"The man with a new idea is a crank until the idea succeeds."
Samuel Clemens
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 8162054 | Methods and apparatuses for releasing a chemical into a well bore upon command One apparatus for releasing a chemical in a well bore includes a casing collar configured to couple to a casing string. A chemical container is disposed within the casing collar, and the casing collar is configured to release the chemical from the chemical reservoir... | 04/24/2012 |
| 8162055 | Methods of activating compositions in subterranean zones The present disclosure is directed to a system and method for managing cement in a subterranean zone. In some implementations, a method of cementing in a subterranean formation includes positioning a cement slurry including a plurality of activation devices in a wel... | 04/24/2012 |
| 8127846 | Wiper plug perforating system A method and system for cementing and perforating a wellbore in a single step by coupling a perforating gun with a wiper plug. The method includes injecting cement in a wellbore having casing therein and an annulus between the casing and wellbore. A wiper plug is dr... | 03/06/2012 |
| 8096357 | Casing make-up and running tool adapted for fluid and cement control The apparatus of the present invention provides a top drive supported tool for making up and running casing strings into a borehole. The tool comprises a fill-up and circulation assembly and a launcher assembly that is adapted to cooperate with a connectable cement ... | 01/17/2012 |
| 8091640 | Method and device for cementing a well or a pipe Introducing within a well or pipe a mandrel equipped with an inflatable membrane which can expand radially under the effect of an internal pressure. Positioning the mandrel opposite the portion to be treated, in introducing a pressurized fluid within the membrane su... | 01/10/2012 |
| 8079416 | Plug for a perforated liner and method of using same A plug for insertion into a perforation in a liner or tubular. The plug comprises a base portion and one or more extendible portions. The base portion is securable to and receivable within the perforation. The base portion and the one or more extendible portions sea... | 12/20/2011 |
| 8074715 | Methods of setting particulate plugs in horizontal well bores using low-rate slurries Methods for setting particulate plugs in at least partially horizontal sections of well bores are disclosed. In one embodiment, a method comprises the step of selecting a deposition location for a particulate plug within the at least partially horizontal section of ... | 12/13/2011 |
| RE42877 | 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 into the earth. The drilling assembly includes a first fluid flow pat... | 11/01/2011 |
| 8033331 | Cement diffuser for annulus cementing A cement diffuser and method for allowing a ported tubular to be cemented in place, while keeping an annulus about a port of the ported tubular generally free of set cement. The cement diffuser includes a collection of fibers secured over the port and extending out ... | 10/11/2011 |
| 7963331 | Method and apparatus for isolating a jet forming aperture in a well bore servicing tool An embodiment of a well bore servicing apparatus includes a housing having a through bore and at least one high pressure fluid aperture in the housing, the fluid aperture being in fluid communication with the through bore to provide a high pressure fluid stream to t... | 06/21/2011 |
| 7950456 | Casing deformation and control for inclusion propagation Casing deformation and control for inclusion propagation in earth formations. A method of forming at least one inclusion in a subterranean formation includes the steps of: installing a liner within a casing section in a wellbore intersecting the formation; and expan... | 05/31/2011 |
| 7938186 | Casing shoes and methods of reverse-circulation cementing of casing A method having the following steps: running a circulation valve comprising a reactive material into the well bore on the casing; reverse-circulating an activator material in the well bore until the activator material contacts the reactive material of the circulatio... | 05/10/2011 |
| 7874361 | Methods and devices for forming a wellbore with casing A method for cementing a tubular in a wellbore in a subterranean formation, according to one or more aspects of the present disclosure, comprises connecting a circulating tool to a slip and a top drive; gripping a first tubular with the slip above the surface of the... | 01/25/2011 |
| 7866391 | Shoe for wellbore lining tubing This invention relates to a shoe for wellbore lining tubing and to a method of locating wellbore lining tubing in a wellbore. In one embodiment, a shoe (30) is disclosed which includes a tubular outer body (32) that is coupled to a wellbore lining tubi... | 01/11/2011 |
| 7866390 | Casing make-up and running tool adapted for fluid and cement control The apparatus of the present invention provides a top drive supported tool for making up and running casing strings into a borehole. The tool comprises a fill-up and circulation assembly and a launcher assembly that is adapted to cooperate with a connectable cement ... | 01/11/2011 |
| 7798226 | Cement diffuser for annulus cementing A cement diffuser and method for allowing a ported tubular to be cemented in place, while keeping an annulus about a port of the ported tubular generally free of set cement. The cement diffuser includes a collection of fibers secured over the port and extending out ... | 09/21/2010 |
