Did You Know...
...that the inventor of the electric motor was a blacksmith named Thomas Davenport? Described as "a brilliantly unsuccessful inventor", Davenport invented the first rotary electric motor. In 1836 he headed out -- on foot -- from his Vermont home to file a patent application at the Patent Office in Washington, D.C. By the time he got there, he had squandered away his money and couldn't afford the $30 filing fee so he turned around and went home. When he later mailed in his application with money he'd raised, the Patent office was destroyed in a fire. He did finally get credit for his invention on Feb. 5, 1837.
PatentStorm News
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 |
| 8066059 | Methods and devices for one trip plugging and perforating of oil and gas wells A tubing conveyed tool for use in perforating a well bore utilizing abrasive perforating techniques. The perforating tool is particularly useful in non-vertical wells. The perforating tool is designed to permit running and setting a bridge plug, and then perforating... | 11/29/2011 |
| 8047276 | Tool for enhancing the extraction of landfill gas An apparatus and method to internally provide apertures inside polyvinyl chloride (PVC), high density polyethylene (HDPE), or any polymeric pie, plastic pipe-riser (blank casing) in existing landfill gas recovery wells (extraction wells) that have been installed at ... | 11/01/2011 |
| 7913753 | System for injecting a substance into an annular space A system for injecting a substance into the annular space surrounding a well tubular with an assembly to be inserted into a well tubular. The assembly includes a cutting part capable of making a hole through a well tubular; a substance chamber for storage of the sub... | 03/29/2011 |
| 7740059 | Well casing perforator A well casing perforator for efficiently recovering available water in a previously drilled well by perforating the well casing. The well casing perforator generally includes a frame adapted to be inserted within a well casing and move in a direction parallel to a c... | 06/22/2010 |
| 7434315 | Method and device for pipe splitting A device and method for pipe replacement is shown. A pipe replacement device is shown that includes at least one scoring wheel to provide a more progressive cut that provides consistency in the split of the pipe. A pulling force is reduced using pipe replacement dev... | 10/14/2008 |
| 7413015 | Perforating gun A system and method of generating one or more perforations in a well casing while simultaneously restricting burr formation is provided. A perforating gun assembly includes a gun housing having an outer surface designed to engage the inner surface of the well casing... | 08/19/2008 |
| 7353866 | Stimulation tool having a sealed ignition system An apparatus for stimulating a subterranean formation includes a first tube, a second tube, a combustion body and an ignition propagator. The second tube is positioned within the first tube interior and the second tube interior is sealed from the first tube interior... | 04/08/2008 |
| 7284613 | Method and apparatus for assembling stackable gun system inside a well bore A method for assembling a stackable perforating gun system inside a well bore is provided that includes attaching a first gun section of the stackable perforating gun system to a tracking assembly, and transporting the first gun section within the well bore using th... | 10/23/2007 |
| 7278484 | Techniques and systems associated with perforation and the installation of downhole tools A technique to install a tool in a well includes running the tool into the well and fixing the tool to the well with a fixing agent without pumping the fixing agent through a central passageway of the tool. The tool may be a perforating gun that includes a casing bo... | 10/09/2007 |
| 7255171 | Method and apparatus for manufacturing an expandable slotted tube A method of manufacturing an expandable slotted tube fabricated from at least one tubular element and at least two annular elements connected to the opposite ends of the tubular element by means of butt joints wherein axially extending slots are formed at a uniform ... | 08/14/2007 |
| 7249918 | Cutting machine Cutting apparatus having a ram axis gear tube (32) equipped with internal threads engageable with external threads (48) of a main shaft (42). A tool can be fixed to the main shaft (42). The external threads (48) of the main shaft (... | 07/31/2007 |
| 7243725 | Surge chamber assembly and method for perforating in dynamic underbalanced conditions A surge chamber assembly (70) for use in a wellbore includes a housing (80) having one or more openings (112), a surge chamber (100) and a combustion chamber (98). The openings (112) provide fluid communication between the e... | 07/17/2007 |
