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7604059 |
Downhole tools
An improved centralizer is provided for centralization of tubulars such as casings, liners, production tubing, and production screens, in oil/gas wells. Such a centralizer comprises a tubular body,...
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7597141 |
Flow nozzle assembly
Methods and apparatus provides an improved shunt nozzle which is part of an alternative pathway for a slurry to by-pass an obstruction such as a sand bridge during gravel packing. The nozzle...
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7591313 |
Methods of treating particulates and use in subterranean formations
Provided are methods of modifying the surface stress-activated reactivity of proppant particulates used in subterranean operations. In one embodiment, the methods comprise: providing a plurality of...
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7591312 |
Completion method for fracturing and gravel packing
In one embodiment telescoping members are extended to bridge an annular gap either before or after it is cemented. Some of the telescoping members have screens and others have flow passages that...
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7584799 |
Gravel pack multi-pathway tube with control line retention and method for retaining control line
A unitary gravel pack multi-pathway tube includes a body; a gravel slurry flow passage defined within the body; and a control line protection projection extending from and supported by the body,...
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7580797 |
Subsurface layer and reservoir parameter measurements
Method and system for determining a characteristic of a subsurface formation traversed by a wellbore. A fluid flow rate in the wellbore is established, the flow being associated with fluid movement...
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7562709 |
Gravel pack apparatus that includes a swellable element
A gravel pack apparatus for use in a wellbore includes a screen assembly to filter particulates, at least one shunt conduit to carry gravel slurry, and a swellable element around a portion of the...
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7559357 |
Frac-pack casing saver
A deflection device keeps high velocity gravel slurry flow from directly impinging the wellbore wall in open hole and breaking loose the filter cake coating on the wall or, in a cased hole,...
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7552770 |
Heavy wax stimulation diverting agent
A method and composition for isolating a selected subterranean formation in a subterranean formation having a gravel pack over a plurality of producing zones.
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7546875 |
Integrated sand control completion system and method
An integrated sandface completion tool that can be positioned within a wellbore in a single trip and a method of providing a sandface completion in a wellbore. An embodiment of the integrated...
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7543641 |
System and method for controlling wellbore pressure during gravel packing operations
A technique is provided to facilitate gravel packing in a well. A conduit surrounded by a screen is deployed in an isolated lower wellbore region. The conduit cooperates with one or more valves...
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7543640 |
System and method for controlling undesirable fluid incursion during hydrocarbon production
A technique is provided to control flow in subterranean applications, such as hydrocarbon fluid production applications. The technique utilizes an aggregate formed, at least in part, of particles...
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7540308 |
Method of supplying a powdered chemical composition to a wellsite
A method of conditioning a compacted polymeric powder to a flowable and meterable state. The polymeric powder is compacted during transport such that the flowability is hindered. To increase...
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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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7520326 |
Method and apparatus for performing down hole sand and gravel fracture packing operations
An in-tubing or casing fracture packing assembly including a running tool, HDR sub assembly, a displaceable flow diversion valve by which a filter media slurry is pumped down the annulus of the...
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RE40648 |
System and method for downhole operation using pressure activated valve and sliding sleeve
An isolation system for producing oil and gas from one or more formation zones and methods of use are provided comprising one or more pressure activated valve and one or more tool shiftable valve....
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7497257 |
Particle control screen with depth filtration
A particle control screen includes a support layer. A first filter layer is disposed around the support layer. A second filter layer is disposed around the first filter layer. A third filter layer...
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7493954 |
Systems and methods for installation, design and operation of groundwater monitoring systems in boreholes
Systems and methods for installation and operation of a groundwater monitoring system in a borehole of any angle using a coaxial gas displacement pump with a unique O-ring assembly that serves as a...
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7490667 |
Proppants with soluble composite coatings
A new proppant comprises a proppant particle substrate, a water-soluble external coating on the proppant particle substrate and a microparticulate reinforcing and spacing agent at least partially...
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7478674 |
System and method for fracturing and gravel packing a wellbore
A method is disclosed for fracturing and gravel packing a subterranean well. The method allows gravel slurry to be pumped at high rates to fracture the earthen formation adjacent the wellbore....
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7475725 |
Wellbore gravel packing apparatus and method
A wellbore apparatus and method for use in a wellbore for completion and production are disclosed. The apparatus comprises an outer permeable material ( 15 ) in the wellbore comprising a first...
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7472750 |
Single trip horizontal gravel pack and stimulation system and method
A method for completing a well in a single trip, including: inserting a completion tool assembly into the well, the completion tool assembly having a gravel packing assembly and a service tool...
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7461695 |
System and method for creating packers in a wellbore
A system and method is provided for creating a packer in a wellbore for utilization in a variety of wellbore applications. The packer is created by flowing a slurry of particular matter and liquid...
