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...that Thomas Edison's patent application on his phonograph was approved by the Patent Office in just seven weeks? In contrast, it took Gordon Gould, the inventor of the laser, 30 years to obtain his patent -- finally awarded in 1988!
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| Number | Title | Issue Date |
| 7424912 | Wellbore treatment apparatus and method A treatment apparatus and method for wellbore instability is described including a caliper with one or more radially extending arms which are capable of extending and retracting movement in a radial direction and a fluid supply facility to deliver treatment fluid fr... | 09/16/2008 |
| 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 having a central channel substantially therethrough and a service too... | 02/19/2008 |
| 7331482 | Dispense pump with heated pump housing and heated material reservoir A heated dispense pump overcomes the limitations of conventional systems providing for reliable and efficient heating of the dispensed material in a system that is compact, lightweight, and accurate. A pump housing and cartridge body are formed of a thermally conduc... | 02/19/2008 |
| 7314083 | Slow rotation fluid jetting tool for cleaning a well bore A rotary jetting tool for connection to a hollow, fluid conducting workover string has a main tool body with a hollow central passageway and a rotatable jet carrier mounted on a depending central shaft. A rotor, with fluid conducting passageways is mounted on the ce... | 01/01/2008 |
| 7201238 | Low friction face sealed reaction turbine rotors Rotary jetting tool including a rotor with axially-opposed pressure-balanced mechanical face seals. Vented upper mechanical face seal enables the rotor to be operated with the relativity low starting torque achievable using reaction forces from offset jets energized... | 04/10/2007 |
| 7191830 | Annular pressure relief collar The present invention is an apparatus for relieving annular fluid pressure between nested casing strings. The invention includes a pressure relief collar formed of a cylindrical housing and a set of end connections disposed on opposite sides of the cylindrical housi... | 03/20/2007 |
| 7185704 | Service tool with flow diverter and associated method A downhole service tool is provided that may include a body having an interior passageway, at least one exit port through which fluid may flow from the interior passageway to an exterior of the tool, and at least one diverting channel adapted to cause fluid exiting ... | 03/06/2007 |
| 7178745 | Dispense tip with vented outlets In a fluid pump and cartridge assembly, a cartridge includes a material inlet port, a material outlet port, and a feed screw. The feed screw delivers fluid to be dispensed from the fluid inlet to the outlet port. The fluid inlet is preferably elongated in a directio... | 02/20/2007 |
| 7159660 | Hydrajet perforation and fracturing tool Methods and apparatus for fracturing a subterranean formation which use a fracturing tool. The fracturing tool includes a hydrajet tool, with at least one fluid jet and at least one fracturing port extending through the liner. The fracturing tool further includes a ... | 01/09/2007 |
| 7096950 | Combined milling and scraping tool A downhole tool (1) for providing the dual role of cleaning and milling within a wellbore casing or liner is described. In an embodiment scraper blades (6) are mounted on a body (2) together with a milling sleeve (4). Additionally, a cent... | 08/29/2006 |
| 7083011 | Fluid drilling head A fluid drilling head has a plurality of nozzles (3, 4, 5, 6) in a rotatable nozzle assembly (2) to provide high pressure cutting jets (7). The head is provided with a gauging ring (10) having an annular clearance (11) to the rotat... | 08/01/2006 |
| 7082952 | Well cleaning system A well-cleaning system (10) is provided with a control system (30) where waste liquid level sensors (35, 36) co-operate with timers (39, 40) to control the frequency and duration of the well-cleaning cycles. Chemicals can be injected into... | 08/01/2006 |
| 7069995 | Remedial system to flush contaminants from tubing string A method of cleaning debris from a string of production tubing in a well enables removal without pulling the string of rods that extend through the tubing. A rotary pump is suspended to a lower end of the tubing for pumping well fluid through the tubing to a wellhea... | 07/04/2006 |