| 7231982 | Perforating gun quick connection system A connection system to be used in conjunction with a perforating gun comprising a top sub formed to receive one end of a gun body of a perforating gun, a circumferential groove disposed on the outer surface of the gun body, and a collet secured to the top sub. The c... | 06/19/2007 |
| 7228907 | High energy gas fracturing charge device and method of use A high energy gas fracturing device, adapted to be lowered into a well. The device comprises a closed tube made of strong material, sized to fit into the well and having at least one sidewall, which defines a set of openings. A set of closure elements seal the openi... | 06/12/2007 |
| 7217065 | Modular pipe breaking assembly and method A pipe breaking assembly is shown with a modular design that allows a user to more economically purchase a single base unit that is adaptable using a number of elements. Combinations of elements such as blade portions and expander cones, etc. allow the modular assem... | 05/15/2007 |
| 7210524 | Perforating gun quick connection system A connection system to be used in conjunction with a perforating gun comprising a top sub formed to receive one end of a gun body of a perforating gun, a circumferential groove disposed on the outer surface of the gun body, and a collet secured to the top sub. The c... | 05/01/2007 |
| 7195066 | Engineered solution for controlled buoyancy perforating The weight of a shaped charge carrier is predetermined as a buoyancy control parameter for perforating guns. Each charge carrier comprises a co-axial assembly of inner and outer carrier units. Both carrier units may be fabricated from low density metals or composite... | 03/27/2007 |
| 7172370 | Cutting system, device, and method for splitting pipes A cutting system for splitting pipes includes a main body and at least one blade and at least two blade mount assemblies by which the blade may optionally be connected to the main body. The first blade mount assembly, in a particular fitted state, holds the blade at... | 02/06/2007 |
| 7159657 | Shaped charge loading tube for perforating gun The loading tube comprises cups forming cup cavities for enclosing an explosive charge within each of the cups. The loading tube has ridges and valleys providing longitudinal and lateral strength to the loading tube. The loading tube is constructed of a formed mater... | 01/09/2007 |
| 7134374 | Safety cable cutter for cutting a cable used in servicing an oil and gas well A safety cable cutter used for cutting a cable used in servicing an oil and gas well. A centrifugal arm roller and a guide roller are mounted on top of a frame. The cable is received on the rollers as the cable is lowered down a well bore. Mounted on ends of the cen... | 11/14/2006 |
| 7111685 | Downhole sampling apparatus and method A method and apparatus for reducing debris in a perforation in a wellbore extending from the wellbore into a subterranean formations is provided. A housing is positioned in the wellbore, and an arm is extended therefrom. One or more plugs are positionable in the per... | 09/26/2006 |
| 7066261 | Perforating system and method A system for perforating a well includes a plurality of perforating guns suspended in the well from the wireline or coiled tubing. A downhole electronic command circuit is provided for firing each of the guns in response to a command signal from the surface. A condu... | 06/27/2006 |
| 7044225 | Shaped charge A shaped charge is formed having a pressed polymer pellet positioned between the explosive charge and the metal liner. The shock wave resulting from detonation of the explosive passes through the polymer to the liner. The collapse of the liner results in the formati... | 05/16/2006 |
| 7036599 | Method and apparatus for cutting underwater structures A method for the cutting of underwater structures below the level of the sea bottom on which they are installed, comprises determining an ideal plane of cutting, having considered the characteristic features of the structure i.e. its morphology and its positioning o... | 05/02/2006 |
| 7021381 | Method and apparatus for removing casing A method and apparatus for removing a string of casing from a well bore. The method and apparatus include a plurality of drill bits substantially aligned with each other for drilling a plurality of holes in the string of casing. The plurality of holes can be used to... | 04/04/2006 |
| 6990879 | Drain line re-perforator device A drain line re-perforator device for punching holes in clogged drain pipe sections in a sewage disposal system is provided. The re-perforator device includes an outer cylindrically-shaped housing member and a dual-actuating ram assembly disposed concentrically with... | 01/31/2006 |