| 7798225 | Apparatus and methods for creation of down hole annular barrier Methods and apparatus are provided for performing an expedited shoe test using an expandable casing portion as an annular fluid barrier. Further provided are methods and apparatus for successfully recovering from a failed expansion so that a shoe test can be complet... | 09/21/2010 |
| 7789148 | Method and apparatus for consolidating a wellbore Methods and tools to consolidate a wellbore by displacing conventional cement slurry or any other settable fluid, without any permanent casing are useful. A bladder is inflated inside the bore to act as a mold and to form an annulus that can be filled by cement slur... | 09/07/2010 |
| 7757764 | Method for drilling and casing a wellbore with a pump down cement float A cement float collar can be positioned downhole and used in a wellbore completion operation after drilling a wellbore with casing. The cement float collar is made for pumping downhole and into engagement with a groove formed in the casing, called the profile nipple... | 07/20/2010 |
| 7748453 | 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 cement composition comprising cement, water, and an expanded and gro... | 07/06/2010 |
| 7743829 | Cement flow control tool An apparatus for controlling the flow of fluid into a borehole through a conduit has a decelerating means adapted to be positioned within the conduit. The fluid could typically comprise drilling mud and/or cement, and in some embodiments, some of the cement can exit... | 06/29/2010 |
| 7740067 | Method to control the physical interface between two or more fluids A method of servicing a wellbore comprising preparing a liquid plug, allowing the liquid plug to polymerize into a highly deformable elastic plug, and placing the highly deformable elastic plug into a wellbore. A method of servicing a wellbore comprising preparing a... | 06/22/2010 |
| 7717179 | Method and apparatus to set a plug The invention provides an apparatus to be lowered in a borehole, comprising: (i) a delivery section for delivering a plugging fluid; (ii) a setting section comprising a longitudinal element and a flexible and permeable sleeve into which the plugging fluid is deliver... | 05/18/2010 |
| 7708070 | Shaft plugging system A shaft plug for a mine shaft, the shaft plug comprising an inflatable bladder adapted to be inflated by pressurised gas, the bladder being adapted to be positioned within a shaft prior to inflation and to be inflated to contact the walls of the shaft to thereby sea... | 05/04/2010 |
| 7703524 | Cutting windows for lateral wellbore drilling A system and method for cutting windows for lateral wellbore drilling. A method of cutting a window through a sidewall structure for drilling a lateral wellbore through the window includes the steps of: providing an internal profile in the sidewall structure; then i... | 04/27/2010 |
| 7703523 | Apparatus and method for use in a well bore Apparatus for use above and below a restriction in a well bore and a method of operation is described. The apparatus comprises an upper element, such as a wiper, operable in the well bore above the restriction and a lower element, which may be a lower wiper, operabl... | 04/27/2010 |
| 7635026 | Methods and devices for forming a wellbore with casing An example of a method for cementing a casing within an earthen formation includes the steps of providing a gripping mechanism connected to a cementing assembly and a top drive; gripping the casing with the gripping mechanism; sealingly engaging the casing with a se... | 12/22/2009 |
| 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 the towing vehicle, so as to move the trailer along with the equipment... | 11/10/2009 |
| 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 for providing fluidic access to an outer annulus of a casing string w... | 10/06/2009 |
| 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 the mounting location on the casing. The cementing of the casing takes ... | 06/30/2009 |
| 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 with an enlarged inside diameter and a drillable cement shoe disposed ... | 04/21/2009 |
| 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 during curing of a cement composition in the annulus. Wells constructed... | 02/17/2009 |
| 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 by allowing fluid to enter the pipe and utilize the fluid pathway of t... | 02/10/2009 |
| 7464758 | Model HCCV hydrostatic closed circulation valve Devices and methods for methods for cleaning of excess cement from a production assembly as well as from the annulus surrounding the production assembly. A hydrostatic closed circulation valve (HCCV) assembly is described that is primarily actuatable between open an... | 12/16/2008 |
| 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 quantity of solid and liquid constituents of a cement mixture; mixing th... | 12/16/2008 |
| 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 between the tubular member and a preexisting structure. ... | 10/21/2008 |
| 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 or latching the float collar and the portion of casing including the g... | 09/30/2008 |
| 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 downhole or after being run downhole, depending on the particular embodiment... | 09/30/2008 |
| 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 the formation and openings in the casing, with the openings being bes... | 09/09/2008 |
| 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 plugging depth. Next, the other component is placed in the well above t... | 08/12/2008 |