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7451816 |
Washpipeless frac pack system
A well packing system and method for operating a well packing system wherein an isolation string assembly has a lower circulation valve with lateral flow ports that are operated to an open position...
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7451815 |
Sand control screen assembly enhanced with disappearing sleeve and burst disc
A sand control screen assembly for use in a wellbore includes a tubular base pipe having a first perforated section. The first perforated section has at least a first opening that allows fluid flow...
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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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7431085 |
Gravel pack multi-pathway tube with control line retention and method for retaining control line
A gravel pack multi-pathway tube includes a body and a flow passage at the body. Further, the tube includes a projection at the body, the projection receptive to a control line. A gravel packing...
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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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7422067 |
Deploying an assembly into a well
A technique that is usable with a well includes running an isolation device into the well and using the isolation device to form a seal to create a first region of the well isolating the surface of...
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7419004 |
Method of gravel packing with oil-based carrier fluid
A method is disclosed for gravel packing a hole in a subterranean formation including the step of pumping into the hole a gravel pack composition comprising gravel and a carrier fluid comprising a...
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7413013 |
Surfactant-based fluid loss control agents for surfactant gels and associated fluids and methods
Of the many methods provided, in one aspect, the present invention provides a method comprising: providing a treatment fluid comprising: an aqueous base fluid, a first surfactant, and a...
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7407007 |
System and method for isolating flow in a shunt tube
A technique is provided to selectively control flow along shunt tubes, such as those used in gravel pack operations. The technique utilizes a swellable material valve that comprises a swellable...
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7401648 |
One trip well apparatus with sand control
An apparatus and method for drilling a well bore, placing a liner, cementing and perforating the liner, and injecting or producing fluid, sand-free, through the perforations. The liner has a...
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7395859 |
Method for growth of a hydraulic fracture along a well bore annulus and creating a permeable well bore annulus
A method for growth of a hydraulic fracture or a tall frac is described wherein the tall frac is disposed next to a well bore using a sandpacked annulus. Also, a method for creating a permeable...
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7383884 |
Cross-over tool
A well system comprising an improved cross-over tool is provided. The tool may comprise a debris shield for substantially preventing sand, proppant or other well debris from fouling a flow port...
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7377320 |
Apparatus and method for gravel packing
An improved apparatus and method for gravel packing is provided. The apparatus includes a substantially tubular-shaped base pipe having a plurality of apertures disposed along part of its length...
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7373979 |
Workstring and a method for gravel packing
Disclosed is a workstring for use in a gravel packing system. The workstring includes a washpipe with at least one port and a selectively openable and closeable closure mechanism in operable...
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7373978 |
Method for drilling and completing wells
A method for drilling and completing a gravel packed well is disclosed. The method comprises drilling a wellbore with a drilling fluid, conditioning the drilling fluid, running the gravel packing...
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7367395 |
Sand control completion having smart well capability and method for use of same
A sand control completion ( 100 ) for installation in a wellbore ( 102 ) includes first and second packers ( 114, 116 ) that define a first zone ( 110 ) in the wellbore ( 102 ). A production tubing...
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7363974 |
Gravel packing a well
A technique that is usable with a subterranean well includes communicating a slurry through a shunt flow path and operating a control device to isolate slurry from being communicated to an...
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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...
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7343972 |
System stabilizers and performance enhancers for aqueous fluids gelled with viscoelastic surfactants
An aqueous, viscoelastic fluid gelled with a viscoelastic surfactant (VES) is stabilized and improved with an effective amount of an alkali earth metal oxide and/or alkali earth metal hydroxide....
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7341103 |
Compositions and methods for treating subterranean formations with liquefied petroleum gas
The present invention relates to gelled fluids and methods for using liquefied petroleum gas in subterranean operations. More particularly, the present invention relates to servicing fluids that...
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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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7331388 |
Horizontal single trip system with rotating jetting tool
A method for completing a well in a single trip is described, which includes inserting a completion tool assembly into the wellbore. The completion tool assembly includes a gravel packing assembly...
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7328744 |
Methods and compositions for treating subterranean formations with gelled hydrocarbon fluids
In one embodiment, a method of treating a subterranean formation is provided comprising the steps of providing a gelled liquid hydrocarbon treatment fluid comprising a liquid hydrocarbon and a...
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7322422 |
Inflatable packer inside an expandable packer and method
A completion assembly for use in a well, including at least one inflatable packer; at least one control line and at least one source of pressurized fluid wherein the at least one source of...
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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...
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7316272 |
Determining and tracking downhole particulate deposition
Methods and apparatus provide for the characterization of injected fluid flow within a wellbore. Particular embodiments include injecting a slurry comprising a particulate material and a carrier...
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7299869 |
Carbon foam particulates and methods of using carbon foam particulates in subterranean applications
The present invention relates to carbon foam particulates and their use in subterranean applications such as production enhancement and completion. One embodiment of the present invention provides...
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