| 6971449 | Borehole conduit cutting apparatus and process The apparatus is used for cutting an opening through the wall of a conduit located in a borehole traversing the subsurface formations. The apparatus includes a body adapted to be lowered into the conduit to a desired level. The body is formed by a cylindrical wall d... | 12/06/2005 |
| 6966378 | Method and apparatus for perforating a well The present invention provides for a perforating gun having stackable sections that latch, enabling the gun string to carry both compressive and tensile loads. This allows for the downhole assembly of guns of any desired length, and for the entire gun string to be r... | 11/22/2005 |
| 6962203 | One trip completion process A process and assembly for completing and providing sand control in a subterranean well and/or fracturing and preventing proppant flowback in a subterranean formation in a single trip. One or more perforating gun assemblies are juxtaposed and secured to one or more ... | 11/08/2005 |
| 6959765 | Explosive pipe severing tool A pipe severing tool is arranged to align a plurality of high explosive pellets along a unitizing support structure whereby all explosive pellets are inserted within or extracted from a tubular housing as a singular unit. Electrically initiated exploding wire detona... | 11/01/2005 |
| 6942034 | Extent of detonation determination method using seismic energy A method of determining the extent of detonation of a Well Perforating Gun is disclosed. The Perforating Gun is positioned in a borehole and the detonation is initiated at one point on the essentially curvilinear array of explosive charges. Seismic waves emanate fro... | 09/13/2005 |
| 6926087 | Electro-mechanical wireline anchoring system and method An electro-mechanical wireline assembly as shown for anchoring a wireline tool string in place during a wellbore under balanced well conditions. The assembly includes an upper connection for connection to the wireline leading to the well surface and a lower connecto... | 08/09/2005 |
| 6920923 | Section mill for wells A section mill for casings used in oil wells to cut predetermined portions for repair purposes. An elongated cylindrical assembly is inserted through the casing and it includes at least two spaced apart apertures with one blade member pivotally mounted within each a... | 07/26/2005 |
| 6920945 | Method and system for facilitating horizontal drilling A method for facilitating horizontal drilling by positioning in a well casing a shoe defining a passageway extending from an upper opening in the shoe through the shoe to a side opening in the shoe. A rod is connected, through at least one block and pin assembly ope... | 07/26/2005 |
| 6892815 | Coal bed methane borehole pipe liner perforation system A coalbed methane borehole pipe liner perforation system comprises a plastic pipe punch that slips down inside a coalbed methane production borehole lined with a non-perforated plastic pipe. A ground-penetrating radar is used inside the plastic-pipe lined borehole t... | 05/17/2005 |
| 6851471 | Perforating gun A perforating gun assembly useful in hydrocarbon well completion. The gun is assembled in a carrier made from straight walled tubing as a primary structural member with complementary male and female threads cut into opposite ends so that gun assemblies may be direct... | 02/08/2005 |
| 6827145 | Methods and apparatus for severing nested strings of tubulars An apparatus and method for use in severing casing as it is pulled from a wellbore. An apparatus is first provided, comprising a clamping assembly, a drilling assembly and a cutting assembly. In one aspect, the apparatus is disposed at the end of a telescopic arm, w... | 12/07/2004 |
| 6729406 | Method and apparatus for performing cutting operations in a subterranean well Apparatus and associated methods of using the apparatus are disclosed for performing cuts in a subterranean well. The apparatus utilizes linear shaped charges arranged in an endless pattern which are used to cut a pattern in a downhole structure. The charges are dis... | 05/04/2004 |
| 6712143 | Borehole conduit cutting apparatus and process The apparatus is used for cutting an opening through the wall of a conduit located in a borehole traversing the subsurface formations. The apparatus includes a body adapted to be lowered into the conduit to a desired level. The body is formed by a cylindrical wall d... | 03/30/2004 |
| 6695056 | System for forming a window and drilling a sidetrack wellbore The present invention discloses and claims a system for forming an opening, or window, in a downhole tubular for the subsequent formation of a lateral wellbore. In the system of the present invention, an apparatus is run into the parent wellbore which inc... | 02/24/2004 |