| 7051821 | Adjustable hole cleaning device An adjustable hole cleaning device is provided for cleaning a hole in a subterranean formation. A drillstring containing the device is rotated to drill a hole through the subterranean formation. While rotating the drillstring, drilling fluid is circulated through th... | 05/30/2006 |
| 7011158 | Method and apparatus for well bore cleaning Apparatus connected to the downhole end of a tubing string for cleaning and flushing wells has a threaded connection to the string and at least one primary jet to direct circulating gases toward the downhole end of the well, together with a plurality of secondary je... | 03/14/2006 |
| 7000853 | System and method for control of fluid dispense pump In a fluid pump and cartridge assembly, a cartridge includes a material inlet port, a material outlet port, and a feed screw. The feed screw delivers fluid to be dispensed from the fluid inlet to the outlet port. The fluid inlet is preferably elongated in a directio... | 02/21/2006 |
| 6957783 | Dispense tip with vented outlets In a fluid pump and cartridge assembly, a cartridge includes a material inlet port, a material outlet port, and a feed screw. The feed screw delivers fluid to be dispensed from the fluid inlet to the outlet port. The fluid inlet is preferably elongated in a directio... | 10/25/2005 |
| 6923871 | Coiled tubing wellbore cleanout Method and apparatus for substantially cleaning fill from a borehole, variously including in preferred embodiments disturbing particulate solids of fill while RIH, entraining particulates while POOH, jetting downhole while RIH and jetting uphole while POOH, and cont... | 08/02/2005 |
| 6840315 | Device for cleaning an inner pipe inserted into a gas or oil producing well A device for cleaning an inner pipe which comprises a nozzle head comprised of a feed borehole axially disposed therein, at least two rotation nozzles communicating with the feed borehole, at least two cleaning nozzles communicating with the feed borehole and a shaf... | 01/11/2005 |
| 6758276 | Method and apparatus for displacing drilling fluids with completion and workover fluids, and for cleaning tubular members A tubular body or mandrel incorporated into a string of tubular pipe, on which first and second swab cups and first and second metal brushes and a casing scraper are mounted, is run into a cased earth borehole to displace a first fluid in the borehole, usually a dri... | 07/06/2004 |
| 6523610 | Methods and apparatus for forming metal casings in well bores Methods and apparatus for forming metal or metal alloy casings in well bores are provided. A method of the invention comprises the steps of providing and pumping a fluid suspension of a particulate metal or metal alloy into a pipe string within a well bor... | 02/25/2003 |
| 6397864 | Nozzle arrangement for well cleaning apparatus An apparatus for cleaning subterranean wellbores is described. The apparatus comprises a rotatable jet head with less than five axially separated nozzles through which an abrasive fluid is discharged. The nozzles are mounted with an axial separation of pr... | 06/04/2002 |
| 6311774 | Method and apparatus for securing a well casing to a wellbore A well casing for receiving well fluid from a producing formation includes a first tubular section that has a tortuous outer surface for directing the flow of a bonding agent around the exterior of the first tubular section. The first tubular section has ... | 11/06/2001 |
| 6289987 | Integral blade downhole wash tool Apparatus for efficient cleaning of downhole equipment in boreholes, especially oil and gas wells drilled offshore from floating drilling vessels. The apparatus is a wash tool having an elongated central body with a longitudinal bore therethrough. A plura... | 09/18/2001 |
| 6189618 | Wellbore wash nozzle system A wash nozzle for wellbore washing operations has been invented, the wash nozzle, in one aspect having a central mandrel with a top, a bottom, and a fluid flow bore therethrough from top to bottom, at least one mandrel port through the central mandrel for... | 02/20/2001 |
| 6082473 | Drill bit including non-plugging nozzle and method for removing cuttings from drilling tool A non-plugging nozzle and self-cleaning drilling tool incorporating the nozzle is provided. The nozzle has a body that defines a central passageway extending axially from the top to the bottom of the body. The central passageway defines an inlet orifice a... | 07/04/2000 |
