embodiments, methods of increasing a shelf life of a gas-generating material comprise: including a C 8 -C 18 hydrocarbon in a mixture used to coat the gas-generating material....
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7325616 |
System and method for completing multiple well intervals
A system and method for completing a well with multiple zones of production includes a casing having a plurality of flapper valves integrated therein for isolating each well zone and a perforating...
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7326670 |
Well service fluid and method of making and using the same
A well service fluid comprising one or more anionic viscoelastic surfactants and one or more polymers is described. The fluids can contain an aqueous or non-aqueous fluid and/or a buffer for...
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7316274 |
One trip perforating, cementing, and sand management apparatus and method
A method and apparatus for running a liner into a well bore, hanging the liner to a casing, perforating the liner, cementing the liner in, setting a liner packer, and establishing sand control, all...
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7311148 |
Methods and apparatus for wellbore construction and completion
The present invention relates methods and apparatus for lining a wellbore. In one aspect, a drilling assembly having an earth removal member and a wellbore lining conduit is manipulated to advance...
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7303008 |
Methods and systems for reverse-circulation cementing in subterranean formations
Methods and systems for reverse-circulation cementing in subterranean formations are provided. An example of a method is a method of cementing casing in a subterranean well bore, comprising...
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7303014 |
Casing strings and methods of using such 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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7297664 |
Cement-free zeolite and fly ash settable fluids and methods therefor
Zeolite and Class F fly ash compositions are provided for use as cement-free settable fluids such as settable spotting fluids and cementitious compositions.
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7296597 |
Methods for sealing and isolating pipelines
A method of performing a servicing operation within a pipeline comprises positioning a swellable component about at a desired location within a pipeline, exposing the swellable component to a...
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7293609 |
Treatment fluids comprising vitrified shale and methods of using such fluids in subterranean formations
Methods and compositions for the treatment of subterranean formations, and more specifically, treatment fluids containing vitrified shale and methods of using these treatment fluids in subterranean...
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