| 6065541 | Cleaning device A cleaning device for a well bore which is adapted to be connected to a drill string for insertion into the well bore and through which cleaning fluid is pumped, comprises an elongated outer sleeve having an axially extending through bore therein and at l... | 05/23/2000 |
| 6062311 | Jetting tool for well cleaning An apparatus for cleaning subterranean wellbores is described. The apparatus comprises a sleeve member which is fixed to a part of the drillstring and a rotatable jet head with nozzles through which an abrasive fluid is discharged. The nozzles are mounted... | 05/16/2000 |
| 6012517 | Treating non-naturally occurring subsurface soil contaminants with pneumatic injection of dry media An apparatus for pneumatically fracturing a soil formation, and thereafter utilizing or maintaining the fracture network thus formed by continuous injection of a gas stream into the fracture network, and introducing into that gas stream dry media which is... | 01/11/2000 |
| 5839511 | Blowout preventer wash-out tool A tool for washing out drill cuttings accumulations in blowout preventer stacks connected to oil and gas well prior to testing the blowout preventers. The tool utilizes a finned tubular member and a brush to break away and fluidicly scour drill cuttings a... | 11/24/1998 |
| 5836394 | Well regeneration apparatus A well regeneration apparatus and method of accomplishing same are provided. A scrubber pump is associated with a device for mechanically cleaning a well casing for washing and scrubbing a filter pipe portion of the well casing, and a gravel bed that surr... | 11/17/1998 |
| 5765756 | Abrasive slurry jetting tool and method A fluid jetting arrangement for fluid jetting a surface including a body (B) to receive jetting nozzle extenders (NE) which in one embodiment comprise a plurality of jetting nozzle extenders having voids there between providing surfaces for controlling th... | 06/16/1998 |
| 5484016 | Slow rotating mole apparatus A slow rotating mole apparatus for use in hydrablasting wellbores and pipelines. The apparatus generally consists of a motor section with a rotor rotatable in response to fluid flow through the motor section, a speed reducer section connected to the motor... | 01/16/1996 |
| 5445220 | Apparatus for increasing productivity by cutting openings through casing, cement and the formation rock A perforator to increase conductivity of a deposit bearing region of oil, gas, and/or water saturating a rock formation having a wellbore hole therethrough and, thus, increase production by cutting elongated openings (slots) through casing, cement bond an... | 08/29/1995 |
| 5363927 | Apparatus and method for hydraulic drilling A process and apparatus for high pressure drilling are disclosed. The apparatus comprises an essentially solid drill head with horizontally extendable nozzle arms hingedly connected by shear pins thereto. Flow of high pressure fluid both extends the nozzl... | 11/15/1994 |
| 5259458 | Subsea shelter and system for installation A subsea abandoned wellhead protection system which may be installed underwater without the need for underwater assistance from divers or the like, the system allowing full site preparation and installation from the surface. The present invention teaches ... | 11/09/1993 |
| 5183111 | Extended reach penetrating tool and method of forming a radial hole in a well casing An extended reach penetrating tool which includes a tubing string lowered into a casing, anchored in position and including a cutting tool for forming a lateral hole in the casing. A formation penetrating tool is then substituted for the cutting tool on t... | 02/02/1993 |
| 5033545 | Conduit of well cleaning and pumping device and method of use thereof The device employs the jet pump principle to bring a power fluid to sedimented solids and the like plugging a conduit, and it includes at least one nozzle which directs the power fluid in a high-velocity jet against the solids to bring the solids into sus... | 07/23/1991 |
| 5029644 | Jetting tool An apparatus for hydraulically jetting a well tool having a sliding member includes a positioning tool for operably engaging the sliding member, and a jetting tool connected at a rotatable connection to the positioning tool. The jetting tool is thus rotat... | 07/09/1991 |
| 4967841 | Horizontal well circulation tool Apparatus and method are provided for washing apparatuses in use of remedial tubing. A cylindrical housing has a fluid expansion chamber with fluid passageways communicating between the housing and the chamber. A turbulating sleeve freely rotates relative... | 11/06/1990 |
